eventespresso / event-espresso-core

vendor/phenx/php-svg-lib/src/Svg/Surface/CPdf.php

Indentation +6361 added lines, -6361 removed lines

@@ -20,1276 +20,1276 @@ 
 
 class CPdf
 {
-    const PDF_VERSION = '1.7';
-
-    const ACROFORM_SIG_SIGNATURESEXISTS = 0x0001;
-    const ACROFORM_SIG_APPENDONLY =       0x0002;
-
-    const ACROFORM_FIELD_BUTTON =   'Btn';
-    const ACROFORM_FIELD_TEXT =     'Tx';
-    const ACROFORM_FIELD_CHOICE =   'Ch';
-    const ACROFORM_FIELD_SIG =      'Sig';
-
-    const ACROFORM_FIELD_READONLY =               0x0001;
-    const ACROFORM_FIELD_REQUIRED =               0x0002;
-
-    const ACROFORM_FIELD_TEXT_MULTILINE =         0x1000;
-    const ACROFORM_FIELD_TEXT_PASSWORD =          0x2000;
-    const ACROFORM_FIELD_TEXT_RICHTEXT =         0x10000;
-
-    const ACROFORM_FIELD_CHOICE_COMBO =          0x20000;
-    const ACROFORM_FIELD_CHOICE_EDIT =           0x40000;
-    const ACROFORM_FIELD_CHOICE_SORT =           0x80000;
-    const ACROFORM_FIELD_CHOICE_MULTISELECT =   0x200000;
-
-    const XOBJECT_SUBTYPE_FORM = 'Form';
-
-    /**
-     * @var integer The current number of pdf objects in the document
-     */
-    public $numObj = 0;
-
-    /**
-     * @var array This array contains all of the pdf objects, ready for final assembly
-     */
-    public $objects = [];
-
-    /**
-     * @var integer The objectId (number within the objects array) of the document catalog
-     */
-    public $catalogId;
-
-    /**
-     * @var integer The objectId (number within the objects array) of indirect references (Javascript EmbeddedFiles)
-     */
-    protected $indirectReferenceId = 0;
-
-    /**
-     * @var integer The objectId (number within the objects array)
-     */
-    protected $embeddedFilesId = 0;
-
-    /**
-     * AcroForm objectId
-     *
-     * @var integer
-     */
-    public $acroFormId;
-
-    /**
-     * @var int
-     */
-    public $signatureMaxLen = 5000;
-
-    /**
-     * @var array Array carrying information about the fonts that the system currently knows about
-     * Used to ensure that a font is not loaded twice, among other things
-     */
-    public $fonts = [];
-
-    /**
-     * @var string The default font metrics file to use if no other font has been loaded.
-     * The path to the directory containing the font metrics should be included
-     */
-    public $defaultFont = './fonts/Helvetica.afm';
-
-    /**
-     * @string A record of the current font
-     */
-    public $currentFont = '';
-
-    /**
-     * @var string The current base font
-     */
-    public $currentBaseFont = '';
-
-    /**
-     * @var integer The number of the current font within the font array
-     */
-    public $currentFontNum = 0;
-
-    /**
-     * @var integer
-     */
-    public $currentNode;
-
-    /**
-     * @var integer Object number of the current page
-     */
-    public $currentPage;
-
-    /**
-     * @var integer Object number of the currently active contents block
-     */
-    public $currentContents;
-
-    /**
-     * @var integer Number of fonts within the system
-     */
-    public $numFonts = 0;
-
-    /**
-     * @var integer Number of graphic state resources used
-     */
-    private $numStates = 0;
-
-    /**
-     * @var array Number of graphic state resources used
-     */
-    private $gstates = [];
-
-    /**
-     * @var array Current color for fill operations, defaults to inactive value,
-     * all three components should be between 0 and 1 inclusive when active
-     */
-    public $currentColor = null;
-
-    /**
-     * @var array Current color for stroke operations (lines etc.)
-     */
-    public $currentStrokeColor = null;
-
-    /**
-     * @var string Fill rule (nonzero or evenodd)
-     */
-    public $fillRule = "nonzero";
-
-    /**
-     * @var string Current style that lines are drawn in
-     */
-    public $currentLineStyle = '';
-
-    /**
-     * @var array Current line transparency (partial graphics state)
-     */
-    public $currentLineTransparency = ["mode" => "Normal", "opacity" => 1.0];
-
-    /**
-     * array Current fill transparency (partial graphics state)
-     */
-    public $currentFillTransparency = ["mode" => "Normal", "opacity" => 1.0];
-
-    /**
-     * @var array An array which is used to save the state of the document, mainly the colors and styles
-     * it is used to temporarily change to another state, then change back to what it was before
-     */
-    public $stateStack = [];
-
-    /**
-     * @var integer Number of elements within the state stack
-     */
-    public $nStateStack = 0;
-
-    /**
-     * @var integer Number of page objects within the document
-     */
-    public $numPages = 0;
-
-    /**
-     * @var array Object Id storage stack
-     */
-    public $stack = [];
-
-    /**
-     * @var integer Number of elements within the object Id storage stack
-     */
-    public $nStack = 0;
-
-    /**
-     * an array which contains information about the objects which are not firmly attached to pages
-     * these have been added with the addObject function
-     */
-    public $looseObjects = [];
-
-    /**
-     * array contains information about how the loose objects are to be added to the document
-     */
-    public $addLooseObjects = [];
-
-    /**
-     * @var integer The objectId of the information object for the document
-     * this contains authorship, title etc.
-     */
-    public $infoObject = 0;
-
-    /**
-     * @var integer Number of images being tracked within the document
-     */
-    public $numImages = 0;
-
-    /**
-     * @var array An array containing options about the document
-     * it defaults to turning on the compression of the objects
-     */
-    public $options = ['compression' => true];
-
-    /**
-     * @var integer The objectId of the first page of the document
-     */
-    public $firstPageId;
-
-    /**
-     * @var integer The object Id of the procset object
-     */
-    public $procsetObjectId;
-
-    /**
-     * @var array Store the information about the relationship between font families
-     * this used so that the code knows which font is the bold version of another font, etc.
-     * the value of this array is initialised in the constructor function.
-     */
-    public $fontFamilies = [];
-
-    /**
-     * @var string Folder for php serialized formats of font metrics files.
-     * If empty string, use same folder as original metrics files.
-     * This can be passed in from class creator.
-     * If this folder does not exist or is not writable, Cpdf will be **much** slower.
-     * Because of potential trouble with php safe mode, folder cannot be created at runtime.
-     */
-    public $fontcache = '';
-
-    /**
-     * @var integer The version of the font metrics cache file.
-     * This value must be manually incremented whenever the internal font data structure is modified.
-     */
-    public $fontcacheVersion = 6;
-
-    /**
-     * @var string Temporary folder.
-     * If empty string, will attempt system tmp folder.
-     * This can be passed in from class creator.
-     */
-    public $tmp = '';
-
-    /**
-     * @var string Track if the current font is bolded or italicised
-     */
-    public $currentTextState = '';
-
-    /**
-     * @var string Messages are stored here during processing, these can be selected afterwards to give some useful debug information
-     */
-    public $messages = '';
-
-    /**
-     * @var string The encryption array for the document encryption is stored here
-     */
-    public $arc4 = '';
-
-    /**
-     * @var integer The object Id of the encryption information
-     */
-    public $arc4_objnum = 0;
-
-    /**
-     * @var string The file identifier, used to uniquely identify a pdf document
-     */
-    public $fileIdentifier = '';
-
-    /**
-     * @var boolean A flag to say if a document is to be encrypted or not
-     */
-    public $encrypted = false;
-
-    /**
-     * @var string The encryption key for the encryption of all the document content (structure is not encrypted)
-     */
-    public $encryptionKey = '';
-
-    /**
-     * @var array Array which forms a stack to keep track of nested callback functions
-     */
-    public $callback = [];
-
-    /**
-     * @var integer The number of callback functions in the callback array
-     */
-    public $nCallback = 0;
-
-    /**
-     * @var array Store label->id pairs for named destinations, these will be used to replace internal links
-     * done this way so that destinations can be defined after the location that links to them
-     */
-    public $destinations = [];
-
-    /**
-     * @var array Store the stack for the transaction commands, each item in here is a record of the values of all the
-     * publiciables within the class, so that the user can rollback at will (from each 'start' command)
-     * note that this includes the objects array, so these can be large.
-     */
-    public $checkpoint = '';
-
-    /**
-     * @var array Table of Image origin filenames and image labels which were already added with o_image().
-     * Allows to merge identical images
-     */
-    public $imagelist = [];
-
-    /**
-     * @var array Table of already added alpha and plain image files for transparent PNG images.
-     */
-    protected $imageAlphaList = [];
-
-    /**
-     * @var array List of temporary image files to be deleted after processing.
-     */
-    protected $imageCache = [];
-
-    /**
-     * @var boolean Whether the text passed in should be treated as Unicode or just local character set.
-     */
-    public $isUnicode = false;
-
-    /**
-     * @var string the JavaScript code of the document
-     */
-    public $javascript = '';
-
-    /**
-     * @var boolean whether the compression is possible
-     */
-    protected $compressionReady = false;
-
-    /**
-     * @var array Current page size
-     */
-    protected $currentPageSize = ["width" => 0, "height" => 0];
-
-    /**
-     * @var array All the chars that will be required in the font subsets
-     */
-    protected $stringSubsets = [];
-
-    /**
-     * @var string The target internal encoding
-     */
-    protected static $targetEncoding = 'Windows-1252';
-
-    /**
-     * @var array
-     */
-    protected $byteRange = array();
-
-    /**
-     * @var array The list of the core fonts
-     */
-    protected static $coreFonts = [
-        'courier',
-        'courier-bold',
-        'courier-oblique',
-        'courier-boldoblique',
-        'helvetica',
-        'helvetica-bold',
-        'helvetica-oblique',
-        'helvetica-boldoblique',
-        'times-roman',
-        'times-bold',
-        'times-italic',
-        'times-bolditalic',
-        'symbol',
-        'zapfdingbats'
-    ];
-
-    /**
-     * Class constructor
-     * This will start a new document
-     *
-     * @param array   $pageSize  Array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
-     * @param boolean $isUnicode Whether text will be treated as Unicode or not.
-     * @param string  $fontcache The font cache folder
-     * @param string  $tmp       The temporary folder
-     */
-    function __construct($pageSize = [0, 0, 612, 792], $isUnicode = false, $fontcache = '', $tmp = '')
-    {
-        $this->isUnicode = $isUnicode;
-        $this->fontcache = rtrim($fontcache, DIRECTORY_SEPARATOR."/\\");
-        $this->tmp = ($tmp !== '' ? $tmp : sys_get_temp_dir());
-        $this->newDocument($pageSize);
-
-        $this->compressionReady = function_exists('gzcompress');
-
-        if (in_array('Windows-1252', mb_list_encodings())) {
-            self::$targetEncoding = 'Windows-1252';
-        }
-
-        // also initialize the font families that are known about already
-        $this->setFontFamily('init');
-    }
-
-    public function __destruct()
-    {
-        foreach ($this->imageCache as $file) {
-            if (file_exists($file)) {
-                unlink($file);
-            }
-        }
-    }
-
-    /**
-     * Document object methods (internal use only)
-     *
-     * There is about one object method for each type of object in the pdf document
-     * Each function has the same call list ($id,$action,$options).
-     * $id = the object ID of the object, or what it is to be if it is being created
-     * $action = a string specifying the action to be performed, though ALL must support:
-     *           'new' - create the object with the id $id
-     *           'out' - produce the output for the pdf object
-     * $options = optional, a string or array containing the various parameters for the object
-     *
-     * These, in conjunction with the output function are the ONLY way for output to be produced
-     * within the pdf 'file'.
-     */
-
-    /**
-     * Destination object, used to specify the location for the user to jump to, presently on opening
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_destination($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'destination', 'info' => []];
-                $tmp = '';
-                switch ($options['type']) {
-                    case 'XYZ':
-                    /** @noinspection PhpMissingBreakStatementInspection */
-                    case 'FitR':
-                        $tmp = ' ' . $options['p3'] . $tmp;
-                    case 'FitH':
-                    case 'FitV':
-                    case 'FitBH':
-                    /** @noinspection PhpMissingBreakStatementInspection */
-                    case 'FitBV':
-                        $tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
-                    case 'Fit':
-                    case 'FitB':
-                        $tmp = $options['type'] . $tmp;
-                        $this->objects[$id]['info']['string'] = $tmp;
-                        $this->objects[$id]['info']['page'] = $options['page'];
-                }
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-
-                $tmp = $o['info'];
-                $res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * set the viewer preferences
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return string|null
-     */
-    protected function o_viewerPreferences($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'viewerPreferences', 'info' => []];
-                break;
-
-            case 'add':
-                $o = &$this->objects[$id];
-
-                foreach ($options as $k => $v) {
-                    switch ($k) {
-                        // Boolean keys
-                        case 'HideToolbar':
-                        case 'HideMenubar':
-                        case 'HideWindowUI':
-                        case 'FitWindow':
-                        case 'CenterWindow':
-                        case 'DisplayDocTitle':
-                        case 'PickTrayByPDFSize':
-                            $o['info'][$k] = (bool)$v;
-                            break;
-
-                        // Integer keys
-                        case 'NumCopies':
-                            $o['info'][$k] = (int)$v;
-                            break;
-
-                        // Name keys
-                        case 'ViewArea':
-                        case 'ViewClip':
-                        case 'PrintClip':
-                        case 'PrintArea':
-                            $o['info'][$k] = (string)$v;
-                            break;
-
-                        // Named with limited valid values
-                        case 'NonFullScreenPageMode':
-                            if (!in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        case 'Direction':
-                            if (!in_array($v, ['L2R', 'R2L'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        case 'PrintScaling':
-                            if (!in_array($v, ['None', 'AppDefault'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        case 'Duplex':
-                            if (!in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        // Integer array
-                        case 'PrintPageRange':
-                            // Cast to integer array
-                            foreach ($v as $vK => $vV) {
-                                $v[$vK] = (int)$vV;
-                            }
-                            $o['info'][$k] = array_values($v);
-                            break;
-                    }
-                }
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< ";
-
-                foreach ($o['info'] as $k => $v) {
-                    if (is_string($v)) {
-                        $v = '/' . $v;
-                    } elseif (is_int($v)) {
-                        $v = (string) $v;
-                    } elseif (is_bool($v)) {
-                        $v = ($v ? 'true' : 'false');
-                    } elseif (is_array($v)) {
-                        $v = '[' . implode(' ', $v) . ']';
-                    }
-                    $res .= "\n/$k $v";
-                }
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * define the document catalog, the overall controller for the document
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return string|null
-     */
-    protected function o_catalog($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'catalog', 'info' => []];
-                $this->catalogId = $id;
-                break;
-
-            case 'acroform':
-            case 'outlines':
-            case 'pages':
-            case 'openHere':
-            case 'names':
-                $o['info'][$action] = $options;
-                break;
-
-            case 'viewerPreferences':
-                if (!isset($o['info']['viewerPreferences'])) {
-                    $this->numObj++;
-                    $this->o_viewerPreferences($this->numObj, 'new');
-                    $o['info']['viewerPreferences'] = $this->numObj;
-                }
-
-                $vp = $o['info']['viewerPreferences'];
-                $this->o_viewerPreferences($vp, 'add', $options);
-
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Catalog";
-
-                foreach ($o['info'] as $k => $v) {
-                    switch ($k) {
-                        case 'outlines':
-                            $res .= "\n/Outlines $v 0 R";
-                            break;
-
-                        case 'pages':
-                            $res .= "\n/Pages $v 0 R";
-                            break;
-
-                        case 'viewerPreferences':
-                            $res .= "\n/ViewerPreferences $v 0 R";
-                            break;
-
-                        case 'openHere':
-                            $res .= "\n/OpenAction $v 0 R";
-                            break;
-
-                        case 'names':
-                            $res .= "\n/Names $v 0 R";
-                            break;
-
-                        case 'acroform':
-                            $res .= "\n/AcroForm $v 0 R";
-                            break;
-                    }
-                }
-
-                $res .= " >>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * object which is a parent to the pages in the document
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_pages($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'pages', 'info' => []];
-                $this->o_catalog($this->catalogId, 'pages', $id);
-                break;
-
-            case 'page':
-                if (!is_array($options)) {
-                    // then it will just be the id of the new page
-                    $o['info']['pages'][] = $options;
-                } else {
-                    // then it should be an array having 'id','rid','pos', where rid=the page to which this one will be placed relative
-                    // and pos is either 'before' or 'after', saying where this page will fit.
-                    if (isset($options['id']) && isset($options['rid']) && isset($options['pos'])) {
-                        $i = array_search($options['rid'], $o['info']['pages']);
-                        if (isset($o['info']['pages'][$i]) && $o['info']['pages'][$i] == $options['rid']) {
-
-                            // then there is a match
-                            // make a space
-                            switch ($options['pos']) {
-                                case 'before':
-                                    $k = $i;
-                                    break;
-
-                                case 'after':
-                                    $k = $i + 1;
-                                    break;
-
-                                default:
-                                    $k = -1;
-                                    break;
-                            }
-
-                            if ($k >= 0) {
-                                for ($j = count($o['info']['pages']) - 1; $j >= $k; $j--) {
-                                    $o['info']['pages'][$j + 1] = $o['info']['pages'][$j];
-                                }
-
-                                $o['info']['pages'][$k] = $options['id'];
-                            }
-                        }
-                    }
-                }
-                break;
-
-            case 'procset':
-                $o['info']['procset'] = $options;
-                break;
-
-            case 'mediaBox':
-                $o['info']['mediaBox'] = $options;
-                // which should be an array of 4 numbers
-                $this->currentPageSize = ['width' => $options[2], 'height' => $options[3]];
-                break;
-
-            case 'font':
-                $o['info']['fonts'][] = ['objNum' => $options['objNum'], 'fontNum' => $options['fontNum']];
-                break;
-
-            case 'extGState':
-                $o['info']['extGStates'][] = ['objNum' => $options['objNum'], 'stateNum' => $options['stateNum']];
-                break;
-
-            case 'xObject':
-                $o['info']['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
-                break;
-
-            case 'out':
-                if (count($o['info']['pages'])) {
-                    $res = "\n$id 0 obj\n<< /Type /Pages\n/Kids [";
-                    foreach ($o['info']['pages'] as $v) {
-                        $res .= "$v 0 R\n";
-                    }
-
-                    $res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
-
-                    if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
-                        isset($o['info']['procset']) ||
-                        (isset($o['info']['extGStates']) && count($o['info']['extGStates']))
-                    ) {
-                        $res .= "\n/Resources <<";
-
-                        if (isset($o['info']['procset'])) {
-                            $res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
-                        }
-
-                        if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
-                            $res .= "\n/Font << ";
-                            foreach ($o['info']['fonts'] as $finfo) {
-                                $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
-                            }
-                            $res .= "\n>>";
-                        }
-
-                        if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
-                            $res .= "\n/XObject << ";
-                            foreach ($o['info']['xObjects'] as $finfo) {
-                                $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
-                            }
-                            $res .= "\n>>";
-                        }
-
-                        if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
-                            $res .= "\n/ExtGState << ";
-                            foreach ($o['info']['extGStates'] as $gstate) {
-                                $res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
-                            }
-                            $res .= "\n>>";
-                        }
-
-                        $res .= "\n>>";
-                        if (isset($o['info']['mediaBox'])) {
-                            $tmp = $o['info']['mediaBox'];
-                            $res .= "\n/MediaBox [" . sprintf(
-                                    '%.3F %.3F %.3F %.3F',
-                                    $tmp[0],
-                                    $tmp[1],
-                                    $tmp[2],
-                                    $tmp[3]
-                                ) . ']';
-                        }
-                    }
-
-                    $res .= "\n >>\nendobj";
-                } else {
-                    $res = "\n$id 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
-                }
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * define the outlines in the doc, empty for now
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_outlines($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'outlines', 'info' => ['outlines' => []]];
-                $this->o_catalog($this->catalogId, 'outlines', $id);
-                break;
-
-            case 'outline':
-                $o['info']['outlines'][] = $options;
-                break;
-
-            case 'out':
-                if (count($o['info']['outlines'])) {
-                    $res = "\n$id 0 obj\n<< /Type /Outlines /Kids [";
-                    foreach ($o['info']['outlines'] as $v) {
-                        $res .= "$v 0 R ";
-                    }
-
-                    $res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
-                } else {
-                    $res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
-                }
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an object to hold the font description
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return string|null
-     * @throws FontNotFoundException
-     */
-    protected function o_font($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'font',
-                    'info' => [
-                        'name'         => $options['name'],
-                        'fontFileName' => $options['fontFileName'],
-                        'SubType'      => 'Type1',
-                        'isSubsetting'   => $options['isSubsetting']
-                    ]
-                ];
-                $fontNum = $this->numFonts;
-                $this->objects[$id]['info']['fontNum'] = $fontNum;
-
-                // deal with the encoding and the differences
-                if (isset($options['differences'])) {
-                    // then we'll need an encoding dictionary
-                    $this->numObj++;
-                    $this->o_fontEncoding($this->numObj, 'new', $options);
-                    $this->objects[$id]['info']['encodingDictionary'] = $this->numObj;
-                } else {
-                    if (isset($options['encoding'])) {
-                        // we can specify encoding here
-                        switch ($options['encoding']) {
-                            case 'WinAnsiEncoding':
-                            case 'MacRomanEncoding':
-                            case 'MacExpertEncoding':
-                                $this->objects[$id]['info']['encoding'] = $options['encoding'];
-                                break;
-
-                            case 'none':
-                                break;
-
-                            default:
-                                $this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
-                                break;
-                        }
-                    } else {
-                        $this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
-                    }
-                }
-
-                if ($this->fonts[$options['fontFileName']]['isUnicode']) {
-                    // For Unicode fonts, we need to incorporate font data into
-                    // sub-sections that are linked from the primary font section.
-                    // Look at o_fontGIDtoCID and o_fontDescendentCID functions
-                    // for more information.
-                    //
-                    // All of this code is adapted from the excellent changes made to
-                    // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
-
-                    $toUnicodeId = ++$this->numObj;
-                    $this->o_toUnicode($toUnicodeId, 'new');
-                    $this->objects[$id]['info']['toUnicode'] = $toUnicodeId;
-
-                    $cidFontId = ++$this->numObj;
-                    $this->o_fontDescendentCID($cidFontId, 'new', $options);
-                    $this->objects[$id]['info']['cidFont'] = $cidFontId;
-                }
-
-                // also tell the pages node about the new font
-                $this->o_pages($this->currentNode, 'font', ['fontNum' => $fontNum, 'objNum' => $id]);
-                break;
-
-            case 'add':
-                $font_options = $this->processFont($id, $o['info']);
-
-                if ($font_options !== false) {
-                    foreach ($font_options as $k => $v) {
-                        switch ($k) {
-                            case 'BaseFont':
-                                $o['info']['name'] = $v;
-                                break;
-                            case 'FirstChar':
-                            case 'LastChar':
-                            case 'Widths':
-                            case 'FontDescriptor':
-                            case 'SubType':
-                                $this->addMessage('o_font ' . $k . " : " . $v);
-                                $o['info'][$k] = $v;
-                                break;
-                        }
-                    }
-
-                    // pass values down to descendent font
-                    if (isset($o['info']['cidFont'])) {
-                        $this->o_fontDescendentCID($o['info']['cidFont'], 'add', $font_options);
-                    }
-                }
-                break;
-
-            case 'out':
-                if ($this->fonts[$this->objects[$id]['info']['fontFileName']]['isUnicode']) {
-                    // For Unicode fonts, we need to incorporate font data into
-                    // sub-sections that are linked from the primary font section.
-                    // Look at o_fontGIDtoCID and o_fontDescendentCID functions
-                    // for more information.
-                    //
-                    // All of this code is adapted from the excellent changes made to
-                    // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
-
-                    $res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-
-                    // The horizontal identity mapping for 2-byte CIDs; may be used
-                    // with CIDFonts using any Registry, Ordering, and Supplement values.
-                    $res .= "/Encoding /Identity-H\n";
-                    $res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
-                    $res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
-                    $res .= ">>\n";
-                    $res .= "endobj";
-                } else {
-                    $res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
-                    $res .= "/Name /F" . $o['info']['fontNum'] . "\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-
-                    if (isset($o['info']['encodingDictionary'])) {
-                        // then place a reference to the dictionary
-                        $res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
-                    } else {
-                        if (isset($o['info']['encoding'])) {
-                            // use the specified encoding
-                            $res .= "/Encoding /" . $o['info']['encoding'] . "\n";
-                        }
-                    }
-
-                    if (isset($o['info']['FirstChar'])) {
-                        $res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
-                    }
-
-                    if (isset($o['info']['LastChar'])) {
-                        $res .= "/LastChar " . $o['info']['LastChar'] . "\n";
-                    }
-
-                    if (isset($o['info']['Widths'])) {
-                        $res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
-                    }
-
-                    if (isset($o['info']['FontDescriptor'])) {
-                        $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
-                    }
-
-                    $res .= ">>\n";
-                    $res .= "endobj";
-                }
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function getFontSubsettingTag(array $font): string
-    {
-        // convert font num to hexavigesimal numeral system letters A - Z only
-        $base_26 = strtoupper(base_convert($font['fontNum'], 10, 26));
-        for ($i = 0; $i < strlen($base_26); $i++) {
-            $char = $base_26[$i];
-            if ($char <= "9") {
-                $base_26[$i] = chr(65 + intval($char));
-            } else {
-                $base_26[$i] = chr(ord($char) + 10);
-            }
-        }
-
-        return 'SUB' . str_pad($base_26, 3 , 'A', STR_PAD_LEFT);
-    }
-
-    /**
-     * @param int $fontObjId
-     * @param array $object_info
-     * @return array|false
-     * @throws FontNotFoundException
-     */
-    private function processFont(int $fontObjId, array $object_info)
-    {
-        $fontFileName = $object_info['fontFileName'];
-        if (!isset($this->fonts[$fontFileName])) {
-            return false;
-        }
-
-        $font = &$this->fonts[$fontFileName];
-
-        $fileSuffix = $font['fileSuffix'];
-        $fileSuffixLower = strtolower($font['fileSuffix']);
-        $fbfile = "$fontFileName.$fileSuffix";
-        $isTtfFont = $fileSuffixLower === 'ttf';
-        $isPfbFont = $fileSuffixLower === 'pfb';
-
-        $this->addMessage('selectFont: checking for - ' . $fbfile);
-
-        if (!$fileSuffix) {
-            $this->addMessage(
-                'selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts'
-            );
-
-            return false;
-        } else {
-            $adobeFontName = isset($font['PostScriptName']) ? $font['PostScriptName'] : $font['FontName'];
-            //        $fontObj = $this->numObj;
-            $this->addMessage("selectFont: adding font file - $fbfile - $adobeFontName");
-
-            // find the array of font widths, and put that into an object.
-            $firstChar = -1;
-            $lastChar = 0;
-            $widths = [];
-            $cid_widths = [];
-
-            foreach ($font['C'] as $num => $d) {
-                if (intval($num) > 0 || $num == '0') {
-                    if (!$font['isUnicode']) {
-                        // With Unicode, widths array isn't used
-                        if ($lastChar > 0 && $num > $lastChar + 1) {
-                            for ($i = $lastChar + 1; $i < $num; $i++) {
-                                $widths[] = 0;
-                            }
-                        }
-                    }
-
-                    $widths[] = $d;
-
-                    if ($font['isUnicode']) {
-                        $cid_widths[$num] = $d;
-                    }
-
-                    if ($firstChar == -1) {
-                        $firstChar = $num;
-                    }
-
-                    $lastChar = $num;
-                }
-            }
-
-            // also need to adjust the widths for the differences array
-            if (isset($object['differences'])) {
-                foreach ($object['differences'] as $charNum => $charName) {
-                    if ($charNum > $lastChar) {
-                        if (!$object['isUnicode']) {
-                            // With Unicode, widths array isn't used
-                            for ($i = $lastChar + 1; $i <= $charNum; $i++) {
-                                $widths[] = 0;
-                            }
-                        }
-
-                        $lastChar = $charNum;
-                    }
-
-                    if (isset($font['C'][$charName])) {
-                        $widths[$charNum - $firstChar] = $font['C'][$charName];
-                        if ($font['isUnicode']) {
-                            $cid_widths[$charName] = $font['C'][$charName];
-                        }
-                    }
-                }
-            }
-
-            if ($font['isUnicode']) {
-                $font['CIDWidths'] = $cid_widths;
-            }
-
-            $this->addMessage('selectFont: FirstChar = ' . $firstChar);
-            $this->addMessage('selectFont: LastChar = ' . $lastChar);
-
-            $widthid = -1;
-
-            if (!$font['isUnicode']) {
-                // With Unicode, widths array isn't used
-
-                $this->numObj++;
-                $this->o_contents($this->numObj, 'new', 'raw');
-                $this->objects[$this->numObj]['c'] .= '[' . implode(' ', $widths) . ']';
-                $widthid = $this->numObj;
-            }
-
-            $missing_width = 500;
-            $stemV = 70;
-
-            if (isset($font['MissingWidth'])) {
-                $missing_width = $font['MissingWidth'];
-            }
-            if (isset($font['StdVW'])) {
-                $stemV = $font['StdVW'];
-            } else {
-                if (isset($font['Weight']) && preg_match('!(bold|black)!i', $font['Weight'])) {
-                    $stemV = 120;
-                }
-            }
-
-            // load the pfb file, and put that into an object too.
-            // note that pdf supports only binary format type 1 font files, though there is a
-            // simple utility to convert them from pfa to pfb.
-            $data = file_get_contents($fbfile);
-
-            // create the font descriptor
-            $this->numObj++;
-            $fontDescriptorId = $this->numObj;
-
-            $this->numObj++;
-            $pfbid = $this->numObj;
-
-            // determine flags (more than a little flakey, hopefully will not matter much)
-            $flags = 0;
-
-            if ($font['ItalicAngle'] != 0) {
-                $flags += pow(2, 6);
-            }
-
-            if ($font['IsFixedPitch'] === 'true') {
-                $flags += 1;
-            }
-
-            $flags += pow(2, 5); // assume non-sybolic
-            $list = [
-                'Ascent'       => 'Ascender',
-                'CapHeight'    => 'Ascender', //FIXME: php-font-lib is not grabbing this value, so we'll fake it and use the Ascender value // 'CapHeight'
-                'MissingWidth' => 'MissingWidth',
-                'Descent'      => 'Descender',
-                'FontBBox'     => 'FontBBox',
-                'ItalicAngle'  => 'ItalicAngle'
-            ];
-            $fdopt = [
-                'Flags'    => $flags,
-                'FontName' => $adobeFontName,
-                'StemV'    => $stemV
-            ];
-
-            foreach ($list as $k => $v) {
-                if (isset($font[$v])) {
-                    $fdopt[$k] = $font[$v];
-                }
-            }
-
-            if ($isPfbFont) {
-                $fdopt['FontFile'] = $pfbid;
-            } elseif ($isTtfFont) {
-                $fdopt['FontFile2'] = $pfbid;
-            }
-
-            $this->o_fontDescriptor($fontDescriptorId, 'new', $fdopt);
-
-            // embed the font program
-            $this->o_contents($this->numObj, 'new');
-            $this->objects[$pfbid]['c'] .= $data;
-
-            // determine the cruicial lengths within this file
-            if ($isPfbFont) {
-                $l1 = strpos($data, 'eexec') + 6;
-                $l2 = strpos($data, '00000000') - $l1;
-                $l3 = mb_strlen($data, '8bit') - $l2 - $l1;
-                $this->o_contents(
-                    $this->numObj,
-                    'add',
-                    ['Length1' => $l1, 'Length2' => $l2, 'Length3' => $l3]
-                );
-            } elseif ($isTtfFont) {
-                $l1 = mb_strlen($data, '8bit');
-                $this->o_contents($this->numObj, 'add', ['Length1' => $l1]);
-            }
-
-            // tell the font object about all this new stuff
-            $options = [
-                'BaseFont'       => $adobeFontName,
-                'MissingWidth'   => $missing_width,
-                'Widths'         => $widthid,
-                'FirstChar'      => $firstChar,
-                'LastChar'       => $lastChar,
-                'FontDescriptor' => $fontDescriptorId
-            ];
-
-            if ($isTtfFont) {
-                $options['SubType'] = 'TrueType';
-            }
-
-            $this->addMessage("adding extra info to font.($fontObjId)");
-
-            foreach ($options as $fk => $fv) {
-                $this->addMessage("$fk : $fv");
-            }
-        }
-
-        return $options;
-    }
-
-    /**
-     * A toUnicode section, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @return null|string
-     */
-    protected function o_toUnicode($id, $action)
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'toUnicode'
-                ];
-                break;
-            case 'add':
-                break;
-            case 'out':
-                $ordering = 'UCS';
-                $registry = 'Adobe';
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $ordering = $this->ARC4($ordering);
-                    $registry = $this->filterText($this->ARC4($registry), false, false);
-                }
-
-                $stream = <<<EOT
+	const PDF_VERSION = '1.7';
+
+	const ACROFORM_SIG_SIGNATURESEXISTS = 0x0001;
+	const ACROFORM_SIG_APPENDONLY =       0x0002;
+
+	const ACROFORM_FIELD_BUTTON =   'Btn';
+	const ACROFORM_FIELD_TEXT =     'Tx';
+	const ACROFORM_FIELD_CHOICE =   'Ch';
+	const ACROFORM_FIELD_SIG =      'Sig';
+
+	const ACROFORM_FIELD_READONLY =               0x0001;
+	const ACROFORM_FIELD_REQUIRED =               0x0002;
+
+	const ACROFORM_FIELD_TEXT_MULTILINE =         0x1000;
+	const ACROFORM_FIELD_TEXT_PASSWORD =          0x2000;
+	const ACROFORM_FIELD_TEXT_RICHTEXT =         0x10000;
+
+	const ACROFORM_FIELD_CHOICE_COMBO =          0x20000;
+	const ACROFORM_FIELD_CHOICE_EDIT =           0x40000;
+	const ACROFORM_FIELD_CHOICE_SORT =           0x80000;
+	const ACROFORM_FIELD_CHOICE_MULTISELECT =   0x200000;
+
+	const XOBJECT_SUBTYPE_FORM = 'Form';
+
+	/**
+	 * @var integer The current number of pdf objects in the document
+	 */
+	public $numObj = 0;
+
+	/**
+	 * @var array This array contains all of the pdf objects, ready for final assembly
+	 */
+	public $objects = [];
+
+	/**
+	 * @var integer The objectId (number within the objects array) of the document catalog
+	 */
+	public $catalogId;
+
+	/**
+	 * @var integer The objectId (number within the objects array) of indirect references (Javascript EmbeddedFiles)
+	 */
+	protected $indirectReferenceId = 0;
+
+	/**
+	 * @var integer The objectId (number within the objects array)
+	 */
+	protected $embeddedFilesId = 0;
+
+	/**
+	 * AcroForm objectId
+	 *
+	 * @var integer
+	 */
+	public $acroFormId;
+
+	/**
+	 * @var int
+	 */
+	public $signatureMaxLen = 5000;
+
+	/**
+	 * @var array Array carrying information about the fonts that the system currently knows about
+	 * Used to ensure that a font is not loaded twice, among other things
+	 */
+	public $fonts = [];
+
+	/**
+	 * @var string The default font metrics file to use if no other font has been loaded.
+	 * The path to the directory containing the font metrics should be included
+	 */
+	public $defaultFont = './fonts/Helvetica.afm';
+
+	/**
+	 * @string A record of the current font
+	 */
+	public $currentFont = '';
+
+	/**
+	 * @var string The current base font
+	 */
+	public $currentBaseFont = '';
+
+	/**
+	 * @var integer The number of the current font within the font array
+	 */
+	public $currentFontNum = 0;
+
+	/**
+	 * @var integer
+	 */
+	public $currentNode;
+
+	/**
+	 * @var integer Object number of the current page
+	 */
+	public $currentPage;
+
+	/**
+	 * @var integer Object number of the currently active contents block
+	 */
+	public $currentContents;
+
+	/**
+	 * @var integer Number of fonts within the system
+	 */
+	public $numFonts = 0;
+
+	/**
+	 * @var integer Number of graphic state resources used
+	 */
+	private $numStates = 0;
+
+	/**
+	 * @var array Number of graphic state resources used
+	 */
+	private $gstates = [];
+
+	/**
+	 * @var array Current color for fill operations, defaults to inactive value,
+	 * all three components should be between 0 and 1 inclusive when active
+	 */
+	public $currentColor = null;
+
+	/**
+	 * @var array Current color for stroke operations (lines etc.)
+	 */
+	public $currentStrokeColor = null;
+
+	/**
+	 * @var string Fill rule (nonzero or evenodd)
+	 */
+	public $fillRule = "nonzero";
+
+	/**
+	 * @var string Current style that lines are drawn in
+	 */
+	public $currentLineStyle = '';
+
+	/**
+	 * @var array Current line transparency (partial graphics state)
+	 */
+	public $currentLineTransparency = ["mode" => "Normal", "opacity" => 1.0];
+
+	/**
+	 * array Current fill transparency (partial graphics state)
+	 */
+	public $currentFillTransparency = ["mode" => "Normal", "opacity" => 1.0];
+
+	/**
+	 * @var array An array which is used to save the state of the document, mainly the colors and styles
+	 * it is used to temporarily change to another state, then change back to what it was before
+	 */
+	public $stateStack = [];
+
+	/**
+	 * @var integer Number of elements within the state stack
+	 */
+	public $nStateStack = 0;
+
+	/**
+	 * @var integer Number of page objects within the document
+	 */
+	public $numPages = 0;
+
+	/**
+	 * @var array Object Id storage stack
+	 */
+	public $stack = [];
+
+	/**
+	 * @var integer Number of elements within the object Id storage stack
+	 */
+	public $nStack = 0;
+
+	/**
+	 * an array which contains information about the objects which are not firmly attached to pages
+	 * these have been added with the addObject function
+	 */
+	public $looseObjects = [];
+
+	/**
+	 * array contains information about how the loose objects are to be added to the document
+	 */
+	public $addLooseObjects = [];
+
+	/**
+	 * @var integer The objectId of the information object for the document
+	 * this contains authorship, title etc.
+	 */
+	public $infoObject = 0;
+
+	/**
+	 * @var integer Number of images being tracked within the document
+	 */
+	public $numImages = 0;
+
+	/**
+	 * @var array An array containing options about the document
+	 * it defaults to turning on the compression of the objects
+	 */
+	public $options = ['compression' => true];
+
+	/**
+	 * @var integer The objectId of the first page of the document
+	 */
+	public $firstPageId;
+
+	/**
+	 * @var integer The object Id of the procset object
+	 */
+	public $procsetObjectId;
+
+	/**
+	 * @var array Store the information about the relationship between font families
+	 * this used so that the code knows which font is the bold version of another font, etc.
+	 * the value of this array is initialised in the constructor function.
+	 */
+	public $fontFamilies = [];
+
+	/**
+	 * @var string Folder for php serialized formats of font metrics files.
+	 * If empty string, use same folder as original metrics files.
+	 * This can be passed in from class creator.
+	 * If this folder does not exist or is not writable, Cpdf will be **much** slower.
+	 * Because of potential trouble with php safe mode, folder cannot be created at runtime.
+	 */
+	public $fontcache = '';
+
+	/**
+	 * @var integer The version of the font metrics cache file.
+	 * This value must be manually incremented whenever the internal font data structure is modified.
+	 */
+	public $fontcacheVersion = 6;
+
+	/**
+	 * @var string Temporary folder.
+	 * If empty string, will attempt system tmp folder.
+	 * This can be passed in from class creator.
+	 */
+	public $tmp = '';
+
+	/**
+	 * @var string Track if the current font is bolded or italicised
+	 */
+	public $currentTextState = '';
+
+	/**
+	 * @var string Messages are stored here during processing, these can be selected afterwards to give some useful debug information
+	 */
+	public $messages = '';
+
+	/**
+	 * @var string The encryption array for the document encryption is stored here
+	 */
+	public $arc4 = '';
+
+	/**
+	 * @var integer The object Id of the encryption information
+	 */
+	public $arc4_objnum = 0;
+
+	/**
+	 * @var string The file identifier, used to uniquely identify a pdf document
+	 */
+	public $fileIdentifier = '';
+
+	/**
+	 * @var boolean A flag to say if a document is to be encrypted or not
+	 */
+	public $encrypted = false;
+
+	/**
+	 * @var string The encryption key for the encryption of all the document content (structure is not encrypted)
+	 */
+	public $encryptionKey = '';
+
+	/**
+	 * @var array Array which forms a stack to keep track of nested callback functions
+	 */
+	public $callback = [];
+
+	/**
+	 * @var integer The number of callback functions in the callback array
+	 */
+	public $nCallback = 0;
+
+	/**
+	 * @var array Store label->id pairs for named destinations, these will be used to replace internal links
+	 * done this way so that destinations can be defined after the location that links to them
+	 */
+	public $destinations = [];
+
+	/**
+	 * @var array Store the stack for the transaction commands, each item in here is a record of the values of all the
+	 * publiciables within the class, so that the user can rollback at will (from each 'start' command)
+	 * note that this includes the objects array, so these can be large.
+	 */
+	public $checkpoint = '';
+
+	/**
+	 * @var array Table of Image origin filenames and image labels which were already added with o_image().
+	 * Allows to merge identical images
+	 */
+	public $imagelist = [];
+
+	/**
+	 * @var array Table of already added alpha and plain image files for transparent PNG images.
+	 */
+	protected $imageAlphaList = [];
+
+	/**
+	 * @var array List of temporary image files to be deleted after processing.
+	 */
+	protected $imageCache = [];
+
+	/**
+	 * @var boolean Whether the text passed in should be treated as Unicode or just local character set.
+	 */
+	public $isUnicode = false;
+
+	/**
+	 * @var string the JavaScript code of the document
+	 */
+	public $javascript = '';
+
+	/**
+	 * @var boolean whether the compression is possible
+	 */
+	protected $compressionReady = false;
+
+	/**
+	 * @var array Current page size
+	 */
+	protected $currentPageSize = ["width" => 0, "height" => 0];
+
+	/**
+	 * @var array All the chars that will be required in the font subsets
+	 */
+	protected $stringSubsets = [];
+
+	/**
+	 * @var string The target internal encoding
+	 */
+	protected static $targetEncoding = 'Windows-1252';
+
+	/**
+	 * @var array
+	 */
+	protected $byteRange = array();
+
+	/**
+	 * @var array The list of the core fonts
+	 */
+	protected static $coreFonts = [
+		'courier',
+		'courier-bold',
+		'courier-oblique',
+		'courier-boldoblique',
+		'helvetica',
+		'helvetica-bold',
+		'helvetica-oblique',
+		'helvetica-boldoblique',
+		'times-roman',
+		'times-bold',
+		'times-italic',
+		'times-bolditalic',
+		'symbol',
+		'zapfdingbats'
+	];
+
+	/**
+	 * Class constructor
+	 * This will start a new document
+	 *
+	 * @param array   $pageSize  Array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
+	 * @param boolean $isUnicode Whether text will be treated as Unicode or not.
+	 * @param string  $fontcache The font cache folder
+	 * @param string  $tmp       The temporary folder
+	 */
+	function __construct($pageSize = [0, 0, 612, 792], $isUnicode = false, $fontcache = '', $tmp = '')
+	{
+		$this->isUnicode = $isUnicode;
+		$this->fontcache = rtrim($fontcache, DIRECTORY_SEPARATOR."/\\");
+		$this->tmp = ($tmp !== '' ? $tmp : sys_get_temp_dir());
+		$this->newDocument($pageSize);
+
+		$this->compressionReady = function_exists('gzcompress');
+
+		if (in_array('Windows-1252', mb_list_encodings())) {
+			self::$targetEncoding = 'Windows-1252';
+		}
+
+		// also initialize the font families that are known about already
+		$this->setFontFamily('init');
+	}
+
+	public function __destruct()
+	{
+		foreach ($this->imageCache as $file) {
+			if (file_exists($file)) {
+				unlink($file);
+			}
+		}
+	}
+
+	/**
+	 * Document object methods (internal use only)
+	 *
+	 * There is about one object method for each type of object in the pdf document
+	 * Each function has the same call list ($id,$action,$options).
+	 * $id = the object ID of the object, or what it is to be if it is being created
+	 * $action = a string specifying the action to be performed, though ALL must support:
+	 *           'new' - create the object with the id $id
+	 *           'out' - produce the output for the pdf object
+	 * $options = optional, a string or array containing the various parameters for the object
+	 *
+	 * These, in conjunction with the output function are the ONLY way for output to be produced
+	 * within the pdf 'file'.
+	 */
+
+	/**
+	 * Destination object, used to specify the location for the user to jump to, presently on opening
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_destination($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'destination', 'info' => []];
+				$tmp = '';
+				switch ($options['type']) {
+					case 'XYZ':
+					/** @noinspection PhpMissingBreakStatementInspection */
+					case 'FitR':
+						$tmp = ' ' . $options['p3'] . $tmp;
+					case 'FitH':
+					case 'FitV':
+					case 'FitBH':
+					/** @noinspection PhpMissingBreakStatementInspection */
+					case 'FitBV':
+						$tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
+					case 'Fit':
+					case 'FitB':
+						$tmp = $options['type'] . $tmp;
+						$this->objects[$id]['info']['string'] = $tmp;
+						$this->objects[$id]['info']['page'] = $options['page'];
+				}
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+
+				$tmp = $o['info'];
+				$res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * set the viewer preferences
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return string|null
+	 */
+	protected function o_viewerPreferences($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'viewerPreferences', 'info' => []];
+				break;
+
+			case 'add':
+				$o = &$this->objects[$id];
+
+				foreach ($options as $k => $v) {
+					switch ($k) {
+						// Boolean keys
+						case 'HideToolbar':
+						case 'HideMenubar':
+						case 'HideWindowUI':
+						case 'FitWindow':
+						case 'CenterWindow':
+						case 'DisplayDocTitle':
+						case 'PickTrayByPDFSize':
+							$o['info'][$k] = (bool)$v;
+							break;
+
+						// Integer keys
+						case 'NumCopies':
+							$o['info'][$k] = (int)$v;
+							break;
+
+						// Name keys
+						case 'ViewArea':
+						case 'ViewClip':
+						case 'PrintClip':
+						case 'PrintArea':
+							$o['info'][$k] = (string)$v;
+							break;
+
+						// Named with limited valid values
+						case 'NonFullScreenPageMode':
+							if (!in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						case 'Direction':
+							if (!in_array($v, ['L2R', 'R2L'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						case 'PrintScaling':
+							if (!in_array($v, ['None', 'AppDefault'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						case 'Duplex':
+							if (!in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						// Integer array
+						case 'PrintPageRange':
+							// Cast to integer array
+							foreach ($v as $vK => $vV) {
+								$v[$vK] = (int)$vV;
+							}
+							$o['info'][$k] = array_values($v);
+							break;
+					}
+				}
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< ";
+
+				foreach ($o['info'] as $k => $v) {
+					if (is_string($v)) {
+						$v = '/' . $v;
+					} elseif (is_int($v)) {
+						$v = (string) $v;
+					} elseif (is_bool($v)) {
+						$v = ($v ? 'true' : 'false');
+					} elseif (is_array($v)) {
+						$v = '[' . implode(' ', $v) . ']';
+					}
+					$res .= "\n/$k $v";
+				}
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * define the document catalog, the overall controller for the document
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return string|null
+	 */
+	protected function o_catalog($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'catalog', 'info' => []];
+				$this->catalogId = $id;
+				break;
+
+			case 'acroform':
+			case 'outlines':
+			case 'pages':
+			case 'openHere':
+			case 'names':
+				$o['info'][$action] = $options;
+				break;
+
+			case 'viewerPreferences':
+				if (!isset($o['info']['viewerPreferences'])) {
+					$this->numObj++;
+					$this->o_viewerPreferences($this->numObj, 'new');
+					$o['info']['viewerPreferences'] = $this->numObj;
+				}
+
+				$vp = $o['info']['viewerPreferences'];
+				$this->o_viewerPreferences($vp, 'add', $options);
+
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Catalog";
+
+				foreach ($o['info'] as $k => $v) {
+					switch ($k) {
+						case 'outlines':
+							$res .= "\n/Outlines $v 0 R";
+							break;
+
+						case 'pages':
+							$res .= "\n/Pages $v 0 R";
+							break;
+
+						case 'viewerPreferences':
+							$res .= "\n/ViewerPreferences $v 0 R";
+							break;
+
+						case 'openHere':
+							$res .= "\n/OpenAction $v 0 R";
+							break;
+
+						case 'names':
+							$res .= "\n/Names $v 0 R";
+							break;
+
+						case 'acroform':
+							$res .= "\n/AcroForm $v 0 R";
+							break;
+					}
+				}
+
+				$res .= " >>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * object which is a parent to the pages in the document
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_pages($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'pages', 'info' => []];
+				$this->o_catalog($this->catalogId, 'pages', $id);
+				break;
+
+			case 'page':
+				if (!is_array($options)) {
+					// then it will just be the id of the new page
+					$o['info']['pages'][] = $options;
+				} else {
+					// then it should be an array having 'id','rid','pos', where rid=the page to which this one will be placed relative
+					// and pos is either 'before' or 'after', saying where this page will fit.
+					if (isset($options['id']) && isset($options['rid']) && isset($options['pos'])) {
+						$i = array_search($options['rid'], $o['info']['pages']);
+						if (isset($o['info']['pages'][$i]) && $o['info']['pages'][$i] == $options['rid']) {
+
+							// then there is a match
+							// make a space
+							switch ($options['pos']) {
+								case 'before':
+									$k = $i;
+									break;
+
+								case 'after':
+									$k = $i + 1;
+									break;
+
+								default:
+									$k = -1;
+									break;
+							}
+
+							if ($k >= 0) {
+								for ($j = count($o['info']['pages']) - 1; $j >= $k; $j--) {
+									$o['info']['pages'][$j + 1] = $o['info']['pages'][$j];
+								}
+
+								$o['info']['pages'][$k] = $options['id'];
+							}
+						}
+					}
+				}
+				break;
+
+			case 'procset':
+				$o['info']['procset'] = $options;
+				break;
+
+			case 'mediaBox':
+				$o['info']['mediaBox'] = $options;
+				// which should be an array of 4 numbers
+				$this->currentPageSize = ['width' => $options[2], 'height' => $options[3]];
+				break;
+
+			case 'font':
+				$o['info']['fonts'][] = ['objNum' => $options['objNum'], 'fontNum' => $options['fontNum']];
+				break;
+
+			case 'extGState':
+				$o['info']['extGStates'][] = ['objNum' => $options['objNum'], 'stateNum' => $options['stateNum']];
+				break;
+
+			case 'xObject':
+				$o['info']['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
+				break;
+
+			case 'out':
+				if (count($o['info']['pages'])) {
+					$res = "\n$id 0 obj\n<< /Type /Pages\n/Kids [";
+					foreach ($o['info']['pages'] as $v) {
+						$res .= "$v 0 R\n";
+					}
+
+					$res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
+
+					if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
+						isset($o['info']['procset']) ||
+						(isset($o['info']['extGStates']) && count($o['info']['extGStates']))
+					) {
+						$res .= "\n/Resources <<";
+
+						if (isset($o['info']['procset'])) {
+							$res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
+						}
+
+						if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
+							$res .= "\n/Font << ";
+							foreach ($o['info']['fonts'] as $finfo) {
+								$res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+							}
+							$res .= "\n>>";
+						}
+
+						if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
+							$res .= "\n/XObject << ";
+							foreach ($o['info']['xObjects'] as $finfo) {
+								$res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+							}
+							$res .= "\n>>";
+						}
+
+						if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
+							$res .= "\n/ExtGState << ";
+							foreach ($o['info']['extGStates'] as $gstate) {
+								$res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
+							}
+							$res .= "\n>>";
+						}
+
+						$res .= "\n>>";
+						if (isset($o['info']['mediaBox'])) {
+							$tmp = $o['info']['mediaBox'];
+							$res .= "\n/MediaBox [" . sprintf(
+									'%.3F %.3F %.3F %.3F',
+									$tmp[0],
+									$tmp[1],
+									$tmp[2],
+									$tmp[3]
+								) . ']';
+						}
+					}
+
+					$res .= "\n >>\nendobj";
+				} else {
+					$res = "\n$id 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
+				}
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * define the outlines in the doc, empty for now
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_outlines($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'outlines', 'info' => ['outlines' => []]];
+				$this->o_catalog($this->catalogId, 'outlines', $id);
+				break;
+
+			case 'outline':
+				$o['info']['outlines'][] = $options;
+				break;
+
+			case 'out':
+				if (count($o['info']['outlines'])) {
+					$res = "\n$id 0 obj\n<< /Type /Outlines /Kids [";
+					foreach ($o['info']['outlines'] as $v) {
+						$res .= "$v 0 R ";
+					}
+
+					$res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
+				} else {
+					$res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
+				}
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an object to hold the font description
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return string|null
+	 * @throws FontNotFoundException
+	 */
+	protected function o_font($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'font',
+					'info' => [
+						'name'         => $options['name'],
+						'fontFileName' => $options['fontFileName'],
+						'SubType'      => 'Type1',
+						'isSubsetting'   => $options['isSubsetting']
+					]
+				];
+				$fontNum = $this->numFonts;
+				$this->objects[$id]['info']['fontNum'] = $fontNum;
+
+				// deal with the encoding and the differences
+				if (isset($options['differences'])) {
+					// then we'll need an encoding dictionary
+					$this->numObj++;
+					$this->o_fontEncoding($this->numObj, 'new', $options);
+					$this->objects[$id]['info']['encodingDictionary'] = $this->numObj;
+				} else {
+					if (isset($options['encoding'])) {
+						// we can specify encoding here
+						switch ($options['encoding']) {
+							case 'WinAnsiEncoding':
+							case 'MacRomanEncoding':
+							case 'MacExpertEncoding':
+								$this->objects[$id]['info']['encoding'] = $options['encoding'];
+								break;
+
+							case 'none':
+								break;
+
+							default:
+								$this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
+								break;
+						}
+					} else {
+						$this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
+					}
+				}
+
+				if ($this->fonts[$options['fontFileName']]['isUnicode']) {
+					// For Unicode fonts, we need to incorporate font data into
+					// sub-sections that are linked from the primary font section.
+					// Look at o_fontGIDtoCID and o_fontDescendentCID functions
+					// for more information.
+					//
+					// All of this code is adapted from the excellent changes made to
+					// transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
+
+					$toUnicodeId = ++$this->numObj;
+					$this->o_toUnicode($toUnicodeId, 'new');
+					$this->objects[$id]['info']['toUnicode'] = $toUnicodeId;
+
+					$cidFontId = ++$this->numObj;
+					$this->o_fontDescendentCID($cidFontId, 'new', $options);
+					$this->objects[$id]['info']['cidFont'] = $cidFontId;
+				}
+
+				// also tell the pages node about the new font
+				$this->o_pages($this->currentNode, 'font', ['fontNum' => $fontNum, 'objNum' => $id]);
+				break;
+
+			case 'add':
+				$font_options = $this->processFont($id, $o['info']);
+
+				if ($font_options !== false) {
+					foreach ($font_options as $k => $v) {
+						switch ($k) {
+							case 'BaseFont':
+								$o['info']['name'] = $v;
+								break;
+							case 'FirstChar':
+							case 'LastChar':
+							case 'Widths':
+							case 'FontDescriptor':
+							case 'SubType':
+								$this->addMessage('o_font ' . $k . " : " . $v);
+								$o['info'][$k] = $v;
+								break;
+						}
+					}
+
+					// pass values down to descendent font
+					if (isset($o['info']['cidFont'])) {
+						$this->o_fontDescendentCID($o['info']['cidFont'], 'add', $font_options);
+					}
+				}
+				break;
+
+			case 'out':
+				if ($this->fonts[$this->objects[$id]['info']['fontFileName']]['isUnicode']) {
+					// For Unicode fonts, we need to incorporate font data into
+					// sub-sections that are linked from the primary font section.
+					// Look at o_fontGIDtoCID and o_fontDescendentCID functions
+					// for more information.
+					//
+					// All of this code is adapted from the excellent changes made to
+					// transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
+
+					$res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
+					$res .= "/BaseFont /" . $o['info']['name'] . "\n";
+
+					// The horizontal identity mapping for 2-byte CIDs; may be used
+					// with CIDFonts using any Registry, Ordering, and Supplement values.
+					$res .= "/Encoding /Identity-H\n";
+					$res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
+					$res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
+					$res .= ">>\n";
+					$res .= "endobj";
+				} else {
+					$res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
+					$res .= "/Name /F" . $o['info']['fontNum'] . "\n";
+					$res .= "/BaseFont /" . $o['info']['name'] . "\n";
+
+					if (isset($o['info']['encodingDictionary'])) {
+						// then place a reference to the dictionary
+						$res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
+					} else {
+						if (isset($o['info']['encoding'])) {
+							// use the specified encoding
+							$res .= "/Encoding /" . $o['info']['encoding'] . "\n";
+						}
+					}
+
+					if (isset($o['info']['FirstChar'])) {
+						$res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
+					}
+
+					if (isset($o['info']['LastChar'])) {
+						$res .= "/LastChar " . $o['info']['LastChar'] . "\n";
+					}
+
+					if (isset($o['info']['Widths'])) {
+						$res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
+					}
+
+					if (isset($o['info']['FontDescriptor'])) {
+						$res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+					}
+
+					$res .= ">>\n";
+					$res .= "endobj";
+				}
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function getFontSubsettingTag(array $font): string
+	{
+		// convert font num to hexavigesimal numeral system letters A - Z only
+		$base_26 = strtoupper(base_convert($font['fontNum'], 10, 26));
+		for ($i = 0; $i < strlen($base_26); $i++) {
+			$char = $base_26[$i];
+			if ($char <= "9") {
+				$base_26[$i] = chr(65 + intval($char));
+			} else {
+				$base_26[$i] = chr(ord($char) + 10);
+			}
+		}
+
+		return 'SUB' . str_pad($base_26, 3 , 'A', STR_PAD_LEFT);
+	}
+
+	/**
+	 * @param int $fontObjId
+	 * @param array $object_info
+	 * @return array|false
+	 * @throws FontNotFoundException
+	 */
+	private function processFont(int $fontObjId, array $object_info)
+	{
+		$fontFileName = $object_info['fontFileName'];
+		if (!isset($this->fonts[$fontFileName])) {
+			return false;
+		}
+
+		$font = &$this->fonts[$fontFileName];
+
+		$fileSuffix = $font['fileSuffix'];
+		$fileSuffixLower = strtolower($font['fileSuffix']);
+		$fbfile = "$fontFileName.$fileSuffix";
+		$isTtfFont = $fileSuffixLower === 'ttf';
+		$isPfbFont = $fileSuffixLower === 'pfb';
+
+		$this->addMessage('selectFont: checking for - ' . $fbfile);
+
+		if (!$fileSuffix) {
+			$this->addMessage(
+				'selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts'
+			);
+
+			return false;
+		} else {
+			$adobeFontName = isset($font['PostScriptName']) ? $font['PostScriptName'] : $font['FontName'];
+			//        $fontObj = $this->numObj;
+			$this->addMessage("selectFont: adding font file - $fbfile - $adobeFontName");
+
+			// find the array of font widths, and put that into an object.
+			$firstChar = -1;
+			$lastChar = 0;
+			$widths = [];
+			$cid_widths = [];
+
+			foreach ($font['C'] as $num => $d) {
+				if (intval($num) > 0 || $num == '0') {
+					if (!$font['isUnicode']) {
+						// With Unicode, widths array isn't used
+						if ($lastChar > 0 && $num > $lastChar + 1) {
+							for ($i = $lastChar + 1; $i < $num; $i++) {
+								$widths[] = 0;
+							}
+						}
+					}
+
+					$widths[] = $d;
+
+					if ($font['isUnicode']) {
+						$cid_widths[$num] = $d;
+					}
+
+					if ($firstChar == -1) {
+						$firstChar = $num;
+					}
+
+					$lastChar = $num;
+				}
+			}
+
+			// also need to adjust the widths for the differences array
+			if (isset($object['differences'])) {
+				foreach ($object['differences'] as $charNum => $charName) {
+					if ($charNum > $lastChar) {
+						if (!$object['isUnicode']) {
+							// With Unicode, widths array isn't used
+							for ($i = $lastChar + 1; $i <= $charNum; $i++) {
+								$widths[] = 0;
+							}
+						}
+
+						$lastChar = $charNum;
+					}
+
+					if (isset($font['C'][$charName])) {
+						$widths[$charNum - $firstChar] = $font['C'][$charName];
+						if ($font['isUnicode']) {
+							$cid_widths[$charName] = $font['C'][$charName];
+						}
+					}
+				}
+			}
+
+			if ($font['isUnicode']) {
+				$font['CIDWidths'] = $cid_widths;
+			}
+
+			$this->addMessage('selectFont: FirstChar = ' . $firstChar);
+			$this->addMessage('selectFont: LastChar = ' . $lastChar);
+
+			$widthid = -1;
+
+			if (!$font['isUnicode']) {
+				// With Unicode, widths array isn't used
+
+				$this->numObj++;
+				$this->o_contents($this->numObj, 'new', 'raw');
+				$this->objects[$this->numObj]['c'] .= '[' . implode(' ', $widths) . ']';
+				$widthid = $this->numObj;
+			}
+
+			$missing_width = 500;
+			$stemV = 70;
+
+			if (isset($font['MissingWidth'])) {
+				$missing_width = $font['MissingWidth'];
+			}
+			if (isset($font['StdVW'])) {
+				$stemV = $font['StdVW'];
+			} else {
+				if (isset($font['Weight']) && preg_match('!(bold|black)!i', $font['Weight'])) {
+					$stemV = 120;
+				}
+			}
+
+			// load the pfb file, and put that into an object too.
+			// note that pdf supports only binary format type 1 font files, though there is a
+			// simple utility to convert them from pfa to pfb.
+			$data = file_get_contents($fbfile);
+
+			// create the font descriptor
+			$this->numObj++;
+			$fontDescriptorId = $this->numObj;
+
+			$this->numObj++;
+			$pfbid = $this->numObj;
+
+			// determine flags (more than a little flakey, hopefully will not matter much)
+			$flags = 0;
+
+			if ($font['ItalicAngle'] != 0) {
+				$flags += pow(2, 6);
+			}
+
+			if ($font['IsFixedPitch'] === 'true') {
+				$flags += 1;
+			}
+
+			$flags += pow(2, 5); // assume non-sybolic
+			$list = [
+				'Ascent'       => 'Ascender',
+				'CapHeight'    => 'Ascender', //FIXME: php-font-lib is not grabbing this value, so we'll fake it and use the Ascender value // 'CapHeight'
+				'MissingWidth' => 'MissingWidth',
+				'Descent'      => 'Descender',
+				'FontBBox'     => 'FontBBox',
+				'ItalicAngle'  => 'ItalicAngle'
+			];
+			$fdopt = [
+				'Flags'    => $flags,
+				'FontName' => $adobeFontName,
+				'StemV'    => $stemV
+			];
+
+			foreach ($list as $k => $v) {
+				if (isset($font[$v])) {
+					$fdopt[$k] = $font[$v];
+				}
+			}
+
+			if ($isPfbFont) {
+				$fdopt['FontFile'] = $pfbid;
+			} elseif ($isTtfFont) {
+				$fdopt['FontFile2'] = $pfbid;
+			}
+
+			$this->o_fontDescriptor($fontDescriptorId, 'new', $fdopt);
+
+			// embed the font program
+			$this->o_contents($this->numObj, 'new');
+			$this->objects[$pfbid]['c'] .= $data;
+
+			// determine the cruicial lengths within this file
+			if ($isPfbFont) {
+				$l1 = strpos($data, 'eexec') + 6;
+				$l2 = strpos($data, '00000000') - $l1;
+				$l3 = mb_strlen($data, '8bit') - $l2 - $l1;
+				$this->o_contents(
+					$this->numObj,
+					'add',
+					['Length1' => $l1, 'Length2' => $l2, 'Length3' => $l3]
+				);
+			} elseif ($isTtfFont) {
+				$l1 = mb_strlen($data, '8bit');
+				$this->o_contents($this->numObj, 'add', ['Length1' => $l1]);
+			}
+
+			// tell the font object about all this new stuff
+			$options = [
+				'BaseFont'       => $adobeFontName,
+				'MissingWidth'   => $missing_width,
+				'Widths'         => $widthid,
+				'FirstChar'      => $firstChar,
+				'LastChar'       => $lastChar,
+				'FontDescriptor' => $fontDescriptorId
+			];
+
+			if ($isTtfFont) {
+				$options['SubType'] = 'TrueType';
+			}
+
+			$this->addMessage("adding extra info to font.($fontObjId)");
+
+			foreach ($options as $fk => $fv) {
+				$this->addMessage("$fk : $fv");
+			}
+		}
+
+		return $options;
+	}
+
+	/**
+	 * A toUnicode section, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @return null|string
+	 */
+	protected function o_toUnicode($id, $action)
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'toUnicode'
+				];
+				break;
+			case 'add':
+				break;
+			case 'out':
+				$ordering = 'UCS';
+				$registry = 'Adobe';
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$ordering = $this->ARC4($ordering);
+					$registry = $this->filterText($this->ARC4($registry), false, false);
+				}
+
+				$stream = <<<EOT
 /CIDInit /ProcSet findresource begin
 12 dict begin
 begincmap
@@ -1312,5107 +1312,5107 @@ 
 end
 EOT;
 
-                $res = "\n$id 0 obj\n";
-                $res .= "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
-                $res .= "stream\n" . $stream . "\nendstream" . "\nendobj";;
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a font descriptor, needed for including additional fonts
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_fontDescriptor($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'fontDescriptor', 'info' => $options];
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /FontDescriptor\n";
-                foreach ($o['info'] as $label => $value) {
-                    switch ($label) {
-                        case 'Ascent':
-                        case 'CapHeight':
-                        case 'Descent':
-                        case 'Flags':
-                        case 'ItalicAngle':
-                        case 'StemV':
-                        case 'AvgWidth':
-                        case 'Leading':
-                        case 'MaxWidth':
-                        case 'MissingWidth':
-                        case 'StemH':
-                        case 'XHeight':
-                        case 'CharSet':
-                            if (mb_strlen($value, '8bit')) {
-                                $res .= "/$label $value\n";
-                            }
-
-                            break;
-                        case 'FontFile':
-                        case 'FontFile2':
-                        case 'FontFile3':
-                            $res .= "/$label $value 0 R\n";
-                            break;
-
-                        case 'FontBBox':
-                            $res .= "/$label [$value[0] $value[1] $value[2] $value[3]]\n";
-                            break;
-
-                        case 'FontName':
-                            $res .= "/$label /$value\n";
-                            break;
-                    }
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * the font encoding
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_fontEncoding($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                // the options array should contain 'differences' and maybe 'encoding'
-                $this->objects[$id] = ['t' => 'fontEncoding', 'info' => $options];
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Encoding\n";
-                if (!isset($o['info']['encoding'])) {
-                    $o['info']['encoding'] = 'WinAnsiEncoding';
-                }
-
-                if ($o['info']['encoding'] !== 'none') {
-                    $res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
-                }
-
-                $res .= "/Differences \n[";
-
-                $onum = -100;
-
-                foreach ($o['info']['differences'] as $num => $label) {
-                    if ($num != $onum + 1) {
-                        // we cannot make use of consecutive numbering
-                        $res .= "\n$num /$label";
-                    } else {
-                        $res .= " /$label";
-                    }
-
-                    $onum = $num;
-                }
-
-                $res .= "\n]\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a descendent cid font, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return null|string
-     */
-    protected function o_fontDescendentCID($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'fontDescendentCID', 'info' => $options];
-
-                // we need a CID system info section
-                $cidSystemInfoId = ++$this->numObj;
-                $this->o_cidSystemInfo($cidSystemInfoId, 'new');
-                $this->objects[$id]['info']['cidSystemInfo'] = $cidSystemInfoId;
-
-                // and a CID to GID map
-                $cidToGidMapId = ++$this->numObj;
-                $this->o_fontGIDtoCIDMap($cidToGidMapId, 'new', $options);
-                $this->objects[$id]['info']['cidToGidMap'] = $cidToGidMapId;
-                break;
-
-            case 'add':
-                foreach ($options as $k => $v) {
-                    switch ($k) {
-                        case 'BaseFont':
-                            $o['info']['name'] = $v;
-                            break;
-
-                        case 'FirstChar':
-                        case 'LastChar':
-                        case 'MissingWidth':
-                        case 'FontDescriptor':
-                        case 'SubType':
-                            $this->addMessage("o_fontDescendentCID $k : $v");
-                            $o['info'][$k] = $v;
-                            break;
-                    }
-                }
-
-                // pass values down to cid to gid map
-                $this->o_fontGIDtoCIDMap($o['info']['cidToGidMap'], 'add', $options);
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n";
-                $res .= "<</Type /Font\n";
-                $res .= "/Subtype /CIDFontType2\n";
-                $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-                $res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
-                //      if (isset($o['info']['FirstChar'])) {
-                //        $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
-                //      }
-
-                //      if (isset($o['info']['LastChar'])) {
-                //        $res.= "/LastChar ".$o['info']['LastChar']."\n";
-                //      }
-                if (isset($o['info']['FontDescriptor'])) {
-                    $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
-                }
-
-                if (isset($o['info']['MissingWidth'])) {
-                    $res .= "/DW " . $o['info']['MissingWidth'] . "\n";
-                }
-
-                if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
-                    $cid_widths = &$this->fonts[$o['info']['fontFileName']]['CIDWidths'];
-                    $w = '';
-                    foreach ($cid_widths as $cid => $width) {
-                        $w .= "$cid [$width] ";
-                    }
-                    $res .= "/W [$w]\n";
-                }
-
-                $res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
-                $res .= ">>\n";
-                $res .= "endobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * CID system info section, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @return null|string
-     */
-    protected function o_cidSystemInfo($id, $action)
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't' => 'cidSystemInfo'
-                ];
-                break;
-            case 'add':
-                break;
-            case 'out':
-                $ordering = 'UCS';
-                $registry = 'Adobe';
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $ordering = $this->ARC4($ordering);
-                    $registry = $this->ARC4($registry);
-                }
-
-
-                $res = "\n$id 0 obj\n";
-
-                $res .= '<</Registry (' . $registry . ")\n"; // A string identifying an issuer of character collections
-                $res .= '/Ordering (' . $ordering . ")\n"; // A string that uniquely names a character collection issued by a specific registry
-                $res .= "/Supplement 0\n"; // The supplement number of the character collection.
-                $res .= ">>";
-
-                $res .= "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a font glyph to character map, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_fontGIDtoCIDMap($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'fontGIDtoCIDMap', 'info' => $options];
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n";
-                $fontFileName = $o['info']['fontFileName'];
-                $tmp = $this->fonts[$fontFileName]['CIDtoGID'] = base64_decode($this->fonts[$fontFileName]['CIDtoGID']);
-
-                $compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
-                    $this->fonts[$fontFileName]['CIDtoGID_Compressed'];
-
-                if (!$compressed && isset($o['raw'])) {
-                    $res .= $tmp;
-                } else {
-                    $res .= "<<";
-
-                    if (!$compressed && $this->compressionReady && $this->options['compression']) {
-                        // then implement ZLIB based compression on this content stream
-                        $compressed = true;
-                        $tmp = gzcompress($tmp, 6);
-                    }
-                    if ($compressed) {
-                        $res .= "\n/Filter /FlateDecode";
-                    }
-
-                    if ($this->encrypted) {
-                        $this->encryptInit($id);
-                        $tmp = $this->ARC4($tmp);
-                    }
-
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
-                }
-
-                $res .= "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * the document procset, solves some problems with printing to old PS printers
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_procset($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'procset', 'info' => ['PDF' => 1, 'Text' => 1]];
-                $this->o_pages($this->currentNode, 'procset', $id);
-                $this->procsetObjectId = $id;
-                break;
-
-            case 'add':
-                // this is to add new items to the procset list, despite the fact that this is considered
-                // obsolete, the items are required for printing to some postscript printers
-                switch ($options) {
-                    case 'ImageB':
-                    case 'ImageC':
-                    case 'ImageI':
-                        $o['info'][$options] = 1;
-                        break;
-                }
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n[";
-                foreach ($o['info'] as $label => $val) {
-                    $res .= "/$label ";
-                }
-                $res .= "]\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * define the document information
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_info($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->infoObject = $id;
-                $date = 'D:' . @date('Ymd');
-                $this->objects[$id] = [
-                    't'    => 'info',
-                    'info' => [
-                        'Producer'      => 'CPDF (dompdf)',
-                        'CreationDate' => $date
-                    ]
-                ];
-                break;
-            case 'Title':
-            case 'Author':
-            case 'Subject':
-            case 'Keywords':
-            case 'Creator':
-            case 'Producer':
-            case 'CreationDate':
-            case 'ModDate':
-            case 'Trapped':
-                $this->objects[$id]['info'][$action] = $options;
-                break;
-
-            case 'out':
-                $encrypted = $this->encrypted;
-                if ($encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                $res = "\n$id 0 obj\n<<\n";
-                $o = &$this->objects[$id];
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "/$k (";
-
-                    // dates must be outputted as-is, without Unicode transformations
-                    if ($k !== 'CreationDate' && $k !== 'ModDate') {
-                        $v = $this->filterText($v, true, false);
-                    }
-
-                    if ($encrypted) {
-                        $v = $this->ARC4($v);
-                    }
-
-                    $res .= $v;
-                    $res .= ")\n";
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an action object, used to link to URLS initially
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_action($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                if (is_array($options)) {
-                    $this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => $options['type']];
-                } else {
-                    // then assume a URI action
-                    $this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => 'URI'];
-                }
-                break;
-
-            case 'out':
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                $res = "\n$id 0 obj\n<< /Type /Action";
-                switch ($o['type']) {
-                    case 'ilink':
-                        if (!isset($this->destinations[(string)$o['info']['label']])) {
-                            break;
-                        }
-
-                        // there will be an 'label' setting, this is the name of the destination
-                        $res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
-                        break;
-
-                    case 'URI':
-                        $res .= "\n/S /URI\n/URI (";
-                        if ($this->encrypted) {
-                            $res .= $this->filterText($this->ARC4($o['info']), false, false);
-                        } else {
-                            $res .= $this->filterText($o['info'], false, false);
-                        }
-
-                        $res .= ")";
-                        break;
-                }
-
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an annotation object, this will add an annotation to the current page.
-     * initially will support just link annotations
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_annotation($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                // add the annotation to the current page
-                $pageId = $this->currentPage;
-                $this->o_page($pageId, 'annot', $id);
-
-                // and add the action object which is going to be required
-                switch ($options['type']) {
-                    case 'link':
-                        $this->objects[$id] = ['t' => 'annotation', 'info' => $options];
-                        $this->numObj++;
-                        $this->o_action($this->numObj, 'new', $options['url']);
-                        $this->objects[$id]['info']['actionId'] = $this->numObj;
-                        break;
-
-                    case 'ilink':
-                        // this is to a named internal link
-                        $label = $options['label'];
-                        $this->objects[$id] = ['t' => 'annotation', 'info' => $options];
-                        $this->numObj++;
-                        $this->o_action($this->numObj, 'new', ['type' => 'ilink', 'label' => $label]);
-                        $this->objects[$id]['info']['actionId'] = $this->numObj;
-                        break;
-                }
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Annot";
-                switch ($o['info']['type']) {
-                    case 'link':
-                    case 'ilink':
-                        $res .= "\n/Subtype /Link";
-                        break;
-                }
-                $res .= "\n/A " . $o['info']['actionId'] . " 0 R";
-                $res .= "\n/Border [0 0 0]";
-                $res .= "\n/H /I";
-                $res .= "\n/Rect [ ";
-
-                foreach ($o['info']['rect'] as $v) {
-                    $res .= sprintf("%.4F ", $v);
-                }
-
-                $res .= "]";
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a page object, it also creates a contents object to hold its contents
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_page($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->numPages++;
-                $this->objects[$id] = [
-                    't'    => 'page',
-                    'info' => [
-                        'parent'  => $this->currentNode,
-                        'pageNum' => $this->numPages,
-                        'mediaBox' => $this->objects[$this->currentNode]['info']['mediaBox']
-                    ]
-                ];
-
-                if (is_array($options)) {
-                    // then this must be a page insertion, array should contain 'rid','pos'=[before|after]
-                    $options['id'] = $id;
-                    $this->o_pages($this->currentNode, 'page', $options);
-                } else {
-                    $this->o_pages($this->currentNode, 'page', $id);
-                }
-
-                $this->currentPage = $id;
-                //make a contents object to go with this page
-                $this->numObj++;
-                $this->o_contents($this->numObj, 'new', $id);
-                $this->currentContents = $this->numObj;
-                $this->objects[$id]['info']['contents'] = [];
-                $this->objects[$id]['info']['contents'][] = $this->numObj;
-
-                $match = ($this->numPages % 2 ? 'odd' : 'even');
-                foreach ($this->addLooseObjects as $oId => $target) {
-                    if ($target === 'all' || $match === $target) {
-                        $this->objects[$id]['info']['contents'][] = $oId;
-                    }
-                }
-                break;
-
-            case 'content':
-                $o['info']['contents'][] = $options;
-                break;
-
-            case 'annot':
-                // add an annotation to this page
-                if (!isset($o['info']['annot'])) {
-                    $o['info']['annot'] = [];
-                }
-
-                // $options should contain the id of the annotation dictionary
-                $o['info']['annot'][] = $options;
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Page";
-                if (isset($o['info']['mediaBox'])) {
-                    $tmp = $o['info']['mediaBox'];
-                    $res .= "\n/MediaBox [" . sprintf(
-                            '%.3F %.3F %.3F %.3F',
-                            $tmp[0],
-                            $tmp[1],
-                            $tmp[2],
-                            $tmp[3]
-                        ) . ']';
-                }
-                $res .= "\n/Parent " . $o['info']['parent'] . " 0 R";
-
-                if (isset($o['info']['annot'])) {
-                    $res .= "\n/Annots [";
-                    foreach ($o['info']['annot'] as $aId) {
-                        $res .= " $aId 0 R";
-                    }
-                    $res .= " ]";
-                }
-
-                $count = count($o['info']['contents']);
-                if ($count == 1) {
-                    $res .= "\n/Contents " . $o['info']['contents'][0] . " 0 R";
-                } else {
-                    if ($count > 1) {
-                        $res .= "\n/Contents [\n";
-
-                        // reverse the page contents so added objects are below normal content
-                        //foreach (array_reverse($o['info']['contents']) as $cId) {
-                        // Back to normal now that I've got transparency working --Benj
-                        foreach ($o['info']['contents'] as $cId) {
-                            $res .= "$cId 0 R\n";
-                        }
-                        $res .= "]";
-                    }
-                }
-
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * the contents objects hold all of the content which appears on pages
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return null|string
-     */
-    protected function o_contents($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'contents', 'c' => '', 'info' => []];
-                if (mb_strlen($options, '8bit') && intval($options)) {
-                    // then this contents is the primary for a page
-                    $this->objects[$id]['onPage'] = $options;
-                } else {
-                    if ($options === 'raw') {
-                        // then this page contains some other type of system object
-                        $this->objects[$id]['raw'] = 1;
-                    }
-                }
-                break;
-
-            case 'add':
-                // add more options to the declaration
-                foreach ($options as $k => $v) {
-                    $o['info'][$k] = $v;
-                }
-
-            case 'out':
-                $tmp = $o['c'];
-                $res = "\n$id 0 obj\n";
-
-                if (isset($this->objects[$id]['raw'])) {
-                    $res .= $tmp;
-                } else {
-                    $res .= "<<";
-                    if ($this->compressionReady && $this->options['compression']) {
-                        // then implement ZLIB based compression on this content stream
-                        $res .= " /Filter /FlateDecode";
-                        $tmp = gzcompress($tmp, 6);
-                    }
-
-                    if ($this->encrypted) {
-                        $this->encryptInit($id);
-                        $tmp = $this->ARC4($tmp);
-                    }
-
-                    foreach ($o['info'] as $k => $v) {
-                        $res .= "\n/$k $v";
-                    }
-
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . " >>\nstream\n$tmp\nendstream";
-                }
-
-                $res .= "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @return string|null
-     */
-    protected function o_embedjs($id, $action)
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'embedjs',
-                    'info' => [
-                        'Names' => '[(EmbeddedJS) ' . ($id + 1) . ' 0 R]'
-                    ]
-                ];
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< ";
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "\n/$k $v";
-                }
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @param string $code
-     * @return null|string
-     */
-    protected function o_javascript($id, $action, $code = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'javascript',
-                    'info' => [
-                        'S'  => '/JavaScript',
-                        'JS' => '(' . $this->filterText($code, true, false) . ')',
-                    ]
-                ];
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< ";
-
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "\n/$k $v";
-                }
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an image object, will be an XObject in the document, includes description and data
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_image($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                // make the new object
-                $this->objects[$id] = ['t' => 'image', 'data' => &$options['data'], 'info' => []];
-
-                $info =& $this->objects[$id]['info'];
-
-                $info['Type'] = '/XObject';
-                $info['Subtype'] = '/Image';
-                $info['Width'] = $options['iw'];
-                $info['Height'] = $options['ih'];
-
-                if (isset($options['masked']) && $options['masked']) {
-                    $info['SMask'] = ($this->numObj - 1) . ' 0 R';
-                }
-
-                if (!isset($options['type']) || $options['type'] === 'jpg') {
-                    if (!isset($options['channels'])) {
-                        $options['channels'] = 3;
-                    }
-
-                    switch ($options['channels']) {
-                        case 1:
-                            $info['ColorSpace'] = '/DeviceGray';
-                            break;
-                        case 4:
-                            $info['ColorSpace'] = '/DeviceCMYK';
-                            break;
-                        default:
-                            $info['ColorSpace'] = '/DeviceRGB';
-                            break;
-                    }
-
-                    if ($info['ColorSpace'] === '/DeviceCMYK') {
-                        $info['Decode'] = '[1 0 1 0 1 0 1 0]';
-                    }
-
-                    $info['Filter'] = '/DCTDecode';
-                    $info['BitsPerComponent'] = 8;
-                } else {
-                    if ($options['type'] === 'png') {
-                        $info['Filter'] = '/FlateDecode';
-                        $info['DecodeParms'] = '<< /Predictor 15 /Colors ' . $options['ncolor'] . ' /Columns ' . $options['iw'] . ' /BitsPerComponent ' . $options['bitsPerComponent'] . '>>';
-
-                        if ($options['isMask']) {
-                            $info['ColorSpace'] = '/DeviceGray';
-                        } else {
-                            if (mb_strlen($options['pdata'], '8bit')) {
-                                $tmp = ' [ /Indexed /DeviceRGB ' . (mb_strlen($options['pdata'], '8bit') / 3 - 1) . ' ';
-                                $this->numObj++;
-                                $this->o_contents($this->numObj, 'new');
-                                $this->objects[$this->numObj]['c'] = $options['pdata'];
-                                $tmp .= $this->numObj . ' 0 R';
-                                $tmp .= ' ]';
-                                $info['ColorSpace'] = $tmp;
-
-                                if (isset($options['transparency'])) {
-                                    $transparency = $options['transparency'];
-                                    switch ($transparency['type']) {
-                                        case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-
-                                        case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] .
-                                                $transparency['g'] . ' ' . $transparency['g'] .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
-                                                ' ] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-                                    }
-                                }
-                            } else {
-                                if (isset($options['transparency'])) {
-                                    $transparency = $options['transparency'];
-
-                                    switch ($transparency['type']) {
-                                        case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-
-                                        case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] . ' ' .
-                                                $transparency['g'] . ' ' . $transparency['g'] . ' ' .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
-                                                ' ] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-                                    }
-                                }
-                                $info['ColorSpace'] = '/' . $options['color'];
-                            }
-                        }
-
-                        $info['BitsPerComponent'] = $options['bitsPerComponent'];
-                    }
-                }
-
-                // assign it a place in the named resource dictionary as an external object, according to
-                // the label passed in with it.
-                $this->o_pages($this->currentNode, 'xObject', ['label' => $options['label'], 'objNum' => $id]);
-
-                // also make sure that we have the right procset object for it.
-                $this->o_procset($this->procsetObjectId, 'add', 'ImageC');
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $tmp = &$o['data'];
-                $res = "\n$id 0 obj\n<<";
-
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "\n/$k $v";
-                }
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $tmp = $this->ARC4($tmp);
-                }
-
-                $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * graphics state object
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_extGState($id, $action, $options = "")
-    {
-        static $valid_params = [
-            "LW",
-            "LC",
-            "LC",
-            "LJ",
-            "ML",
-            "D",
-            "RI",
-            "OP",
-            "op",
-            "OPM",
-            "Font",
-            "BG",
-            "BG2",
-            "UCR",
-            "TR",
-            "TR2",
-            "HT",
-            "FL",
-            "SM",
-            "SA",
-            "BM",
-            "SMask",
-            "CA",
-            "ca",
-            "AIS",
-            "TK"
-        ];
-
-        switch ($action) {
-            case "new":
-                $this->objects[$id] = ['t' => 'extGState', 'info' => $options];
-
-                // Tell the pages about the new resource
-                $this->numStates++;
-                $this->o_pages($this->currentNode, 'extGState', ["objNum" => $id, "stateNum" => $this->numStates]);
-                break;
-
-            case "out":
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< /Type /ExtGState\n";
-
-                foreach ($o["info"] as $k => $v) {
-                    if (!in_array($k, $valid_params)) {
-                        continue;
-                    }
-                    $res .= "/$k $v\n";
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param integer $id
-     * @param string $action
-     * @param mixed $options
-     * @return string
-     */
-    protected function o_xobject($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'xobject', 'info' => $options, 'c' => ''];
-                break;
-
-            case 'procset':
-                $this->objects[$id]['procset'] = $options;
-                break;
-
-            case 'font':
-                $this->objects[$id]['fonts'][$options['fontNum']] = [
-                  'objNum' => $options['objNum'],
-                  'fontNum' => $options['fontNum']
-                ];
-                break;
-
-            case 'xObject':
-                $this->objects[$id]['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< /Type /XObject\n";
-
-                foreach ($o["info"] as $k => $v) {
-                    switch($k)
-                    {
-                        case 'Subtype':
-                            $res .= "/Subtype /$v\n";
-                            break;
-                        case 'bbox':
-                            $res .= "/BBox [";
-                            foreach ($v as $value) {
-                                $res .= sprintf("%.4F ", $value);
-                            }
-                            $res .= "]\n";
-                            break;
-                        default:
-                            $res .= "/$k $v\n";
-                            break;
-                    }
-                }
-                $res .= "/Matrix[1.0 0.0 0.0 1.0 0.0 0.0]\n";
-
-                $res .= "/Resources <<";
-                if (isset($o['procset'])) {
-                    $res .= "\n/ProcSet " . $o['procset'] . " 0 R";
-                } else {
-                    $res .= "\n/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]";
-                }
-                if (isset($o['fonts']) && count($o['fonts'])) {
-                    $res .= "\n/Font << ";
-                    foreach ($o['fonts'] as $finfo) {
-                        $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
-                    }
-                    $res .= "\n>>";
-                }
-                if (isset($o['xObjects']) && count($o['xObjects'])) {
-                    $res .= "\n/XObject << ";
-                    foreach ($o['xObjects'] as $finfo) {
-                        $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
-                    }
-                    $res .= "\n>>";
-                }
-                $res .= "\n>>\n";
-
-                $tmp = $o["c"];
-                if ($this->compressionReady && $this->options['compression']) {
-                    // then implement ZLIB based compression on this content stream
-                    $res .= " /Filter /FlateDecode\n";
-                    $tmp = gzcompress($tmp, 6);
-                }
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $tmp = $this->ARC4($tmp);
-                }
-
-                $res .= "/Length " . mb_strlen($tmp, '8bit') . " >>\n";
-                $res .= "stream\n" . $tmp . "\nendstream" . "\nendobj";;
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_acroform($id, $action, $options = '')
-    {
-        switch ($action) {
-            case "new":
-                $this->o_catalog($this->catalogId, 'acroform', $id);
-                $this->objects[$id] = array('t' => 'acroform', 'info' => $options);
-                break;
-
-            case 'addfield':
-                $this->objects[$id]['info']['Fields'][] = $options;
-                break;
-
-            case 'font':
-                $this->objects[$id]['fonts'][$options['fontNum']] = [
-                  'objNum' => $options['objNum'],
-                  'fontNum' => $options['fontNum']
-                ];
-                break;
-
-            case "out":
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<<";
-
-                foreach ($o["info"] as $k => $v) {
-                    switch($k) {
-                        case 'Fields':
-                            $res .= " /Fields [";
-                            foreach ($v as $i) {
-                                $res .= "$i 0 R ";
-                            }
-                            $res .= "]\n";
-                            break;
-                        default:
-                            $res .= "/$k $v\n";
-                    }
-                }
-
-                $res .= "/DR <<\n";
-                if (isset($o['fonts']) && count($o['fonts'])) {
-                    $res .= "/Font << \n";
-                    foreach ($o['fonts'] as $finfo) {
-                        $res .= "/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R\n";
-                    }
-                    $res .= ">>\n";
-                }
-                $res .= ">>\n";
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @param mixed $options
-     * @return null|string
-     */
-    protected function o_field($id, $action, $options = '')
-    {
-        switch ($action) {
-            case "new":
-                $this->o_page($options['pageid'], 'annot', $id);
-                $this->o_acroform($this->acroFormId, 'addfield', $id);
-                $this->objects[$id] = ['t' => 'field', 'info' => $options];
-                break;
-
-            case 'set':
-                $this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
-                break;
-
-            case "out":
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< /Type /Annot /Subtype /Widget \n";
-
-                $encrypted = $this->encrypted;
-                if ($encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                foreach ($o["info"] as $k => $v) {
-                    switch ($k) {
-                        case 'pageid':
-                            $res .= "/P $v 0 R\n";
-                            break;
-                        case 'value':
-                            if ($encrypted) {
-                                $v = $this->filterText($this->ARC4($v), false, false);
-                            }
-                            $res .= "/V ($v)\n";
-                            break;
-                        case 'refvalue':
-                            $res .= "/V $v 0 R\n";
-                            break;
-                        case 'da':
-                            if ($encrypted) {
-                                $v = $this->filterText($this->ARC4($v), false, false);
-                            }
-                            $res .= "/DA ($v)\n";
-                            break;
-                        case 'options':
-                            $res .= "/Opt [\n";
-                            foreach ($v as $opt) {
-                                if ($encrypted) {
-                                    $opt = $this->filterText($this->ARC4($opt), false, false);
-                                }
-                                $res .= "($opt)\n";
-                            }
-                            $res .= "]\n";
-                            break;
-                        case 'rect':
-                            $res .= "/Rect [";
-                            foreach ($v as $value) {
-                                $res .= sprintf("%.4F ", $value);
-                            }
-                            $res .= "]\n";
-                            break;
-                        case 'appearance':
-                            $res .= "/AP << ";
-                            foreach ($v as $a => $ref) {
-                                $res .= "/$a $ref 0 R ";
-                            }
-                            $res .= ">>\n";
-                            break;
-                        case 'T':
-                            if($encrypted) {
-                                $v = $this->filterText($this->ARC4($v), false, false);
-                            }
-                            $res .= "/T ($v)\n";
-                            break;
-                        default:
-                            $res .= "/$k $v\n";
-                    }
-
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_sig($id, $action, $options = '')
-    {
-        $sign_maxlen = $this->signatureMaxLen;
-
-        switch ($action) {
-            case "new":
-                $this->objects[$id] = array('t' => 'sig', 'info' => $options);
-                $this->byteRange[$id] = ['t' => 'sig'];
-                break;
-
-            case 'byterange':
-                $o = &$this->objects[$id];
-                $content =& $options['content'];
-                $content_len = strlen($content);
-                $pos = strpos($content, sprintf("/ByteRange [ %'.010d", $id));
-                $len = strlen('/ByteRange [ ********** ********** ********** ********** ]');
-                $rangeStartPos = $pos + $len + 1 + 10; // before '<'
-                $content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos ), $len, ' ', STR_PAD_RIGHT), $pos, $len);
-
-                $fuid = uniqid();
-                $tmpInput = $this->tmp . "/pkcs7.tmp." . $fuid . '.in';
-                $tmpOutput = $this->tmp . "/pkcs7.tmp." . $fuid . '.out';
-
-                if (file_put_contents($tmpInput, substr($content, 0, $rangeStartPos)) === false) {
-                    throw new \Exception("Unable to write temporary file for signing.");
-                }
-                if (file_put_contents($tmpInput, substr($content, $rangeStartPos + 2 + $sign_maxlen),
-                    FILE_APPEND) === false) {
-                    throw new \Exception("Unable to write temporary file for signing.");
-                }
-
-                if (openssl_pkcs7_sign($tmpInput, $tmpOutput,
-                    $o['info']['SignCert'],
-                    array($o['info']['PrivKey'], $o['info']['Password']),
-                    array(), PKCS7_BINARY | PKCS7_DETACHED) === false) {
-                    throw new \Exception("Failed to prepare signature.");
-                }
-
-                $signature = file_get_contents($tmpOutput);
-
-                unlink($tmpInput);
-                unlink($tmpOutput);
-
-                $sign = substr($signature, (strpos($signature, "%%EOF\n\n------") + 13));
-                list($head, $signature) = explode("\n\n", $sign);
-
-                $signature = base64_decode(trim($signature));
-
-                $signature = current(unpack('H*', $signature));
-                $signature = str_pad($signature, $sign_maxlen, '0');
-                $siglen = strlen($signature);
-                if (strlen($signature) > $sign_maxlen) {
-                    throw new \Exception("Signature length ($siglen) exceeds the $sign_maxlen limit.");
-                }
-
-                $content = substr_replace($content, $signature, $rangeStartPos + 1, $sign_maxlen);
-                break;
-
-            case "out":
-                $res = "\n$id 0 obj\n<<\n";
-
-                $encrypted = $this->encrypted;
-                if ($encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                $res .= "/ByteRange " .sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
-                $res .= "/Contents <" . str_pad('', $sign_maxlen, '0') . ">\n";
-                $res .= "/Filter/Adobe.PPKLite\n"; //PPKMS \n";
-                $res .= "/Type/Sig/SubFilter/adbe.pkcs7.detached \n";
-
-                $date = "D:" . substr_replace(date('YmdHisO'), '\'', -2, 0) . '\'';
-                if ($encrypted) {
-                    $date = $this->ARC4($date);
-                }
-
-                $res .= "/M ($date)\n";
-                $res .= "/Prop_Build << /App << /Name /DomPDF >> /Filter << /Name /Adobe.PPKLite >> >>\n";
-
-                $o = &$this->objects[$id];
-                foreach ($o['info'] as $k => $v) {
-                    switch($k) {
-                        case 'Name':
-                        case 'Location':
-                        case 'Reason':
-                        case 'ContactInfo':
-                            if ($v !== null && $v !== '') {
-                                $res .= "/$k (" .
-                                  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v) . ") \n";
-                            }
-                            break;
-                    }
-                }
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * encryption object.
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_encryption($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                // make the new object
-                $this->objects[$id] = ['t' => 'encryption', 'info' => $options];
-                $this->arc4_objnum = $id;
-                break;
-
-            case 'keys':
-                // figure out the additional parameters required
-                $pad = chr(0x28) . chr(0xBF) . chr(0x4E) . chr(0x5E) . chr(0x4E) . chr(0x75) . chr(0x8A) . chr(0x41)
-                    . chr(0x64) . chr(0x00) . chr(0x4E) . chr(0x56) . chr(0xFF) . chr(0xFA) . chr(0x01) . chr(0x08)
-                    . chr(0x2E) . chr(0x2E) . chr(0x00) . chr(0xB6) . chr(0xD0) . chr(0x68) . chr(0x3E) . chr(0x80)
-                    . chr(0x2F) . chr(0x0C) . chr(0xA9) . chr(0xFE) . chr(0x64) . chr(0x53) . chr(0x69) . chr(0x7A);
-
-                $info = $this->objects[$id]['info'];
-
-                $len = mb_strlen($info['owner'], '8bit');
-
-                if ($len > 32) {
-                    $owner = substr($info['owner'], 0, 32);
-                } else {
-                    if ($len < 32) {
-                        $owner = $info['owner'] . substr($pad, 0, 32 - $len);
-                    } else {
-                        $owner = $info['owner'];
-                    }
-                }
-
-                $len = mb_strlen($info['user'], '8bit');
-                if ($len > 32) {
-                    $user = substr($info['user'], 0, 32);
-                } else {
-                    if ($len < 32) {
-                        $user = $info['user'] . substr($pad, 0, 32 - $len);
-                    } else {
-                        $user = $info['user'];
-                    }
-                }
-
-                $tmp = $this->md5_16($owner);
-                $okey = substr($tmp, 0, 5);
-                $this->ARC4_init($okey);
-                $ovalue = $this->ARC4($user);
-                $this->objects[$id]['info']['O'] = $ovalue;
-
-                // now make the u value, phew.
-                $tmp = $this->md5_16(
-                    $user . $ovalue . chr($info['p']) . chr(255) . chr(255) . chr(255) . hex2bin($this->fileIdentifier)
-                );
-
-                $ukey = substr($tmp, 0, 5);
-                $this->ARC4_init($ukey);
-                $this->encryptionKey = $ukey;
-                $this->encrypted = true;
-                $uvalue = $this->ARC4($pad);
-                $this->objects[$id]['info']['U'] = $uvalue;
-                // initialize the arc4 array
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-
-                $res = "\n$id 0 obj\n<<";
-                $res .= "\n/Filter /Standard";
-                $res .= "\n/V 1";
-                $res .= "\n/R 2";
-                $res .= "\n/O (" . $this->filterText($o['info']['O'], false, false) . ')';
-                $res .= "\n/U (" . $this->filterText($o['info']['U'], false, false) . ')';
-                // and the p-value needs to be converted to account for the twos-complement approach
-                $o['info']['p'] = (($o['info']['p'] ^ 255) + 1) * -1;
-                $res .= "\n/P " . ($o['info']['p']);
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_indirect_references($id, $action, $options = null)
-    {
-        switch ($action) {
-            case 'new':
-            case 'add':
-                if ($id === 0) {
-                    $id = ++$this->numObj;
-                    $this->o_catalog($this->catalogId, 'names', $id);
-                    $this->objects[$id] = ['t' => 'indirect_references', 'info' => $options];
-                    $this->indirectReferenceId = $id;
-                } else {
-                    $this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
-                }
-                break;
-            case 'out':
-                $res = "\n$id 0 obj << ";
-
-                foreach($this->objects[$id]['info'] as $referenceObjName => $referenceObjId) {
-                    $res .= "/$referenceObjName $referenceObjId 0 R ";
-                }
-
-                $res .= ">> endobj";
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_names($id, $action, $options = null)
-    {
-        switch ($action) {
-            case 'new':
-            case 'add':
-                if ($id === 0) {
-                    $id = ++$this->numObj;
-                    $this->objects[$id] = ['t' => 'names', 'info' => [$options]];
-                    $this->o_indirect_references($this->indirectReferenceId, 'add', ['EmbeddedFiles' => $id]);
-                    $this->embeddedFilesId = $id;
-                } else {
-                    $this->objects[$id]['info'][] = $options;
-                }
-                break;
-            case 'out':
-                $info = &$this->objects[$id]['info'];
-                $res = '';
-                if (count($info) > 0) {
-                    $res = "\n$id 0 obj << /Names [ ";
-
-                    if ($this->encrypted) {
-                        $this->encryptInit($id);
-                    }
-
-                    foreach ($info as $entry) {
-                        if ($this->encrypted) {
-                            $filename = $this->ARC4($entry['filename']);
-                        } else {
-                            $filename = $entry['filename'];
-                        }
-
-                        $res .= "($filename) " . $entry['dict_reference'] . " 0 R ";
-                    }
-
-                    $res .= "] >> endobj";
-                }
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_embedded_file_dictionary($id, $action, $options = null)
-    {
-        switch ($action) {
-            case 'new':
-                $embeddedFileId = ++$this->numObj;
-                $options['embedded_reference'] = $embeddedFileId;
-                $this->objects[$id] = ['t' => 'embedded_file_dictionary', 'info' => $options];
-                $this->o_embedded_file($embeddedFileId, 'new', $options);
-                $options['dict_reference'] = $id;
-                $this->o_names($this->embeddedFilesId, 'add', $options);
-                break;
-            case 'out':
-                $info = &$this->objects[$id]['info'];
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $filename = $this->ARC4($info['filename']);
-                    $description = $this->ARC4($info['description']);
-                } else {
-                    $filename = $info['filename'];
-                    $description = $info['description'];
-                }
-
-                $res = "\n$id 0 obj <</Type /Filespec /EF";
-                $res .= " <</F " . $info['embedded_reference'] . " 0 R >>";
-                $res .= " /F ($filename) /UF ($filename) /Desc ($description)";
-                $res .= " >> endobj";
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_embedded_file($id, $action, $options = null): ?string
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'embedded_file', 'info' => $options];
-                break;
-            case 'out':
-                $info = &$this->objects[$id]['info'];
-
-                if ($this->compressionReady) {
-                    $filepath = $info['filepath'];
-                    $checksum = md5_file($filepath);
-                    $f = fopen($filepath, "rb");
-
-                    $file_content_compressed = '';
-                    $deflateContext = deflate_init(ZLIB_ENCODING_DEFLATE, ['level' => 6]);
-                    while (($block = fread($f, 8192))) {
-                        $file_content_compressed .= deflate_add($deflateContext, $block, ZLIB_NO_FLUSH);
-                    }
-                    $file_content_compressed .= deflate_add($deflateContext, '', ZLIB_FINISH);
-                    $file_size_uncompressed = ftell($f);
-                    fclose($f);
-                } else {
-                    $file_content = file_get_contents($info['filepath']);
-                    $file_size_uncompressed = mb_strlen($file_content, '8bit');
-                    $checksum = md5($file_content);
-                }
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $checksum = $this->ARC4($checksum);
-                    $file_content_compressed = $this->ARC4($file_content_compressed);
-                }
-                $file_size_compressed = mb_strlen($file_content_compressed, '8bit');
-
-                $res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>" .
-                    " /Type/EmbeddedFile /Filter/FlateDecode" .
-                    " /Length $file_size_compressed >> stream\n$file_content_compressed\nendstream\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * ARC4 functions
-     * A series of function to implement ARC4 encoding in PHP
-     */
-
-    /**
-     * calculate the 16 byte version of the 128 bit md5 digest of the string
-     *
-     * @param $string
-     * @return string
-     */
-    function md5_16($string)
-    {
-        $tmp = md5($string);
-        $out = '';
-        for ($i = 0; $i <= 30; $i = $i + 2) {
-            $out .= chr(hexdec(substr($tmp, $i, 2)));
-        }
-
-        return $out;
-    }
-
-    /**
-     * initialize the encryption for processing a particular object
-     *
-     * @param $id
-     */
-    function encryptInit($id)
-    {
-        $tmp = $this->encryptionKey;
-        $hex = dechex($id);
-        if (mb_strlen($hex, '8bit') < 6) {
-            $hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')) . $hex;
-        }
-        $tmp .= chr(hexdec(substr($hex, 4, 2)))
-            . chr(hexdec(substr($hex, 2, 2)))
-            . chr(hexdec(substr($hex, 0, 2)))
-            . chr(0)
-            . chr(0)
-        ;
-        $key = $this->md5_16($tmp);
-        $this->ARC4_init(substr($key, 0, 10));
-    }
-
-    /**
-     * initialize the ARC4 encryption
-     *
-     * @param string $key
-     */
-    function ARC4_init($key = '')
-    {
-        $this->arc4 = '';
-
-        // setup the control array
-        if (mb_strlen($key, '8bit') == 0) {
-            return;
-        }
-
-        $k = '';
-        while (mb_strlen($k, '8bit') < 256) {
-            $k .= $key;
-        }
-
-        $k = substr($k, 0, 256);
-        for ($i = 0; $i < 256; $i++) {
-            $this->arc4 .= chr($i);
-        }
-
-        $j = 0;
-
-        for ($i = 0; $i < 256; $i++) {
-            $t = $this->arc4[$i];
-            $j = ($j + ord($t) + ord($k[$i])) % 256;
-            $this->arc4[$i] = $this->arc4[$j];
-            $this->arc4[$j] = $t;
-        }
-    }
-
-    /**
-     * ARC4 encrypt a text string
-     *
-     * @param $text
-     * @return string
-     */
-    function ARC4($text)
-    {
-        $len = mb_strlen($text, '8bit');
-        $a = 0;
-        $b = 0;
-        $c = $this->arc4;
-        $out = '';
-        for ($i = 0; $i < $len; $i++) {
-            $a = ($a + 1) % 256;
-            $t = $c[$a];
-            $b = ($b + ord($t)) % 256;
-            $c[$a] = $c[$b];
-            $c[$b] = $t;
-            $k = ord($c[(ord($c[$a]) + ord($c[$b])) % 256]);
-            $out .= chr(ord($text[$i]) ^ $k);
-        }
-
-        return $out;
-    }
-
-    /**
-     * functions which can be called to adjust or add to the document
-     */
-
-    /**
-     * add a link in the document to an external URL
-     *
-     * @param $url
-     * @param $x0
-     * @param $y0
-     * @param $x1
-     * @param $y1
-     */
-    function addLink($url, $x0, $y0, $x1, $y1)
-    {
-        $this->numObj++;
-        $info = ['type' => 'link', 'url' => $url, 'rect' => [$x0, $y0, $x1, $y1]];
-        $this->o_annotation($this->numObj, 'new', $info);
-    }
-
-    /**
-     * add a link in the document to an internal destination (ie. within the document)
-     *
-     * @param $label
-     * @param $x0
-     * @param $y0
-     * @param $x1
-     * @param $y1
-     */
-    function addInternalLink($label, $x0, $y0, $x1, $y1)
-    {
-        $this->numObj++;
-        $info = ['type' => 'ilink', 'label' => $label, 'rect' => [$x0, $y0, $x1, $y1]];
-        $this->o_annotation($this->numObj, 'new', $info);
-    }
-
-    /**
-     * set the encryption of the document
-     * can be used to turn it on and/or set the passwords which it will have.
-     * also the functions that the user will have are set here, such as print, modify, add
-     *
-     * @param string $userPass
-     * @param string $ownerPass
-     * @param array $pc
-     */
-    function setEncryption($userPass = '', $ownerPass = '', $pc = [])
-    {
-        $p = bindec("11000000");
-
-        $options = ['print' => 4, 'modify' => 8, 'copy' => 16, 'add' => 32];
-
-        foreach ($pc as $k => $v) {
-            if ($v && isset($options[$k])) {
-                $p += $options[$k];
-            } else {
-                if (isset($options[$v])) {
-                    $p += $options[$v];
-                }
-            }
-        }
-
-        // implement encryption on the document
-        if ($this->arc4_objnum == 0) {
-            // then the block does not exist already, add it.
-            $this->numObj++;
-            if (mb_strlen($ownerPass) == 0) {
-                $ownerPass = $userPass;
-            }
-
-            $this->o_encryption($this->numObj, 'new', ['user' => $userPass, 'owner' => $ownerPass, 'p' => $p]);
-        }
-    }
-
-    /**
-     * should be used for internal checks, not implemented as yet
-     */
-    function checkAllHere()
-    {
-    }
-
-    /**
-     * return the pdf stream as a string returned from the function
-     *
-     * @param bool $debug
-     * @return string
-     */
-    function output($debug = false)
-    {
-        if ($debug) {
-            // turn compression off
-            $this->options['compression'] = false;
-        }
-
-        if ($this->javascript) {
-            $this->numObj++;
-
-            $js_id = $this->numObj;
-            $this->o_embedjs($js_id, 'new');
-            $this->o_javascript(++$this->numObj, 'new', $this->javascript);
-
-            $id = $this->catalogId;
-
-            $this->o_indirect_references($this->indirectReferenceId, 'add', ['JavaScript' => $js_id]);
-        }
-
-        if ($this->fileIdentifier === '') {
-            $tmp = implode('', $this->objects[$this->infoObject]['info']);
-            $this->fileIdentifier = md5('DOMPDF' . __FILE__ . $tmp . microtime() . mt_rand());
-        }
-
-        if ($this->arc4_objnum) {
-            $this->o_encryption($this->arc4_objnum, 'keys');
-            $this->ARC4_init($this->encryptionKey);
-        }
-
-        $this->checkAllHere();
-
-        $xref = [];
-        $content = '%PDF-' . self::PDF_VERSION;
-        $pos = mb_strlen($content, '8bit');
-
-        // pre-process o_font objects before output of all objects
-        foreach ($this->objects as $k => $v) {
-            if ($v['t'] === 'font') {
-                $this->o_font($k, 'add');
-            }
-        }
-
-        foreach ($this->objects as $k => $v) {
-            $tmp = 'o_' . $v['t'];
-            $cont = $this->$tmp($k, 'out');
-            $content .= $cont;
-            $xref[] = $pos + 1; //+1 to account for \n at the start of each object
-            $pos += mb_strlen($cont, '8bit');
-        }
-
-        $content .= "\nxref\n0 " . (count($xref) + 1) . "\n0000000000 65535 f \n";
-
-        foreach ($xref as $p) {
-            $content .= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
-        }
-
-        $content .= "trailer\n<<\n" .
-            '/Size ' . (count($xref) + 1) . "\n" .
-            '/Root 1 0 R' . "\n" .
-            '/Info ' . $this->infoObject . " 0 R\n"
-        ;
-
-        // if encryption has been applied to this document then add the marker for this dictionary
-        if ($this->arc4_objnum > 0) {
-            $content .= '/Encrypt ' . $this->arc4_objnum . " 0 R\n";
-        }
-
-        $content .= '/ID[<' . $this->fileIdentifier . '><' . $this->fileIdentifier . ">]\n";
-
-        // account for \n added at start of xref table
-        $pos++;
-
-        $content .= ">>\nstartxref\n$pos\n%%EOF\n";
-
-        if (count($this->byteRange) > 0) {
-            foreach ($this->byteRange as $k => $v) {
-                $tmp = 'o_' . $v['t'];
-                $this->$tmp($k, 'byterange', ['content' => &$content]);
-            }
-        }
-
-        return $content;
-    }
-
-    /**
-     * initialize a new document
-     * if this is called on an existing document results may be unpredictable, but the existing document would be lost at minimum
-     * this function is called automatically by the constructor function
-     *
-     * @param array $pageSize
-     */
-    private function newDocument($pageSize = [0, 0, 612, 792])
-    {
-        $this->numObj = 0;
-        $this->objects = [];
-
-        $this->numObj++;
-        $this->o_catalog($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_outlines($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_pages($this->numObj, 'new');
-
-        $this->o_pages($this->numObj, 'mediaBox', $pageSize);
-        $this->currentNode = 3;
-
-        $this->numObj++;
-        $this->o_procset($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_info($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_page($this->numObj, 'new');
-
-        // need to store the first page id as there is no way to get it to the user during
-        // startup
-        $this->firstPageId = $this->currentContents;
-    }
-
-    /**
-     * open the font file and return a php structure containing it.
-     * first check if this one has been done before and saved in a form more suited to php
-     * note that if a php serialized version does not exist it will try and make one, but will
-     * require write access to the directory to do it... it is MUCH faster to have these serialized
-     * files.
-     *
-     * @param $font
-     */
-    private function openFont($font)
-    {
-        // assume that $font contains the path and file but not the extension
-        $name = basename($font);
-        $dir = dirname($font) . '/';
-
-        $fontcache = $this->fontcache;
-        if ($fontcache == '') {
-            $fontcache = rtrim($dir, DIRECTORY_SEPARATOR."/\\");
-        }
-
-        //$name       filename without folder and extension of font metrics
-        //$dir        folder of font metrics
-        //$fontcache  folder of runtime created php serialized version of font metrics.
-        //            If this is not given, the same folder as the font metrics will be used.
-        //            Storing and reusing serialized versions improves speed much
-
-        $this->addMessage("openFont: $font - $name");
-
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
-            $metrics_name = "$name.afm";
-        } else {
-            $metrics_name = "$name.ufm";
-        }
-
-        $cache_name = "$metrics_name.php";
-        $this->addMessage("metrics: $metrics_name, cache: $cache_name");
-
-        if (file_exists($fontcache . '/' . $cache_name)) {
-            $this->addMessage("openFont: php file exists $fontcache/$cache_name");
-            $this->fonts[$font] = require($fontcache . '/' . $cache_name);
-
-            if (!isset($this->fonts[$font]['_version_']) || $this->fonts[$font]['_version_'] != $this->fontcacheVersion) {
-                // if the font file is old, then clear it out and prepare for re-creation
-                $this->addMessage('openFont: clear out, make way for new version.');
-                $this->fonts[$font] = null;
-                unset($this->fonts[$font]);
-            }
-        } else {
-            $old_cache_name = "php_$metrics_name";
-            if (file_exists($fontcache . '/' . $old_cache_name)) {
-                $this->addMessage(
-                    "openFont: php file doesn't exist $fontcache/$cache_name, creating it from the old format"
-                );
-                $old_cache = file_get_contents($fontcache . '/' . $old_cache_name);
-                file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . $old_cache . ';');
-
-                $this->openFont($font);
-                return;
-            }
-        }
-
-        if (!isset($this->fonts[$font]) && file_exists($dir . $metrics_name)) {
-            // then rebuild the php_<font>.afm file from the <font>.afm file
-            $this->addMessage("openFont: build php file from $dir$metrics_name");
-            $data = [];
-
-            // 20 => 'space'
-            $data['codeToName'] = [];
-
-            // Since we're not going to enable Unicode for the core fonts we need to use a font-based
-            // setting for Unicode support rather than a global setting.
-            $data['isUnicode'] = (strtolower(substr($metrics_name, -3)) !== 'afm');
-
-            $cidtogid = '';
-            if ($data['isUnicode']) {
-                $cidtogid = str_pad('', 256 * 256 * 2, "\x00");
-            }
-
-            $file = file($dir . $metrics_name);
-
-            foreach ($file as $rowA) {
-                $row = trim($rowA);
-                $pos = strpos($row, ' ');
-
-                if ($pos) {
-                    // then there must be some keyword
-                    $key = substr($row, 0, $pos);
-                    switch ($key) {
-                        case 'FontName':
-                        case 'FullName':
-                        case 'FamilyName':
-                        case 'PostScriptName':
-                        case 'Weight':
-                        case 'ItalicAngle':
-                        case 'IsFixedPitch':
-                        case 'CharacterSet':
-                        case 'UnderlinePosition':
-                        case 'UnderlineThickness':
-                        case 'Version':
-                        case 'EncodingScheme':
-                        case 'CapHeight':
-                        case 'XHeight':
-                        case 'Ascender':
-                        case 'Descender':
-                        case 'StdHW':
-                        case 'StdVW':
-                        case 'StartCharMetrics':
-                        case 'FontHeightOffset': // OAR - Added so we can offset the height calculation of a Windows font.  Otherwise it's too big.
-                            $data[$key] = trim(substr($row, $pos));
-                            break;
-
-                        case 'FontBBox':
-                            $data[$key] = explode(' ', trim(substr($row, $pos)));
-                            break;
-
-                        //C 39 ; WX 222 ; N quoteright ; B 53 463 157 718 ;
-                        case 'C': // Found in AFM files
-                            $bits = explode(';', trim($row));
-                            $dtmp = ['C' => null, 'N' => null, 'WX' => null, 'B' => []];
-
-                            foreach ($bits as $bit) {
-                                $bits2 = explode(' ', trim($bit));
-                                if (mb_strlen($bits2[0], '8bit') == 0) {
-                                    continue;
-                                }
-
-                                if (count($bits2) > 2) {
-                                    $dtmp[$bits2[0]] = [];
-                                    for ($i = 1; $i < count($bits2); $i++) {
-                                        $dtmp[$bits2[0]][] = $bits2[$i];
-                                    }
-                                } else {
-                                    if (count($bits2) == 2) {
-                                        $dtmp[$bits2[0]] = $bits2[1];
-                                    }
-                                }
-                            }
-
-                            $c = (int)$dtmp['C'];
-                            $n = $dtmp['N'];
-                            $width = floatval($dtmp['WX']);
-
-                            if ($c >= 0) {
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
-                                    $data['codeToName'][$c] = $n;
-                                }
-                                $data['C'][$c] = $width;
-                            } elseif (isset($n)) {
-                                $data['C'][$n] = $width;
-                            }
-
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
-                                $data['MissingWidth'] = $width;
-                            }
-
-                            break;
-
-                        // U 827 ; WX 0 ; N squaresubnosp ; G 675 ;
-                        case 'U': // Found in UFM files
-                            if (!$data['isUnicode']) {
-                                break;
-                            }
-
-                            $bits = explode(';', trim($row));
-                            $dtmp = ['G' => null, 'N' => null, 'U' => null, 'WX' => null];
-
-                            foreach ($bits as $bit) {
-                                $bits2 = explode(' ', trim($bit));
-                                if (mb_strlen($bits2[0], '8bit') === 0) {
-                                    continue;
-                                }
-
-                                if (count($bits2) > 2) {
-                                    $dtmp[$bits2[0]] = [];
-                                    for ($i = 1; $i < count($bits2); $i++) {
-                                        $dtmp[$bits2[0]][] = $bits2[$i];
-                                    }
-                                } else {
-                                    if (count($bits2) == 2) {
-                                        $dtmp[$bits2[0]] = $bits2[1];
-                                    }
-                                }
-                            }
-
-                            $c = (int)$dtmp['U'];
-                            $n = $dtmp['N'];
-                            $glyph = $dtmp['G'];
-                            $width = floatval($dtmp['WX']);
-
-                            if ($c >= 0) {
-                                // Set values in CID to GID map
-                                if ($c >= 0 && $c < 0xFFFF && $glyph) {
-                                    $cidtogid[$c * 2] = chr($glyph >> 8);
-                                    $cidtogid[$c * 2 + 1] = chr($glyph & 0xFF);
-                                }
-
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
-                                    $data['codeToName'][$c] = $n;
-                                }
-                                $data['C'][$c] = $width;
-                            } elseif (isset($n)) {
-                                $data['C'][$n] = $width;
-                            }
-
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
-                                $data['MissingWidth'] = $width;
-                            }
-
-                            break;
-
-                        case 'KPX':
-                            break; // don't include them as they are not used yet
-                            //KPX Adieresis yacute -40
-                            /*$bits = explode(' ', trim($row));
+				$res = "\n$id 0 obj\n";
+				$res .= "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
+				$res .= "stream\n" . $stream . "\nendstream" . "\nendobj";;
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a font descriptor, needed for including additional fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_fontDescriptor($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'fontDescriptor', 'info' => $options];
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /FontDescriptor\n";
+				foreach ($o['info'] as $label => $value) {
+					switch ($label) {
+						case 'Ascent':
+						case 'CapHeight':
+						case 'Descent':
+						case 'Flags':
+						case 'ItalicAngle':
+						case 'StemV':
+						case 'AvgWidth':
+						case 'Leading':
+						case 'MaxWidth':
+						case 'MissingWidth':
+						case 'StemH':
+						case 'XHeight':
+						case 'CharSet':
+							if (mb_strlen($value, '8bit')) {
+								$res .= "/$label $value\n";
+							}
+
+							break;
+						case 'FontFile':
+						case 'FontFile2':
+						case 'FontFile3':
+							$res .= "/$label $value 0 R\n";
+							break;
+
+						case 'FontBBox':
+							$res .= "/$label [$value[0] $value[1] $value[2] $value[3]]\n";
+							break;
+
+						case 'FontName':
+							$res .= "/$label /$value\n";
+							break;
+					}
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * the font encoding
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_fontEncoding($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				// the options array should contain 'differences' and maybe 'encoding'
+				$this->objects[$id] = ['t' => 'fontEncoding', 'info' => $options];
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Encoding\n";
+				if (!isset($o['info']['encoding'])) {
+					$o['info']['encoding'] = 'WinAnsiEncoding';
+				}
+
+				if ($o['info']['encoding'] !== 'none') {
+					$res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
+				}
+
+				$res .= "/Differences \n[";
+
+				$onum = -100;
+
+				foreach ($o['info']['differences'] as $num => $label) {
+					if ($num != $onum + 1) {
+						// we cannot make use of consecutive numbering
+						$res .= "\n$num /$label";
+					} else {
+						$res .= " /$label";
+					}
+
+					$onum = $num;
+				}
+
+				$res .= "\n]\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a descendent cid font, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return null|string
+	 */
+	protected function o_fontDescendentCID($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'fontDescendentCID', 'info' => $options];
+
+				// we need a CID system info section
+				$cidSystemInfoId = ++$this->numObj;
+				$this->o_cidSystemInfo($cidSystemInfoId, 'new');
+				$this->objects[$id]['info']['cidSystemInfo'] = $cidSystemInfoId;
+
+				// and a CID to GID map
+				$cidToGidMapId = ++$this->numObj;
+				$this->o_fontGIDtoCIDMap($cidToGidMapId, 'new', $options);
+				$this->objects[$id]['info']['cidToGidMap'] = $cidToGidMapId;
+				break;
+
+			case 'add':
+				foreach ($options as $k => $v) {
+					switch ($k) {
+						case 'BaseFont':
+							$o['info']['name'] = $v;
+							break;
+
+						case 'FirstChar':
+						case 'LastChar':
+						case 'MissingWidth':
+						case 'FontDescriptor':
+						case 'SubType':
+							$this->addMessage("o_fontDescendentCID $k : $v");
+							$o['info'][$k] = $v;
+							break;
+					}
+				}
+
+				// pass values down to cid to gid map
+				$this->o_fontGIDtoCIDMap($o['info']['cidToGidMap'], 'add', $options);
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n";
+				$res .= "<</Type /Font\n";
+				$res .= "/Subtype /CIDFontType2\n";
+				$res .= "/BaseFont /" . $o['info']['name'] . "\n";
+				$res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
+				//      if (isset($o['info']['FirstChar'])) {
+				//        $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
+				//      }
+
+				//      if (isset($o['info']['LastChar'])) {
+				//        $res.= "/LastChar ".$o['info']['LastChar']."\n";
+				//      }
+				if (isset($o['info']['FontDescriptor'])) {
+					$res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+				}
+
+				if (isset($o['info']['MissingWidth'])) {
+					$res .= "/DW " . $o['info']['MissingWidth'] . "\n";
+				}
+
+				if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
+					$cid_widths = &$this->fonts[$o['info']['fontFileName']]['CIDWidths'];
+					$w = '';
+					foreach ($cid_widths as $cid => $width) {
+						$w .= "$cid [$width] ";
+					}
+					$res .= "/W [$w]\n";
+				}
+
+				$res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
+				$res .= ">>\n";
+				$res .= "endobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * CID system info section, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @return null|string
+	 */
+	protected function o_cidSystemInfo($id, $action)
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't' => 'cidSystemInfo'
+				];
+				break;
+			case 'add':
+				break;
+			case 'out':
+				$ordering = 'UCS';
+				$registry = 'Adobe';
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$ordering = $this->ARC4($ordering);
+					$registry = $this->ARC4($registry);
+				}
+
+
+				$res = "\n$id 0 obj\n";
+
+				$res .= '<</Registry (' . $registry . ")\n"; // A string identifying an issuer of character collections
+				$res .= '/Ordering (' . $ordering . ")\n"; // A string that uniquely names a character collection issued by a specific registry
+				$res .= "/Supplement 0\n"; // The supplement number of the character collection.
+				$res .= ">>";
+
+				$res .= "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a font glyph to character map, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_fontGIDtoCIDMap($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'fontGIDtoCIDMap', 'info' => $options];
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n";
+				$fontFileName = $o['info']['fontFileName'];
+				$tmp = $this->fonts[$fontFileName]['CIDtoGID'] = base64_decode($this->fonts[$fontFileName]['CIDtoGID']);
+
+				$compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
+					$this->fonts[$fontFileName]['CIDtoGID_Compressed'];
+
+				if (!$compressed && isset($o['raw'])) {
+					$res .= $tmp;
+				} else {
+					$res .= "<<";
+
+					if (!$compressed && $this->compressionReady && $this->options['compression']) {
+						// then implement ZLIB based compression on this content stream
+						$compressed = true;
+						$tmp = gzcompress($tmp, 6);
+					}
+					if ($compressed) {
+						$res .= "\n/Filter /FlateDecode";
+					}
+
+					if ($this->encrypted) {
+						$this->encryptInit($id);
+						$tmp = $this->ARC4($tmp);
+					}
+
+					$res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
+				}
+
+				$res .= "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * the document procset, solves some problems with printing to old PS printers
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_procset($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'procset', 'info' => ['PDF' => 1, 'Text' => 1]];
+				$this->o_pages($this->currentNode, 'procset', $id);
+				$this->procsetObjectId = $id;
+				break;
+
+			case 'add':
+				// this is to add new items to the procset list, despite the fact that this is considered
+				// obsolete, the items are required for printing to some postscript printers
+				switch ($options) {
+					case 'ImageB':
+					case 'ImageC':
+					case 'ImageI':
+						$o['info'][$options] = 1;
+						break;
+				}
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n[";
+				foreach ($o['info'] as $label => $val) {
+					$res .= "/$label ";
+				}
+				$res .= "]\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * define the document information
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_info($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->infoObject = $id;
+				$date = 'D:' . @date('Ymd');
+				$this->objects[$id] = [
+					't'    => 'info',
+					'info' => [
+						'Producer'      => 'CPDF (dompdf)',
+						'CreationDate' => $date
+					]
+				];
+				break;
+			case 'Title':
+			case 'Author':
+			case 'Subject':
+			case 'Keywords':
+			case 'Creator':
+			case 'Producer':
+			case 'CreationDate':
+			case 'ModDate':
+			case 'Trapped':
+				$this->objects[$id]['info'][$action] = $options;
+				break;
+
+			case 'out':
+				$encrypted = $this->encrypted;
+				if ($encrypted) {
+					$this->encryptInit($id);
+				}
+
+				$res = "\n$id 0 obj\n<<\n";
+				$o = &$this->objects[$id];
+				foreach ($o['info'] as $k => $v) {
+					$res .= "/$k (";
+
+					// dates must be outputted as-is, without Unicode transformations
+					if ($k !== 'CreationDate' && $k !== 'ModDate') {
+						$v = $this->filterText($v, true, false);
+					}
+
+					if ($encrypted) {
+						$v = $this->ARC4($v);
+					}
+
+					$res .= $v;
+					$res .= ")\n";
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an action object, used to link to URLS initially
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_action($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				if (is_array($options)) {
+					$this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => $options['type']];
+				} else {
+					// then assume a URI action
+					$this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => 'URI'];
+				}
+				break;
+
+			case 'out':
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+				}
+
+				$res = "\n$id 0 obj\n<< /Type /Action";
+				switch ($o['type']) {
+					case 'ilink':
+						if (!isset($this->destinations[(string)$o['info']['label']])) {
+							break;
+						}
+
+						// there will be an 'label' setting, this is the name of the destination
+						$res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
+						break;
+
+					case 'URI':
+						$res .= "\n/S /URI\n/URI (";
+						if ($this->encrypted) {
+							$res .= $this->filterText($this->ARC4($o['info']), false, false);
+						} else {
+							$res .= $this->filterText($o['info'], false, false);
+						}
+
+						$res .= ")";
+						break;
+				}
+
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an annotation object, this will add an annotation to the current page.
+	 * initially will support just link annotations
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_annotation($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				// add the annotation to the current page
+				$pageId = $this->currentPage;
+				$this->o_page($pageId, 'annot', $id);
+
+				// and add the action object which is going to be required
+				switch ($options['type']) {
+					case 'link':
+						$this->objects[$id] = ['t' => 'annotation', 'info' => $options];
+						$this->numObj++;
+						$this->o_action($this->numObj, 'new', $options['url']);
+						$this->objects[$id]['info']['actionId'] = $this->numObj;
+						break;
+
+					case 'ilink':
+						// this is to a named internal link
+						$label = $options['label'];
+						$this->objects[$id] = ['t' => 'annotation', 'info' => $options];
+						$this->numObj++;
+						$this->o_action($this->numObj, 'new', ['type' => 'ilink', 'label' => $label]);
+						$this->objects[$id]['info']['actionId'] = $this->numObj;
+						break;
+				}
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Annot";
+				switch ($o['info']['type']) {
+					case 'link':
+					case 'ilink':
+						$res .= "\n/Subtype /Link";
+						break;
+				}
+				$res .= "\n/A " . $o['info']['actionId'] . " 0 R";
+				$res .= "\n/Border [0 0 0]";
+				$res .= "\n/H /I";
+				$res .= "\n/Rect [ ";
+
+				foreach ($o['info']['rect'] as $v) {
+					$res .= sprintf("%.4F ", $v);
+				}
+
+				$res .= "]";
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a page object, it also creates a contents object to hold its contents
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_page($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->numPages++;
+				$this->objects[$id] = [
+					't'    => 'page',
+					'info' => [
+						'parent'  => $this->currentNode,
+						'pageNum' => $this->numPages,
+						'mediaBox' => $this->objects[$this->currentNode]['info']['mediaBox']
+					]
+				];
+
+				if (is_array($options)) {
+					// then this must be a page insertion, array should contain 'rid','pos'=[before|after]
+					$options['id'] = $id;
+					$this->o_pages($this->currentNode, 'page', $options);
+				} else {
+					$this->o_pages($this->currentNode, 'page', $id);
+				}
+
+				$this->currentPage = $id;
+				//make a contents object to go with this page
+				$this->numObj++;
+				$this->o_contents($this->numObj, 'new', $id);
+				$this->currentContents = $this->numObj;
+				$this->objects[$id]['info']['contents'] = [];
+				$this->objects[$id]['info']['contents'][] = $this->numObj;
+
+				$match = ($this->numPages % 2 ? 'odd' : 'even');
+				foreach ($this->addLooseObjects as $oId => $target) {
+					if ($target === 'all' || $match === $target) {
+						$this->objects[$id]['info']['contents'][] = $oId;
+					}
+				}
+				break;
+
+			case 'content':
+				$o['info']['contents'][] = $options;
+				break;
+
+			case 'annot':
+				// add an annotation to this page
+				if (!isset($o['info']['annot'])) {
+					$o['info']['annot'] = [];
+				}
+
+				// $options should contain the id of the annotation dictionary
+				$o['info']['annot'][] = $options;
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Page";
+				if (isset($o['info']['mediaBox'])) {
+					$tmp = $o['info']['mediaBox'];
+					$res .= "\n/MediaBox [" . sprintf(
+							'%.3F %.3F %.3F %.3F',
+							$tmp[0],
+							$tmp[1],
+							$tmp[2],
+							$tmp[3]
+						) . ']';
+				}
+				$res .= "\n/Parent " . $o['info']['parent'] . " 0 R";
+
+				if (isset($o['info']['annot'])) {
+					$res .= "\n/Annots [";
+					foreach ($o['info']['annot'] as $aId) {
+						$res .= " $aId 0 R";
+					}
+					$res .= " ]";
+				}
+
+				$count = count($o['info']['contents']);
+				if ($count == 1) {
+					$res .= "\n/Contents " . $o['info']['contents'][0] . " 0 R";
+				} else {
+					if ($count > 1) {
+						$res .= "\n/Contents [\n";
+
+						// reverse the page contents so added objects are below normal content
+						//foreach (array_reverse($o['info']['contents']) as $cId) {
+						// Back to normal now that I've got transparency working --Benj
+						foreach ($o['info']['contents'] as $cId) {
+							$res .= "$cId 0 R\n";
+						}
+						$res .= "]";
+					}
+				}
+
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * the contents objects hold all of the content which appears on pages
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return null|string
+	 */
+	protected function o_contents($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'contents', 'c' => '', 'info' => []];
+				if (mb_strlen($options, '8bit') && intval($options)) {
+					// then this contents is the primary for a page
+					$this->objects[$id]['onPage'] = $options;
+				} else {
+					if ($options === 'raw') {
+						// then this page contains some other type of system object
+						$this->objects[$id]['raw'] = 1;
+					}
+				}
+				break;
+
+			case 'add':
+				// add more options to the declaration
+				foreach ($options as $k => $v) {
+					$o['info'][$k] = $v;
+				}
+
+			case 'out':
+				$tmp = $o['c'];
+				$res = "\n$id 0 obj\n";
+
+				if (isset($this->objects[$id]['raw'])) {
+					$res .= $tmp;
+				} else {
+					$res .= "<<";
+					if ($this->compressionReady && $this->options['compression']) {
+						// then implement ZLIB based compression on this content stream
+						$res .= " /Filter /FlateDecode";
+						$tmp = gzcompress($tmp, 6);
+					}
+
+					if ($this->encrypted) {
+						$this->encryptInit($id);
+						$tmp = $this->ARC4($tmp);
+					}
+
+					foreach ($o['info'] as $k => $v) {
+						$res .= "\n/$k $v";
+					}
+
+					$res .= "\n/Length " . mb_strlen($tmp, '8bit') . " >>\nstream\n$tmp\nendstream";
+				}
+
+				$res .= "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @return string|null
+	 */
+	protected function o_embedjs($id, $action)
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'embedjs',
+					'info' => [
+						'Names' => '[(EmbeddedJS) ' . ($id + 1) . ' 0 R]'
+					]
+				];
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< ";
+				foreach ($o['info'] as $k => $v) {
+					$res .= "\n/$k $v";
+				}
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @param string $code
+	 * @return null|string
+	 */
+	protected function o_javascript($id, $action, $code = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'javascript',
+					'info' => [
+						'S'  => '/JavaScript',
+						'JS' => '(' . $this->filterText($code, true, false) . ')',
+					]
+				];
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< ";
+
+				foreach ($o['info'] as $k => $v) {
+					$res .= "\n/$k $v";
+				}
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an image object, will be an XObject in the document, includes description and data
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_image($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				// make the new object
+				$this->objects[$id] = ['t' => 'image', 'data' => &$options['data'], 'info' => []];
+
+				$info =& $this->objects[$id]['info'];
+
+				$info['Type'] = '/XObject';
+				$info['Subtype'] = '/Image';
+				$info['Width'] = $options['iw'];
+				$info['Height'] = $options['ih'];
+
+				if (isset($options['masked']) && $options['masked']) {
+					$info['SMask'] = ($this->numObj - 1) . ' 0 R';
+				}
+
+				if (!isset($options['type']) || $options['type'] === 'jpg') {
+					if (!isset($options['channels'])) {
+						$options['channels'] = 3;
+					}
+
+					switch ($options['channels']) {
+						case 1:
+							$info['ColorSpace'] = '/DeviceGray';
+							break;
+						case 4:
+							$info['ColorSpace'] = '/DeviceCMYK';
+							break;
+						default:
+							$info['ColorSpace'] = '/DeviceRGB';
+							break;
+					}
+
+					if ($info['ColorSpace'] === '/DeviceCMYK') {
+						$info['Decode'] = '[1 0 1 0 1 0 1 0]';
+					}
+
+					$info['Filter'] = '/DCTDecode';
+					$info['BitsPerComponent'] = 8;
+				} else {
+					if ($options['type'] === 'png') {
+						$info['Filter'] = '/FlateDecode';
+						$info['DecodeParms'] = '<< /Predictor 15 /Colors ' . $options['ncolor'] . ' /Columns ' . $options['iw'] . ' /BitsPerComponent ' . $options['bitsPerComponent'] . '>>';
+
+						if ($options['isMask']) {
+							$info['ColorSpace'] = '/DeviceGray';
+						} else {
+							if (mb_strlen($options['pdata'], '8bit')) {
+								$tmp = ' [ /Indexed /DeviceRGB ' . (mb_strlen($options['pdata'], '8bit') / 3 - 1) . ' ';
+								$this->numObj++;
+								$this->o_contents($this->numObj, 'new');
+								$this->objects[$this->numObj]['c'] = $options['pdata'];
+								$tmp .= $this->numObj . ' 0 R';
+								$tmp .= ' ]';
+								$info['ColorSpace'] = $tmp;
+
+								if (isset($options['transparency'])) {
+									$transparency = $options['transparency'];
+									switch ($transparency['type']) {
+										case 'indexed':
+											$tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+											$info['Mask'] = $tmp;
+											break;
+
+										case 'color-key':
+											$tmp = ' [ ' .
+												$transparency['r'] . ' ' . $transparency['r'] .
+												$transparency['g'] . ' ' . $transparency['g'] .
+												$transparency['b'] . ' ' . $transparency['b'] .
+												' ] ';
+											$info['Mask'] = $tmp;
+											break;
+									}
+								}
+							} else {
+								if (isset($options['transparency'])) {
+									$transparency = $options['transparency'];
+
+									switch ($transparency['type']) {
+										case 'indexed':
+											$tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+											$info['Mask'] = $tmp;
+											break;
+
+										case 'color-key':
+											$tmp = ' [ ' .
+												$transparency['r'] . ' ' . $transparency['r'] . ' ' .
+												$transparency['g'] . ' ' . $transparency['g'] . ' ' .
+												$transparency['b'] . ' ' . $transparency['b'] .
+												' ] ';
+											$info['Mask'] = $tmp;
+											break;
+									}
+								}
+								$info['ColorSpace'] = '/' . $options['color'];
+							}
+						}
+
+						$info['BitsPerComponent'] = $options['bitsPerComponent'];
+					}
+				}
+
+				// assign it a place in the named resource dictionary as an external object, according to
+				// the label passed in with it.
+				$this->o_pages($this->currentNode, 'xObject', ['label' => $options['label'], 'objNum' => $id]);
+
+				// also make sure that we have the right procset object for it.
+				$this->o_procset($this->procsetObjectId, 'add', 'ImageC');
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$tmp = &$o['data'];
+				$res = "\n$id 0 obj\n<<";
+
+				foreach ($o['info'] as $k => $v) {
+					$res .= "\n/$k $v";
+				}
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$tmp = $this->ARC4($tmp);
+				}
+
+				$res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * graphics state object
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_extGState($id, $action, $options = "")
+	{
+		static $valid_params = [
+			"LW",
+			"LC",
+			"LC",
+			"LJ",
+			"ML",
+			"D",
+			"RI",
+			"OP",
+			"op",
+			"OPM",
+			"Font",
+			"BG",
+			"BG2",
+			"UCR",
+			"TR",
+			"TR2",
+			"HT",
+			"FL",
+			"SM",
+			"SA",
+			"BM",
+			"SMask",
+			"CA",
+			"ca",
+			"AIS",
+			"TK"
+		];
+
+		switch ($action) {
+			case "new":
+				$this->objects[$id] = ['t' => 'extGState', 'info' => $options];
+
+				// Tell the pages about the new resource
+				$this->numStates++;
+				$this->o_pages($this->currentNode, 'extGState', ["objNum" => $id, "stateNum" => $this->numStates]);
+				break;
+
+			case "out":
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< /Type /ExtGState\n";
+
+				foreach ($o["info"] as $k => $v) {
+					if (!in_array($k, $valid_params)) {
+						continue;
+					}
+					$res .= "/$k $v\n";
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param integer $id
+	 * @param string $action
+	 * @param mixed $options
+	 * @return string
+	 */
+	protected function o_xobject($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'xobject', 'info' => $options, 'c' => ''];
+				break;
+
+			case 'procset':
+				$this->objects[$id]['procset'] = $options;
+				break;
+
+			case 'font':
+				$this->objects[$id]['fonts'][$options['fontNum']] = [
+				  'objNum' => $options['objNum'],
+				  'fontNum' => $options['fontNum']
+				];
+				break;
+
+			case 'xObject':
+				$this->objects[$id]['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< /Type /XObject\n";
+
+				foreach ($o["info"] as $k => $v) {
+					switch($k)
+					{
+						case 'Subtype':
+							$res .= "/Subtype /$v\n";
+							break;
+						case 'bbox':
+							$res .= "/BBox [";
+							foreach ($v as $value) {
+								$res .= sprintf("%.4F ", $value);
+							}
+							$res .= "]\n";
+							break;
+						default:
+							$res .= "/$k $v\n";
+							break;
+					}
+				}
+				$res .= "/Matrix[1.0 0.0 0.0 1.0 0.0 0.0]\n";
+
+				$res .= "/Resources <<";
+				if (isset($o['procset'])) {
+					$res .= "\n/ProcSet " . $o['procset'] . " 0 R";
+				} else {
+					$res .= "\n/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]";
+				}
+				if (isset($o['fonts']) && count($o['fonts'])) {
+					$res .= "\n/Font << ";
+					foreach ($o['fonts'] as $finfo) {
+						$res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+					}
+					$res .= "\n>>";
+				}
+				if (isset($o['xObjects']) && count($o['xObjects'])) {
+					$res .= "\n/XObject << ";
+					foreach ($o['xObjects'] as $finfo) {
+						$res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+					}
+					$res .= "\n>>";
+				}
+				$res .= "\n>>\n";
+
+				$tmp = $o["c"];
+				if ($this->compressionReady && $this->options['compression']) {
+					// then implement ZLIB based compression on this content stream
+					$res .= " /Filter /FlateDecode\n";
+					$tmp = gzcompress($tmp, 6);
+				}
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$tmp = $this->ARC4($tmp);
+				}
+
+				$res .= "/Length " . mb_strlen($tmp, '8bit') . " >>\n";
+				$res .= "stream\n" . $tmp . "\nendstream" . "\nendobj";;
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_acroform($id, $action, $options = '')
+	{
+		switch ($action) {
+			case "new":
+				$this->o_catalog($this->catalogId, 'acroform', $id);
+				$this->objects[$id] = array('t' => 'acroform', 'info' => $options);
+				break;
+
+			case 'addfield':
+				$this->objects[$id]['info']['Fields'][] = $options;
+				break;
+
+			case 'font':
+				$this->objects[$id]['fonts'][$options['fontNum']] = [
+				  'objNum' => $options['objNum'],
+				  'fontNum' => $options['fontNum']
+				];
+				break;
+
+			case "out":
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<<";
+
+				foreach ($o["info"] as $k => $v) {
+					switch($k) {
+						case 'Fields':
+							$res .= " /Fields [";
+							foreach ($v as $i) {
+								$res .= "$i 0 R ";
+							}
+							$res .= "]\n";
+							break;
+						default:
+							$res .= "/$k $v\n";
+					}
+				}
+
+				$res .= "/DR <<\n";
+				if (isset($o['fonts']) && count($o['fonts'])) {
+					$res .= "/Font << \n";
+					foreach ($o['fonts'] as $finfo) {
+						$res .= "/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R\n";
+					}
+					$res .= ">>\n";
+				}
+				$res .= ">>\n";
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @param mixed $options
+	 * @return null|string
+	 */
+	protected function o_field($id, $action, $options = '')
+	{
+		switch ($action) {
+			case "new":
+				$this->o_page($options['pageid'], 'annot', $id);
+				$this->o_acroform($this->acroFormId, 'addfield', $id);
+				$this->objects[$id] = ['t' => 'field', 'info' => $options];
+				break;
+
+			case 'set':
+				$this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
+				break;
+
+			case "out":
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< /Type /Annot /Subtype /Widget \n";
+
+				$encrypted = $this->encrypted;
+				if ($encrypted) {
+					$this->encryptInit($id);
+				}
+
+				foreach ($o["info"] as $k => $v) {
+					switch ($k) {
+						case 'pageid':
+							$res .= "/P $v 0 R\n";
+							break;
+						case 'value':
+							if ($encrypted) {
+								$v = $this->filterText($this->ARC4($v), false, false);
+							}
+							$res .= "/V ($v)\n";
+							break;
+						case 'refvalue':
+							$res .= "/V $v 0 R\n";
+							break;
+						case 'da':
+							if ($encrypted) {
+								$v = $this->filterText($this->ARC4($v), false, false);
+							}
+							$res .= "/DA ($v)\n";
+							break;
+						case 'options':
+							$res .= "/Opt [\n";
+							foreach ($v as $opt) {
+								if ($encrypted) {
+									$opt = $this->filterText($this->ARC4($opt), false, false);
+								}
+								$res .= "($opt)\n";
+							}
+							$res .= "]\n";
+							break;
+						case 'rect':
+							$res .= "/Rect [";
+							foreach ($v as $value) {
+								$res .= sprintf("%.4F ", $value);
+							}
+							$res .= "]\n";
+							break;
+						case 'appearance':
+							$res .= "/AP << ";
+							foreach ($v as $a => $ref) {
+								$res .= "/$a $ref 0 R ";
+							}
+							$res .= ">>\n";
+							break;
+						case 'T':
+							if($encrypted) {
+								$v = $this->filterText($this->ARC4($v), false, false);
+							}
+							$res .= "/T ($v)\n";
+							break;
+						default:
+							$res .= "/$k $v\n";
+					}
+
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_sig($id, $action, $options = '')
+	{
+		$sign_maxlen = $this->signatureMaxLen;
+
+		switch ($action) {
+			case "new":
+				$this->objects[$id] = array('t' => 'sig', 'info' => $options);
+				$this->byteRange[$id] = ['t' => 'sig'];
+				break;
+
+			case 'byterange':
+				$o = &$this->objects[$id];
+				$content =& $options['content'];
+				$content_len = strlen($content);
+				$pos = strpos($content, sprintf("/ByteRange [ %'.010d", $id));
+				$len = strlen('/ByteRange [ ********** ********** ********** ********** ]');
+				$rangeStartPos = $pos + $len + 1 + 10; // before '<'
+				$content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos ), $len, ' ', STR_PAD_RIGHT), $pos, $len);
+
+				$fuid = uniqid();
+				$tmpInput = $this->tmp . "/pkcs7.tmp." . $fuid . '.in';
+				$tmpOutput = $this->tmp . "/pkcs7.tmp." . $fuid . '.out';
+
+				if (file_put_contents($tmpInput, substr($content, 0, $rangeStartPos)) === false) {
+					throw new \Exception("Unable to write temporary file for signing.");
+				}
+				if (file_put_contents($tmpInput, substr($content, $rangeStartPos + 2 + $sign_maxlen),
+					FILE_APPEND) === false) {
+					throw new \Exception("Unable to write temporary file for signing.");
+				}
+
+				if (openssl_pkcs7_sign($tmpInput, $tmpOutput,
+					$o['info']['SignCert'],
+					array($o['info']['PrivKey'], $o['info']['Password']),
+					array(), PKCS7_BINARY | PKCS7_DETACHED) === false) {
+					throw new \Exception("Failed to prepare signature.");
+				}
+
+				$signature = file_get_contents($tmpOutput);
+
+				unlink($tmpInput);
+				unlink($tmpOutput);
+
+				$sign = substr($signature, (strpos($signature, "%%EOF\n\n------") + 13));
+				list($head, $signature) = explode("\n\n", $sign);
+
+				$signature = base64_decode(trim($signature));
+
+				$signature = current(unpack('H*', $signature));
+				$signature = str_pad($signature, $sign_maxlen, '0');
+				$siglen = strlen($signature);
+				if (strlen($signature) > $sign_maxlen) {
+					throw new \Exception("Signature length ($siglen) exceeds the $sign_maxlen limit.");
+				}
+
+				$content = substr_replace($content, $signature, $rangeStartPos + 1, $sign_maxlen);
+				break;
+
+			case "out":
+				$res = "\n$id 0 obj\n<<\n";
+
+				$encrypted = $this->encrypted;
+				if ($encrypted) {
+					$this->encryptInit($id);
+				}
+
+				$res .= "/ByteRange " .sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
+				$res .= "/Contents <" . str_pad('', $sign_maxlen, '0') . ">\n";
+				$res .= "/Filter/Adobe.PPKLite\n"; //PPKMS \n";
+				$res .= "/Type/Sig/SubFilter/adbe.pkcs7.detached \n";
+
+				$date = "D:" . substr_replace(date('YmdHisO'), '\'', -2, 0) . '\'';
+				if ($encrypted) {
+					$date = $this->ARC4($date);
+				}
+
+				$res .= "/M ($date)\n";
+				$res .= "/Prop_Build << /App << /Name /DomPDF >> /Filter << /Name /Adobe.PPKLite >> >>\n";
+
+				$o = &$this->objects[$id];
+				foreach ($o['info'] as $k => $v) {
+					switch($k) {
+						case 'Name':
+						case 'Location':
+						case 'Reason':
+						case 'ContactInfo':
+							if ($v !== null && $v !== '') {
+								$res .= "/$k (" .
+								  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v) . ") \n";
+							}
+							break;
+					}
+				}
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * encryption object.
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_encryption($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				// make the new object
+				$this->objects[$id] = ['t' => 'encryption', 'info' => $options];
+				$this->arc4_objnum = $id;
+				break;
+
+			case 'keys':
+				// figure out the additional parameters required
+				$pad = chr(0x28) . chr(0xBF) . chr(0x4E) . chr(0x5E) . chr(0x4E) . chr(0x75) . chr(0x8A) . chr(0x41)
+					. chr(0x64) . chr(0x00) . chr(0x4E) . chr(0x56) . chr(0xFF) . chr(0xFA) . chr(0x01) . chr(0x08)
+					. chr(0x2E) . chr(0x2E) . chr(0x00) . chr(0xB6) . chr(0xD0) . chr(0x68) . chr(0x3E) . chr(0x80)
+					. chr(0x2F) . chr(0x0C) . chr(0xA9) . chr(0xFE) . chr(0x64) . chr(0x53) . chr(0x69) . chr(0x7A);
+
+				$info = $this->objects[$id]['info'];
+
+				$len = mb_strlen($info['owner'], '8bit');
+
+				if ($len > 32) {
+					$owner = substr($info['owner'], 0, 32);
+				} else {
+					if ($len < 32) {
+						$owner = $info['owner'] . substr($pad, 0, 32 - $len);
+					} else {
+						$owner = $info['owner'];
+					}
+				}
+
+				$len = mb_strlen($info['user'], '8bit');
+				if ($len > 32) {
+					$user = substr($info['user'], 0, 32);
+				} else {
+					if ($len < 32) {
+						$user = $info['user'] . substr($pad, 0, 32 - $len);
+					} else {
+						$user = $info['user'];
+					}
+				}
+
+				$tmp = $this->md5_16($owner);
+				$okey = substr($tmp, 0, 5);
+				$this->ARC4_init($okey);
+				$ovalue = $this->ARC4($user);
+				$this->objects[$id]['info']['O'] = $ovalue;
+
+				// now make the u value, phew.
+				$tmp = $this->md5_16(
+					$user . $ovalue . chr($info['p']) . chr(255) . chr(255) . chr(255) . hex2bin($this->fileIdentifier)
+				);
+
+				$ukey = substr($tmp, 0, 5);
+				$this->ARC4_init($ukey);
+				$this->encryptionKey = $ukey;
+				$this->encrypted = true;
+				$uvalue = $this->ARC4($pad);
+				$this->objects[$id]['info']['U'] = $uvalue;
+				// initialize the arc4 array
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+
+				$res = "\n$id 0 obj\n<<";
+				$res .= "\n/Filter /Standard";
+				$res .= "\n/V 1";
+				$res .= "\n/R 2";
+				$res .= "\n/O (" . $this->filterText($o['info']['O'], false, false) . ')';
+				$res .= "\n/U (" . $this->filterText($o['info']['U'], false, false) . ')';
+				// and the p-value needs to be converted to account for the twos-complement approach
+				$o['info']['p'] = (($o['info']['p'] ^ 255) + 1) * -1;
+				$res .= "\n/P " . ($o['info']['p']);
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_indirect_references($id, $action, $options = null)
+	{
+		switch ($action) {
+			case 'new':
+			case 'add':
+				if ($id === 0) {
+					$id = ++$this->numObj;
+					$this->o_catalog($this->catalogId, 'names', $id);
+					$this->objects[$id] = ['t' => 'indirect_references', 'info' => $options];
+					$this->indirectReferenceId = $id;
+				} else {
+					$this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
+				}
+				break;
+			case 'out':
+				$res = "\n$id 0 obj << ";
+
+				foreach($this->objects[$id]['info'] as $referenceObjName => $referenceObjId) {
+					$res .= "/$referenceObjName $referenceObjId 0 R ";
+				}
+
+				$res .= ">> endobj";
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_names($id, $action, $options = null)
+	{
+		switch ($action) {
+			case 'new':
+			case 'add':
+				if ($id === 0) {
+					$id = ++$this->numObj;
+					$this->objects[$id] = ['t' => 'names', 'info' => [$options]];
+					$this->o_indirect_references($this->indirectReferenceId, 'add', ['EmbeddedFiles' => $id]);
+					$this->embeddedFilesId = $id;
+				} else {
+					$this->objects[$id]['info'][] = $options;
+				}
+				break;
+			case 'out':
+				$info = &$this->objects[$id]['info'];
+				$res = '';
+				if (count($info) > 0) {
+					$res = "\n$id 0 obj << /Names [ ";
+
+					if ($this->encrypted) {
+						$this->encryptInit($id);
+					}
+
+					foreach ($info as $entry) {
+						if ($this->encrypted) {
+							$filename = $this->ARC4($entry['filename']);
+						} else {
+							$filename = $entry['filename'];
+						}
+
+						$res .= "($filename) " . $entry['dict_reference'] . " 0 R ";
+					}
+
+					$res .= "] >> endobj";
+				}
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_embedded_file_dictionary($id, $action, $options = null)
+	{
+		switch ($action) {
+			case 'new':
+				$embeddedFileId = ++$this->numObj;
+				$options['embedded_reference'] = $embeddedFileId;
+				$this->objects[$id] = ['t' => 'embedded_file_dictionary', 'info' => $options];
+				$this->o_embedded_file($embeddedFileId, 'new', $options);
+				$options['dict_reference'] = $id;
+				$this->o_names($this->embeddedFilesId, 'add', $options);
+				break;
+			case 'out':
+				$info = &$this->objects[$id]['info'];
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$filename = $this->ARC4($info['filename']);
+					$description = $this->ARC4($info['description']);
+				} else {
+					$filename = $info['filename'];
+					$description = $info['description'];
+				}
+
+				$res = "\n$id 0 obj <</Type /Filespec /EF";
+				$res .= " <</F " . $info['embedded_reference'] . " 0 R >>";
+				$res .= " /F ($filename) /UF ($filename) /Desc ($description)";
+				$res .= " >> endobj";
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_embedded_file($id, $action, $options = null): ?string
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'embedded_file', 'info' => $options];
+				break;
+			case 'out':
+				$info = &$this->objects[$id]['info'];
+
+				if ($this->compressionReady) {
+					$filepath = $info['filepath'];
+					$checksum = md5_file($filepath);
+					$f = fopen($filepath, "rb");
+
+					$file_content_compressed = '';
+					$deflateContext = deflate_init(ZLIB_ENCODING_DEFLATE, ['level' => 6]);
+					while (($block = fread($f, 8192))) {
+						$file_content_compressed .= deflate_add($deflateContext, $block, ZLIB_NO_FLUSH);
+					}
+					$file_content_compressed .= deflate_add($deflateContext, '', ZLIB_FINISH);
+					$file_size_uncompressed = ftell($f);
+					fclose($f);
+				} else {
+					$file_content = file_get_contents($info['filepath']);
+					$file_size_uncompressed = mb_strlen($file_content, '8bit');
+					$checksum = md5($file_content);
+				}
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$checksum = $this->ARC4($checksum);
+					$file_content_compressed = $this->ARC4($file_content_compressed);
+				}
+				$file_size_compressed = mb_strlen($file_content_compressed, '8bit');
+
+				$res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>" .
+					" /Type/EmbeddedFile /Filter/FlateDecode" .
+					" /Length $file_size_compressed >> stream\n$file_content_compressed\nendstream\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * ARC4 functions
+	 * A series of function to implement ARC4 encoding in PHP
+	 */
+
+	/**
+	 * calculate the 16 byte version of the 128 bit md5 digest of the string
+	 *
+	 * @param $string
+	 * @return string
+	 */
+	function md5_16($string)
+	{
+		$tmp = md5($string);
+		$out = '';
+		for ($i = 0; $i <= 30; $i = $i + 2) {
+			$out .= chr(hexdec(substr($tmp, $i, 2)));
+		}
+
+		return $out;
+	}
+
+	/**
+	 * initialize the encryption for processing a particular object
+	 *
+	 * @param $id
+	 */
+	function encryptInit($id)
+	{
+		$tmp = $this->encryptionKey;
+		$hex = dechex($id);
+		if (mb_strlen($hex, '8bit') < 6) {
+			$hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')) . $hex;
+		}
+		$tmp .= chr(hexdec(substr($hex, 4, 2)))
+			. chr(hexdec(substr($hex, 2, 2)))
+			. chr(hexdec(substr($hex, 0, 2)))
+			. chr(0)
+			. chr(0)
+		;
+		$key = $this->md5_16($tmp);
+		$this->ARC4_init(substr($key, 0, 10));
+	}
+
+	/**
+	 * initialize the ARC4 encryption
+	 *
+	 * @param string $key
+	 */
+	function ARC4_init($key = '')
+	{
+		$this->arc4 = '';
+
+		// setup the control array
+		if (mb_strlen($key, '8bit') == 0) {
+			return;
+		}
+
+		$k = '';
+		while (mb_strlen($k, '8bit') < 256) {
+			$k .= $key;
+		}
+
+		$k = substr($k, 0, 256);
+		for ($i = 0; $i < 256; $i++) {
+			$this->arc4 .= chr($i);
+		}
+
+		$j = 0;
+
+		for ($i = 0; $i < 256; $i++) {
+			$t = $this->arc4[$i];
+			$j = ($j + ord($t) + ord($k[$i])) % 256;
+			$this->arc4[$i] = $this->arc4[$j];
+			$this->arc4[$j] = $t;
+		}
+	}
+
+	/**
+	 * ARC4 encrypt a text string
+	 *
+	 * @param $text
+	 * @return string
+	 */
+	function ARC4($text)
+	{
+		$len = mb_strlen($text, '8bit');
+		$a = 0;
+		$b = 0;
+		$c = $this->arc4;
+		$out = '';
+		for ($i = 0; $i < $len; $i++) {
+			$a = ($a + 1) % 256;
+			$t = $c[$a];
+			$b = ($b + ord($t)) % 256;
+			$c[$a] = $c[$b];
+			$c[$b] = $t;
+			$k = ord($c[(ord($c[$a]) + ord($c[$b])) % 256]);
+			$out .= chr(ord($text[$i]) ^ $k);
+		}
+
+		return $out;
+	}
+
+	/**
+	 * functions which can be called to adjust or add to the document
+	 */
+
+	/**
+	 * add a link in the document to an external URL
+	 *
+	 * @param $url
+	 * @param $x0
+	 * @param $y0
+	 * @param $x1
+	 * @param $y1
+	 */
+	function addLink($url, $x0, $y0, $x1, $y1)
+	{
+		$this->numObj++;
+		$info = ['type' => 'link', 'url' => $url, 'rect' => [$x0, $y0, $x1, $y1]];
+		$this->o_annotation($this->numObj, 'new', $info);
+	}
+
+	/**
+	 * add a link in the document to an internal destination (ie. within the document)
+	 *
+	 * @param $label
+	 * @param $x0
+	 * @param $y0
+	 * @param $x1
+	 * @param $y1
+	 */
+	function addInternalLink($label, $x0, $y0, $x1, $y1)
+	{
+		$this->numObj++;
+		$info = ['type' => 'ilink', 'label' => $label, 'rect' => [$x0, $y0, $x1, $y1]];
+		$this->o_annotation($this->numObj, 'new', $info);
+	}
+
+	/**
+	 * set the encryption of the document
+	 * can be used to turn it on and/or set the passwords which it will have.
+	 * also the functions that the user will have are set here, such as print, modify, add
+	 *
+	 * @param string $userPass
+	 * @param string $ownerPass
+	 * @param array $pc
+	 */
+	function setEncryption($userPass = '', $ownerPass = '', $pc = [])
+	{
+		$p = bindec("11000000");
+
+		$options = ['print' => 4, 'modify' => 8, 'copy' => 16, 'add' => 32];
+
+		foreach ($pc as $k => $v) {
+			if ($v && isset($options[$k])) {
+				$p += $options[$k];
+			} else {
+				if (isset($options[$v])) {
+					$p += $options[$v];
+				}
+			}
+		}
+
+		// implement encryption on the document
+		if ($this->arc4_objnum == 0) {
+			// then the block does not exist already, add it.
+			$this->numObj++;
+			if (mb_strlen($ownerPass) == 0) {
+				$ownerPass = $userPass;
+			}
+
+			$this->o_encryption($this->numObj, 'new', ['user' => $userPass, 'owner' => $ownerPass, 'p' => $p]);
+		}
+	}
+
+	/**
+	 * should be used for internal checks, not implemented as yet
+	 */
+	function checkAllHere()
+	{
+	}
+
+	/**
+	 * return the pdf stream as a string returned from the function
+	 *
+	 * @param bool $debug
+	 * @return string
+	 */
+	function output($debug = false)
+	{
+		if ($debug) {
+			// turn compression off
+			$this->options['compression'] = false;
+		}
+
+		if ($this->javascript) {
+			$this->numObj++;
+
+			$js_id = $this->numObj;
+			$this->o_embedjs($js_id, 'new');
+			$this->o_javascript(++$this->numObj, 'new', $this->javascript);
+
+			$id = $this->catalogId;
+
+			$this->o_indirect_references($this->indirectReferenceId, 'add', ['JavaScript' => $js_id]);
+		}
+
+		if ($this->fileIdentifier === '') {
+			$tmp = implode('', $this->objects[$this->infoObject]['info']);
+			$this->fileIdentifier = md5('DOMPDF' . __FILE__ . $tmp . microtime() . mt_rand());
+		}
+
+		if ($this->arc4_objnum) {
+			$this->o_encryption($this->arc4_objnum, 'keys');
+			$this->ARC4_init($this->encryptionKey);
+		}
+
+		$this->checkAllHere();
+
+		$xref = [];
+		$content = '%PDF-' . self::PDF_VERSION;
+		$pos = mb_strlen($content, '8bit');
+
+		// pre-process o_font objects before output of all objects
+		foreach ($this->objects as $k => $v) {
+			if ($v['t'] === 'font') {
+				$this->o_font($k, 'add');
+			}
+		}
+
+		foreach ($this->objects as $k => $v) {
+			$tmp = 'o_' . $v['t'];
+			$cont = $this->$tmp($k, 'out');
+			$content .= $cont;
+			$xref[] = $pos + 1; //+1 to account for \n at the start of each object
+			$pos += mb_strlen($cont, '8bit');
+		}
+
+		$content .= "\nxref\n0 " . (count($xref) + 1) . "\n0000000000 65535 f \n";
+
+		foreach ($xref as $p) {
+			$content .= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
+		}
+
+		$content .= "trailer\n<<\n" .
+			'/Size ' . (count($xref) + 1) . "\n" .
+			'/Root 1 0 R' . "\n" .
+			'/Info ' . $this->infoObject . " 0 R\n"
+		;
+
+		// if encryption has been applied to this document then add the marker for this dictionary
+		if ($this->arc4_objnum > 0) {
+			$content .= '/Encrypt ' . $this->arc4_objnum . " 0 R\n";
+		}
+
+		$content .= '/ID[<' . $this->fileIdentifier . '><' . $this->fileIdentifier . ">]\n";
+
+		// account for \n added at start of xref table
+		$pos++;
+
+		$content .= ">>\nstartxref\n$pos\n%%EOF\n";
+
+		if (count($this->byteRange) > 0) {
+			foreach ($this->byteRange as $k => $v) {
+				$tmp = 'o_' . $v['t'];
+				$this->$tmp($k, 'byterange', ['content' => &$content]);
+			}
+		}
+
+		return $content;
+	}
+
+	/**
+	 * initialize a new document
+	 * if this is called on an existing document results may be unpredictable, but the existing document would be lost at minimum
+	 * this function is called automatically by the constructor function
+	 *
+	 * @param array $pageSize
+	 */
+	private function newDocument($pageSize = [0, 0, 612, 792])
+	{
+		$this->numObj = 0;
+		$this->objects = [];
+
+		$this->numObj++;
+		$this->o_catalog($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_outlines($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_pages($this->numObj, 'new');
+
+		$this->o_pages($this->numObj, 'mediaBox', $pageSize);
+		$this->currentNode = 3;
+
+		$this->numObj++;
+		$this->o_procset($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_info($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_page($this->numObj, 'new');
+
+		// need to store the first page id as there is no way to get it to the user during
+		// startup
+		$this->firstPageId = $this->currentContents;
+	}
+
+	/**
+	 * open the font file and return a php structure containing it.
+	 * first check if this one has been done before and saved in a form more suited to php
+	 * note that if a php serialized version does not exist it will try and make one, but will
+	 * require write access to the directory to do it... it is MUCH faster to have these serialized
+	 * files.
+	 *
+	 * @param $font
+	 */
+	private function openFont($font)
+	{
+		// assume that $font contains the path and file but not the extension
+		$name = basename($font);
+		$dir = dirname($font) . '/';
+
+		$fontcache = $this->fontcache;
+		if ($fontcache == '') {
+			$fontcache = rtrim($dir, DIRECTORY_SEPARATOR."/\\");
+		}
+
+		//$name       filename without folder and extension of font metrics
+		//$dir        folder of font metrics
+		//$fontcache  folder of runtime created php serialized version of font metrics.
+		//            If this is not given, the same folder as the font metrics will be used.
+		//            Storing and reusing serialized versions improves speed much
+
+		$this->addMessage("openFont: $font - $name");
+
+		if (!$this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
+			$metrics_name = "$name.afm";
+		} else {
+			$metrics_name = "$name.ufm";
+		}
+
+		$cache_name = "$metrics_name.php";
+		$this->addMessage("metrics: $metrics_name, cache: $cache_name");
+
+		if (file_exists($fontcache . '/' . $cache_name)) {
+			$this->addMessage("openFont: php file exists $fontcache/$cache_name");
+			$this->fonts[$font] = require($fontcache . '/' . $cache_name);
+
+			if (!isset($this->fonts[$font]['_version_']) || $this->fonts[$font]['_version_'] != $this->fontcacheVersion) {
+				// if the font file is old, then clear it out and prepare for re-creation
+				$this->addMessage('openFont: clear out, make way for new version.');
+				$this->fonts[$font] = null;
+				unset($this->fonts[$font]);
+			}
+		} else {
+			$old_cache_name = "php_$metrics_name";
+			if (file_exists($fontcache . '/' . $old_cache_name)) {
+				$this->addMessage(
+					"openFont: php file doesn't exist $fontcache/$cache_name, creating it from the old format"
+				);
+				$old_cache = file_get_contents($fontcache . '/' . $old_cache_name);
+				file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . $old_cache . ';');
+
+				$this->openFont($font);
+				return;
+			}
+		}
+
+		if (!isset($this->fonts[$font]) && file_exists($dir . $metrics_name)) {
+			// then rebuild the php_<font>.afm file from the <font>.afm file
+			$this->addMessage("openFont: build php file from $dir$metrics_name");
+			$data = [];
+
+			// 20 => 'space'
+			$data['codeToName'] = [];
+
+			// Since we're not going to enable Unicode for the core fonts we need to use a font-based
+			// setting for Unicode support rather than a global setting.
+			$data['isUnicode'] = (strtolower(substr($metrics_name, -3)) !== 'afm');
+
+			$cidtogid = '';
+			if ($data['isUnicode']) {
+				$cidtogid = str_pad('', 256 * 256 * 2, "\x00");
+			}
+
+			$file = file($dir . $metrics_name);
+
+			foreach ($file as $rowA) {
+				$row = trim($rowA);
+				$pos = strpos($row, ' ');
+
+				if ($pos) {
+					// then there must be some keyword
+					$key = substr($row, 0, $pos);
+					switch ($key) {
+						case 'FontName':
+						case 'FullName':
+						case 'FamilyName':
+						case 'PostScriptName':
+						case 'Weight':
+						case 'ItalicAngle':
+						case 'IsFixedPitch':
+						case 'CharacterSet':
+						case 'UnderlinePosition':
+						case 'UnderlineThickness':
+						case 'Version':
+						case 'EncodingScheme':
+						case 'CapHeight':
+						case 'XHeight':
+						case 'Ascender':
+						case 'Descender':
+						case 'StdHW':
+						case 'StdVW':
+						case 'StartCharMetrics':
+						case 'FontHeightOffset': // OAR - Added so we can offset the height calculation of a Windows font.  Otherwise it's too big.
+							$data[$key] = trim(substr($row, $pos));
+							break;
+
+						case 'FontBBox':
+							$data[$key] = explode(' ', trim(substr($row, $pos)));
+							break;
+
+						//C 39 ; WX 222 ; N quoteright ; B 53 463 157 718 ;
+						case 'C': // Found in AFM files
+							$bits = explode(';', trim($row));
+							$dtmp = ['C' => null, 'N' => null, 'WX' => null, 'B' => []];
+
+							foreach ($bits as $bit) {
+								$bits2 = explode(' ', trim($bit));
+								if (mb_strlen($bits2[0], '8bit') == 0) {
+									continue;
+								}
+
+								if (count($bits2) > 2) {
+									$dtmp[$bits2[0]] = [];
+									for ($i = 1; $i < count($bits2); $i++) {
+										$dtmp[$bits2[0]][] = $bits2[$i];
+									}
+								} else {
+									if (count($bits2) == 2) {
+										$dtmp[$bits2[0]] = $bits2[1];
+									}
+								}
+							}
+
+							$c = (int)$dtmp['C'];
+							$n = $dtmp['N'];
+							$width = floatval($dtmp['WX']);
+
+							if ($c >= 0) {
+								if (!ctype_xdigit($n) || $c != hexdec($n)) {
+									$data['codeToName'][$c] = $n;
+								}
+								$data['C'][$c] = $width;
+							} elseif (isset($n)) {
+								$data['C'][$n] = $width;
+							}
+
+							if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+								$data['MissingWidth'] = $width;
+							}
+
+							break;
+
+						// U 827 ; WX 0 ; N squaresubnosp ; G 675 ;
+						case 'U': // Found in UFM files
+							if (!$data['isUnicode']) {
+								break;
+							}
+
+							$bits = explode(';', trim($row));
+							$dtmp = ['G' => null, 'N' => null, 'U' => null, 'WX' => null];
+
+							foreach ($bits as $bit) {
+								$bits2 = explode(' ', trim($bit));
+								if (mb_strlen($bits2[0], '8bit') === 0) {
+									continue;
+								}
+
+								if (count($bits2) > 2) {
+									$dtmp[$bits2[0]] = [];
+									for ($i = 1; $i < count($bits2); $i++) {
+										$dtmp[$bits2[0]][] = $bits2[$i];
+									}
+								} else {
+									if (count($bits2) == 2) {
+										$dtmp[$bits2[0]] = $bits2[1];
+									}
+								}
+							}
+
+							$c = (int)$dtmp['U'];
+							$n = $dtmp['N'];
+							$glyph = $dtmp['G'];
+							$width = floatval($dtmp['WX']);
+
+							if ($c >= 0) {
+								// Set values in CID to GID map
+								if ($c >= 0 && $c < 0xFFFF && $glyph) {
+									$cidtogid[$c * 2] = chr($glyph >> 8);
+									$cidtogid[$c * 2 + 1] = chr($glyph & 0xFF);
+								}
+
+								if (!ctype_xdigit($n) || $c != hexdec($n)) {
+									$data['codeToName'][$c] = $n;
+								}
+								$data['C'][$c] = $width;
+							} elseif (isset($n)) {
+								$data['C'][$n] = $width;
+							}
+
+							if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+								$data['MissingWidth'] = $width;
+							}
+
+							break;
+
+						case 'KPX':
+							break; // don't include them as they are not used yet
+							//KPX Adieresis yacute -40
+							/*$bits = explode(' ', trim($row));
                             $data['KPX'][$bits[1]][$bits[2]] = $bits[3];
                             break;*/
-                    }
-                }
-            }
-
-            if ($this->compressionReady && $this->options['compression']) {
-                // then implement ZLIB based compression on CIDtoGID string
-                $data['CIDtoGID_Compressed'] = true;
-                $cidtogid = gzcompress($cidtogid, 6);
-            }
-            $data['CIDtoGID'] = base64_encode($cidtogid);
-            $data['_version_'] = $this->fontcacheVersion;
-            $this->fonts[$font] = $data;
-
-            //Because of potential trouble with php safe mode, expect that the folder already exists.
-            //If not existing, this will hit performance because of missing cached results.
-            if (is_dir($fontcache) && is_writable($fontcache)) {
-                file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . var_export($data, true) . ';');
-            }
-            $data = null;
-        }
-
-        if (!isset($this->fonts[$font])) {
-            $this->addMessage("openFont: no font file found for $font. Do you need to run load_font.php?");
-        }
-
-        //pre_r($this->messages);
-    }
-
-    /**
-     * if the font is not loaded then load it and make the required object
-     * else just make it the current font
-     * the encoding array can contain 'encoding'=> 'none','WinAnsiEncoding','MacRomanEncoding' or 'MacExpertEncoding'
-     * note that encoding='none' will need to be used for symbolic fonts
-     * and 'differences' => an array of mappings between numbers 0->255 and character names.
-     *
-     * @param $fontName
-     * @param string $encoding
-     * @param bool $set
-     * @param bool $isSubsetting
-     * @return int
-     * @throws FontNotFoundException
-     */
-    function selectFont($fontName, $encoding = '', $set = true, $isSubsetting = true)
-    {
-        if ($fontName === null || $fontName === '') {
-            return $this->currentFontNum;
-        }
-
-        $ext = substr($fontName, -4);
-        if ($ext === '.afm' || $ext === '.ufm') {
-            $fontName = substr($fontName, 0, mb_strlen($fontName) - 4);
-        }
-
-        if (!isset($this->fonts[$fontName])) {
-            $this->addMessage("selectFont: selecting - $fontName - $encoding, $set");
-
-            // load the file
-            $this->openFont($fontName);
-
-            if (isset($this->fonts[$fontName])) {
-                $this->numObj++;
-                $this->numFonts++;
-
-                $font = &$this->fonts[$fontName];
-
-                $name = basename($fontName);
-                $options = ['name' => $name, 'fontFileName' => $fontName, 'isSubsetting' => $isSubsetting];
-
-                if (is_array($encoding)) {
-                    // then encoding and differences might be set
-                    if (isset($encoding['encoding'])) {
-                        $options['encoding'] = $encoding['encoding'];
-                    }
-
-                    if (isset($encoding['differences'])) {
-                        $options['differences'] = $encoding['differences'];
-                    }
-                } else {
-                    if (mb_strlen($encoding, '8bit')) {
-                        // then perhaps only the encoding has been set
-                        $options['encoding'] = $encoding;
-                    }
-                }
-
-                $this->o_font($this->numObj, 'new', $options);
-
-                if (file_exists("$fontName.ttf")) {
-                    $fileSuffix = 'ttf';
-                } elseif (file_exists("$fontName.TTF")) {
-                    $fileSuffix = 'TTF';
-                } elseif (file_exists("$fontName.pfb")) {
-                    $fileSuffix = 'pfb';
-                } elseif (file_exists("$fontName.PFB")) {
-                    $fileSuffix = 'PFB';
-                } else {
-                    $fileSuffix = '';
-                }
-
-                $font['fileSuffix'] = $fileSuffix;
-
-                $font['fontNum'] = $this->numFonts;
-                $font['isSubsetting'] = $isSubsetting && $font['isUnicode'] && strtolower($fileSuffix) === 'ttf';
-
-                // also set the differences here, note that this means that these will take effect only the
-                //first time that a font is selected, else they are ignored
-                if (isset($options['differences'])) {
-                    $font['differences'] = $options['differences'];
-                }
-            }
-        }
-
-        if ($set && isset($this->fonts[$fontName])) {
-            // so if for some reason the font was not set in the last one then it will not be selected
-            $this->currentBaseFont = $fontName;
-
-            // the next lines mean that if a new font is selected, then the current text state will be
-            // applied to it as well.
-            $this->currentFont = $this->currentBaseFont;
-            $this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
-        }
-
-        return $this->currentFontNum;
-    }
-
-    /**
-     * sets up the current font, based on the font families, and the current text state
-     * note that this system is quite flexible, a bold-italic font can be completely different to a
-     * italic-bold font, and even bold-bold will have to be defined within the family to have meaning
-     * This function is to be called whenever the currentTextState is changed, it will update
-     * the currentFont setting to whatever the appropriate family one is.
-     * If the user calls selectFont themselves then that will reset the currentBaseFont, and the currentFont
-     * This function will change the currentFont to whatever it should be, but will not change the
-     * currentBaseFont.
-     */
-    private function setCurrentFont()
-    {
-        //   if (strlen($this->currentBaseFont) == 0){
-        //     // then assume an initial font
-        //     $this->selectFont($this->defaultFont);
-        //   }
-        //   $cf = substr($this->currentBaseFont,strrpos($this->currentBaseFont,'/')+1);
-        //   if (strlen($this->currentTextState)
-        //     && isset($this->fontFamilies[$cf])
-        //       && isset($this->fontFamilies[$cf][$this->currentTextState])){
-        //     // then we are in some state or another
-        //     // and this font has a family, and the current setting exists within it
-        //     // select the font, then return it
-        //     $nf = substr($this->currentBaseFont,0,strrpos($this->currentBaseFont,'/')+1).$this->fontFamilies[$cf][$this->currentTextState];
-        //     $this->selectFont($nf,'',0);
-        //     $this->currentFont = $nf;
-        //     $this->currentFontNum = $this->fonts[$nf]['fontNum'];
-        //   } else {
-        //     // the this font must not have the right family member for the current state
-        //     // simply assume the base font
-        $this->currentFont = $this->currentBaseFont;
-        $this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
-        //  }
-    }
-
-    /**
-     * function for the user to find out what the ID is of the first page that was created during
-     * startup - useful if they wish to add something to it later.
-     *
-     * @return int
-     */
-    function getFirstPageId()
-    {
-        return $this->firstPageId;
-    }
-
-    /**
-     * add content to the currently active object
-     *
-     * @param $content
-     */
-    private function addContent($content)
-    {
-        $this->objects[$this->currentContents]['c'] .= $content;
-    }
-
-    /**
-     * sets the color for fill operations
-     *
-     * @param $color
-     * @param bool $force
-     */
-    function setColor($color, $force = false)
-    {
-        $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
-
-        if (!$force && $this->currentColor == $new_color) {
-            return;
-        }
-
-        if (isset($new_color[3])) {
-            $this->currentColor = $new_color;
-            $this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F k", $this->currentColor));
-        } else {
-            if (isset($new_color[2])) {
-                $this->currentColor = $new_color;
-                $this->addContent(vsprintf("\n%.3F %.3F %.3F rg", $this->currentColor));
-            }
-        }
-    }
-
-    /**
-     * sets the color for fill operations
-     *
-     * @param $fillRule
-     */
-    function setFillRule($fillRule)
-    {
-        if (!in_array($fillRule, ["nonzero", "evenodd"])) {
-            return;
-        }
-
-        $this->fillRule = $fillRule;
-    }
-
-    /**
-     * sets the color for stroke operations
-     *
-     * @param $color
-     * @param bool $force
-     */
-    function setStrokeColor($color, $force = false)
-    {
-        $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
-
-        if (!$force && $this->currentStrokeColor == $new_color) {
-            return;
-        }
-
-        if (isset($new_color[3])) {
-            $this->currentStrokeColor = $new_color;
-            $this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F K", $this->currentStrokeColor));
-        } else {
-            if (isset($new_color[2])) {
-                $this->currentStrokeColor = $new_color;
-                $this->addContent(vsprintf("\n%.3F %.3F %.3F RG", $this->currentStrokeColor));
-            }
-        }
-    }
-
-    /**
-     * Set the graphics state for compositions
-     *
-     * @param $parameters
-     */
-    function setGraphicsState($parameters)
-    {
-        // Create a new graphics state object if necessary
-        if (($gstate = array_search($parameters, $this->gstates)) === false) {
-            $this->numObj++;
-            $this->o_extGState($this->numObj, 'new', $parameters);
-            $gstate = $this->numStates;
-            $this->gstates[$gstate] = $parameters;
-        }
-        $this->addContent("\n/GS$gstate gs");
-    }
-
-    /**
-     * Set current blend mode & opacity for lines.
-     *
-     * Valid blend modes are:
-     *
-     * Normal, Multiply, Screen, Overlay, Darken, Lighten,
-     * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
-     * Exclusion
-     *
-     * @param string $mode    the blend mode to use
-     * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
-     */
-    function setLineTransparency($mode, $opacity)
-    {
-        static $blend_modes = [
-            "Normal",
-            "Multiply",
-            "Screen",
-            "Overlay",
-            "Darken",
-            "Lighten",
-            "ColorDogde",
-            "ColorBurn",
-            "HardLight",
-            "SoftLight",
-            "Difference",
-            "Exclusion"
-        ];
-
-        if (!in_array($mode, $blend_modes)) {
-            $mode = "Normal";
-        }
-
-        if (is_null($this->currentLineTransparency)) {
-            $this->currentLineTransparency = [];
-        }
-
-        if ($mode === (key_exists('mode', $this->currentLineTransparency) ?
-            $this->currentLineTransparency['mode'] : '') &&
-            $opacity === (key_exists('opacity', $this->currentLineTransparency) ?
-            $this->currentLineTransparency["opacity"] : '')) {
-            return;
-        }
-
-        $this->currentLineTransparency["mode"] = $mode;
-        $this->currentLineTransparency["opacity"] = $opacity;
-
-        $options = [
-            "BM" => "/$mode",
-            "CA" => (float)$opacity
-        ];
-
-        $this->setGraphicsState($options);
-    }
-
-    /**
-     * Set current blend mode & opacity for filled objects.
-     *
-     * Valid blend modes are:
-     *
-     * Normal, Multiply, Screen, Overlay, Darken, Lighten,
-     * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
-     * Exclusion
-     *
-     * @param string $mode    the blend mode to use
-     * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
-     */
-    function setFillTransparency($mode, $opacity)
-    {
-        static $blend_modes = [
-            "Normal",
-            "Multiply",
-            "Screen",
-            "Overlay",
-            "Darken",
-            "Lighten",
-            "ColorDogde",
-            "ColorBurn",
-            "HardLight",
-            "SoftLight",
-            "Difference",
-            "Exclusion"
-        ];
-
-        if (!in_array($mode, $blend_modes)) {
-            $mode = "Normal";
-        }
-
-        if (is_null($this->currentFillTransparency)) {
-            $this->currentFillTransparency = [];
-        }
-
-        if ($mode === (key_exists('mode', $this->currentFillTransparency) ?
-            $this->currentFillTransparency['mode'] : '') &&
-            $opacity === (key_exists('opacity', $this->currentFillTransparency) ?
-            $this->currentFillTransparency["opacity"] : '')) {
-            return;
-        }
-
-        $this->currentFillTransparency["mode"] = $mode;
-        $this->currentFillTransparency["opacity"] = $opacity;
-
-        $options = [
-            "BM" => "/$mode",
-            "ca" => (float)$opacity,
-        ];
-
-        $this->setGraphicsState($options);
-    }
-
-    /**
-     * draw a line from one set of coordinates to another
-     *
-     * @param $x1
-     * @param $y1
-     * @param $x2
-     * @param $y2
-     * @param bool $stroke
-     */
-    function line($x1, $y1, $x2, $y2, $stroke = true)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F m %.3F %.3F l", $x1, $y1, $x2, $y2));
-
-        if ($stroke) {
-            $this->addContent(' S');
-        }
-    }
-
-    /**
-     * draw a bezier curve based on 4 control points
-     *
-     * @param $x0
-     * @param $y0
-     * @param $x1
-     * @param $y1
-     * @param $x2
-     * @param $y2
-     * @param $x3
-     * @param $y3
-     */
-    function curve($x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
-    {
-        // in the current line style, draw a bezier curve from (x0,y0) to (x3,y3) using the other two points
-        // as the control points for the curve.
-        $this->addContent(
-            sprintf("\n%.3F %.3F m %.3F %.3F %.3F %.3F %.3F %.3F c S", $x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
-        );
-    }
-
-    /**
-     * draw a part of an ellipse
-     *
-     * @param $x0
-     * @param $y0
-     * @param $astart
-     * @param $afinish
-     * @param $r1
-     * @param int $r2
-     * @param int $angle
-     * @param int $nSeg
-     */
-    function partEllipse($x0, $y0, $astart, $afinish, $r1, $r2 = 0, $angle = 0, $nSeg = 8)
-    {
-        $this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, false);
-    }
-
-    /**
-     * draw a filled ellipse
-     *
-     * @param $x0
-     * @param $y0
-     * @param $r1
-     * @param int $r2
-     * @param int $angle
-     * @param int $nSeg
-     * @param int $astart
-     * @param int $afinish
-     */
-    function filledEllipse($x0, $y0, $r1, $r2 = 0, $angle = 0, $nSeg = 8, $astart = 0, $afinish = 360)
-    {
-        $this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, true, true);
-    }
-
-    /**
-     * @param $x
-     * @param $y
-     */
-    function lineTo($x, $y)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F l", $x, $y));
-    }
-
-    /**
-     * @param $x
-     * @param $y
-     */
-    function moveTo($x, $y)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F m", $x, $y));
-    }
-
-    /**
-     * draw a bezier curve based on 4 control points
-     *
-     * @param $x1
-     * @param $y1
-     * @param $x2
-     * @param $y2
-     * @param $x3
-     * @param $y3
-     */
-    function curveTo($x1, $y1, $x2, $y2, $x3, $y3)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F %.3F %.3F c", $x1, $y1, $x2, $y2, $x3, $y3));
-    }
-
-    /**
-     * draw a bezier curve based on 4 control points
-     */
-    function quadTo($cpx, $cpy, $x, $y)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F v", $cpx, $cpy, $x, $y));
-    }
-
-    function closePath()
-    {
-        $this->addContent(' h');
-    }
-
-    function endPath()
-    {
-        $this->addContent(' n');
-    }
-
-    /**
-     * draw an ellipse
-     * note that the part and filled ellipse are just special cases of this function
-     *
-     * draws an ellipse in the current line style
-     * centered at $x0,$y0, radii $r1,$r2
-     * if $r2 is not set, then a circle is drawn
-     * from $astart to $afinish, measured in degrees, running anti-clockwise from the right hand side of the ellipse.
-     * nSeg is not allowed to be less than 2, as this will simply draw a line (and will even draw a
-     * pretty crappy shape at 2, as we are approximating with bezier curves.
-     *
-     * @param $x0
-     * @param $y0
-     * @param $r1
-     * @param int $r2
-     * @param int $angle
-     * @param int $nSeg
-     * @param int $astart
-     * @param int $afinish
-     * @param bool $close
-     * @param bool $fill
-     * @param bool $stroke
-     * @param bool $incomplete
-     */
-    function ellipse(
-        $x0,
-        $y0,
-        $r1,
-        $r2 = 0,
-        $angle = 0,
-        $nSeg = 8,
-        $astart = 0,
-        $afinish = 360,
-        $close = true,
-        $fill = false,
-        $stroke = true,
-        $incomplete = false
-    ) {
-        if ($r1 == 0) {
-            return;
-        }
-
-        if ($r2 == 0) {
-            $r2 = $r1;
-        }
-
-        if ($nSeg < 2) {
-            $nSeg = 2;
-        }
-
-        $astart = deg2rad((float)$astart);
-        $afinish = deg2rad((float)$afinish);
-        $totalAngle = $afinish - $astart;
-
-        $dt = $totalAngle / $nSeg;
-        $dtm = $dt / 3;
-
-        if ($angle != 0) {
-            $a = -1 * deg2rad((float)$angle);
-
-            $this->addContent(
-                sprintf("\n q %.3F %.3F %.3F %.3F %.3F %.3F cm", cos($a), -sin($a), sin($a), cos($a), $x0, $y0)
-            );
-
-            $x0 = 0;
-            $y0 = 0;
-        }
-
-        $t1 = $astart;
-        $a0 = $x0 + $r1 * cos($t1);
-        $b0 = $y0 + $r2 * sin($t1);
-        $c0 = -$r1 * sin($t1);
-        $d0 = $r2 * cos($t1);
-
-        if (!$incomplete) {
-            $this->addContent(sprintf("\n%.3F %.3F m ", $a0, $b0));
-        }
-
-        for ($i = 1; $i <= $nSeg; $i++) {
-            // draw this bit of the total curve
-            $t1 = $i * $dt + $astart;
-            $a1 = $x0 + $r1 * cos($t1);
-            $b1 = $y0 + $r2 * sin($t1);
-            $c1 = -$r1 * sin($t1);
-            $d1 = $r2 * cos($t1);
-
-            $this->addContent(
-                sprintf(
-                    "\n%.3F %.3F %.3F %.3F %.3F %.3F c",
-                    ($a0 + $c0 * $dtm),
-                    ($b0 + $d0 * $dtm),
-                    ($a1 - $c1 * $dtm),
-                    ($b1 - $d1 * $dtm),
-                    $a1,
-                    $b1
-                )
-            );
-
-            $a0 = $a1;
-            $b0 = $b1;
-            $c0 = $c1;
-            $d0 = $d1;
-        }
-
-        if (!$incomplete) {
-            if ($fill) {
-                $this->addContent(' f');
-            }
-
-            if ($stroke) {
-                if ($close) {
-                    $this->addContent(' s'); // small 's' signifies closing the path as well
-                } else {
-                    $this->addContent(' S');
-                }
-            }
-        }
-
-        if ($angle != 0) {
-            $this->addContent(' Q');
-        }
-    }
-
-    /**
-     * this sets the line drawing style.
-     * width, is the thickness of the line in user units
-     * cap is the type of cap to put on the line, values can be 'butt','round','square'
-     *    where the diffference between 'square' and 'butt' is that 'square' projects a flat end past the
-     *    end of the line.
-     * join can be 'miter', 'round', 'bevel'
-     * dash is an array which sets the dash pattern, is a series of length values, which are the lengths of the
-     *   on and off dashes.
-     *   (2) represents 2 on, 2 off, 2 on , 2 off ...
-     *   (2,1) is 2 on, 1 off, 2 on, 1 off.. etc
-     * phase is a modifier on the dash pattern which is used to shift the point at which the pattern starts.
-     *
-     * @param int $width
-     * @param string $cap
-     * @param string $join
-     * @param string $dash
-     * @param int $phase
-     */
-    function setLineStyle($width = 1, $cap = '', $join = '', $dash = '', $phase = 0)
-    {
-        // this is quite inefficient in that it sets all the parameters whenever 1 is changed, but will fix another day
-        $string = '';
-
-        if ($width > 0) {
-            $string .= "$width w";
-        }
-
-        $ca = ['butt' => 0, 'round' => 1, 'square' => 2];
-
-        if (isset($ca[$cap])) {
-            $string .= " $ca[$cap] J";
-        }
-
-        $ja = ['miter' => 0, 'round' => 1, 'bevel' => 2];
-
-        if (isset($ja[$join])) {
-            $string .= " $ja[$join] j";
-        }
-
-        if (is_array($dash)) {
-            $string .= ' [ ' . implode(' ', $dash) . " ] $phase d";
-        }
-
-        $this->currentLineStyle = $string;
-        $this->addContent("\n$string");
-    }
-
-    /**
-     * draw a polygon, the syntax for this is similar to the GD polygon command
-     *
-     * @param $p
-     * @param $np
-     * @param bool $f
-     */
-    function polygon($p, $np, $f = false)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F m ", $p[0], $p[1]));
-
-        for ($i = 2; $i < $np * 2; $i = $i + 2) {
-            $this->addContent(sprintf("%.3F %.3F l ", $p[$i], $p[$i + 1]));
-        }
-
-        if ($f) {
-            $this->addContent(' f');
-        } else {
-            $this->addContent(' S');
-        }
-    }
-
-    /**
-     * a filled rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
-     * the coordinates of the upper-right corner
-     *
-     * @param $x1
-     * @param $y1
-     * @param $width
-     * @param $height
-     */
-    function filledRectangle($x1, $y1, $width, $height)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re f", $x1, $y1, $width, $height));
-    }
-
-    /**
-     * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
-     * the coordinates of the upper-right corner
-     *
-     * @param $x1
-     * @param $y1
-     * @param $width
-     * @param $height
-     */
-    function rectangle($x1, $y1, $width, $height)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re S", $x1, $y1, $width, $height));
-    }
-
-    /**
-     * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
-     * the coordinates of the upper-right corner
-     *
-     * @param $x1
-     * @param $y1
-     * @param $width
-     * @param $height
-     */
-    function rect($x1, $y1, $width, $height)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re", $x1, $y1, $width, $height));
-    }
-
-    function stroke(bool $close = false)
-    {
-        $this->addContent("\n" . ($close ? "s" : "S"));
-    }
-
-    function fill()
-    {
-        $this->addContent("\nf" . ($this->fillRule === "evenodd" ? "*" : ""));
-    }
-
-    function fillStroke(bool $close = false)
-    {
-        $this->addContent("\n" . ($close ? "b" : "B") . ($this->fillRule === "evenodd" ? "*" : ""));
-    }
-
-    /**
-     * @param string $subtype
-     * @param integer $x
-     * @param integer $y
-     * @param integer $w
-     * @param integer $h
-     * @return int
-     */
-    function addXObject($subtype, $x, $y, $w, $h)
-    {
-        $id = ++$this->numObj;
-        $this->o_xobject($id, 'new', ['Subtype' => $subtype, 'bbox' => [$x, $y, $w, $h]]);
-        return $id;
-    }
-
-    /**
-     * @param integer $numXObject
-     * @param string $type
-     * @param array $options
-     */
-    function setXObjectResource($numXObject, $type, $options)
-    {
-        if (in_array($type, ['procset', 'font', 'xObject'])) {
-            $this->o_xobject($numXObject, $type, $options);
-        }
-    }
-
-    /**
-     * add signature
-     *
-     * $fieldSigId = $cpdf->addFormField(Cpdf::ACROFORM_FIELD_SIG, 'Signature1', 0, 0, 0, 0, 0);
-     *
-     * $signatureId = $cpdf->addSignature([
-     *   'signcert' => file_get_contents('dompdf.crt'),
-     *   'privkey' => file_get_contents('dompdf.key'),
-     *   'password' => 'password',
-     *   'name' => 'DomPDF DEMO',
-     *   'location' => 'Home',
-     *   'reason' => 'First Form',
-     *   'contactinfo' => 'info'
-     * ]);
-     * $cpdf->setFormFieldValue($fieldSigId, "$signatureId 0 R");
-     *
-     * @param string $signcert
-     * @param string $privkey
-     * @param string $password
-     * @param string|null $name
-     * @param string|null $location
-     * @param string|null $reason
-     * @param string|null $contactinfo
-     * @return int
-     */
-    function addSignature($signcert, $privkey, $password = '', $name = null, $location = null, $reason = null, $contactinfo = null) {
-        $sigId = ++$this->numObj;
-        $this->o_sig($sigId, 'new', [
-          'SignCert' => $signcert,
-          'PrivKey' => $privkey,
-          'Password' => $password,
-          'Name' => $name,
-          'Location' => $location,
-          'Reason' => $reason,
-          'ContactInfo' => $contactinfo
-        ]);
-
-        return $sigId;
-    }
-
-    /**
-     * add field to form
-     *
-     * @param string $type ACROFORM_FIELD_*
-     * @param string $name
-     * @param $x0
-     * @param $y0
-     * @param $x1
-     * @param $y1
-     * @param integer $ff Field Flag ACROFORM_FIELD_*_*
-     * @param float $size
-     * @param array $color
-     * @return int
-     */
-    public function addFormField($type, $name, $x0, $y0, $x1, $y1, $ff = 0, $size = 10.0, $color = [0, 0, 0])
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $color = implode(' ', $color) . ' rg';
-
-        $currentFontNum = $this->currentFontNum;
-        $font = array_filter($this->objects[$this->currentNode]['info']['fonts'],
-          function($item) use ($currentFontNum) { return $item['fontNum'] == $currentFontNum; });
-
-        $this->o_acroform($this->acroFormId, 'font',
-          ['objNum' => $font[0]['objNum'], 'fontNum' => $font[0]['fontNum']]);
-
-        $fieldId = ++$this->numObj;
-        $this->o_field($fieldId, 'new', [
-          'rect' => [$x0, $y0, $x1, $y1],
-          'F' => 4,
-          'FT' => "/$type",
-          'T' => $name,
-          'Ff' => $ff,
-          'pageid' => $this->currentPage,
-          'da' => "$color /F$this->currentFontNum " . sprintf('%.1F Tf ', $size)
-        ]);
-
-        return $fieldId;
-    }
-
-    /**
-     * set Field value
-     *
-     * @param integer $numFieldObj
-     * @param string $value
-     */
-    public function setFormFieldValue($numFieldObj, $value)
-    {
-        $this->o_field($numFieldObj, 'set', ['value' => $value]);
-    }
-
-    /**
-     * set Field value (reference)
-     *
-     * @param integer $numFieldObj
-     * @param integer $numObj Object number
-     */
-    public function setFormFieldRefValue($numFieldObj, $numObj)
-    {
-        $this->o_field($numFieldObj, 'set', ['refvalue' => $numObj]);
-    }
-
-    /**
-     * set Field Appearanc (reference)
-     *
-     * @param integer $numFieldObj
-     * @param integer $normalNumObj
-     * @param integer|null $rolloverNumObj
-     * @param integer|null $downNumObj
-     */
-    public function setFormFieldAppearance($numFieldObj, $normalNumObj, $rolloverNumObj = null, $downNumObj = null)
-    {
-        $appearance['N'] = $normalNumObj;
-
-        if ($rolloverNumObj !== null) {
-            $appearance['R'] = $rolloverNumObj;
-        }
-
-        if ($downNumObj !== null) {
-            $appearance['D'] = $downNumObj;
-        }
-
-        $this->o_field($numFieldObj, 'set', ['appearance' => $appearance]);
-    }
-
-    /**
-     * set Choice Field option values
-     *
-     * @param integer $numFieldObj
-     * @param array $value
-     */
-    public function setFormFieldOpt($numFieldObj, $value)
-    {
-        $this->o_field($numFieldObj, 'set', ['options' => $value]);
-    }
-
-    /**
-     * add form to document
-     *
-     * @param integer $sigFlags
-     * @param boolean $needAppearances
-     */
-    public function addForm($sigFlags = 0, $needAppearances = false)
-    {
-        $this->acroFormId = ++$this->numObj;
-        $this->o_acroform($this->acroFormId, 'new', [
-          'NeedAppearances' => $needAppearances ? 'true' : 'false',
-          'SigFlags' => $sigFlags
-        ]);
-    }
-
-    /**
-     * save the current graphic state
-     */
-    function save()
-    {
-        // we must reset the color cache or it will keep bad colors after clipping
-        $this->currentColor = null;
-        $this->currentStrokeColor = null;
-        $this->addContent("\nq");
-    }
-
-    /**
-     * restore the last graphic state
-     */
-    function restore()
-    {
-        // we must reset the color cache or it will keep bad colors after clipping
-        $this->currentColor = null;
-        $this->currentStrokeColor = null;
-        $this->addContent("\nQ");
-    }
-
-    /**
-     * draw a clipping rectangle, all the elements added after this will be clipped
-     *
-     * @param $x1
-     * @param $y1
-     * @param $width
-     * @param $height
-     */
-    function clippingRectangle($x1, $y1, $width, $height)
-    {
-        $this->save();
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re W n", $x1, $y1, $width, $height));
-    }
-
-    /**
-     * draw a clipping rounded rectangle, all the elements added after this will be clipped
-     *
-     * @param $x1
-     * @param $y1
-     * @param $w
-     * @param $h
-     * @param $rTL
-     * @param $rTR
-     * @param $rBR
-     * @param $rBL
-     */
-    function clippingRectangleRounded($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL)
-    {
-        $this->save();
-
-        // start: top edge, left end
-        $this->addContent(sprintf("\n%.3F %.3F m ", $x1, $y1 - $rTL + $h));
-
-        // line: bottom edge, left end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1, $y1 + $rBL));
-
-        // curve: bottom-left corner
-        $this->ellipse($x1 + $rBL, $y1 + $rBL, $rBL, 0, 0, 8, 180, 270, false, false, false, true);
-
-        // line: right edge, bottom end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w - $rBR, $y1));
-
-        // curve: bottom-right corner
-        $this->ellipse($x1 + $w - $rBR, $y1 + $rBR, $rBR, 0, 0, 8, 270, 360, false, false, false, true);
-
-        // line: right edge, top end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w, $y1 + $h - $rTR));
-
-        // curve: bottom-right corner
-        $this->ellipse($x1 + $w - $rTR, $y1 + $h - $rTR, $rTR, 0, 0, 8, 0, 90, false, false, false, true);
-
-        // line: bottom edge, right end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rTL, $y1 + $h));
-
-        // curve: top-right corner
-        $this->ellipse($x1 + $rTL, $y1 + $h - $rTL, $rTL, 0, 0, 8, 90, 180, false, false, false, true);
-
-        // line: top edge, left end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rBL, $y1));
-
-        // Close & clip
-        $this->addContent(" W n");
-    }
-
-    /**
-     * ends the last clipping shape
-     */
-    function clippingEnd()
-    {
-        $this->restore();
-    }
-
-    /**
-     * scale
-     *
-     * @param float $s_x scaling factor for width as percent
-     * @param float $s_y scaling factor for height as percent
-     * @param float $x   Origin abscissa
-     * @param float $y   Origin ordinate
-     */
-    function scale($s_x, $s_y, $x, $y)
-    {
-        $y = $this->currentPageSize["height"] - $y;
-
-        $tm = [
-            $s_x,
-            0,
-            0,
-            $s_y,
-            $x * (1 - $s_x),
-            $y * (1 - $s_y)
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * translate
-     *
-     * @param float $t_x movement to the right
-     * @param float $t_y movement to the bottom
-     */
-    function translate($t_x, $t_y)
-    {
-        $tm = [
-            1,
-            0,
-            0,
-            1,
-            $t_x,
-            -$t_y
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * rotate
-     *
-     * @param float $angle angle in degrees for counter-clockwise rotation
-     * @param float $x     Origin abscissa
-     * @param float $y     Origin ordinate
-     */
-    function rotate($angle, $x, $y)
-    {
-        $y = $this->currentPageSize["height"] - $y;
-
-        $a = deg2rad($angle);
-        $cos_a = cos($a);
-        $sin_a = sin($a);
-
-        $tm = [
-            $cos_a,
-            -$sin_a,
-            $sin_a,
-            $cos_a,
-            $x - $sin_a * $y - $cos_a * $x,
-            $y - $cos_a * $y + $sin_a * $x,
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * skew
-     *
-     * @param float $angle_x
-     * @param float $angle_y
-     * @param float $x Origin abscissa
-     * @param float $y Origin ordinate
-     */
-    function skew($angle_x, $angle_y, $x, $y)
-    {
-        $y = $this->currentPageSize["height"] - $y;
-
-        $tan_x = tan(deg2rad($angle_x));
-        $tan_y = tan(deg2rad($angle_y));
-
-        $tm = [
-            1,
-            -$tan_y,
-            -$tan_x,
-            1,
-            $tan_x * $y,
-            $tan_y * $x,
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * apply graphic transformations
-     *
-     * @param array $tm transformation matrix
-     */
-    function transform($tm)
-    {
-        $this->addContent(vsprintf("\n %.3F %.3F %.3F %.3F %.3F %.3F cm", $tm));
-    }
-
-    /**
-     * add a new page to the document
-     * this also makes the new page the current active object
-     *
-     * @param int $insert
-     * @param int $id
-     * @param string $pos
-     * @return int
-     */
-    function newPage($insert = 0, $id = 0, $pos = 'after')
-    {
-        // if there is a state saved, then go up the stack closing them
-        // then on the new page, re-open them with the right setings
-
-        if ($this->nStateStack) {
-            for ($i = $this->nStateStack; $i >= 1; $i--) {
-                $this->restoreState($i);
-            }
-        }
-
-        $this->numObj++;
-
-        if ($insert) {
-            // the id from the ezPdf class is the id of the contents of the page, not the page object itself
-            // query that object to find the parent
-            $rid = $this->objects[$id]['onPage'];
-            $opt = ['rid' => $rid, 'pos' => $pos];
-            $this->o_page($this->numObj, 'new', $opt);
-        } else {
-            $this->o_page($this->numObj, 'new');
-        }
-
-        // if there is a stack saved, then put that onto the page
-        if ($this->nStateStack) {
-            for ($i = 1; $i <= $this->nStateStack; $i++) {
-                $this->saveState($i);
-            }
-        }
-
-        // and if there has been a stroke or fill color set, then transfer them
-        if (isset($this->currentColor)) {
-            $this->setColor($this->currentColor, true);
-        }
-
-        if (isset($this->currentStrokeColor)) {
-            $this->setStrokeColor($this->currentStrokeColor, true);
-        }
-
-        // if there is a line style set, then put this in too
-        if (mb_strlen($this->currentLineStyle, '8bit')) {
-            $this->addContent("\n$this->currentLineStyle");
-        }
-
-        // the call to the o_page object set currentContents to the present page, so this can be returned as the page id
-        return $this->currentContents;
-    }
-
-    /**
-     * Streams the PDF to the client.
-     *
-     * @param string $filename The filename to present to the client.
-     * @param array $options Associative array: 'compress' => 1 or 0 (default 1); 'Attachment' => 1 or 0 (default 1).
-     */
-    function stream($filename = "document.pdf", $options = [])
-    {
-        if (headers_sent()) {
-            die("Unable to stream pdf: headers already sent");
-        }
-
-        if (!isset($options["compress"])) $options["compress"] = true;
-        if (!isset($options["Attachment"])) $options["Attachment"] = true;
-
-        $debug = !$options['compress'];
-        $tmp = ltrim($this->output($debug));
-
-        header("Cache-Control: private");
-        header("Content-Type: application/pdf");
-        header("Content-Length: " . mb_strlen($tmp, "8bit"));
-
-        $filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
-        $attachment = $options["Attachment"] ? "attachment" : "inline";
-
-        $encoding = mb_detect_encoding($filename);
-        $fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding);
-        $fallbackfilename = str_replace("\"", "", $fallbackfilename);
-        $encodedfilename = rawurlencode($filename);
-
-        $contentDisposition = "Content-Disposition: $attachment; filename=\"$fallbackfilename\"";
-        if ($fallbackfilename !== $filename) {
-            $contentDisposition .= "; filename*=UTF-8''$encodedfilename";
-        }
-        header($contentDisposition);
-
-        echo $tmp;
-        flush();
-    }
-
-    /**
-     * return the height in units of the current font in the given size
-     *
-     * @param $size
-     * @return float|int
-     */
-    function getFontHeight($size)
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $font = $this->fonts[$this->currentFont];
-
-        // for the current font, and the given size, what is the height of the font in user units
-        if (isset($font['Ascender']) && isset($font['Descender'])) {
-            $h = $font['Ascender'] - $font['Descender'];
-        } else {
-            $h = $font['FontBBox'][3] - $font['FontBBox'][1];
-        }
-
-        // have to adjust by a font offset for Windows fonts.  unfortunately it looks like
-        // the bounding box calculations are wrong and I don't know why.
-        if (isset($font['FontHeightOffset'])) {
-            // For CourierNew from Windows this needs to be -646 to match the
-            // Adobe native Courier font.
-            //
-            // For FreeMono from GNU this needs to be -337 to match the
-            // Courier font.
-            //
-            // Both have been added manually to the .afm and .ufm files.
-            $h += (int)$font['FontHeightOffset'];
-        }
-
-        return $size * $h / 1000;
-    }
-
-    /**
-     * @param $size
-     * @return float|int
-     */
-    function getFontXHeight($size)
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $font = $this->fonts[$this->currentFont];
-
-        // for the current font, and the given size, what is the height of the font in user units
-        if (isset($font['XHeight'])) {
-            $xh = $font['Ascender'] - $font['Descender'];
-        } else {
-            $xh = $this->getFontHeight($size) / 2;
-        }
-
-        return $size * $xh / 1000;
-    }
-
-    /**
-     * return the font descender, this will normally return a negative number
-     * if you add this number to the baseline, you get the level of the bottom of the font
-     * it is in the pdf user units
-     *
-     * @param $size
-     * @return float|int
-     */
-    function getFontDescender($size)
-    {
-        // note that this will most likely return a negative value
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        //$h = $this->fonts[$this->currentFont]['FontBBox'][1];
-        $h = $this->fonts[$this->currentFont]['Descender'];
-
-        return $size * $h / 1000;
-    }
-
-    /**
-     * filter the text, this is applied to all text just before being inserted into the pdf document
-     * it escapes the various things that need to be escaped, and so on
-     *
-     * @access private
-     *
-     * @param $text
-     * @param bool $bom
-     * @param bool $convert_encoding
-     * @return string
-     */
-    function filterText($text, $bom = true, $convert_encoding = true)
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        if ($convert_encoding) {
-            $cf = $this->currentFont;
-            if (isset($this->fonts[$cf]) && $this->fonts[$cf]['isUnicode']) {
-                $text = $this->utf8toUtf16BE($text, $bom);
-            } else {
-                //$text = html_entity_decode($text, ENT_QUOTES);
-                $text = mb_convert_encoding($text, self::$targetEncoding, 'UTF-8');
-            }
-        } else if ($bom) {
-            $text = $this->utf8toUtf16BE($text, $bom);
-        }
-
-        // the chr(13) substitution fixes a bug seen in TCPDF (bug #1421290)
-        return strtr($text, [')' => '\\)', '(' => '\\(', '\\' => '\\\\', chr(13) => '\r']);
-    }
-
-    /**
-     * return array containing codepoints (UTF-8 character values) for the
-     * string passed in.
-     *
-     * based on the excellent TCPDF code by Nicola Asuni and the
-     * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
-     *
-     * @access private
-     * @author Orion Richardson
-     * @since  January 5, 2008
-     *
-     * @param string $text UTF-8 string to process
-     *
-     * @return array UTF-8 codepoints array for the string
-     */
-    function utf8toCodePointsArray(&$text)
-    {
-        $length = mb_strlen($text, '8bit'); // http://www.php.net/manual/en/function.mb-strlen.php#77040
-        $unicode = []; // array containing unicode values
-        $bytes = []; // array containing single character byte sequences
-        $numbytes = 1; // number of octets needed to represent the UTF-8 character
-
-        for ($i = 0; $i < $length; $i++) {
-            $c = ord($text[$i]); // get one string character at time
-            if (count($bytes) === 0) { // get starting octect
-                if ($c <= 0x7F) {
-                    $unicode[] = $c; // use the character "as is" because is ASCII
-                    $numbytes = 1;
-                } elseif (($c >> 0x05) === 0x06) { // 2 bytes character (0x06 = 110 BIN)
-                    $bytes[] = ($c - 0xC0) << 0x06;
-                    $numbytes = 2;
-                } elseif (($c >> 0x04) === 0x0E) { // 3 bytes character (0x0E = 1110 BIN)
-                    $bytes[] = ($c - 0xE0) << 0x0C;
-                    $numbytes = 3;
-                } elseif (($c >> 0x03) === 0x1E) { // 4 bytes character (0x1E = 11110 BIN)
-                    $bytes[] = ($c - 0xF0) << 0x12;
-                    $numbytes = 4;
-                } else {
-                    // use replacement character for other invalid sequences
-                    $unicode[] = 0xFFFD;
-                    $bytes = [];
-                    $numbytes = 1;
-                }
-            } elseif (($c >> 0x06) === 0x02) { // bytes 2, 3 and 4 must start with 0x02 = 10 BIN
-                $bytes[] = $c - 0x80;
-                if (count($bytes) === $numbytes) {
-                    // compose UTF-8 bytes to a single unicode value
-                    $c = $bytes[0];
-                    for ($j = 1; $j < $numbytes; $j++) {
-                        $c += ($bytes[$j] << (($numbytes - $j - 1) * 0x06));
-                    }
-                    if ((($c >= 0xD800) and ($c <= 0xDFFF)) or ($c >= 0x10FFFF)) {
-                        // The definition of UTF-8 prohibits encoding character numbers between
-                        // U+D800 and U+DFFF, which are reserved for use with the UTF-16
-                        // encoding form (as surrogate pairs) and do not directly represent
-                        // characters.
-                        $unicode[] = 0xFFFD; // use replacement character
-                    } else {
-                        $unicode[] = $c; // add char to array
-                    }
-                    // reset data for next char
-                    $bytes = [];
-                    $numbytes = 1;
-                }
-            } else {
-                // use replacement character for other invalid sequences
-                $unicode[] = 0xFFFD;
-                $bytes = [];
-                $numbytes = 1;
-            }
-        }
-
-        return $unicode;
-    }
-
-    /**
-     * convert UTF-8 to UTF-16 with an additional byte order marker
-     * at the front if required.
-     *
-     * based on the excellent TCPDF code by Nicola Asuni and the
-     * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
-     *
-     * @access private
-     * @author Orion Richardson
-     * @since  January 5, 2008
-     *
-     * @param string  $text UTF-8 string to process
-     * @param boolean $bom  whether to add the byte order marker
-     *
-     * @return string UTF-16 result string
-     */
-    function utf8toUtf16BE(&$text, $bom = true)
-    {
-        $out = $bom ? "\xFE\xFF" : '';
-
-        $unicode = $this->utf8toCodePointsArray($text);
-        foreach ($unicode as $c) {
-            if ($c === 0xFFFD) {
-                $out .= "\xFF\xFD"; // replacement character
-            } elseif ($c < 0x10000) {
-                $out .= chr($c >> 0x08) . chr($c & 0xFF);
-            } else {
-                $c -= 0x10000;
-                $w1 = 0xD800 | ($c >> 0x10);
-                $w2 = 0xDC00 | ($c & 0x3FF);
-                $out .= chr($w1 >> 0x08) . chr($w1 & 0xFF) . chr($w2 >> 0x08) . chr($w2 & 0xFF);
-            }
-        }
-
-        return $out;
-    }
-
-    /**
-     * given a start position and information about how text is to be laid out, calculate where
-     * on the page the text will end
-     *
-     * @param $x
-     * @param $y
-     * @param $angle
-     * @param $size
-     * @param $wa
-     * @param $text
-     * @return array
-     */
-    private function getTextPosition($x, $y, $angle, $size, $wa, $text)
-    {
-        // given this information return an array containing x and y for the end position as elements 0 and 1
-        $w = $this->getTextWidth($size, $text);
-
-        // need to adjust for the number of spaces in this text
-        $words = explode(' ', $text);
-        $nspaces = count($words) - 1;
-        $w += $wa * $nspaces;
-        $a = deg2rad((float)$angle);
-
-        return [cos($a) * $w + $x, -sin($a) * $w + $y];
-    }
-
-    /**
-     * Callback method used by smallCaps
-     *
-     * @param array $matches
-     *
-     * @return string
-     */
-    function toUpper($matches)
-    {
-        return mb_strtoupper($matches[0]);
-    }
-
-    function concatMatches($matches)
-    {
-        $str = "";
-        foreach ($matches as $match) {
-            $str .= $match[0];
-        }
-
-        return $str;
-    }
-
-    /**
-     * register text for font subsetting
-     *
-     * @param $font
-     * @param $text
-     */
-    function registerText($font, $text)
-    {
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
-            return;
-        }
-
-        if (!isset($this->stringSubsets[$font])) {
-            $this->stringSubsets[$font] = [];
-        }
-
-        $this->stringSubsets[$font] = array_unique(
-            array_merge($this->stringSubsets[$font], $this->utf8toCodePointsArray($text))
-        );
-    }
-
-    /**
-     * add text to the document, at a specified location, size and angle on the page
-     *
-     * @param $x
-     * @param $y
-     * @param $size
-     * @param $text
-     * @param int $angle
-     * @param int $wordSpaceAdjust
-     * @param int $charSpaceAdjust
-     * @param bool $smallCaps
-     */
-    function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0, $charSpaceAdjust = 0, $smallCaps = false)
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $text = str_replace(["\r", "\n"], "", $text);
-
-        // if ($smallCaps) {
-        //     preg_match_all("/(\P{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
-        //     $lower = $this->concatMatches($matches);
-        //     d($lower);
-
-        //     preg_match_all("/(\p{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
-        //     $other = $this->concatMatches($matches);
-        //     d($other);
-
-        //     $text = preg_replace_callback("/\p{Ll}/u", array($this, "toUpper"), $text);
-        // }
-
-        // if there are any open callbacks, then they should be called, to show the start of the line
-        if ($this->nCallback > 0) {
-            for ($i = $this->nCallback; $i > 0; $i--) {
-                // call each function
-                $info = [
-                    'x'         => $x,
-                    'y'         => $y,
-                    'angle'     => $angle,
-                    'status'    => 'sol',
-                    'p'         => $this->callback[$i]['p'],
-                    'nCallback' => $this->callback[$i]['nCallback'],
-                    'height'    => $this->callback[$i]['height'],
-                    'descender' => $this->callback[$i]['descender']
-                ];
-
-                $func = $this->callback[$i]['f'];
-                $this->$func($info);
-            }
-        }
-
-        if ($angle == 0) {
-            $this->addContent(sprintf("\nBT %.3F %.3F Td", $x, $y));
-        } else {
-            $a = deg2rad((float)$angle);
-            $this->addContent(
-                sprintf("\nBT %.3F %.3F %.3F %.3F %.3F %.3F Tm", cos($a), -sin($a), sin($a), cos($a), $x, $y)
-            );
-        }
-
-        if ($wordSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tw", $wordSpaceAdjust));
-        }
-
-        if ($charSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tc", $charSpaceAdjust));
-        }
-
-        $len = mb_strlen($text);
-        $start = 0;
-
-        if ($start < $len) {
-            $part = $text; // OAR - Don't need this anymore, given that $start always equals zero.  substr($text, $start);
-            $place_text = $this->filterText($part, false);
-            // modify unicode text so that extra word spacing is manually implemented (bug #)
-            if ($this->fonts[$this->currentFont]['isUnicode'] && $wordSpaceAdjust != 0) {
-                $space_scale = 1000 / $size;
-                $place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20" . (-round($space_scale * $wordSpaceAdjust)) . "\x00\x20(", $place_text);
-            }
-            $this->addContent(" /F$this->currentFontNum " . sprintf('%.1F Tf ', $size));
-            $this->addContent(" [($place_text)] TJ");
-        }
-
-        if ($wordSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tw", 0));
-        }
-
-        if ($charSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tc", 0));
-        }
-
-        $this->addContent(' ET');
-
-        // if there are any open callbacks, then they should be called, to show the end of the line
-        if ($this->nCallback > 0) {
-            for ($i = $this->nCallback; $i > 0; $i--) {
-                // call each function
-                $tmp = $this->getTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, $text);
-                $info = [
-                    'x'         => $tmp[0],
-                    'y'         => $tmp[1],
-                    'angle'     => $angle,
-                    'status'    => 'eol',
-                    'p'         => $this->callback[$i]['p'],
-                    'nCallback' => $this->callback[$i]['nCallback'],
-                    'height'    => $this->callback[$i]['height'],
-                    'descender' => $this->callback[$i]['descender']
-                ];
-                $func = $this->callback[$i]['f'];
-                $this->$func($info);
-            }
-        }
-
-        if ($this->fonts[$this->currentFont]['isSubsetting']) {
-            $this->registerText($this->currentFont, $text);
-        }
-    }
-
-    /**
-     * calculate how wide a given text string will be on a page, at a given size.
-     * this can be called externally, but is also used by the other class functions
-     *
-     * @param float $size
-     * @param string $text
-     * @param float $word_spacing
-     * @param float $char_spacing
-     * @return float
-     */
-    function getTextWidth($size, $text, $word_spacing = 0, $char_spacing = 0)
-    {
-        static $ord_cache = [];
-
-        // this function should not change any of the settings, though it will need to
-        // track any directives which change during calculation, so copy them at the start
-        // and put them back at the end.
-        $store_currentTextState = $this->currentTextState;
-
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $text = str_replace(["\r", "\n"], "", $text);
-
-        // converts a number or a float to a string so it can get the width
-        $text = "$text";
-
-        // hmm, this is where it all starts to get tricky - use the font information to
-        // calculate the width of each character, add them up and convert to user units
-        $w = 0;
-        $cf = $this->currentFont;
-        $current_font = $this->fonts[$cf];
-        $space_scale = 1000 / ($size > 0 ? $size : 1);
-
-        if ($current_font['isUnicode']) {
-            // for Unicode, use the code points array to calculate width rather
-            // than just the string itself
-            $unicode = $this->utf8toCodePointsArray($text);
-
-            foreach ($unicode as $char) {
-                // check if we have to replace character
-                if (isset($current_font['differences'][$char])) {
-                    $char = $current_font['differences'][$char];
-                }
-
-                if (isset($current_font['C'][$char])) {
-                    $char_width = $current_font['C'][$char];
-
-                    // add the character width
-                    $w += $char_width;
-
-                    // add additional padding for space
-                    if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
-                        $w += $word_spacing * $space_scale;
-                    }
-                }
-            }
-
-            // add additional char spacing
-            if ($char_spacing != 0) {
-                $w += $char_spacing * $space_scale * count($unicode);
-            }
-
-        } else {
-            // If CPDF is in Unicode mode but the current font does not support Unicode we need to convert the character set to Windows-1252
-            if ($this->isUnicode) {
-                $text = mb_convert_encoding($text, 'Windows-1252', 'UTF-8');
-            }
-
-            $len = mb_strlen($text, 'Windows-1252');
-
-            for ($i = 0; $i < $len; $i++) {
-                $c = $text[$i];
-                $char = isset($ord_cache[$c]) ? $ord_cache[$c] : ($ord_cache[$c] = ord($c));
-
-                // check if we have to replace character
-                if (isset($current_font['differences'][$char])) {
-                    $char = $current_font['differences'][$char];
-                }
-
-                if (isset($current_font['C'][$char])) {
-                    $char_width = $current_font['C'][$char];
-
-                    // add the character width
-                    $w += $char_width;
-
-                    // add additional padding for space
-                    if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
-                        $w += $word_spacing * $space_scale;
-                    }
-                }
-            }
-
-            // add additional char spacing
-            if ($char_spacing != 0) {
-                $w += $char_spacing * $space_scale * $len;
-            }
-        }
-
-        $this->currentTextState = $store_currentTextState;
-        $this->setCurrentFont();
-
-        return $w * $size / 1000;
-    }
-
-    /**
-     * this will be called at a new page to return the state to what it was on the
-     * end of the previous page, before the stack was closed down
-     * This is to get around not being able to have open 'q' across pages
-     *
-     * @param int $pageEnd
-     */
-    function saveState($pageEnd = 0)
-    {
-        if ($pageEnd) {
-            // this will be called at a new page to return the state to what it was on the
-            // end of the previous page, before the stack was closed down
-            // This is to get around not being able to have open 'q' across pages
-            $opt = $this->stateStack[$pageEnd];
-            // ok to use this as stack starts numbering at 1
-            $this->setColor($opt['col'], true);
-            $this->setStrokeColor($opt['str'], true);
-            $this->addContent("\n" . $opt['lin']);
-            //    $this->currentLineStyle = $opt['lin'];
-        } else {
-            $this->nStateStack++;
-            $this->stateStack[$this->nStateStack] = [
-                'col' => $this->currentColor,
-                'str' => $this->currentStrokeColor,
-                'lin' => $this->currentLineStyle
-            ];
-        }
-
-        $this->save();
-    }
-
-    /**
-     * restore a previously saved state
-     *
-     * @param int $pageEnd
-     */
-    function restoreState($pageEnd = 0)
-    {
-        if (!$pageEnd) {
-            $n = $this->nStateStack;
-            $this->currentColor = $this->stateStack[$n]['col'];
-            $this->currentStrokeColor = $this->stateStack[$n]['str'];
-            $this->addContent("\n" . $this->stateStack[$n]['lin']);
-            $this->currentLineStyle = $this->stateStack[$n]['lin'];
-            $this->stateStack[$n] = null;
-            unset($this->stateStack[$n]);
-            $this->nStateStack--;
-        }
-
-        $this->restore();
-    }
-
-    /**
-     * make a loose object, the output will go into this object, until it is closed, then will revert to
-     * the current one.
-     * this object will not appear until it is included within a page.
-     * the function will return the object number
-     *
-     * @return int
-     */
-    function openObject()
-    {
-        $this->nStack++;
-        $this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
-        // add a new object of the content type, to hold the data flow
-        $this->numObj++;
-        $this->o_contents($this->numObj, 'new');
-        $this->currentContents = $this->numObj;
-        $this->looseObjects[$this->numObj] = 1;
-
-        return $this->numObj;
-    }
-
-    /**
-     * open an existing object for editing
-     *
-     * @param $id
-     */
-    function reopenObject($id)
-    {
-        $this->nStack++;
-        $this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
-        $this->currentContents = $id;
-
-        // also if this object is the primary contents for a page, then set the current page to its parent
-        if (isset($this->objects[$id]['onPage'])) {
-            $this->currentPage = $this->objects[$id]['onPage'];
-        }
-    }
-
-    /**
-     * close an object
-     */
-    function closeObject()
-    {
-        // close the object, as long as there was one open in the first place, which will be indicated by
-        // an objectId on the stack.
-        if ($this->nStack > 0) {
-            $this->currentContents = $this->stack[$this->nStack]['c'];
-            $this->currentPage = $this->stack[$this->nStack]['p'];
-            $this->nStack--;
-            // easier to probably not worry about removing the old entries, they will be overwritten
-            // if there are new ones.
-        }
-    }
-
-    /**
-     * stop an object from appearing on pages from this point on
-     *
-     * @param $id
-     */
-    function stopObject($id)
-    {
-        // if an object has been appearing on pages up to now, then stop it, this page will
-        // be the last one that could contain it.
-        if (isset($this->addLooseObjects[$id])) {
-            $this->addLooseObjects[$id] = '';
-        }
-    }
-
-    /**
-     * after an object has been created, it wil only show if it has been added, using this function.
-     *
-     * @param $id
-     * @param string $options
-     */
-    function addObject($id, $options = 'add')
-    {
-        // add the specified object to the page
-        if (isset($this->looseObjects[$id]) && $this->currentContents != $id) {
-            // then it is a valid object, and it is not being added to itself
-            switch ($options) {
-                case 'all':
-                    // then this object is to be added to this page (done in the next block) and
-                    // all future new pages.
-                    $this->addLooseObjects[$id] = 'all';
-
-                case 'add':
-                    if (isset($this->objects[$this->currentContents]['onPage'])) {
-                        // then the destination contents is the primary for the page
-                        // (though this object is actually added to that page)
-                        $this->o_page($this->objects[$this->currentContents]['onPage'], 'content', $id);
-                    }
-                    break;
-
-                case 'even':
-                    $this->addLooseObjects[$id] = 'even';
-                    $pageObjectId = $this->objects[$this->currentContents]['onPage'];
-                    if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 0) {
-                        $this->addObject($id);
-                        // hacky huh :)
-                    }
-                    break;
-
-                case 'odd':
-                    $this->addLooseObjects[$id] = 'odd';
-                    $pageObjectId = $this->objects[$this->currentContents]['onPage'];
-                    if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 1) {
-                        $this->addObject($id);
-                        // hacky huh :)
-                    }
-                    break;
-
-                case 'next':
-                    $this->addLooseObjects[$id] = 'all';
-                    break;
-
-                case 'nexteven':
-                    $this->addLooseObjects[$id] = 'even';
-                    break;
-
-                case 'nextodd':
-                    $this->addLooseObjects[$id] = 'odd';
-                    break;
-            }
-        }
-    }
-
-    /**
-     * return a storable representation of a specific object
-     *
-     * @param $id
-     * @return string|null
-     */
-    function serializeObject($id)
-    {
-        if (array_key_exists($id, $this->objects)) {
-            return serialize($this->objects[$id]);
-        }
-
-        return null;
-    }
-
-    /**
-     * restore an object from its stored representation. Returns its new object id.
-     *
-     * @param $obj
-     * @return int
-     */
-    function restoreSerializedObject($obj)
-    {
-        $obj_id = $this->openObject();
-        $this->objects[$obj_id] = unserialize($obj);
-        $this->closeObject();
-
-        return $obj_id;
-    }
-
-    /**
-     * Embeds a file inside the PDF
-     *
-     * @param string $filepath path to the file to store inside the PDF
-     * @param string $embeddedFilename the filename displayed in the list of embedded files
-     * @param string $description a description in the list of embedded files
-     */
-    public function addEmbeddedFile(string $filepath, string $embeddedFilename, string $description): void
-    {
-        $this->numObj++;
-        $this->o_embedded_file_dictionary(
-            $this->numObj,
-            'new',
-            [
-                'filepath' => $filepath,
-                'filename' => $embeddedFilename,
-                'description' => $description
-            ]
-        );
-    }
-
-    /**
-     * add content to the documents info object
-     *
-     * @param $label
-     * @param int $value
-     */
-    function addInfo($label, $value = 0)
-    {
-        // this will only work if the label is one of the valid ones.
-        // modify this so that arrays can be passed as well.
-        // if $label is an array then assume that it is key => value pairs
-        // else assume that they are both scalar, anything else will probably error
-        if (is_array($label)) {
-            foreach ($label as $l => $v) {
-                $this->o_info($this->infoObject, $l, $v);
-            }
-        } else {
-            $this->o_info($this->infoObject, $label, $value);
-        }
-    }
-
-    /**
-     * set the viewer preferences of the document, it is up to the browser to obey these.
-     *
-     * @param $label
-     * @param int $value
-     */
-    function setPreferences($label, $value = 0)
-    {
-        // this will only work if the label is one of the valid ones.
-        if (is_array($label)) {
-            foreach ($label as $l => $v) {
-                $this->o_catalog($this->catalogId, 'viewerPreferences', [$l => $v]);
-            }
-        } else {
-            $this->o_catalog($this->catalogId, 'viewerPreferences', [$label => $value]);
-        }
-    }
-
-    /**
-     * extract an integer from a position in a byte stream
-     *
-     * @param $data
-     * @param $pos
-     * @param $num
-     * @return int
-     */
-    private function getBytes(&$data, $pos, $num)
-    {
-        // return the integer represented by $num bytes from $pos within $data
-        $ret = 0;
-        for ($i = 0; $i < $num; $i++) {
-            $ret *= 256;
-            $ret += ord($data[$pos + $i]);
-        }
-
-        return $ret;
-    }
-
-    /**
-     * Check if image already added to pdf image directory.
-     * If yes, need not to create again (pass empty data)
-     *
-     * @param string $imgname
-     * @return bool
-     */
-    function image_iscached($imgname)
-    {
-        return isset($this->imagelist[$imgname]);
-    }
-
-    /**
-     * add a PNG image into the document, from a GD object
-     * this should work with remote files
-     *
-     * @param \GdImage|resource $img A GD resource
-     * @param string $file The PNG file
-     * @param float $x X position
-     * @param float $y Y position
-     * @param float $w Width
-     * @param float $h Height
-     * @param bool $is_mask true if the image is a mask
-     * @param bool $mask true if the image is masked
-     * @throws Exception
-     */
-    function addImagePng(&$img, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
-    {
-        if (!function_exists("imagepng")) {
-            throw new \Exception("The PHP GD extension is required, but is not installed.");
-        }
-
-        //if already cached, need not to read again
-        if (isset($this->imagelist[$file])) {
-            $data = null;
-        } else {
-            // Example for transparency handling on new image. Retain for current image
-            // $tIndex = imagecolortransparent($img);
-            // if ($tIndex > 0) {
-            //   $tColor    = imagecolorsforindex($img, $tIndex);
-            //   $new_tIndex    = imagecolorallocate($new_img, $tColor['red'], $tColor['green'], $tColor['blue']);
-            //   imagefill($new_img, 0, 0, $new_tIndex);
-            //   imagecolortransparent($new_img, $new_tIndex);
-            // }
-            // blending mode (literal/blending) on drawing into current image. not relevant when not saved or not drawn
-            //imagealphablending($img, true);
-
-            //default, but explicitely set to ensure pdf compatibility
-            imagesavealpha($img, false/*!$is_mask && !$mask*/);
-
-            $error = 0;
-            //DEBUG_IMG_TEMP
-            //debugpng
-            if (defined("DEBUGPNG") && DEBUGPNG) {
-                print '[addImagePng ' . $file . ']';
-            }
-
-            ob_start();
-            @imagepng($img);
-            $data = ob_get_clean();
-
-            if ($data == '') {
-                $error = 1;
-                $errormsg = 'trouble writing file from GD';
-                //DEBUG_IMG_TEMP
-                //debugpng
-                if (defined("DEBUGPNG") && DEBUGPNG) {
-                    print 'trouble writing file from GD';
-                }
-            }
-
-            if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
-
-                return;
-            }
-        }  //End isset($this->imagelist[$file]) (png Duplicate removal)
-
-        $this->addPngFromBuf($data, $file, $x, $y, $w, $h, $is_mask, $mask);
-    }
-
-    /**
-     * @param $file
-     * @param $x
-     * @param $y
-     * @param $w
-     * @param $h
-     * @param $byte
-     */
-    protected function addImagePngAlpha($file, $x, $y, $w, $h, $byte)
-    {
-        // generate images
-        $img = imagecreatefrompng($file);
-
-        if ($img === false) {
-            return;
-        }
-
-        // FIXME The pixel transformation doesn't work well with 8bit PNGs
-        $eight_bit = ($byte & 4) !== 4;
-
-        $wpx = imagesx($img);
-        $hpx = imagesy($img);
-
-        imagesavealpha($img, false);
-
-        // create temp alpha file
-        $tempfile_alpha = @tempnam($this->tmp, "cpdf_img_");
-        @unlink($tempfile_alpha);
-        $tempfile_alpha = "$tempfile_alpha.png";
-
-        // create temp plain file
-        $tempfile_plain = @tempnam($this->tmp, "cpdf_img_");
-        @unlink($tempfile_plain);
-        $tempfile_plain = "$tempfile_plain.png";
-
-        $imgalpha = imagecreate($wpx, $hpx);
-        imagesavealpha($imgalpha, false);
-
-        // generate gray scale palette (0 -> 255)
-        for ($c = 0; $c < 256; ++$c) {
-            imagecolorallocate($imgalpha, $c, $c, $c);
-        }
-
-        // Use PECL gmagick + Graphics Magic to process transparent PNG images
-        if (extension_loaded("gmagick")) {
-            $gmagick = new \Gmagick($file);
-            $gmagick->setimageformat('png');
-
-            // Get opacity channel (negative of alpha channel)
-            $alpha_channel_neg = clone $gmagick;
-            $alpha_channel_neg->separateimagechannel(\Gmagick::CHANNEL_OPACITY);
-
-            // Negate opacity channel
-            $alpha_channel = new \Gmagick();
-            $alpha_channel->newimage($wpx, $hpx, "#FFFFFF", "png");
-            $alpha_channel->compositeimage($alpha_channel_neg, \Gmagick::COMPOSITE_DIFFERENCE, 0, 0);
-            $alpha_channel->separateimagechannel(\Gmagick::CHANNEL_RED);
-            $alpha_channel->writeimage($tempfile_alpha);
-
-            // Cast to 8bit+palette
-            $imgalpha_ = imagecreatefrompng($tempfile_alpha);
-            imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
-            imagedestroy($imgalpha_);
-            imagepng($imgalpha, $tempfile_alpha);
-
-            // Make opaque image
-            $color_channels = new \Gmagick();
-            $color_channels->newimage($wpx, $hpx, "#FFFFFF", "png");
-            $color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYRED, 0, 0);
-            $color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYGREEN, 0, 0);
-            $color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYBLUE, 0, 0);
-            $color_channels->writeimage($tempfile_plain);
-
-            $imgplain = imagecreatefrompng($tempfile_plain);
-        }
-        // Use PECL imagick + ImageMagic to process transparent PNG images
-        elseif (extension_loaded("imagick")) {
-            // Native cloning was added to pecl-imagick in svn commit 263814
-            // the first version containing it was 3.0.1RC1
-            static $imagickClonable = null;
-            if ($imagickClonable === null) {
-                $imagickClonable = true;
-                if (defined('Imagick::IMAGICK_EXTVER')) {
-                    $imagickVersion = \Imagick::IMAGICK_EXTVER;
-                } else {
-                    $imagickVersion = '0';
-                }
-                if (version_compare($imagickVersion, '0.0.1', '>=')) {
-                    $imagickClonable = version_compare($imagickVersion, '3.0.1rc1', '>=');
-                }
-            }
-
-            $imagick = new \Imagick($file);
-            $imagick->setFormat('png');
-
-            // Get opacity channel (negative of alpha channel)
-            if ($imagick->getImageAlphaChannel() !== 0) {
-                $alpha_channel = $imagickClonable ? clone $imagick : $imagick->clone();
-                $alpha_channel->separateImageChannel(\Imagick::CHANNEL_ALPHA);
-                // Since ImageMagick7 negate invert transparency as default
-                if (\Imagick::getVersion()['versionNumber'] < 1800) {
-                    $alpha_channel->negateImage(true);
-                }
-                $alpha_channel->writeImage($tempfile_alpha);
-
-                // Cast to 8bit+palette
-                $imgalpha_ = imagecreatefrompng($tempfile_alpha);
-                imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
-                imagedestroy($imgalpha_);
-                imagepng($imgalpha, $tempfile_alpha);
-            } else {
-                $tempfile_alpha = null;
-            }
-
-            // Make opaque image
-            $color_channels = new \Imagick();
-            $color_channels->newImage($wpx, $hpx, "#FFFFFF", "png");
-            $color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYRED, 0, 0);
-            $color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYGREEN, 0, 0);
-            $color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYBLUE, 0, 0);
-            $color_channels->writeImage($tempfile_plain);
-
-            $imgplain = imagecreatefrompng($tempfile_plain);
-        } else {
-            // allocated colors cache
-            $allocated_colors = [];
-
-            // extract alpha channel
-            for ($xpx = 0; $xpx < $wpx; ++$xpx) {
-                for ($ypx = 0; $ypx < $hpx; ++$ypx) {
-                    $color = imagecolorat($img, $xpx, $ypx);
-                    $col = imagecolorsforindex($img, $color);
-                    $alpha = $col['alpha'];
-
-                    if ($eight_bit) {
-                        // with gamma correction
-                        $gammacorr = 2.2;
-                        $pixel = round(pow((((127 - $alpha) * 255 / 127) / 255), $gammacorr) * 255);
-                    } else {
-                        // without gamma correction
-                        $pixel = (127 - $alpha) * 2;
-
-                        $key = $col['red'] . $col['green'] . $col['blue'];
-
-                        if (!isset($allocated_colors[$key])) {
-                            $pixel_img = imagecolorallocate($img, $col['red'], $col['green'], $col['blue']);
-                            $allocated_colors[$key] = $pixel_img;
-                        } else {
-                            $pixel_img = $allocated_colors[$key];
-                        }
-
-                        imagesetpixel($img, $xpx, $ypx, $pixel_img);
-                    }
-
-                    imagesetpixel($imgalpha, $xpx, $ypx, $pixel);
-                }
-            }
-
-            // extract image without alpha channel
-            $imgplain = imagecreatetruecolor($wpx, $hpx);
-            imagecopy($imgplain, $img, 0, 0, 0, 0, $wpx, $hpx);
-            imagedestroy($img);
-
-            imagepng($imgalpha, $tempfile_alpha);
-            imagepng($imgplain, $tempfile_plain);
-        }
-
-        $this->imageAlphaList[$file] = [$tempfile_alpha, $tempfile_plain];
-
-        // embed mask image
-        if ($tempfile_alpha) {
-            $this->addImagePng($imgalpha, $tempfile_alpha, $x, $y, $w, $h, true);
-            imagedestroy($imgalpha);
-            $this->imageCache[] = $tempfile_alpha;
-        }
-
-        // embed image, masked with previously embedded mask
-        $this->addImagePng($imgplain, $tempfile_plain, $x, $y, $w, $h, false, ($tempfile_alpha !== null));
-        imagedestroy($imgplain);
-        $this->imageCache[] = $tempfile_plain;
-    }
-
-    /**
-     * add a PNG image into the document, from a file
-     * this should work with remote files
-     *
-     * @param $file
-     * @param $x
-     * @param $y
-     * @param int $w
-     * @param int $h
-     * @throws Exception
-     */
-    function addPngFromFile($file, $x, $y, $w = 0, $h = 0)
-    {
-        if (!function_exists("imagecreatefrompng")) {
-            throw new \Exception("The PHP GD extension is required, but is not installed.");
-        }
-
-        if (isset($this->imageAlphaList[$file])) {
-            [$alphaFile, $plainFile] = $this->imageAlphaList[$file];
-
-            if ($alphaFile) {
-                $img = null;
-                $this->addImagePng($img, $alphaFile, $x, $y, $w, $h, true);
-            }
-
-            $img = null;
-            $this->addImagePng($img, $plainFile, $x, $y, $w, $h, false, ($plainFile !== null));
-            return;
-        }
-
-        //if already cached, need not to read again
-        if (isset($this->imagelist[$file])) {
-            $img = null;
-        } else {
-            $info = file_get_contents($file, false, null, 24, 5);
-            $meta = unpack("CbitDepth/CcolorType/CcompressionMethod/CfilterMethod/CinterlaceMethod", $info);
-            $bit_depth = $meta["bitDepth"];
-            $color_type = $meta["colorType"];
-
-            // http://www.w3.org/TR/PNG/#11IHDR
-            // 3 => indexed
-            // 4 => greyscale with alpha
-            // 6 => fullcolor with alpha
-            $is_alpha = in_array($color_type, [4, 6]) || ($color_type == 3 && $bit_depth != 4);
-
-            if ($is_alpha) { // exclude grayscale alpha
-                $this->addImagePngAlpha($file, $x, $y, $w, $h, $color_type);
-                return;
-            }
-
-            //png files typically contain an alpha channel.
-            //pdf file format or class.pdf does not support alpha blending.
-            //on alpha blended images, more transparent areas have a color near black.
-            //This appears in the result on not storing the alpha channel.
-            //Correct would be the box background image or its parent when transparent.
-            //But this would make the image dependent on the background.
-            //Therefore create an image with white background and copy in
-            //A more natural background than black is white.
-            //Therefore create an empty image with white background and merge the
-            //image in with alpha blending.
-            $imgtmp = @imagecreatefrompng($file);
-            if (!$imgtmp) {
-                return;
-            }
-            $sx = imagesx($imgtmp);
-            $sy = imagesy($imgtmp);
-            $img = imagecreatetruecolor($sx, $sy);
-            imagealphablending($img, true);
-
-            // @todo is it still needed ??
-            $ti = imagecolortransparent($imgtmp);
-            if ($ti >= 0) {
-                $tc = imagecolorsforindex($imgtmp, $ti);
-                $ti = imagecolorallocate($img, $tc['red'], $tc['green'], $tc['blue']);
-                imagefill($img, 0, 0, $ti);
-                imagecolortransparent($img, $ti);
-            } else {
-                imagefill($img, 1, 1, imagecolorallocate($img, 255, 255, 255));
-            }
-
-            imagecopy($img, $imgtmp, 0, 0, 0, 0, $sx, $sy);
-            imagedestroy($imgtmp);
-        }
-        $this->addImagePng($img, $file, $x, $y, $w, $h);
-
-        if ($img) {
-            imagedestroy($img);
-        }
-    }
-
-    /**
-     * add a PNG image into the document, from a memory buffer of the file
-     *
-     * @param $data
-     * @param $file
-     * @param $x
-     * @param $y
-     * @param float $w
-     * @param float $h
-     * @param bool $is_mask
-     * @param null $mask
-     */
-    function addPngFromBuf(&$data, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
-    {
-        if (isset($this->imagelist[$file])) {
-            $data = null;
-            $info['width'] = $this->imagelist[$file]['w'];
-            $info['height'] = $this->imagelist[$file]['h'];
-            $label = $this->imagelist[$file]['label'];
-        } else {
-            if ($data == null) {
-                $this->addMessage('addPngFromBuf error - data not present!');
-
-                return;
-            }
-
-            $error = 0;
-
-            if (!$error) {
-                $header = chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10);
-
-                if (mb_substr($data, 0, 8, '8bit') != $header) {
-                    $error = 1;
-
-                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile this file does not have a valid header ' . $file . ']';
-                    }
-
-                    $errormsg = 'this file does not have a valid header';
-                }
-            }
-
-            if (!$error) {
-                // set pointer
-                $p = 8;
-                $len = mb_strlen($data, '8bit');
-
-                // cycle through the file, identifying chunks
-                $haveHeader = 0;
-                $info = [];
-                $idata = '';
-                $pdata = '';
-
-                while ($p < $len) {
-                    $chunkLen = $this->getBytes($data, $p, 4);
-                    $chunkType = mb_substr($data, $p + 4, 4, '8bit');
-
-                    switch ($chunkType) {
-                        case 'IHDR':
-                            // this is where all the file information comes from
-                            $info['width'] = $this->getBytes($data, $p + 8, 4);
-                            $info['height'] = $this->getBytes($data, $p + 12, 4);
-                            $info['bitDepth'] = ord($data[$p + 16]);
-                            $info['colorType'] = ord($data[$p + 17]);
-                            $info['compressionMethod'] = ord($data[$p + 18]);
-                            $info['filterMethod'] = ord($data[$p + 19]);
-                            $info['interlaceMethod'] = ord($data[$p + 20]);
-
-                            //print_r($info);
-                            $haveHeader = 1;
-                            if ($info['compressionMethod'] != 0) {
-                                $error = 1;
-
-                                //debugpng
-                                if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported compression method ' . $file . ']';
-                                }
-
-                                $errormsg = 'unsupported compression method';
-                            }
-
-                            if ($info['filterMethod'] != 0) {
-                                $error = 1;
-
-                                //debugpng
-                                if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported filter method ' . $file . ']';
-                                }
-
-                                $errormsg = 'unsupported filter method';
-                            }
-                            break;
-
-                        case 'PLTE':
-                            $pdata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
-                            break;
-
-                        case 'IDAT':
-                            $idata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
-                            break;
-
-                        case 'tRNS':
-                            //this chunk can only occur once and it must occur after the PLTE chunk and before IDAT chunk
-                            //print "tRNS found, color type = ".$info['colorType']."\n";
-                            $transparency = [];
-
-                            switch ($info['colorType']) {
-                                // indexed color, rbg
-                                case 3:
-                                    /* corresponding to entries in the plte chunk
+					}
+				}
+			}
+
+			if ($this->compressionReady && $this->options['compression']) {
+				// then implement ZLIB based compression on CIDtoGID string
+				$data['CIDtoGID_Compressed'] = true;
+				$cidtogid = gzcompress($cidtogid, 6);
+			}
+			$data['CIDtoGID'] = base64_encode($cidtogid);
+			$data['_version_'] = $this->fontcacheVersion;
+			$this->fonts[$font] = $data;
+
+			//Because of potential trouble with php safe mode, expect that the folder already exists.
+			//If not existing, this will hit performance because of missing cached results.
+			if (is_dir($fontcache) && is_writable($fontcache)) {
+				file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . var_export($data, true) . ';');
+			}
+			$data = null;
+		}
+
+		if (!isset($this->fonts[$font])) {
+			$this->addMessage("openFont: no font file found for $font. Do you need to run load_font.php?");
+		}
+
+		//pre_r($this->messages);
+	}
+
+	/**
+	 * if the font is not loaded then load it and make the required object
+	 * else just make it the current font
+	 * the encoding array can contain 'encoding'=> 'none','WinAnsiEncoding','MacRomanEncoding' or 'MacExpertEncoding'
+	 * note that encoding='none' will need to be used for symbolic fonts
+	 * and 'differences' => an array of mappings between numbers 0->255 and character names.
+	 *
+	 * @param $fontName
+	 * @param string $encoding
+	 * @param bool $set
+	 * @param bool $isSubsetting
+	 * @return int
+	 * @throws FontNotFoundException
+	 */
+	function selectFont($fontName, $encoding = '', $set = true, $isSubsetting = true)
+	{
+		if ($fontName === null || $fontName === '') {
+			return $this->currentFontNum;
+		}
+
+		$ext = substr($fontName, -4);
+		if ($ext === '.afm' || $ext === '.ufm') {
+			$fontName = substr($fontName, 0, mb_strlen($fontName) - 4);
+		}
+
+		if (!isset($this->fonts[$fontName])) {
+			$this->addMessage("selectFont: selecting - $fontName - $encoding, $set");
+
+			// load the file
+			$this->openFont($fontName);
+
+			if (isset($this->fonts[$fontName])) {
+				$this->numObj++;
+				$this->numFonts++;
+
+				$font = &$this->fonts[$fontName];
+
+				$name = basename($fontName);
+				$options = ['name' => $name, 'fontFileName' => $fontName, 'isSubsetting' => $isSubsetting];
+
+				if (is_array($encoding)) {
+					// then encoding and differences might be set
+					if (isset($encoding['encoding'])) {
+						$options['encoding'] = $encoding['encoding'];
+					}
+
+					if (isset($encoding['differences'])) {
+						$options['differences'] = $encoding['differences'];
+					}
+				} else {
+					if (mb_strlen($encoding, '8bit')) {
+						// then perhaps only the encoding has been set
+						$options['encoding'] = $encoding;
+					}
+				}
+
+				$this->o_font($this->numObj, 'new', $options);
+
+				if (file_exists("$fontName.ttf")) {
+					$fileSuffix = 'ttf';
+				} elseif (file_exists("$fontName.TTF")) {
+					$fileSuffix = 'TTF';
+				} elseif (file_exists("$fontName.pfb")) {
+					$fileSuffix = 'pfb';
+				} elseif (file_exists("$fontName.PFB")) {
+					$fileSuffix = 'PFB';
+				} else {
+					$fileSuffix = '';
+				}
+
+				$font['fileSuffix'] = $fileSuffix;
+
+				$font['fontNum'] = $this->numFonts;
+				$font['isSubsetting'] = $isSubsetting && $font['isUnicode'] && strtolower($fileSuffix) === 'ttf';
+
+				// also set the differences here, note that this means that these will take effect only the
+				//first time that a font is selected, else they are ignored
+				if (isset($options['differences'])) {
+					$font['differences'] = $options['differences'];
+				}
+			}
+		}
+
+		if ($set && isset($this->fonts[$fontName])) {
+			// so if for some reason the font was not set in the last one then it will not be selected
+			$this->currentBaseFont = $fontName;
+
+			// the next lines mean that if a new font is selected, then the current text state will be
+			// applied to it as well.
+			$this->currentFont = $this->currentBaseFont;
+			$this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
+		}
+
+		return $this->currentFontNum;
+	}
+
+	/**
+	 * sets up the current font, based on the font families, and the current text state
+	 * note that this system is quite flexible, a bold-italic font can be completely different to a
+	 * italic-bold font, and even bold-bold will have to be defined within the family to have meaning
+	 * This function is to be called whenever the currentTextState is changed, it will update
+	 * the currentFont setting to whatever the appropriate family one is.
+	 * If the user calls selectFont themselves then that will reset the currentBaseFont, and the currentFont
+	 * This function will change the currentFont to whatever it should be, but will not change the
+	 * currentBaseFont.
+	 */
+	private function setCurrentFont()
+	{
+		//   if (strlen($this->currentBaseFont) == 0){
+		//     // then assume an initial font
+		//     $this->selectFont($this->defaultFont);
+		//   }
+		//   $cf = substr($this->currentBaseFont,strrpos($this->currentBaseFont,'/')+1);
+		//   if (strlen($this->currentTextState)
+		//     && isset($this->fontFamilies[$cf])
+		//       && isset($this->fontFamilies[$cf][$this->currentTextState])){
+		//     // then we are in some state or another
+		//     // and this font has a family, and the current setting exists within it
+		//     // select the font, then return it
+		//     $nf = substr($this->currentBaseFont,0,strrpos($this->currentBaseFont,'/')+1).$this->fontFamilies[$cf][$this->currentTextState];
+		//     $this->selectFont($nf,'',0);
+		//     $this->currentFont = $nf;
+		//     $this->currentFontNum = $this->fonts[$nf]['fontNum'];
+		//   } else {
+		//     // the this font must not have the right family member for the current state
+		//     // simply assume the base font
+		$this->currentFont = $this->currentBaseFont;
+		$this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
+		//  }
+	}
+
+	/**
+	 * function for the user to find out what the ID is of the first page that was created during
+	 * startup - useful if they wish to add something to it later.
+	 *
+	 * @return int
+	 */
+	function getFirstPageId()
+	{
+		return $this->firstPageId;
+	}
+
+	/**
+	 * add content to the currently active object
+	 *
+	 * @param $content
+	 */
+	private function addContent($content)
+	{
+		$this->objects[$this->currentContents]['c'] .= $content;
+	}
+
+	/**
+	 * sets the color for fill operations
+	 *
+	 * @param $color
+	 * @param bool $force
+	 */
+	function setColor($color, $force = false)
+	{
+		$new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
+
+		if (!$force && $this->currentColor == $new_color) {
+			return;
+		}
+
+		if (isset($new_color[3])) {
+			$this->currentColor = $new_color;
+			$this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F k", $this->currentColor));
+		} else {
+			if (isset($new_color[2])) {
+				$this->currentColor = $new_color;
+				$this->addContent(vsprintf("\n%.3F %.3F %.3F rg", $this->currentColor));
+			}
+		}
+	}
+
+	/**
+	 * sets the color for fill operations
+	 *
+	 * @param $fillRule
+	 */
+	function setFillRule($fillRule)
+	{
+		if (!in_array($fillRule, ["nonzero", "evenodd"])) {
+			return;
+		}
+
+		$this->fillRule = $fillRule;
+	}
+
+	/**
+	 * sets the color for stroke operations
+	 *
+	 * @param $color
+	 * @param bool $force
+	 */
+	function setStrokeColor($color, $force = false)
+	{
+		$new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
+
+		if (!$force && $this->currentStrokeColor == $new_color) {
+			return;
+		}
+
+		if (isset($new_color[3])) {
+			$this->currentStrokeColor = $new_color;
+			$this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F K", $this->currentStrokeColor));
+		} else {
+			if (isset($new_color[2])) {
+				$this->currentStrokeColor = $new_color;
+				$this->addContent(vsprintf("\n%.3F %.3F %.3F RG", $this->currentStrokeColor));
+			}
+		}
+	}
+
+	/**
+	 * Set the graphics state for compositions
+	 *
+	 * @param $parameters
+	 */
+	function setGraphicsState($parameters)
+	{
+		// Create a new graphics state object if necessary
+		if (($gstate = array_search($parameters, $this->gstates)) === false) {
+			$this->numObj++;
+			$this->o_extGState($this->numObj, 'new', $parameters);
+			$gstate = $this->numStates;
+			$this->gstates[$gstate] = $parameters;
+		}
+		$this->addContent("\n/GS$gstate gs");
+	}
+
+	/**
+	 * Set current blend mode & opacity for lines.
+	 *
+	 * Valid blend modes are:
+	 *
+	 * Normal, Multiply, Screen, Overlay, Darken, Lighten,
+	 * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
+	 * Exclusion
+	 *
+	 * @param string $mode    the blend mode to use
+	 * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
+	 */
+	function setLineTransparency($mode, $opacity)
+	{
+		static $blend_modes = [
+			"Normal",
+			"Multiply",
+			"Screen",
+			"Overlay",
+			"Darken",
+			"Lighten",
+			"ColorDogde",
+			"ColorBurn",
+			"HardLight",
+			"SoftLight",
+			"Difference",
+			"Exclusion"
+		];
+
+		if (!in_array($mode, $blend_modes)) {
+			$mode = "Normal";
+		}
+
+		if (is_null($this->currentLineTransparency)) {
+			$this->currentLineTransparency = [];
+		}
+
+		if ($mode === (key_exists('mode', $this->currentLineTransparency) ?
+			$this->currentLineTransparency['mode'] : '') &&
+			$opacity === (key_exists('opacity', $this->currentLineTransparency) ?
+			$this->currentLineTransparency["opacity"] : '')) {
+			return;
+		}
+
+		$this->currentLineTransparency["mode"] = $mode;
+		$this->currentLineTransparency["opacity"] = $opacity;
+
+		$options = [
+			"BM" => "/$mode",
+			"CA" => (float)$opacity
+		];
+
+		$this->setGraphicsState($options);
+	}
+
+	/**
+	 * Set current blend mode & opacity for filled objects.
+	 *
+	 * Valid blend modes are:
+	 *
+	 * Normal, Multiply, Screen, Overlay, Darken, Lighten,
+	 * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
+	 * Exclusion
+	 *
+	 * @param string $mode    the blend mode to use
+	 * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
+	 */
+	function setFillTransparency($mode, $opacity)
+	{
+		static $blend_modes = [
+			"Normal",
+			"Multiply",
+			"Screen",
+			"Overlay",
+			"Darken",
+			"Lighten",
+			"ColorDogde",
+			"ColorBurn",
+			"HardLight",
+			"SoftLight",
+			"Difference",
+			"Exclusion"
+		];
+
+		if (!in_array($mode, $blend_modes)) {
+			$mode = "Normal";
+		}
+
+		if (is_null($this->currentFillTransparency)) {
+			$this->currentFillTransparency = [];
+		}
+
+		if ($mode === (key_exists('mode', $this->currentFillTransparency) ?
+			$this->currentFillTransparency['mode'] : '') &&
+			$opacity === (key_exists('opacity', $this->currentFillTransparency) ?
+			$this->currentFillTransparency["opacity"] : '')) {
+			return;
+		}
+
+		$this->currentFillTransparency["mode"] = $mode;
+		$this->currentFillTransparency["opacity"] = $opacity;
+
+		$options = [
+			"BM" => "/$mode",
+			"ca" => (float)$opacity,
+		];
+
+		$this->setGraphicsState($options);
+	}
+
+	/**
+	 * draw a line from one set of coordinates to another
+	 *
+	 * @param $x1
+	 * @param $y1
+	 * @param $x2
+	 * @param $y2
+	 * @param bool $stroke
+	 */
+	function line($x1, $y1, $x2, $y2, $stroke = true)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F m %.3F %.3F l", $x1, $y1, $x2, $y2));
+
+		if ($stroke) {
+			$this->addContent(' S');
+		}
+	}
+
+	/**
+	 * draw a bezier curve based on 4 control points
+	 *
+	 * @param $x0
+	 * @param $y0
+	 * @param $x1
+	 * @param $y1
+	 * @param $x2
+	 * @param $y2
+	 * @param $x3
+	 * @param $y3
+	 */
+	function curve($x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
+	{
+		// in the current line style, draw a bezier curve from (x0,y0) to (x3,y3) using the other two points
+		// as the control points for the curve.
+		$this->addContent(
+			sprintf("\n%.3F %.3F m %.3F %.3F %.3F %.3F %.3F %.3F c S", $x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
+		);
+	}
+
+	/**
+	 * draw a part of an ellipse
+	 *
+	 * @param $x0
+	 * @param $y0
+	 * @param $astart
+	 * @param $afinish
+	 * @param $r1
+	 * @param int $r2
+	 * @param int $angle
+	 * @param int $nSeg
+	 */
+	function partEllipse($x0, $y0, $astart, $afinish, $r1, $r2 = 0, $angle = 0, $nSeg = 8)
+	{
+		$this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, false);
+	}
+
+	/**
+	 * draw a filled ellipse
+	 *
+	 * @param $x0
+	 * @param $y0
+	 * @param $r1
+	 * @param int $r2
+	 * @param int $angle
+	 * @param int $nSeg
+	 * @param int $astart
+	 * @param int $afinish
+	 */
+	function filledEllipse($x0, $y0, $r1, $r2 = 0, $angle = 0, $nSeg = 8, $astart = 0, $afinish = 360)
+	{
+		$this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, true, true);
+	}
+
+	/**
+	 * @param $x
+	 * @param $y
+	 */
+	function lineTo($x, $y)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F l", $x, $y));
+	}
+
+	/**
+	 * @param $x
+	 * @param $y
+	 */
+	function moveTo($x, $y)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F m", $x, $y));
+	}
+
+	/**
+	 * draw a bezier curve based on 4 control points
+	 *
+	 * @param $x1
+	 * @param $y1
+	 * @param $x2
+	 * @param $y2
+	 * @param $x3
+	 * @param $y3
+	 */
+	function curveTo($x1, $y1, $x2, $y2, $x3, $y3)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F %.3F %.3F c", $x1, $y1, $x2, $y2, $x3, $y3));
+	}
+
+	/**
+	 * draw a bezier curve based on 4 control points
+	 */
+	function quadTo($cpx, $cpy, $x, $y)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F v", $cpx, $cpy, $x, $y));
+	}
+
+	function closePath()
+	{
+		$this->addContent(' h');
+	}
+
+	function endPath()
+	{
+		$this->addContent(' n');
+	}
+
+	/**
+	 * draw an ellipse
+	 * note that the part and filled ellipse are just special cases of this function
+	 *
+	 * draws an ellipse in the current line style
+	 * centered at $x0,$y0, radii $r1,$r2
+	 * if $r2 is not set, then a circle is drawn
+	 * from $astart to $afinish, measured in degrees, running anti-clockwise from the right hand side of the ellipse.
+	 * nSeg is not allowed to be less than 2, as this will simply draw a line (and will even draw a
+	 * pretty crappy shape at 2, as we are approximating with bezier curves.
+	 *
+	 * @param $x0
+	 * @param $y0
+	 * @param $r1
+	 * @param int $r2
+	 * @param int $angle
+	 * @param int $nSeg
+	 * @param int $astart
+	 * @param int $afinish
+	 * @param bool $close
+	 * @param bool $fill
+	 * @param bool $stroke
+	 * @param bool $incomplete
+	 */
+	function ellipse(
+		$x0,
+		$y0,
+		$r1,
+		$r2 = 0,
+		$angle = 0,
+		$nSeg = 8,
+		$astart = 0,
+		$afinish = 360,
+		$close = true,
+		$fill = false,
+		$stroke = true,
+		$incomplete = false
+	) {
+		if ($r1 == 0) {
+			return;
+		}
+
+		if ($r2 == 0) {
+			$r2 = $r1;
+		}
+
+		if ($nSeg < 2) {
+			$nSeg = 2;
+		}
+
+		$astart = deg2rad((float)$astart);
+		$afinish = deg2rad((float)$afinish);
+		$totalAngle = $afinish - $astart;
+
+		$dt = $totalAngle / $nSeg;
+		$dtm = $dt / 3;
+
+		if ($angle != 0) {
+			$a = -1 * deg2rad((float)$angle);
+
+			$this->addContent(
+				sprintf("\n q %.3F %.3F %.3F %.3F %.3F %.3F cm", cos($a), -sin($a), sin($a), cos($a), $x0, $y0)
+			);
+
+			$x0 = 0;
+			$y0 = 0;
+		}
+
+		$t1 = $astart;
+		$a0 = $x0 + $r1 * cos($t1);
+		$b0 = $y0 + $r2 * sin($t1);
+		$c0 = -$r1 * sin($t1);
+		$d0 = $r2 * cos($t1);
+
+		if (!$incomplete) {
+			$this->addContent(sprintf("\n%.3F %.3F m ", $a0, $b0));
+		}
+
+		for ($i = 1; $i <= $nSeg; $i++) {
+			// draw this bit of the total curve
+			$t1 = $i * $dt + $astart;
+			$a1 = $x0 + $r1 * cos($t1);
+			$b1 = $y0 + $r2 * sin($t1);
+			$c1 = -$r1 * sin($t1);
+			$d1 = $r2 * cos($t1);
+
+			$this->addContent(
+				sprintf(
+					"\n%.3F %.3F %.3F %.3F %.3F %.3F c",
+					($a0 + $c0 * $dtm),
+					($b0 + $d0 * $dtm),
+					($a1 - $c1 * $dtm),
+					($b1 - $d1 * $dtm),
+					$a1,
+					$b1
+				)
+			);
+
+			$a0 = $a1;
+			$b0 = $b1;
+			$c0 = $c1;
+			$d0 = $d1;
+		}
+
+		if (!$incomplete) {
+			if ($fill) {
+				$this->addContent(' f');
+			}
+
+			if ($stroke) {
+				if ($close) {
+					$this->addContent(' s'); // small 's' signifies closing the path as well
+				} else {
+					$this->addContent(' S');
+				}
+			}
+		}
+
+		if ($angle != 0) {
+			$this->addContent(' Q');
+		}
+	}
+
+	/**
+	 * this sets the line drawing style.
+	 * width, is the thickness of the line in user units
+	 * cap is the type of cap to put on the line, values can be 'butt','round','square'
+	 *    where the diffference between 'square' and 'butt' is that 'square' projects a flat end past the
+	 *    end of the line.
+	 * join can be 'miter', 'round', 'bevel'
+	 * dash is an array which sets the dash pattern, is a series of length values, which are the lengths of the
+	 *   on and off dashes.
+	 *   (2) represents 2 on, 2 off, 2 on , 2 off ...
+	 *   (2,1) is 2 on, 1 off, 2 on, 1 off.. etc
+	 * phase is a modifier on the dash pattern which is used to shift the point at which the pattern starts.
+	 *
+	 * @param int $width
+	 * @param string $cap
+	 * @param string $join
+	 * @param string $dash
+	 * @param int $phase
+	 */
+	function setLineStyle($width = 1, $cap = '', $join = '', $dash = '', $phase = 0)
+	{
+		// this is quite inefficient in that it sets all the parameters whenever 1 is changed, but will fix another day
+		$string = '';
+
+		if ($width > 0) {
+			$string .= "$width w";
+		}
+
+		$ca = ['butt' => 0, 'round' => 1, 'square' => 2];
+
+		if (isset($ca[$cap])) {
+			$string .= " $ca[$cap] J";
+		}
+
+		$ja = ['miter' => 0, 'round' => 1, 'bevel' => 2];
+
+		if (isset($ja[$join])) {
+			$string .= " $ja[$join] j";
+		}
+
+		if (is_array($dash)) {
+			$string .= ' [ ' . implode(' ', $dash) . " ] $phase d";
+		}
+
+		$this->currentLineStyle = $string;
+		$this->addContent("\n$string");
+	}
+
+	/**
+	 * draw a polygon, the syntax for this is similar to the GD polygon command
+	 *
+	 * @param $p
+	 * @param $np
+	 * @param bool $f
+	 */
+	function polygon($p, $np, $f = false)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F m ", $p[0], $p[1]));
+
+		for ($i = 2; $i < $np * 2; $i = $i + 2) {
+			$this->addContent(sprintf("%.3F %.3F l ", $p[$i], $p[$i + 1]));
+		}
+
+		if ($f) {
+			$this->addContent(' f');
+		} else {
+			$this->addContent(' S');
+		}
+	}
+
+	/**
+	 * a filled rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
+	 * the coordinates of the upper-right corner
+	 *
+	 * @param $x1
+	 * @param $y1
+	 * @param $width
+	 * @param $height
+	 */
+	function filledRectangle($x1, $y1, $width, $height)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re f", $x1, $y1, $width, $height));
+	}
+
+	/**
+	 * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
+	 * the coordinates of the upper-right corner
+	 *
+	 * @param $x1
+	 * @param $y1
+	 * @param $width
+	 * @param $height
+	 */
+	function rectangle($x1, $y1, $width, $height)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re S", $x1, $y1, $width, $height));
+	}
+
+	/**
+	 * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
+	 * the coordinates of the upper-right corner
+	 *
+	 * @param $x1
+	 * @param $y1
+	 * @param $width
+	 * @param $height
+	 */
+	function rect($x1, $y1, $width, $height)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re", $x1, $y1, $width, $height));
+	}
+
+	function stroke(bool $close = false)
+	{
+		$this->addContent("\n" . ($close ? "s" : "S"));
+	}
+
+	function fill()
+	{
+		$this->addContent("\nf" . ($this->fillRule === "evenodd" ? "*" : ""));
+	}
+
+	function fillStroke(bool $close = false)
+	{
+		$this->addContent("\n" . ($close ? "b" : "B") . ($this->fillRule === "evenodd" ? "*" : ""));
+	}
+
+	/**
+	 * @param string $subtype
+	 * @param integer $x
+	 * @param integer $y
+	 * @param integer $w
+	 * @param integer $h
+	 * @return int
+	 */
+	function addXObject($subtype, $x, $y, $w, $h)
+	{
+		$id = ++$this->numObj;
+		$this->o_xobject($id, 'new', ['Subtype' => $subtype, 'bbox' => [$x, $y, $w, $h]]);
+		return $id;
+	}
+
+	/**
+	 * @param integer $numXObject
+	 * @param string $type
+	 * @param array $options
+	 */
+	function setXObjectResource($numXObject, $type, $options)
+	{
+		if (in_array($type, ['procset', 'font', 'xObject'])) {
+			$this->o_xobject($numXObject, $type, $options);
+		}
+	}
+
+	/**
+	 * add signature
+	 *
+	 * $fieldSigId = $cpdf->addFormField(Cpdf::ACROFORM_FIELD_SIG, 'Signature1', 0, 0, 0, 0, 0);
+	 *
+	 * $signatureId = $cpdf->addSignature([
+	 *   'signcert' => file_get_contents('dompdf.crt'),
+	 *   'privkey' => file_get_contents('dompdf.key'),
+	 *   'password' => 'password',
+	 *   'name' => 'DomPDF DEMO',
+	 *   'location' => 'Home',
+	 *   'reason' => 'First Form',
+	 *   'contactinfo' => 'info'
+	 * ]);
+	 * $cpdf->setFormFieldValue($fieldSigId, "$signatureId 0 R");
+	 *
+	 * @param string $signcert
+	 * @param string $privkey
+	 * @param string $password
+	 * @param string|null $name
+	 * @param string|null $location
+	 * @param string|null $reason
+	 * @param string|null $contactinfo
+	 * @return int
+	 */
+	function addSignature($signcert, $privkey, $password = '', $name = null, $location = null, $reason = null, $contactinfo = null) {
+		$sigId = ++$this->numObj;
+		$this->o_sig($sigId, 'new', [
+		  'SignCert' => $signcert,
+		  'PrivKey' => $privkey,
+		  'Password' => $password,
+		  'Name' => $name,
+		  'Location' => $location,
+		  'Reason' => $reason,
+		  'ContactInfo' => $contactinfo
+		]);
+
+		return $sigId;
+	}
+
+	/**
+	 * add field to form
+	 *
+	 * @param string $type ACROFORM_FIELD_*
+	 * @param string $name
+	 * @param $x0
+	 * @param $y0
+	 * @param $x1
+	 * @param $y1
+	 * @param integer $ff Field Flag ACROFORM_FIELD_*_*
+	 * @param float $size
+	 * @param array $color
+	 * @return int
+	 */
+	public function addFormField($type, $name, $x0, $y0, $x1, $y1, $ff = 0, $size = 10.0, $color = [0, 0, 0])
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$color = implode(' ', $color) . ' rg';
+
+		$currentFontNum = $this->currentFontNum;
+		$font = array_filter($this->objects[$this->currentNode]['info']['fonts'],
+		  function($item) use ($currentFontNum) { return $item['fontNum'] == $currentFontNum; });
+
+		$this->o_acroform($this->acroFormId, 'font',
+		  ['objNum' => $font[0]['objNum'], 'fontNum' => $font[0]['fontNum']]);
+
+		$fieldId = ++$this->numObj;
+		$this->o_field($fieldId, 'new', [
+		  'rect' => [$x0, $y0, $x1, $y1],
+		  'F' => 4,
+		  'FT' => "/$type",
+		  'T' => $name,
+		  'Ff' => $ff,
+		  'pageid' => $this->currentPage,
+		  'da' => "$color /F$this->currentFontNum " . sprintf('%.1F Tf ', $size)
+		]);
+
+		return $fieldId;
+	}
+
+	/**
+	 * set Field value
+	 *
+	 * @param integer $numFieldObj
+	 * @param string $value
+	 */
+	public function setFormFieldValue($numFieldObj, $value)
+	{
+		$this->o_field($numFieldObj, 'set', ['value' => $value]);
+	}
+
+	/**
+	 * set Field value (reference)
+	 *
+	 * @param integer $numFieldObj
+	 * @param integer $numObj Object number
+	 */
+	public function setFormFieldRefValue($numFieldObj, $numObj)
+	{
+		$this->o_field($numFieldObj, 'set', ['refvalue' => $numObj]);
+	}
+
+	/**
+	 * set Field Appearanc (reference)
+	 *
+	 * @param integer $numFieldObj
+	 * @param integer $normalNumObj
+	 * @param integer|null $rolloverNumObj
+	 * @param integer|null $downNumObj
+	 */
+	public function setFormFieldAppearance($numFieldObj, $normalNumObj, $rolloverNumObj = null, $downNumObj = null)
+	{
+		$appearance['N'] = $normalNumObj;
+
+		if ($rolloverNumObj !== null) {
+			$appearance['R'] = $rolloverNumObj;
+		}
+
+		if ($downNumObj !== null) {
+			$appearance['D'] = $downNumObj;
+		}
+
+		$this->o_field($numFieldObj, 'set', ['appearance' => $appearance]);
+	}
+
+	/**
+	 * set Choice Field option values
+	 *
+	 * @param integer $numFieldObj
+	 * @param array $value
+	 */
+	public function setFormFieldOpt($numFieldObj, $value)
+	{
+		$this->o_field($numFieldObj, 'set', ['options' => $value]);
+	}
+
+	/**
+	 * add form to document
+	 *
+	 * @param integer $sigFlags
+	 * @param boolean $needAppearances
+	 */
+	public function addForm($sigFlags = 0, $needAppearances = false)
+	{
+		$this->acroFormId = ++$this->numObj;
+		$this->o_acroform($this->acroFormId, 'new', [
+		  'NeedAppearances' => $needAppearances ? 'true' : 'false',
+		  'SigFlags' => $sigFlags
+		]);
+	}
+
+	/**
+	 * save the current graphic state
+	 */
+	function save()
+	{
+		// we must reset the color cache or it will keep bad colors after clipping
+		$this->currentColor = null;
+		$this->currentStrokeColor = null;
+		$this->addContent("\nq");
+	}
+
+	/**
+	 * restore the last graphic state
+	 */
+	function restore()
+	{
+		// we must reset the color cache or it will keep bad colors after clipping
+		$this->currentColor = null;
+		$this->currentStrokeColor = null;
+		$this->addContent("\nQ");
+	}
+
+	/**
+	 * draw a clipping rectangle, all the elements added after this will be clipped
+	 *
+	 * @param $x1
+	 * @param $y1
+	 * @param $width
+	 * @param $height
+	 */
+	function clippingRectangle($x1, $y1, $width, $height)
+	{
+		$this->save();
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re W n", $x1, $y1, $width, $height));
+	}
+
+	/**
+	 * draw a clipping rounded rectangle, all the elements added after this will be clipped
+	 *
+	 * @param $x1
+	 * @param $y1
+	 * @param $w
+	 * @param $h
+	 * @param $rTL
+	 * @param $rTR
+	 * @param $rBR
+	 * @param $rBL
+	 */
+	function clippingRectangleRounded($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL)
+	{
+		$this->save();
+
+		// start: top edge, left end
+		$this->addContent(sprintf("\n%.3F %.3F m ", $x1, $y1 - $rTL + $h));
+
+		// line: bottom edge, left end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1, $y1 + $rBL));
+
+		// curve: bottom-left corner
+		$this->ellipse($x1 + $rBL, $y1 + $rBL, $rBL, 0, 0, 8, 180, 270, false, false, false, true);
+
+		// line: right edge, bottom end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w - $rBR, $y1));
+
+		// curve: bottom-right corner
+		$this->ellipse($x1 + $w - $rBR, $y1 + $rBR, $rBR, 0, 0, 8, 270, 360, false, false, false, true);
+
+		// line: right edge, top end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w, $y1 + $h - $rTR));
+
+		// curve: bottom-right corner
+		$this->ellipse($x1 + $w - $rTR, $y1 + $h - $rTR, $rTR, 0, 0, 8, 0, 90, false, false, false, true);
+
+		// line: bottom edge, right end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rTL, $y1 + $h));
+
+		// curve: top-right corner
+		$this->ellipse($x1 + $rTL, $y1 + $h - $rTL, $rTL, 0, 0, 8, 90, 180, false, false, false, true);
+
+		// line: top edge, left end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rBL, $y1));
+
+		// Close & clip
+		$this->addContent(" W n");
+	}
+
+	/**
+	 * ends the last clipping shape
+	 */
+	function clippingEnd()
+	{
+		$this->restore();
+	}
+
+	/**
+	 * scale
+	 *
+	 * @param float $s_x scaling factor for width as percent
+	 * @param float $s_y scaling factor for height as percent
+	 * @param float $x   Origin abscissa
+	 * @param float $y   Origin ordinate
+	 */
+	function scale($s_x, $s_y, $x, $y)
+	{
+		$y = $this->currentPageSize["height"] - $y;
+
+		$tm = [
+			$s_x,
+			0,
+			0,
+			$s_y,
+			$x * (1 - $s_x),
+			$y * (1 - $s_y)
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * translate
+	 *
+	 * @param float $t_x movement to the right
+	 * @param float $t_y movement to the bottom
+	 */
+	function translate($t_x, $t_y)
+	{
+		$tm = [
+			1,
+			0,
+			0,
+			1,
+			$t_x,
+			-$t_y
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * rotate
+	 *
+	 * @param float $angle angle in degrees for counter-clockwise rotation
+	 * @param float $x     Origin abscissa
+	 * @param float $y     Origin ordinate
+	 */
+	function rotate($angle, $x, $y)
+	{
+		$y = $this->currentPageSize["height"] - $y;
+
+		$a = deg2rad($angle);
+		$cos_a = cos($a);
+		$sin_a = sin($a);
+
+		$tm = [
+			$cos_a,
+			-$sin_a,
+			$sin_a,
+			$cos_a,
+			$x - $sin_a * $y - $cos_a * $x,
+			$y - $cos_a * $y + $sin_a * $x,
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * skew
+	 *
+	 * @param float $angle_x
+	 * @param float $angle_y
+	 * @param float $x Origin abscissa
+	 * @param float $y Origin ordinate
+	 */
+	function skew($angle_x, $angle_y, $x, $y)
+	{
+		$y = $this->currentPageSize["height"] - $y;
+
+		$tan_x = tan(deg2rad($angle_x));
+		$tan_y = tan(deg2rad($angle_y));
+
+		$tm = [
+			1,
+			-$tan_y,
+			-$tan_x,
+			1,
+			$tan_x * $y,
+			$tan_y * $x,
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * apply graphic transformations
+	 *
+	 * @param array $tm transformation matrix
+	 */
+	function transform($tm)
+	{
+		$this->addContent(vsprintf("\n %.3F %.3F %.3F %.3F %.3F %.3F cm", $tm));
+	}
+
+	/**
+	 * add a new page to the document
+	 * this also makes the new page the current active object
+	 *
+	 * @param int $insert
+	 * @param int $id
+	 * @param string $pos
+	 * @return int
+	 */
+	function newPage($insert = 0, $id = 0, $pos = 'after')
+	{
+		// if there is a state saved, then go up the stack closing them
+		// then on the new page, re-open them with the right setings
+
+		if ($this->nStateStack) {
+			for ($i = $this->nStateStack; $i >= 1; $i--) {
+				$this->restoreState($i);
+			}
+		}
+
+		$this->numObj++;
+
+		if ($insert) {
+			// the id from the ezPdf class is the id of the contents of the page, not the page object itself
+			// query that object to find the parent
+			$rid = $this->objects[$id]['onPage'];
+			$opt = ['rid' => $rid, 'pos' => $pos];
+			$this->o_page($this->numObj, 'new', $opt);
+		} else {
+			$this->o_page($this->numObj, 'new');
+		}
+
+		// if there is a stack saved, then put that onto the page
+		if ($this->nStateStack) {
+			for ($i = 1; $i <= $this->nStateStack; $i++) {
+				$this->saveState($i);
+			}
+		}
+
+		// and if there has been a stroke or fill color set, then transfer them
+		if (isset($this->currentColor)) {
+			$this->setColor($this->currentColor, true);
+		}
+
+		if (isset($this->currentStrokeColor)) {
+			$this->setStrokeColor($this->currentStrokeColor, true);
+		}
+
+		// if there is a line style set, then put this in too
+		if (mb_strlen($this->currentLineStyle, '8bit')) {
+			$this->addContent("\n$this->currentLineStyle");
+		}
+
+		// the call to the o_page object set currentContents to the present page, so this can be returned as the page id
+		return $this->currentContents;
+	}
+
+	/**
+	 * Streams the PDF to the client.
+	 *
+	 * @param string $filename The filename to present to the client.
+	 * @param array $options Associative array: 'compress' => 1 or 0 (default 1); 'Attachment' => 1 or 0 (default 1).
+	 */
+	function stream($filename = "document.pdf", $options = [])
+	{
+		if (headers_sent()) {
+			die("Unable to stream pdf: headers already sent");
+		}
+
+		if (!isset($options["compress"])) $options["compress"] = true;
+		if (!isset($options["Attachment"])) $options["Attachment"] = true;
+
+		$debug = !$options['compress'];
+		$tmp = ltrim($this->output($debug));
+
+		header("Cache-Control: private");
+		header("Content-Type: application/pdf");
+		header("Content-Length: " . mb_strlen($tmp, "8bit"));
+
+		$filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
+		$attachment = $options["Attachment"] ? "attachment" : "inline";
+
+		$encoding = mb_detect_encoding($filename);
+		$fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding);
+		$fallbackfilename = str_replace("\"", "", $fallbackfilename);
+		$encodedfilename = rawurlencode($filename);
+
+		$contentDisposition = "Content-Disposition: $attachment; filename=\"$fallbackfilename\"";
+		if ($fallbackfilename !== $filename) {
+			$contentDisposition .= "; filename*=UTF-8''$encodedfilename";
+		}
+		header($contentDisposition);
+
+		echo $tmp;
+		flush();
+	}
+
+	/**
+	 * return the height in units of the current font in the given size
+	 *
+	 * @param $size
+	 * @return float|int
+	 */
+	function getFontHeight($size)
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$font = $this->fonts[$this->currentFont];
+
+		// for the current font, and the given size, what is the height of the font in user units
+		if (isset($font['Ascender']) && isset($font['Descender'])) {
+			$h = $font['Ascender'] - $font['Descender'];
+		} else {
+			$h = $font['FontBBox'][3] - $font['FontBBox'][1];
+		}
+
+		// have to adjust by a font offset for Windows fonts.  unfortunately it looks like
+		// the bounding box calculations are wrong and I don't know why.
+		if (isset($font['FontHeightOffset'])) {
+			// For CourierNew from Windows this needs to be -646 to match the
+			// Adobe native Courier font.
+			//
+			// For FreeMono from GNU this needs to be -337 to match the
+			// Courier font.
+			//
+			// Both have been added manually to the .afm and .ufm files.
+			$h += (int)$font['FontHeightOffset'];
+		}
+
+		return $size * $h / 1000;
+	}
+
+	/**
+	 * @param $size
+	 * @return float|int
+	 */
+	function getFontXHeight($size)
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$font = $this->fonts[$this->currentFont];
+
+		// for the current font, and the given size, what is the height of the font in user units
+		if (isset($font['XHeight'])) {
+			$xh = $font['Ascender'] - $font['Descender'];
+		} else {
+			$xh = $this->getFontHeight($size) / 2;
+		}
+
+		return $size * $xh / 1000;
+	}
+
+	/**
+	 * return the font descender, this will normally return a negative number
+	 * if you add this number to the baseline, you get the level of the bottom of the font
+	 * it is in the pdf user units
+	 *
+	 * @param $size
+	 * @return float|int
+	 */
+	function getFontDescender($size)
+	{
+		// note that this will most likely return a negative value
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		//$h = $this->fonts[$this->currentFont]['FontBBox'][1];
+		$h = $this->fonts[$this->currentFont]['Descender'];
+
+		return $size * $h / 1000;
+	}
+
+	/**
+	 * filter the text, this is applied to all text just before being inserted into the pdf document
+	 * it escapes the various things that need to be escaped, and so on
+	 *
+	 * @access private
+	 *
+	 * @param $text
+	 * @param bool $bom
+	 * @param bool $convert_encoding
+	 * @return string
+	 */
+	function filterText($text, $bom = true, $convert_encoding = true)
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		if ($convert_encoding) {
+			$cf = $this->currentFont;
+			if (isset($this->fonts[$cf]) && $this->fonts[$cf]['isUnicode']) {
+				$text = $this->utf8toUtf16BE($text, $bom);
+			} else {
+				//$text = html_entity_decode($text, ENT_QUOTES);
+				$text = mb_convert_encoding($text, self::$targetEncoding, 'UTF-8');
+			}
+		} else if ($bom) {
+			$text = $this->utf8toUtf16BE($text, $bom);
+		}
+
+		// the chr(13) substitution fixes a bug seen in TCPDF (bug #1421290)
+		return strtr($text, [')' => '\\)', '(' => '\\(', '\\' => '\\\\', chr(13) => '\r']);
+	}
+
+	/**
+	 * return array containing codepoints (UTF-8 character values) for the
+	 * string passed in.
+	 *
+	 * based on the excellent TCPDF code by Nicola Asuni and the
+	 * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
+	 *
+	 * @access private
+	 * @author Orion Richardson
+	 * @since  January 5, 2008
+	 *
+	 * @param string $text UTF-8 string to process
+	 *
+	 * @return array UTF-8 codepoints array for the string
+	 */
+	function utf8toCodePointsArray(&$text)
+	{
+		$length = mb_strlen($text, '8bit'); // http://www.php.net/manual/en/function.mb-strlen.php#77040
+		$unicode = []; // array containing unicode values
+		$bytes = []; // array containing single character byte sequences
+		$numbytes = 1; // number of octets needed to represent the UTF-8 character
+
+		for ($i = 0; $i < $length; $i++) {
+			$c = ord($text[$i]); // get one string character at time
+			if (count($bytes) === 0) { // get starting octect
+				if ($c <= 0x7F) {
+					$unicode[] = $c; // use the character "as is" because is ASCII
+					$numbytes = 1;
+				} elseif (($c >> 0x05) === 0x06) { // 2 bytes character (0x06 = 110 BIN)
+					$bytes[] = ($c - 0xC0) << 0x06;
+					$numbytes = 2;
+				} elseif (($c >> 0x04) === 0x0E) { // 3 bytes character (0x0E = 1110 BIN)
+					$bytes[] = ($c - 0xE0) << 0x0C;
+					$numbytes = 3;
+				} elseif (($c >> 0x03) === 0x1E) { // 4 bytes character (0x1E = 11110 BIN)
+					$bytes[] = ($c - 0xF0) << 0x12;
+					$numbytes = 4;
+				} else {
+					// use replacement character for other invalid sequences
+					$unicode[] = 0xFFFD;
+					$bytes = [];
+					$numbytes = 1;
+				}
+			} elseif (($c >> 0x06) === 0x02) { // bytes 2, 3 and 4 must start with 0x02 = 10 BIN
+				$bytes[] = $c - 0x80;
+				if (count($bytes) === $numbytes) {
+					// compose UTF-8 bytes to a single unicode value
+					$c = $bytes[0];
+					for ($j = 1; $j < $numbytes; $j++) {
+						$c += ($bytes[$j] << (($numbytes - $j - 1) * 0x06));
+					}
+					if ((($c >= 0xD800) and ($c <= 0xDFFF)) or ($c >= 0x10FFFF)) {
+						// The definition of UTF-8 prohibits encoding character numbers between
+						// U+D800 and U+DFFF, which are reserved for use with the UTF-16
+						// encoding form (as surrogate pairs) and do not directly represent
+						// characters.
+						$unicode[] = 0xFFFD; // use replacement character
+					} else {
+						$unicode[] = $c; // add char to array
+					}
+					// reset data for next char
+					$bytes = [];
+					$numbytes = 1;
+				}
+			} else {
+				// use replacement character for other invalid sequences
+				$unicode[] = 0xFFFD;
+				$bytes = [];
+				$numbytes = 1;
+			}
+		}
+
+		return $unicode;
+	}
+
+	/**
+	 * convert UTF-8 to UTF-16 with an additional byte order marker
+	 * at the front if required.
+	 *
+	 * based on the excellent TCPDF code by Nicola Asuni and the
+	 * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
+	 *
+	 * @access private
+	 * @author Orion Richardson
+	 * @since  January 5, 2008
+	 *
+	 * @param string  $text UTF-8 string to process
+	 * @param boolean $bom  whether to add the byte order marker
+	 *
+	 * @return string UTF-16 result string
+	 */
+	function utf8toUtf16BE(&$text, $bom = true)
+	{
+		$out = $bom ? "\xFE\xFF" : '';
+
+		$unicode = $this->utf8toCodePointsArray($text);
+		foreach ($unicode as $c) {
+			if ($c === 0xFFFD) {
+				$out .= "\xFF\xFD"; // replacement character
+			} elseif ($c < 0x10000) {
+				$out .= chr($c >> 0x08) . chr($c & 0xFF);
+			} else {
+				$c -= 0x10000;
+				$w1 = 0xD800 | ($c >> 0x10);
+				$w2 = 0xDC00 | ($c & 0x3FF);
+				$out .= chr($w1 >> 0x08) . chr($w1 & 0xFF) . chr($w2 >> 0x08) . chr($w2 & 0xFF);
+			}
+		}
+
+		return $out;
+	}
+
+	/**
+	 * given a start position and information about how text is to be laid out, calculate where
+	 * on the page the text will end
+	 *
+	 * @param $x
+	 * @param $y
+	 * @param $angle
+	 * @param $size
+	 * @param $wa
+	 * @param $text
+	 * @return array
+	 */
+	private function getTextPosition($x, $y, $angle, $size, $wa, $text)
+	{
+		// given this information return an array containing x and y for the end position as elements 0 and 1
+		$w = $this->getTextWidth($size, $text);
+
+		// need to adjust for the number of spaces in this text
+		$words = explode(' ', $text);
+		$nspaces = count($words) - 1;
+		$w += $wa * $nspaces;
+		$a = deg2rad((float)$angle);
+
+		return [cos($a) * $w + $x, -sin($a) * $w + $y];
+	}
+
+	/**
+	 * Callback method used by smallCaps
+	 *
+	 * @param array $matches
+	 *
+	 * @return string
+	 */
+	function toUpper($matches)
+	{
+		return mb_strtoupper($matches[0]);
+	}
+
+	function concatMatches($matches)
+	{
+		$str = "";
+		foreach ($matches as $match) {
+			$str .= $match[0];
+		}
+
+		return $str;
+	}
+
+	/**
+	 * register text for font subsetting
+	 *
+	 * @param $font
+	 * @param $text
+	 */
+	function registerText($font, $text)
+	{
+		if (!$this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
+			return;
+		}
+
+		if (!isset($this->stringSubsets[$font])) {
+			$this->stringSubsets[$font] = [];
+		}
+
+		$this->stringSubsets[$font] = array_unique(
+			array_merge($this->stringSubsets[$font], $this->utf8toCodePointsArray($text))
+		);
+	}
+
+	/**
+	 * add text to the document, at a specified location, size and angle on the page
+	 *
+	 * @param $x
+	 * @param $y
+	 * @param $size
+	 * @param $text
+	 * @param int $angle
+	 * @param int $wordSpaceAdjust
+	 * @param int $charSpaceAdjust
+	 * @param bool $smallCaps
+	 */
+	function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0, $charSpaceAdjust = 0, $smallCaps = false)
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$text = str_replace(["\r", "\n"], "", $text);
+
+		// if ($smallCaps) {
+		//     preg_match_all("/(\P{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
+		//     $lower = $this->concatMatches($matches);
+		//     d($lower);
+
+		//     preg_match_all("/(\p{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
+		//     $other = $this->concatMatches($matches);
+		//     d($other);
+
+		//     $text = preg_replace_callback("/\p{Ll}/u", array($this, "toUpper"), $text);
+		// }
+
+		// if there are any open callbacks, then they should be called, to show the start of the line
+		if ($this->nCallback > 0) {
+			for ($i = $this->nCallback; $i > 0; $i--) {
+				// call each function
+				$info = [
+					'x'         => $x,
+					'y'         => $y,
+					'angle'     => $angle,
+					'status'    => 'sol',
+					'p'         => $this->callback[$i]['p'],
+					'nCallback' => $this->callback[$i]['nCallback'],
+					'height'    => $this->callback[$i]['height'],
+					'descender' => $this->callback[$i]['descender']
+				];
+
+				$func = $this->callback[$i]['f'];
+				$this->$func($info);
+			}
+		}
+
+		if ($angle == 0) {
+			$this->addContent(sprintf("\nBT %.3F %.3F Td", $x, $y));
+		} else {
+			$a = deg2rad((float)$angle);
+			$this->addContent(
+				sprintf("\nBT %.3F %.3F %.3F %.3F %.3F %.3F Tm", cos($a), -sin($a), sin($a), cos($a), $x, $y)
+			);
+		}
+
+		if ($wordSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tw", $wordSpaceAdjust));
+		}
+
+		if ($charSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tc", $charSpaceAdjust));
+		}
+
+		$len = mb_strlen($text);
+		$start = 0;
+
+		if ($start < $len) {
+			$part = $text; // OAR - Don't need this anymore, given that $start always equals zero.  substr($text, $start);
+			$place_text = $this->filterText($part, false);
+			// modify unicode text so that extra word spacing is manually implemented (bug #)
+			if ($this->fonts[$this->currentFont]['isUnicode'] && $wordSpaceAdjust != 0) {
+				$space_scale = 1000 / $size;
+				$place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20" . (-round($space_scale * $wordSpaceAdjust)) . "\x00\x20(", $place_text);
+			}
+			$this->addContent(" /F$this->currentFontNum " . sprintf('%.1F Tf ', $size));
+			$this->addContent(" [($place_text)] TJ");
+		}
+
+		if ($wordSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tw", 0));
+		}
+
+		if ($charSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tc", 0));
+		}
+
+		$this->addContent(' ET');
+
+		// if there are any open callbacks, then they should be called, to show the end of the line
+		if ($this->nCallback > 0) {
+			for ($i = $this->nCallback; $i > 0; $i--) {
+				// call each function
+				$tmp = $this->getTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, $text);
+				$info = [
+					'x'         => $tmp[0],
+					'y'         => $tmp[1],
+					'angle'     => $angle,
+					'status'    => 'eol',
+					'p'         => $this->callback[$i]['p'],
+					'nCallback' => $this->callback[$i]['nCallback'],
+					'height'    => $this->callback[$i]['height'],
+					'descender' => $this->callback[$i]['descender']
+				];
+				$func = $this->callback[$i]['f'];
+				$this->$func($info);
+			}
+		}
+
+		if ($this->fonts[$this->currentFont]['isSubsetting']) {
+			$this->registerText($this->currentFont, $text);
+		}
+	}
+
+	/**
+	 * calculate how wide a given text string will be on a page, at a given size.
+	 * this can be called externally, but is also used by the other class functions
+	 *
+	 * @param float $size
+	 * @param string $text
+	 * @param float $word_spacing
+	 * @param float $char_spacing
+	 * @return float
+	 */
+	function getTextWidth($size, $text, $word_spacing = 0, $char_spacing = 0)
+	{
+		static $ord_cache = [];
+
+		// this function should not change any of the settings, though it will need to
+		// track any directives which change during calculation, so copy them at the start
+		// and put them back at the end.
+		$store_currentTextState = $this->currentTextState;
+
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$text = str_replace(["\r", "\n"], "", $text);
+
+		// converts a number or a float to a string so it can get the width
+		$text = "$text";
+
+		// hmm, this is where it all starts to get tricky - use the font information to
+		// calculate the width of each character, add them up and convert to user units
+		$w = 0;
+		$cf = $this->currentFont;
+		$current_font = $this->fonts[$cf];
+		$space_scale = 1000 / ($size > 0 ? $size : 1);
+
+		if ($current_font['isUnicode']) {
+			// for Unicode, use the code points array to calculate width rather
+			// than just the string itself
+			$unicode = $this->utf8toCodePointsArray($text);
+
+			foreach ($unicode as $char) {
+				// check if we have to replace character
+				if (isset($current_font['differences'][$char])) {
+					$char = $current_font['differences'][$char];
+				}
+
+				if (isset($current_font['C'][$char])) {
+					$char_width = $current_font['C'][$char];
+
+					// add the character width
+					$w += $char_width;
+
+					// add additional padding for space
+					if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
+						$w += $word_spacing * $space_scale;
+					}
+				}
+			}
+
+			// add additional char spacing
+			if ($char_spacing != 0) {
+				$w += $char_spacing * $space_scale * count($unicode);
+			}
+
+		} else {
+			// If CPDF is in Unicode mode but the current font does not support Unicode we need to convert the character set to Windows-1252
+			if ($this->isUnicode) {
+				$text = mb_convert_encoding($text, 'Windows-1252', 'UTF-8');
+			}
+
+			$len = mb_strlen($text, 'Windows-1252');
+
+			for ($i = 0; $i < $len; $i++) {
+				$c = $text[$i];
+				$char = isset($ord_cache[$c]) ? $ord_cache[$c] : ($ord_cache[$c] = ord($c));
+
+				// check if we have to replace character
+				if (isset($current_font['differences'][$char])) {
+					$char = $current_font['differences'][$char];
+				}
+
+				if (isset($current_font['C'][$char])) {
+					$char_width = $current_font['C'][$char];
+
+					// add the character width
+					$w += $char_width;
+
+					// add additional padding for space
+					if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
+						$w += $word_spacing * $space_scale;
+					}
+				}
+			}
+
+			// add additional char spacing
+			if ($char_spacing != 0) {
+				$w += $char_spacing * $space_scale * $len;
+			}
+		}
+
+		$this->currentTextState = $store_currentTextState;
+		$this->setCurrentFont();
+
+		return $w * $size / 1000;
+	}
+
+	/**
+	 * this will be called at a new page to return the state to what it was on the
+	 * end of the previous page, before the stack was closed down
+	 * This is to get around not being able to have open 'q' across pages
+	 *
+	 * @param int $pageEnd
+	 */
+	function saveState($pageEnd = 0)
+	{
+		if ($pageEnd) {
+			// this will be called at a new page to return the state to what it was on the
+			// end of the previous page, before the stack was closed down
+			// This is to get around not being able to have open 'q' across pages
+			$opt = $this->stateStack[$pageEnd];
+			// ok to use this as stack starts numbering at 1
+			$this->setColor($opt['col'], true);
+			$this->setStrokeColor($opt['str'], true);
+			$this->addContent("\n" . $opt['lin']);
+			//    $this->currentLineStyle = $opt['lin'];
+		} else {
+			$this->nStateStack++;
+			$this->stateStack[$this->nStateStack] = [
+				'col' => $this->currentColor,
+				'str' => $this->currentStrokeColor,
+				'lin' => $this->currentLineStyle
+			];
+		}
+
+		$this->save();
+	}
+
+	/**
+	 * restore a previously saved state
+	 *
+	 * @param int $pageEnd
+	 */
+	function restoreState($pageEnd = 0)
+	{
+		if (!$pageEnd) {
+			$n = $this->nStateStack;
+			$this->currentColor = $this->stateStack[$n]['col'];
+			$this->currentStrokeColor = $this->stateStack[$n]['str'];
+			$this->addContent("\n" . $this->stateStack[$n]['lin']);
+			$this->currentLineStyle = $this->stateStack[$n]['lin'];
+			$this->stateStack[$n] = null;
+			unset($this->stateStack[$n]);
+			$this->nStateStack--;
+		}
+
+		$this->restore();
+	}
+
+	/**
+	 * make a loose object, the output will go into this object, until it is closed, then will revert to
+	 * the current one.
+	 * this object will not appear until it is included within a page.
+	 * the function will return the object number
+	 *
+	 * @return int
+	 */
+	function openObject()
+	{
+		$this->nStack++;
+		$this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
+		// add a new object of the content type, to hold the data flow
+		$this->numObj++;
+		$this->o_contents($this->numObj, 'new');
+		$this->currentContents = $this->numObj;
+		$this->looseObjects[$this->numObj] = 1;
+
+		return $this->numObj;
+	}
+
+	/**
+	 * open an existing object for editing
+	 *
+	 * @param $id
+	 */
+	function reopenObject($id)
+	{
+		$this->nStack++;
+		$this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
+		$this->currentContents = $id;
+
+		// also if this object is the primary contents for a page, then set the current page to its parent
+		if (isset($this->objects[$id]['onPage'])) {
+			$this->currentPage = $this->objects[$id]['onPage'];
+		}
+	}
+
+	/**
+	 * close an object
+	 */
+	function closeObject()
+	{
+		// close the object, as long as there was one open in the first place, which will be indicated by
+		// an objectId on the stack.
+		if ($this->nStack > 0) {
+			$this->currentContents = $this->stack[$this->nStack]['c'];
+			$this->currentPage = $this->stack[$this->nStack]['p'];
+			$this->nStack--;
+			// easier to probably not worry about removing the old entries, they will be overwritten
+			// if there are new ones.
+		}
+	}
+
+	/**
+	 * stop an object from appearing on pages from this point on
+	 *
+	 * @param $id
+	 */
+	function stopObject($id)
+	{
+		// if an object has been appearing on pages up to now, then stop it, this page will
+		// be the last one that could contain it.
+		if (isset($this->addLooseObjects[$id])) {
+			$this->addLooseObjects[$id] = '';
+		}
+	}
+
+	/**
+	 * after an object has been created, it wil only show if it has been added, using this function.
+	 *
+	 * @param $id
+	 * @param string $options
+	 */
+	function addObject($id, $options = 'add')
+	{
+		// add the specified object to the page
+		if (isset($this->looseObjects[$id]) && $this->currentContents != $id) {
+			// then it is a valid object, and it is not being added to itself
+			switch ($options) {
+				case 'all':
+					// then this object is to be added to this page (done in the next block) and
+					// all future new pages.
+					$this->addLooseObjects[$id] = 'all';
+
+				case 'add':
+					if (isset($this->objects[$this->currentContents]['onPage'])) {
+						// then the destination contents is the primary for the page
+						// (though this object is actually added to that page)
+						$this->o_page($this->objects[$this->currentContents]['onPage'], 'content', $id);
+					}
+					break;
+
+				case 'even':
+					$this->addLooseObjects[$id] = 'even';
+					$pageObjectId = $this->objects[$this->currentContents]['onPage'];
+					if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 0) {
+						$this->addObject($id);
+						// hacky huh :)
+					}
+					break;
+
+				case 'odd':
+					$this->addLooseObjects[$id] = 'odd';
+					$pageObjectId = $this->objects[$this->currentContents]['onPage'];
+					if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 1) {
+						$this->addObject($id);
+						// hacky huh :)
+					}
+					break;
+
+				case 'next':
+					$this->addLooseObjects[$id] = 'all';
+					break;
+
+				case 'nexteven':
+					$this->addLooseObjects[$id] = 'even';
+					break;
+
+				case 'nextodd':
+					$this->addLooseObjects[$id] = 'odd';
+					break;
+			}
+		}
+	}
+
+	/**
+	 * return a storable representation of a specific object
+	 *
+	 * @param $id
+	 * @return string|null
+	 */
+	function serializeObject($id)
+	{
+		if (array_key_exists($id, $this->objects)) {
+			return serialize($this->objects[$id]);
+		}
+
+		return null;
+	}
+
+	/**
+	 * restore an object from its stored representation. Returns its new object id.
+	 *
+	 * @param $obj
+	 * @return int
+	 */
+	function restoreSerializedObject($obj)
+	{
+		$obj_id = $this->openObject();
+		$this->objects[$obj_id] = unserialize($obj);
+		$this->closeObject();
+
+		return $obj_id;
+	}
+
+	/**
+	 * Embeds a file inside the PDF
+	 *
+	 * @param string $filepath path to the file to store inside the PDF
+	 * @param string $embeddedFilename the filename displayed in the list of embedded files
+	 * @param string $description a description in the list of embedded files
+	 */
+	public function addEmbeddedFile(string $filepath, string $embeddedFilename, string $description): void
+	{
+		$this->numObj++;
+		$this->o_embedded_file_dictionary(
+			$this->numObj,
+			'new',
+			[
+				'filepath' => $filepath,
+				'filename' => $embeddedFilename,
+				'description' => $description
+			]
+		);
+	}
+
+	/**
+	 * add content to the documents info object
+	 *
+	 * @param $label
+	 * @param int $value
+	 */
+	function addInfo($label, $value = 0)
+	{
+		// this will only work if the label is one of the valid ones.
+		// modify this so that arrays can be passed as well.
+		// if $label is an array then assume that it is key => value pairs
+		// else assume that they are both scalar, anything else will probably error
+		if (is_array($label)) {
+			foreach ($label as $l => $v) {
+				$this->o_info($this->infoObject, $l, $v);
+			}
+		} else {
+			$this->o_info($this->infoObject, $label, $value);
+		}
+	}
+
+	/**
+	 * set the viewer preferences of the document, it is up to the browser to obey these.
+	 *
+	 * @param $label
+	 * @param int $value
+	 */
+	function setPreferences($label, $value = 0)
+	{
+		// this will only work if the label is one of the valid ones.
+		if (is_array($label)) {
+			foreach ($label as $l => $v) {
+				$this->o_catalog($this->catalogId, 'viewerPreferences', [$l => $v]);
+			}
+		} else {
+			$this->o_catalog($this->catalogId, 'viewerPreferences', [$label => $value]);
+		}
+	}
+
+	/**
+	 * extract an integer from a position in a byte stream
+	 *
+	 * @param $data
+	 * @param $pos
+	 * @param $num
+	 * @return int
+	 */
+	private function getBytes(&$data, $pos, $num)
+	{
+		// return the integer represented by $num bytes from $pos within $data
+		$ret = 0;
+		for ($i = 0; $i < $num; $i++) {
+			$ret *= 256;
+			$ret += ord($data[$pos + $i]);
+		}
+
+		return $ret;
+	}
+
+	/**
+	 * Check if image already added to pdf image directory.
+	 * If yes, need not to create again (pass empty data)
+	 *
+	 * @param string $imgname
+	 * @return bool
+	 */
+	function image_iscached($imgname)
+	{
+		return isset($this->imagelist[$imgname]);
+	}
+
+	/**
+	 * add a PNG image into the document, from a GD object
+	 * this should work with remote files
+	 *
+	 * @param \GdImage|resource $img A GD resource
+	 * @param string $file The PNG file
+	 * @param float $x X position
+	 * @param float $y Y position
+	 * @param float $w Width
+	 * @param float $h Height
+	 * @param bool $is_mask true if the image is a mask
+	 * @param bool $mask true if the image is masked
+	 * @throws Exception
+	 */
+	function addImagePng(&$img, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
+	{
+		if (!function_exists("imagepng")) {
+			throw new \Exception("The PHP GD extension is required, but is not installed.");
+		}
+
+		//if already cached, need not to read again
+		if (isset($this->imagelist[$file])) {
+			$data = null;
+		} else {
+			// Example for transparency handling on new image. Retain for current image
+			// $tIndex = imagecolortransparent($img);
+			// if ($tIndex > 0) {
+			//   $tColor    = imagecolorsforindex($img, $tIndex);
+			//   $new_tIndex    = imagecolorallocate($new_img, $tColor['red'], $tColor['green'], $tColor['blue']);
+			//   imagefill($new_img, 0, 0, $new_tIndex);
+			//   imagecolortransparent($new_img, $new_tIndex);
+			// }
+			// blending mode (literal/blending) on drawing into current image. not relevant when not saved or not drawn
+			//imagealphablending($img, true);
+
+			//default, but explicitely set to ensure pdf compatibility
+			imagesavealpha($img, false/*!$is_mask && !$mask*/);
+
+			$error = 0;
+			//DEBUG_IMG_TEMP
+			//debugpng
+			if (defined("DEBUGPNG") && DEBUGPNG) {
+				print '[addImagePng ' . $file . ']';
+			}
+
+			ob_start();
+			@imagepng($img);
+			$data = ob_get_clean();
+
+			if ($data == '') {
+				$error = 1;
+				$errormsg = 'trouble writing file from GD';
+				//DEBUG_IMG_TEMP
+				//debugpng
+				if (defined("DEBUGPNG") && DEBUGPNG) {
+					print 'trouble writing file from GD';
+				}
+			}
+
+			if ($error) {
+				$this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+
+				return;
+			}
+		}  //End isset($this->imagelist[$file]) (png Duplicate removal)
+
+		$this->addPngFromBuf($data, $file, $x, $y, $w, $h, $is_mask, $mask);
+	}
+
+	/**
+	 * @param $file
+	 * @param $x
+	 * @param $y
+	 * @param $w
+	 * @param $h
+	 * @param $byte
+	 */
+	protected function addImagePngAlpha($file, $x, $y, $w, $h, $byte)
+	{
+		// generate images
+		$img = imagecreatefrompng($file);
+
+		if ($img === false) {
+			return;
+		}
+
+		// FIXME The pixel transformation doesn't work well with 8bit PNGs
+		$eight_bit = ($byte & 4) !== 4;
+
+		$wpx = imagesx($img);
+		$hpx = imagesy($img);
+
+		imagesavealpha($img, false);
+
+		// create temp alpha file
+		$tempfile_alpha = @tempnam($this->tmp, "cpdf_img_");
+		@unlink($tempfile_alpha);
+		$tempfile_alpha = "$tempfile_alpha.png";
+
+		// create temp plain file
+		$tempfile_plain = @tempnam($this->tmp, "cpdf_img_");
+		@unlink($tempfile_plain);
+		$tempfile_plain = "$tempfile_plain.png";
+
+		$imgalpha = imagecreate($wpx, $hpx);
+		imagesavealpha($imgalpha, false);
+
+		// generate gray scale palette (0 -> 255)
+		for ($c = 0; $c < 256; ++$c) {
+			imagecolorallocate($imgalpha, $c, $c, $c);
+		}
+
+		// Use PECL gmagick + Graphics Magic to process transparent PNG images
+		if (extension_loaded("gmagick")) {
+			$gmagick = new \Gmagick($file);
+			$gmagick->setimageformat('png');
+
+			// Get opacity channel (negative of alpha channel)
+			$alpha_channel_neg = clone $gmagick;
+			$alpha_channel_neg->separateimagechannel(\Gmagick::CHANNEL_OPACITY);
+
+			// Negate opacity channel
+			$alpha_channel = new \Gmagick();
+			$alpha_channel->newimage($wpx, $hpx, "#FFFFFF", "png");
+			$alpha_channel->compositeimage($alpha_channel_neg, \Gmagick::COMPOSITE_DIFFERENCE, 0, 0);
+			$alpha_channel->separateimagechannel(\Gmagick::CHANNEL_RED);
+			$alpha_channel->writeimage($tempfile_alpha);
+
+			// Cast to 8bit+palette
+			$imgalpha_ = imagecreatefrompng($tempfile_alpha);
+			imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
+			imagedestroy($imgalpha_);
+			imagepng($imgalpha, $tempfile_alpha);
+
+			// Make opaque image
+			$color_channels = new \Gmagick();
+			$color_channels->newimage($wpx, $hpx, "#FFFFFF", "png");
+			$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYRED, 0, 0);
+			$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYGREEN, 0, 0);
+			$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYBLUE, 0, 0);
+			$color_channels->writeimage($tempfile_plain);
+
+			$imgplain = imagecreatefrompng($tempfile_plain);
+		}
+		// Use PECL imagick + ImageMagic to process transparent PNG images
+		elseif (extension_loaded("imagick")) {
+			// Native cloning was added to pecl-imagick in svn commit 263814
+			// the first version containing it was 3.0.1RC1
+			static $imagickClonable = null;
+			if ($imagickClonable === null) {
+				$imagickClonable = true;
+				if (defined('Imagick::IMAGICK_EXTVER')) {
+					$imagickVersion = \Imagick::IMAGICK_EXTVER;
+				} else {
+					$imagickVersion = '0';
+				}
+				if (version_compare($imagickVersion, '0.0.1', '>=')) {
+					$imagickClonable = version_compare($imagickVersion, '3.0.1rc1', '>=');
+				}
+			}
+
+			$imagick = new \Imagick($file);
+			$imagick->setFormat('png');
+
+			// Get opacity channel (negative of alpha channel)
+			if ($imagick->getImageAlphaChannel() !== 0) {
+				$alpha_channel = $imagickClonable ? clone $imagick : $imagick->clone();
+				$alpha_channel->separateImageChannel(\Imagick::CHANNEL_ALPHA);
+				// Since ImageMagick7 negate invert transparency as default
+				if (\Imagick::getVersion()['versionNumber'] < 1800) {
+					$alpha_channel->negateImage(true);
+				}
+				$alpha_channel->writeImage($tempfile_alpha);
+
+				// Cast to 8bit+palette
+				$imgalpha_ = imagecreatefrompng($tempfile_alpha);
+				imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
+				imagedestroy($imgalpha_);
+				imagepng($imgalpha, $tempfile_alpha);
+			} else {
+				$tempfile_alpha = null;
+			}
+
+			// Make opaque image
+			$color_channels = new \Imagick();
+			$color_channels->newImage($wpx, $hpx, "#FFFFFF", "png");
+			$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYRED, 0, 0);
+			$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYGREEN, 0, 0);
+			$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYBLUE, 0, 0);
+			$color_channels->writeImage($tempfile_plain);
+
+			$imgplain = imagecreatefrompng($tempfile_plain);
+		} else {
+			// allocated colors cache
+			$allocated_colors = [];
+
+			// extract alpha channel
+			for ($xpx = 0; $xpx < $wpx; ++$xpx) {
+				for ($ypx = 0; $ypx < $hpx; ++$ypx) {
+					$color = imagecolorat($img, $xpx, $ypx);
+					$col = imagecolorsforindex($img, $color);
+					$alpha = $col['alpha'];
+
+					if ($eight_bit) {
+						// with gamma correction
+						$gammacorr = 2.2;
+						$pixel = round(pow((((127 - $alpha) * 255 / 127) / 255), $gammacorr) * 255);
+					} else {
+						// without gamma correction
+						$pixel = (127 - $alpha) * 2;
+
+						$key = $col['red'] . $col['green'] . $col['blue'];
+
+						if (!isset($allocated_colors[$key])) {
+							$pixel_img = imagecolorallocate($img, $col['red'], $col['green'], $col['blue']);
+							$allocated_colors[$key] = $pixel_img;
+						} else {
+							$pixel_img = $allocated_colors[$key];
+						}
+
+						imagesetpixel($img, $xpx, $ypx, $pixel_img);
+					}
+
+					imagesetpixel($imgalpha, $xpx, $ypx, $pixel);
+				}
+			}
+
+			// extract image without alpha channel
+			$imgplain = imagecreatetruecolor($wpx, $hpx);
+			imagecopy($imgplain, $img, 0, 0, 0, 0, $wpx, $hpx);
+			imagedestroy($img);
+
+			imagepng($imgalpha, $tempfile_alpha);
+			imagepng($imgplain, $tempfile_plain);
+		}
+
+		$this->imageAlphaList[$file] = [$tempfile_alpha, $tempfile_plain];
+
+		// embed mask image
+		if ($tempfile_alpha) {
+			$this->addImagePng($imgalpha, $tempfile_alpha, $x, $y, $w, $h, true);
+			imagedestroy($imgalpha);
+			$this->imageCache[] = $tempfile_alpha;
+		}
+
+		// embed image, masked with previously embedded mask
+		$this->addImagePng($imgplain, $tempfile_plain, $x, $y, $w, $h, false, ($tempfile_alpha !== null));
+		imagedestroy($imgplain);
+		$this->imageCache[] = $tempfile_plain;
+	}
+
+	/**
+	 * add a PNG image into the document, from a file
+	 * this should work with remote files
+	 *
+	 * @param $file
+	 * @param $x
+	 * @param $y
+	 * @param int $w
+	 * @param int $h
+	 * @throws Exception
+	 */
+	function addPngFromFile($file, $x, $y, $w = 0, $h = 0)
+	{
+		if (!function_exists("imagecreatefrompng")) {
+			throw new \Exception("The PHP GD extension is required, but is not installed.");
+		}
+
+		if (isset($this->imageAlphaList[$file])) {
+			[$alphaFile, $plainFile] = $this->imageAlphaList[$file];
+
+			if ($alphaFile) {
+				$img = null;
+				$this->addImagePng($img, $alphaFile, $x, $y, $w, $h, true);
+			}
+
+			$img = null;
+			$this->addImagePng($img, $plainFile, $x, $y, $w, $h, false, ($plainFile !== null));
+			return;
+		}
+
+		//if already cached, need not to read again
+		if (isset($this->imagelist[$file])) {
+			$img = null;
+		} else {
+			$info = file_get_contents($file, false, null, 24, 5);
+			$meta = unpack("CbitDepth/CcolorType/CcompressionMethod/CfilterMethod/CinterlaceMethod", $info);
+			$bit_depth = $meta["bitDepth"];
+			$color_type = $meta["colorType"];
+
+			// http://www.w3.org/TR/PNG/#11IHDR
+			// 3 => indexed
+			// 4 => greyscale with alpha
+			// 6 => fullcolor with alpha
+			$is_alpha = in_array($color_type, [4, 6]) || ($color_type == 3 && $bit_depth != 4);
+
+			if ($is_alpha) { // exclude grayscale alpha
+				$this->addImagePngAlpha($file, $x, $y, $w, $h, $color_type);
+				return;
+			}
+
+			//png files typically contain an alpha channel.
+			//pdf file format or class.pdf does not support alpha blending.
+			//on alpha blended images, more transparent areas have a color near black.
+			//This appears in the result on not storing the alpha channel.
+			//Correct would be the box background image or its parent when transparent.
+			//But this would make the image dependent on the background.
+			//Therefore create an image with white background and copy in
+			//A more natural background than black is white.
+			//Therefore create an empty image with white background and merge the
+			//image in with alpha blending.
+			$imgtmp = @imagecreatefrompng($file);
+			if (!$imgtmp) {
+				return;
+			}
+			$sx = imagesx($imgtmp);
+			$sy = imagesy($imgtmp);
+			$img = imagecreatetruecolor($sx, $sy);
+			imagealphablending($img, true);
+
+			// @todo is it still needed ??
+			$ti = imagecolortransparent($imgtmp);
+			if ($ti >= 0) {
+				$tc = imagecolorsforindex($imgtmp, $ti);
+				$ti = imagecolorallocate($img, $tc['red'], $tc['green'], $tc['blue']);
+				imagefill($img, 0, 0, $ti);
+				imagecolortransparent($img, $ti);
+			} else {
+				imagefill($img, 1, 1, imagecolorallocate($img, 255, 255, 255));
+			}
+
+			imagecopy($img, $imgtmp, 0, 0, 0, 0, $sx, $sy);
+			imagedestroy($imgtmp);
+		}
+		$this->addImagePng($img, $file, $x, $y, $w, $h);
+
+		if ($img) {
+			imagedestroy($img);
+		}
+	}
+
+	/**
+	 * add a PNG image into the document, from a memory buffer of the file
+	 *
+	 * @param $data
+	 * @param $file
+	 * @param $x
+	 * @param $y
+	 * @param float $w
+	 * @param float $h
+	 * @param bool $is_mask
+	 * @param null $mask
+	 */
+	function addPngFromBuf(&$data, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
+	{
+		if (isset($this->imagelist[$file])) {
+			$data = null;
+			$info['width'] = $this->imagelist[$file]['w'];
+			$info['height'] = $this->imagelist[$file]['h'];
+			$label = $this->imagelist[$file]['label'];
+		} else {
+			if ($data == null) {
+				$this->addMessage('addPngFromBuf error - data not present!');
+
+				return;
+			}
+
+			$error = 0;
+
+			if (!$error) {
+				$header = chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10);
+
+				if (mb_substr($data, 0, 8, '8bit') != $header) {
+					$error = 1;
+
+					if (defined("DEBUGPNG") && DEBUGPNG) {
+						print '[addPngFromFile this file does not have a valid header ' . $file . ']';
+					}
+
+					$errormsg = 'this file does not have a valid header';
+				}
+			}
+
+			if (!$error) {
+				// set pointer
+				$p = 8;
+				$len = mb_strlen($data, '8bit');
+
+				// cycle through the file, identifying chunks
+				$haveHeader = 0;
+				$info = [];
+				$idata = '';
+				$pdata = '';
+
+				while ($p < $len) {
+					$chunkLen = $this->getBytes($data, $p, 4);
+					$chunkType = mb_substr($data, $p + 4, 4, '8bit');
+
+					switch ($chunkType) {
+						case 'IHDR':
+							// this is where all the file information comes from
+							$info['width'] = $this->getBytes($data, $p + 8, 4);
+							$info['height'] = $this->getBytes($data, $p + 12, 4);
+							$info['bitDepth'] = ord($data[$p + 16]);
+							$info['colorType'] = ord($data[$p + 17]);
+							$info['compressionMethod'] = ord($data[$p + 18]);
+							$info['filterMethod'] = ord($data[$p + 19]);
+							$info['interlaceMethod'] = ord($data[$p + 20]);
+
+							//print_r($info);
+							$haveHeader = 1;
+							if ($info['compressionMethod'] != 0) {
+								$error = 1;
+
+								//debugpng
+								if (defined("DEBUGPNG") && DEBUGPNG) {
+									print '[addPngFromFile unsupported compression method ' . $file . ']';
+								}
+
+								$errormsg = 'unsupported compression method';
+							}
+
+							if ($info['filterMethod'] != 0) {
+								$error = 1;
+
+								//debugpng
+								if (defined("DEBUGPNG") && DEBUGPNG) {
+									print '[addPngFromFile unsupported filter method ' . $file . ']';
+								}
+
+								$errormsg = 'unsupported filter method';
+							}
+							break;
+
+						case 'PLTE':
+							$pdata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
+							break;
+
+						case 'IDAT':
+							$idata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
+							break;
+
+						case 'tRNS':
+							//this chunk can only occur once and it must occur after the PLTE chunk and before IDAT chunk
+							//print "tRNS found, color type = ".$info['colorType']."\n";
+							$transparency = [];
+
+							switch ($info['colorType']) {
+								// indexed color, rbg
+								case 3:
+									/* corresponding to entries in the plte chunk
                                      Alpha for palette index 0: 1 byte
                                      Alpha for palette index 1: 1 byte
                                      ...etc...
                                     */
-                                    // there will be one entry for each palette entry. up until the last non-opaque entry.
-                                    // set up an array, stretching over all palette entries which will be o (opaque) or 1 (transparent)
-                                    $transparency['type'] = 'indexed';
-                                    $trans = 0;
-
-                                    for ($i = $chunkLen; $i >= 0; $i--) {
-                                        if (ord($data[$p + 8 + $i]) == 0) {
-                                            $trans = $i;
-                                        }
-                                    }
-
-                                    $transparency['data'] = $trans;
-                                    break;
-
-                                // grayscale
-                                case 0:
-                                    /* corresponding to entries in the plte chunk
+									// there will be one entry for each palette entry. up until the last non-opaque entry.
+									// set up an array, stretching over all palette entries which will be o (opaque) or 1 (transparent)
+									$transparency['type'] = 'indexed';
+									$trans = 0;
+
+									for ($i = $chunkLen; $i >= 0; $i--) {
+										if (ord($data[$p + 8 + $i]) == 0) {
+											$trans = $i;
+										}
+									}
+
+									$transparency['data'] = $trans;
+									break;
+
+								// grayscale
+								case 0:
+									/* corresponding to entries in the plte chunk
                                      Gray: 2 bytes, range 0 .. (2^bitdepth)-1
                                     */
-                                    //            $transparency['grayscale'] = $this->PRVT_getBytes($data,$p+8,2); // g = grayscale
-                                    $transparency['type'] = 'indexed';
-                                    $transparency['data'] = ord($data[$p + 8 + 1]);
-                                    break;
-
-                                // truecolor
-                                case 2:
-                                    /* corresponding to entries in the plte chunk
+									//            $transparency['grayscale'] = $this->PRVT_getBytes($data,$p+8,2); // g = grayscale
+									$transparency['type'] = 'indexed';
+									$transparency['data'] = ord($data[$p + 8 + 1]);
+									break;
+
+								// truecolor
+								case 2:
+									/* corresponding to entries in the plte chunk
                                      Red: 2 bytes, range 0 .. (2^bitdepth)-1
                                      Green: 2 bytes, range 0 .. (2^bitdepth)-1
                                      Blue: 2 bytes, range 0 .. (2^bitdepth)-1
                                     */
-                                    $transparency['r'] = $this->getBytes($data, $p + 8, 2);
-                                    // r from truecolor
-                                    $transparency['g'] = $this->getBytes($data, $p + 10, 2);
-                                    // g from truecolor
-                                    $transparency['b'] = $this->getBytes($data, $p + 12, 2);
-                                    // b from truecolor
-
-                                    $transparency['type'] = 'color-key';
-                                    break;
-
-                                //unsupported transparency type
-                                default:
-                                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                                        print '[addPngFromFile unsupported transparency type ' . $file . ']';
-                                    }
-                                    break;
-                            }
-
-                            // KS End new code
-                            break;
-
-                        default:
-                            break;
-                    }
-
-                    $p += $chunkLen + 12;
-                }
-
-                if (!$haveHeader) {
-                    $error = 1;
-
-                    //debugpng
-                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile information header is missing ' . $file . ']';
-                    }
-
-                    $errormsg = 'information header is missing';
-                }
-
-                if (isset($info['interlaceMethod']) && $info['interlaceMethod']) {
-                    $error = 1;
-
-                    //debugpng
-                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile no support for interlaced images in pdf ' . $file . ']';
-                    }
-
-                    $errormsg = 'There appears to be no support for interlaced images in pdf.';
-                }
-            }
-
-            if (!$error && $info['bitDepth'] > 8) {
-                $error = 1;
-
-                //debugpng
-                if (defined("DEBUGPNG") && DEBUGPNG) {
-                    print '[addPngFromFile bit depth of 8 or less is supported ' . $file . ']';
-                }
-
-                $errormsg = 'only bit depth of 8 or less is supported';
-            }
-
-            if (!$error) {
-                switch ($info['colorType']) {
-                    case 3:
-                        $color = 'DeviceRGB';
-                        $ncolor = 1;
-                        break;
-
-                    case 2:
-                        $color = 'DeviceRGB';
-                        $ncolor = 3;
-                        break;
-
-                    case 0:
-                        $color = 'DeviceGray';
-                        $ncolor = 1;
-                        break;
-
-                    default:
-                        $error = 1;
-
-                        //debugpng
-                        if (defined("DEBUGPNG") && DEBUGPNG) {
-                            print '[addPngFromFile alpha channel not supported: ' . $info['colorType'] . ' ' . $file . ']';
-                        }
-
-                        $errormsg = 'transparency alpha channel not supported, transparency only supported for palette images.';
-                }
-            }
-
-            if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
-
-                return;
-            }
-
-            //print_r($info);
-            // so this image is ok... add it in.
-            $this->numImages++;
-            $im = $this->numImages;
-            $label = "I$im";
-            $this->numObj++;
-
-            //  $this->o_image($this->numObj,'new',array('label' => $label,'data' => $idata,'iw' => $w,'ih' => $h,'type' => 'png','ic' => $info['width']));
-            $options = [
-                'label'            => $label,
-                'data'             => $idata,
-                'bitsPerComponent' => $info['bitDepth'],
-                'pdata'            => $pdata,
-                'iw'               => $info['width'],
-                'ih'               => $info['height'],
-                'type'             => 'png',
-                'color'            => $color,
-                'ncolor'           => $ncolor,
-                'masked'           => $mask,
-                'isMask'           => $is_mask
-            ];
-
-            if (isset($transparency)) {
-                $options['transparency'] = $transparency;
-            }
-
-            $this->o_image($this->numObj, 'new', $options);
-            $this->imagelist[$file] = ['label' => $label, 'w' => $info['width'], 'h' => $info['height']];
-        }
-
-        if ($is_mask) {
-            return;
-        }
-
-        if ($w <= 0 && $h <= 0) {
-            $w = $info['width'];
-            $h = $info['height'];
-        }
-
-        if ($w <= 0) {
-            $w = $h / $info['height'] * $info['width'];
-        }
-
-        if ($h <= 0) {
-            $h = $w * $info['height'] / $info['width'];
-        }
-
-        $this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ", $w, $h, $x, $y, $label));
-    }
-
-    /**
-     * add a JPEG image into the document, from a file
-     *
-     * @param $img
-     * @param $x
-     * @param $y
-     * @param int $w
-     * @param int $h
-     */
-    function addJpegFromFile($img, $x, $y, $w = 0, $h = 0)
-    {
-        // attempt to add a jpeg image straight from a file, using no GD commands
-        // note that this function is unable to operate on a remote file.
-
-        if (!file_exists($img)) {
-            return;
-        }
-
-        if ($this->image_iscached($img)) {
-            $data = null;
-            $imageWidth = $this->imagelist[$img]['w'];
-            $imageHeight = $this->imagelist[$img]['h'];
-            $channels = $this->imagelist[$img]['c'];
-        } else {
-            $tmp = getimagesize($img);
-            $imageWidth = $tmp[0];
-            $imageHeight = $tmp[1];
-
-            if (isset($tmp['channels'])) {
-                $channels = $tmp['channels'];
-            } else {
-                $channels = 3;
-            }
-
-            $data = file_get_contents($img);
-        }
-
-        if ($w <= 0 && $h <= 0) {
-            $w = $imageWidth;
-        }
-
-        if ($w == 0) {
-            $w = $h / $imageHeight * $imageWidth;
-        }
-
-        if ($h == 0) {
-            $h = $w * $imageHeight / $imageWidth;
-        }
-
-        $this->addJpegImage_common($data, $img, $imageWidth, $imageHeight, $x, $y, $w, $h, $channels);
-    }
-
-    /**
-     * common code used by the two JPEG adding functions
-     * @param $data
-     * @param $imgname
-     * @param $imageWidth
-     * @param $imageHeight
-     * @param $x
-     * @param $y
-     * @param int $w
-     * @param int $h
-     * @param int $channels
-     */
-    private function addJpegImage_common(
-        &$data,
-        $imgname,
-        $imageWidth,
-        $imageHeight,
-        $x,
-        $y,
-        $w = 0,
-        $h = 0,
-        $channels = 3
-    ) {
-        if ($this->image_iscached($imgname)) {
-            $label = $this->imagelist[$imgname]['label'];
-            //debugpng
-            //if (DEBUGPNG) print '[addJpegImage_common Duplicate '.$imgname.']';
-
-        } else {
-            if ($data == null) {
-                $this->addMessage('addJpegImage_common error - (' . $imgname . ') data not present!');
-
-                return;
-            }
-
-            // note that this function is not to be called externally
-            // it is just the common code between the GD and the file options
-            $this->numImages++;
-            $im = $this->numImages;
-            $label = "I$im";
-            $this->numObj++;
-
-            $this->o_image(
-                $this->numObj,
-                'new',
-                [
-                    'label'    => $label,
-                    'data'     => &$data,
-                    'iw'       => $imageWidth,
-                    'ih'       => $imageHeight,
-                    'channels' => $channels
-                ]
-            );
-
-            $this->imagelist[$imgname] = [
-                'label' => $label,
-                'w'     => $imageWidth,
-                'h'     => $imageHeight,
-                'c'     => $channels
-            ];
-        }
-
-        $this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ ", $w, $h, $x, $y, $label));
-    }
-
-    /**
-     * specify where the document should open when it first starts
-     *
-     * @param $style
-     * @param int $a
-     * @param int $b
-     * @param int $c
-     */
-    function openHere($style, $a = 0, $b = 0, $c = 0)
-    {
-        // this function will open the document at a specified page, in a specified style
-        // the values for style, and the required parameters are:
-        // 'XYZ'  left, top, zoom
-        // 'Fit'
-        // 'FitH' top
-        // 'FitV' left
-        // 'FitR' left,bottom,right
-        // 'FitB'
-        // 'FitBH' top
-        // 'FitBV' left
-        $this->numObj++;
-        $this->o_destination(
-            $this->numObj,
-            'new',
-            ['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
-        );
-        $id = $this->catalogId;
-        $this->o_catalog($id, 'openHere', $this->numObj);
-    }
-
-    /**
-     * Add JavaScript code to the PDF document
-     *
-     * @param string $code
-     */
-    function addJavascript($code)
-    {
-        $this->javascript .= $code;
-    }
-
-    /**
-     * create a labelled destination within the document
-     *
-     * @param $label
-     * @param $style
-     * @param int $a
-     * @param int $b
-     * @param int $c
-     */
-    function addDestination($label, $style, $a = 0, $b = 0, $c = 0)
-    {
-        // associates the given label with the destination, it is done this way so that a destination can be specified after
-        // it has been linked to
-        // styles are the same as the 'openHere' function
-        $this->numObj++;
-        $this->o_destination(
-            $this->numObj,
-            'new',
-            ['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
-        );
-        $id = $this->numObj;
-
-        // store the label->idf relationship, note that this means that labels can be used only once
-        $this->destinations["$label"] = $id;
-    }
-
-    /**
-     * define font families, this is used to initialize the font families for the default fonts
-     * and for the user to add new ones for their fonts. The default bahavious can be overridden should
-     * that be desired.
-     *
-     * @param $family
-     * @param string $options
-     */
-    function setFontFamily($family, $options = '')
-    {
-        if (!is_array($options)) {
-            if ($family === 'init') {
-                // set the known family groups
-                // these font families will be used to enable bold and italic markers to be included
-                // within text streams. html forms will be used... <b></b> <i></i>
-                $this->fontFamilies['Helvetica.afm'] =
-                    [
-                        'b'  => 'Helvetica-Bold.afm',
-                        'i'  => 'Helvetica-Oblique.afm',
-                        'bi' => 'Helvetica-BoldOblique.afm',
-                        'ib' => 'Helvetica-BoldOblique.afm'
-                    ];
-
-                $this->fontFamilies['Courier.afm'] =
-                    [
-                        'b'  => 'Courier-Bold.afm',
-                        'i'  => 'Courier-Oblique.afm',
-                        'bi' => 'Courier-BoldOblique.afm',
-                        'ib' => 'Courier-BoldOblique.afm'
-                    ];
-
-                $this->fontFamilies['Times-Roman.afm'] =
-                    [
-                        'b'  => 'Times-Bold.afm',
-                        'i'  => 'Times-Italic.afm',
-                        'bi' => 'Times-BoldItalic.afm',
-                        'ib' => 'Times-BoldItalic.afm'
-                    ];
-            }
-        } else {
-
-            // the user is trying to set a font family
-            // note that this can also be used to set the base ones to something else
-            if (mb_strlen($family)) {
-                $this->fontFamilies[$family] = $options;
-            }
-        }
-    }
-
-    /**
-     * used to add messages for use in debugging
-     *
-     * @param $message
-     */
-    function addMessage($message)
-    {
-        $this->messages .= $message . "\n";
-    }
-
-    /**
-     * a few functions which should allow the document to be treated transactionally.
-     *
-     * @param $action
-     */
-    function transaction($action)
-    {
-        switch ($action) {
-            case 'start':
-                // store all the data away into the checkpoint variable
-                $data = get_object_vars($this);
-                $this->checkpoint = $data;
-                unset($data);
-                break;
-
-            case 'commit':
-                if (is_array($this->checkpoint) && isset($this->checkpoint['checkpoint'])) {
-                    $tmp = $this->checkpoint['checkpoint'];
-                    $this->checkpoint = $tmp;
-                    unset($tmp);
-                } else {
-                    $this->checkpoint = '';
-                }
-                break;
-
-            case 'rewind':
-                // do not destroy the current checkpoint, but move us back to the state then, so that we can try again
-                if (is_array($this->checkpoint)) {
-                    // can only abort if were inside a checkpoint
-                    $tmp = $this->checkpoint;
-
-                    foreach ($tmp as $k => $v) {
-                        if ($k !== 'checkpoint') {
-                            $this->$k = $v;
-                        }
-                    }
-                    unset($tmp);
-                }
-                break;
-
-            case 'abort':
-                if (is_array($this->checkpoint)) {
-                    // can only abort if were inside a checkpoint
-                    $tmp = $this->checkpoint;
-                    foreach ($tmp as $k => $v) {
-                        $this->$k = $v;
-                    }
-                    unset($tmp);
-                }
-                break;
-        }
-    }
+									$transparency['r'] = $this->getBytes($data, $p + 8, 2);
+									// r from truecolor
+									$transparency['g'] = $this->getBytes($data, $p + 10, 2);
+									// g from truecolor
+									$transparency['b'] = $this->getBytes($data, $p + 12, 2);
+									// b from truecolor
+
+									$transparency['type'] = 'color-key';
+									break;
+
+								//unsupported transparency type
+								default:
+									if (defined("DEBUGPNG") && DEBUGPNG) {
+										print '[addPngFromFile unsupported transparency type ' . $file . ']';
+									}
+									break;
+							}
+
+							// KS End new code
+							break;
+
+						default:
+							break;
+					}
+
+					$p += $chunkLen + 12;
+				}
+
+				if (!$haveHeader) {
+					$error = 1;
+
+					//debugpng
+					if (defined("DEBUGPNG") && DEBUGPNG) {
+						print '[addPngFromFile information header is missing ' . $file . ']';
+					}
+
+					$errormsg = 'information header is missing';
+				}
+
+				if (isset($info['interlaceMethod']) && $info['interlaceMethod']) {
+					$error = 1;
+
+					//debugpng
+					if (defined("DEBUGPNG") && DEBUGPNG) {
+						print '[addPngFromFile no support for interlaced images in pdf ' . $file . ']';
+					}
+
+					$errormsg = 'There appears to be no support for interlaced images in pdf.';
+				}
+			}
+
+			if (!$error && $info['bitDepth'] > 8) {
+				$error = 1;
+
+				//debugpng
+				if (defined("DEBUGPNG") && DEBUGPNG) {
+					print '[addPngFromFile bit depth of 8 or less is supported ' . $file . ']';
+				}
+
+				$errormsg = 'only bit depth of 8 or less is supported';
+			}
+
+			if (!$error) {
+				switch ($info['colorType']) {
+					case 3:
+						$color = 'DeviceRGB';
+						$ncolor = 1;
+						break;
+
+					case 2:
+						$color = 'DeviceRGB';
+						$ncolor = 3;
+						break;
+
+					case 0:
+						$color = 'DeviceGray';
+						$ncolor = 1;
+						break;
+
+					default:
+						$error = 1;
+
+						//debugpng
+						if (defined("DEBUGPNG") && DEBUGPNG) {
+							print '[addPngFromFile alpha channel not supported: ' . $info['colorType'] . ' ' . $file . ']';
+						}
+
+						$errormsg = 'transparency alpha channel not supported, transparency only supported for palette images.';
+				}
+			}
+
+			if ($error) {
+				$this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+
+				return;
+			}
+
+			//print_r($info);
+			// so this image is ok... add it in.
+			$this->numImages++;
+			$im = $this->numImages;
+			$label = "I$im";
+			$this->numObj++;
+
+			//  $this->o_image($this->numObj,'new',array('label' => $label,'data' => $idata,'iw' => $w,'ih' => $h,'type' => 'png','ic' => $info['width']));
+			$options = [
+				'label'            => $label,
+				'data'             => $idata,
+				'bitsPerComponent' => $info['bitDepth'],
+				'pdata'            => $pdata,
+				'iw'               => $info['width'],
+				'ih'               => $info['height'],
+				'type'             => 'png',
+				'color'            => $color,
+				'ncolor'           => $ncolor,
+				'masked'           => $mask,
+				'isMask'           => $is_mask
+			];
+
+			if (isset($transparency)) {
+				$options['transparency'] = $transparency;
+			}
+
+			$this->o_image($this->numObj, 'new', $options);
+			$this->imagelist[$file] = ['label' => $label, 'w' => $info['width'], 'h' => $info['height']];
+		}
+
+		if ($is_mask) {
+			return;
+		}
+
+		if ($w <= 0 && $h <= 0) {
+			$w = $info['width'];
+			$h = $info['height'];
+		}
+
+		if ($w <= 0) {
+			$w = $h / $info['height'] * $info['width'];
+		}
+
+		if ($h <= 0) {
+			$h = $w * $info['height'] / $info['width'];
+		}
+
+		$this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ", $w, $h, $x, $y, $label));
+	}
+
+	/**
+	 * add a JPEG image into the document, from a file
+	 *
+	 * @param $img
+	 * @param $x
+	 * @param $y
+	 * @param int $w
+	 * @param int $h
+	 */
+	function addJpegFromFile($img, $x, $y, $w = 0, $h = 0)
+	{
+		// attempt to add a jpeg image straight from a file, using no GD commands
+		// note that this function is unable to operate on a remote file.
+
+		if (!file_exists($img)) {
+			return;
+		}
+
+		if ($this->image_iscached($img)) {
+			$data = null;
+			$imageWidth = $this->imagelist[$img]['w'];
+			$imageHeight = $this->imagelist[$img]['h'];
+			$channels = $this->imagelist[$img]['c'];
+		} else {
+			$tmp = getimagesize($img);
+			$imageWidth = $tmp[0];
+			$imageHeight = $tmp[1];
+
+			if (isset($tmp['channels'])) {
+				$channels = $tmp['channels'];
+			} else {
+				$channels = 3;
+			}
+
+			$data = file_get_contents($img);
+		}
+
+		if ($w <= 0 && $h <= 0) {
+			$w = $imageWidth;
+		}
+
+		if ($w == 0) {
+			$w = $h / $imageHeight * $imageWidth;
+		}
+
+		if ($h == 0) {
+			$h = $w * $imageHeight / $imageWidth;
+		}
+
+		$this->addJpegImage_common($data, $img, $imageWidth, $imageHeight, $x, $y, $w, $h, $channels);
+	}
+
+	/**
+	 * common code used by the two JPEG adding functions
+	 * @param $data
+	 * @param $imgname
+	 * @param $imageWidth
+	 * @param $imageHeight
+	 * @param $x
+	 * @param $y
+	 * @param int $w
+	 * @param int $h
+	 * @param int $channels
+	 */
+	private function addJpegImage_common(
+		&$data,
+		$imgname,
+		$imageWidth,
+		$imageHeight,
+		$x,
+		$y,
+		$w = 0,
+		$h = 0,
+		$channels = 3
+	) {
+		if ($this->image_iscached($imgname)) {
+			$label = $this->imagelist[$imgname]['label'];
+			//debugpng
+			//if (DEBUGPNG) print '[addJpegImage_common Duplicate '.$imgname.']';
+
+		} else {
+			if ($data == null) {
+				$this->addMessage('addJpegImage_common error - (' . $imgname . ') data not present!');
+
+				return;
+			}
+
+			// note that this function is not to be called externally
+			// it is just the common code between the GD and the file options
+			$this->numImages++;
+			$im = $this->numImages;
+			$label = "I$im";
+			$this->numObj++;
+
+			$this->o_image(
+				$this->numObj,
+				'new',
+				[
+					'label'    => $label,
+					'data'     => &$data,
+					'iw'       => $imageWidth,
+					'ih'       => $imageHeight,
+					'channels' => $channels
+				]
+			);
+
+			$this->imagelist[$imgname] = [
+				'label' => $label,
+				'w'     => $imageWidth,
+				'h'     => $imageHeight,
+				'c'     => $channels
+			];
+		}
+
+		$this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ ", $w, $h, $x, $y, $label));
+	}
+
+	/**
+	 * specify where the document should open when it first starts
+	 *
+	 * @param $style
+	 * @param int $a
+	 * @param int $b
+	 * @param int $c
+	 */
+	function openHere($style, $a = 0, $b = 0, $c = 0)
+	{
+		// this function will open the document at a specified page, in a specified style
+		// the values for style, and the required parameters are:
+		// 'XYZ'  left, top, zoom
+		// 'Fit'
+		// 'FitH' top
+		// 'FitV' left
+		// 'FitR' left,bottom,right
+		// 'FitB'
+		// 'FitBH' top
+		// 'FitBV' left
+		$this->numObj++;
+		$this->o_destination(
+			$this->numObj,
+			'new',
+			['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
+		);
+		$id = $this->catalogId;
+		$this->o_catalog($id, 'openHere', $this->numObj);
+	}
+
+	/**
+	 * Add JavaScript code to the PDF document
+	 *
+	 * @param string $code
+	 */
+	function addJavascript($code)
+	{
+		$this->javascript .= $code;
+	}
+
+	/**
+	 * create a labelled destination within the document
+	 *
+	 * @param $label
+	 * @param $style
+	 * @param int $a
+	 * @param int $b
+	 * @param int $c
+	 */
+	function addDestination($label, $style, $a = 0, $b = 0, $c = 0)
+	{
+		// associates the given label with the destination, it is done this way so that a destination can be specified after
+		// it has been linked to
+		// styles are the same as the 'openHere' function
+		$this->numObj++;
+		$this->o_destination(
+			$this->numObj,
+			'new',
+			['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
+		);
+		$id = $this->numObj;
+
+		// store the label->idf relationship, note that this means that labels can be used only once
+		$this->destinations["$label"] = $id;
+	}
+
+	/**
+	 * define font families, this is used to initialize the font families for the default fonts
+	 * and for the user to add new ones for their fonts. The default bahavious can be overridden should
+	 * that be desired.
+	 *
+	 * @param $family
+	 * @param string $options
+	 */
+	function setFontFamily($family, $options = '')
+	{
+		if (!is_array($options)) {
+			if ($family === 'init') {
+				// set the known family groups
+				// these font families will be used to enable bold and italic markers to be included
+				// within text streams. html forms will be used... <b></b> <i></i>
+				$this->fontFamilies['Helvetica.afm'] =
+					[
+						'b'  => 'Helvetica-Bold.afm',
+						'i'  => 'Helvetica-Oblique.afm',
+						'bi' => 'Helvetica-BoldOblique.afm',
+						'ib' => 'Helvetica-BoldOblique.afm'
+					];
+
+				$this->fontFamilies['Courier.afm'] =
+					[
+						'b'  => 'Courier-Bold.afm',
+						'i'  => 'Courier-Oblique.afm',
+						'bi' => 'Courier-BoldOblique.afm',
+						'ib' => 'Courier-BoldOblique.afm'
+					];
+
+				$this->fontFamilies['Times-Roman.afm'] =
+					[
+						'b'  => 'Times-Bold.afm',
+						'i'  => 'Times-Italic.afm',
+						'bi' => 'Times-BoldItalic.afm',
+						'ib' => 'Times-BoldItalic.afm'
+					];
+			}
+		} else {
+
+			// the user is trying to set a font family
+			// note that this can also be used to set the base ones to something else
+			if (mb_strlen($family)) {
+				$this->fontFamilies[$family] = $options;
+			}
+		}
+	}
+
+	/**
+	 * used to add messages for use in debugging
+	 *
+	 * @param $message
+	 */
+	function addMessage($message)
+	{
+		$this->messages .= $message . "\n";
+	}
+
+	/**
+	 * a few functions which should allow the document to be treated transactionally.
+	 *
+	 * @param $action
+	 */
+	function transaction($action)
+	{
+		switch ($action) {
+			case 'start':
+				// store all the data away into the checkpoint variable
+				$data = get_object_vars($this);
+				$this->checkpoint = $data;
+				unset($data);
+				break;
+
+			case 'commit':
+				if (is_array($this->checkpoint) && isset($this->checkpoint['checkpoint'])) {
+					$tmp = $this->checkpoint['checkpoint'];
+					$this->checkpoint = $tmp;
+					unset($tmp);
+				} else {
+					$this->checkpoint = '';
+				}
+				break;
+
+			case 'rewind':
+				// do not destroy the current checkpoint, but move us back to the state then, so that we can try again
+				if (is_array($this->checkpoint)) {
+					// can only abort if were inside a checkpoint
+					$tmp = $this->checkpoint;
+
+					foreach ($tmp as $k => $v) {
+						if ($k !== 'checkpoint') {
+							$this->$k = $v;
+						}
+					}
+					unset($tmp);
+				}
+				break;
+
+			case 'abort':
+				if (is_array($this->checkpoint)) {
+					// can only abort if were inside a checkpoint
+					$tmp = $this->checkpoint;
+					foreach ($tmp as $k => $v) {
+						$this->$k = $v;
+					}
+					unset($tmp);
+				}
+				break;
+		}
+	}
 }

Spacing +242 added lines, -242 removed lines

@@ -23,24 +23,24 @@ 
     const PDF_VERSION = '1.7';
 
     const ACROFORM_SIG_SIGNATURESEXISTS = 0x0001;
-    const ACROFORM_SIG_APPENDONLY =       0x0002;
+    const ACROFORM_SIG_APPENDONLY = 0x0002;
 
-    const ACROFORM_FIELD_BUTTON =   'Btn';
-    const ACROFORM_FIELD_TEXT =     'Tx';
-    const ACROFORM_FIELD_CHOICE =   'Ch';
-    const ACROFORM_FIELD_SIG =      'Sig';
+    const ACROFORM_FIELD_BUTTON = 'Btn';
+    const ACROFORM_FIELD_TEXT = 'Tx';
+    const ACROFORM_FIELD_CHOICE = 'Ch';
+    const ACROFORM_FIELD_SIG = 'Sig';
 
-    const ACROFORM_FIELD_READONLY =               0x0001;
-    const ACROFORM_FIELD_REQUIRED =               0x0002;
+    const ACROFORM_FIELD_READONLY = 0x0001;
+    const ACROFORM_FIELD_REQUIRED = 0x0002;
 
-    const ACROFORM_FIELD_TEXT_MULTILINE =         0x1000;
-    const ACROFORM_FIELD_TEXT_PASSWORD =          0x2000;
-    const ACROFORM_FIELD_TEXT_RICHTEXT =         0x10000;
+    const ACROFORM_FIELD_TEXT_MULTILINE = 0x1000;
+    const ACROFORM_FIELD_TEXT_PASSWORD = 0x2000;
+    const ACROFORM_FIELD_TEXT_RICHTEXT = 0x10000;
 
-    const ACROFORM_FIELD_CHOICE_COMBO =          0x20000;
-    const ACROFORM_FIELD_CHOICE_EDIT =           0x40000;
-    const ACROFORM_FIELD_CHOICE_SORT =           0x80000;
-    const ACROFORM_FIELD_CHOICE_MULTISELECT =   0x200000;
+    const ACROFORM_FIELD_CHOICE_COMBO = 0x20000;
+    const ACROFORM_FIELD_CHOICE_EDIT = 0x40000;
+    const ACROFORM_FIELD_CHOICE_SORT = 0x80000;
+    const ACROFORM_FIELD_CHOICE_MULTISELECT = 0x200000;
 
     const XOBJECT_SUBTYPE_FORM = 'Form';
 
@@ -459,16 +459,16 @@ 
                     case 'XYZ':
                     /** @noinspection PhpMissingBreakStatementInspection */
                     case 'FitR':
-                        $tmp = ' ' . $options['p3'] . $tmp;
+                        $tmp = ' '.$options['p3'].$tmp;
                     case 'FitH':
                     case 'FitV':
                     case 'FitBH':
                     /** @noinspection PhpMissingBreakStatementInspection */
                     case 'FitBV':
-                        $tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
+                        $tmp = ' '.$options['p1'].' '.$options['p2'].$tmp;
                     case 'Fit':
                     case 'FitB':
-                        $tmp = $options['type'] . $tmp;
+                        $tmp = $options['type'].$tmp;
                         $this->objects[$id]['info']['string'] = $tmp;
                         $this->objects[$id]['info']['page'] = $options['page'];
                 }
@@ -478,7 +478,7 @@ 
                 $o = &$this->objects[$id];
 
                 $tmp = $o['info'];
-                $res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
+                $res = "\n$id 0 obj\n".'['.$tmp['page'].' 0 R /'.$tmp['string']."]\nendobj";
 
                 return $res;
         }
@@ -514,12 +514,12 @@ 
                         case 'CenterWindow':
                         case 'DisplayDocTitle':
                         case 'PickTrayByPDFSize':
-                            $o['info'][$k] = (bool)$v;
+                            $o['info'][$k] = (bool) $v;
                             break;
 
                         // Integer keys
                         case 'NumCopies':
-                            $o['info'][$k] = (int)$v;
+                            $o['info'][$k] = (int) $v;
                             break;
 
                         // Name keys
@@ -527,33 +527,33 @@ 
                         case 'ViewClip':
                         case 'PrintClip':
                         case 'PrintArea':
-                            $o['info'][$k] = (string)$v;
+                            $o['info'][$k] = (string) $v;
                             break;
 
                         // Named with limited valid values
                         case 'NonFullScreenPageMode':
-                            if (!in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
+                            if ( ! in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
                             break;
 
                         case 'Direction':
-                            if (!in_array($v, ['L2R', 'R2L'])) {
+                            if ( ! in_array($v, ['L2R', 'R2L'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
                             break;
 
                         case 'PrintScaling':
-                            if (!in_array($v, ['None', 'AppDefault'])) {
+                            if ( ! in_array($v, ['None', 'AppDefault'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
                             break;
 
                         case 'Duplex':
-                            if (!in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
+                            if ( ! in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
@@ -563,7 +563,7 @@ 
                         case 'PrintPageRange':
                             // Cast to integer array
                             foreach ($v as $vK => $vV) {
-                                $v[$vK] = (int)$vV;
+                                $v[$vK] = (int) $vV;
                             }
                             $o['info'][$k] = array_values($v);
                             break;
@@ -577,13 +577,13 @@ 
 
                 foreach ($o['info'] as $k => $v) {
                     if (is_string($v)) {
-                        $v = '/' . $v;
+                        $v = '/'.$v;
                     } elseif (is_int($v)) {
                         $v = (string) $v;
                     } elseif (is_bool($v)) {
                         $v = ($v ? 'true' : 'false');
                     } elseif (is_array($v)) {
-                        $v = '[' . implode(' ', $v) . ']';
+                        $v = '['.implode(' ', $v).']';
                     }
                     $res .= "\n/$k $v";
                 }
@@ -624,7 +624,7 @@ 
                 break;
 
             case 'viewerPreferences':
-                if (!isset($o['info']['viewerPreferences'])) {
+                if ( ! isset($o['info']['viewerPreferences'])) {
                     $this->numObj++;
                     $this->o_viewerPreferences($this->numObj, 'new');
                     $o['info']['viewerPreferences'] = $this->numObj;
@@ -695,7 +695,7 @@ 
                 break;
 
             case 'page':
-                if (!is_array($options)) {
+                if ( ! is_array($options)) {
                     // then it will just be the id of the new page
                     $o['info']['pages'][] = $options;
                 } else {
@@ -762,7 +762,7 @@ 
                         $res .= "$v 0 R\n";
                     }
 
-                    $res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
+                    $res .= "]\n/Count ".count($this->objects[$id]['info']['pages']);
 
                     if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
                         isset($o['info']['procset']) ||
@@ -771,13 +771,13 @@ 
                         $res .= "\n/Resources <<";
 
                         if (isset($o['info']['procset'])) {
-                            $res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
+                            $res .= "\n/ProcSet ".$o['info']['procset']." 0 R";
                         }
 
                         if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
                             $res .= "\n/Font << ";
                             foreach ($o['info']['fonts'] as $finfo) {
-                                $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+                                $res .= "\n/F".$finfo['fontNum']." ".$finfo['objNum']." 0 R";
                             }
                             $res .= "\n>>";
                         }
@@ -785,7 +785,7 @@ 
                         if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
                             $res .= "\n/XObject << ";
                             foreach ($o['info']['xObjects'] as $finfo) {
-                                $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+                                $res .= "\n/".$finfo['label']." ".$finfo['objNum']." 0 R";
                             }
                             $res .= "\n>>";
                         }
@@ -793,7 +793,7 @@ 
                         if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
                             $res .= "\n/ExtGState << ";
                             foreach ($o['info']['extGStates'] as $gstate) {
-                                $res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
+                                $res .= "\n/GS".$gstate['stateNum']." ".$gstate['objNum']." 0 R";
                             }
                             $res .= "\n>>";
                         }
@@ -801,13 +801,13 @@ 
                         $res .= "\n>>";
                         if (isset($o['info']['mediaBox'])) {
                             $tmp = $o['info']['mediaBox'];
-                            $res .= "\n/MediaBox [" . sprintf(
+                            $res .= "\n/MediaBox [".sprintf(
                                     '%.3F %.3F %.3F %.3F',
                                     $tmp[0],
                                     $tmp[1],
                                     $tmp[2],
                                     $tmp[3]
-                                ) . ']';
+                                ).']';
                         }
                     }
 
@@ -853,7 +853,7 @@ 
                         $res .= "$v 0 R ";
                     }
 
-                    $res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
+                    $res .= "] /Count ".count($o['info']['outlines'])." >>\nendobj";
                 } else {
                     $res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
                 }
@@ -957,7 +957,7 @@ 
                             case 'Widths':
                             case 'FontDescriptor':
                             case 'SubType':
-                                $this->addMessage('o_font ' . $k . " : " . $v);
+                                $this->addMessage('o_font '.$k." : ".$v);
                                 $o['info'][$k] = $v;
                                 break;
                         }
@@ -981,44 +981,44 @@ 
                     // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
 
                     $res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
+                    $res .= "/BaseFont /".$o['info']['name']."\n";
 
                     // The horizontal identity mapping for 2-byte CIDs; may be used
                     // with CIDFonts using any Registry, Ordering, and Supplement values.
                     $res .= "/Encoding /Identity-H\n";
-                    $res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
-                    $res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
+                    $res .= "/DescendantFonts [".$o['info']['cidFont']." 0 R]\n";
+                    $res .= "/ToUnicode ".$o['info']['toUnicode']." 0 R\n";
                     $res .= ">>\n";
                     $res .= "endobj";
                 } else {
-                    $res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
-                    $res .= "/Name /F" . $o['info']['fontNum'] . "\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
+                    $res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /".$o['info']['SubType']."\n";
+                    $res .= "/Name /F".$o['info']['fontNum']."\n";
+                    $res .= "/BaseFont /".$o['info']['name']."\n";
 
                     if (isset($o['info']['encodingDictionary'])) {
                         // then place a reference to the dictionary
-                        $res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
+                        $res .= "/Encoding ".$o['info']['encodingDictionary']." 0 R\n";
                     } else {
                         if (isset($o['info']['encoding'])) {
                             // use the specified encoding
-                            $res .= "/Encoding /" . $o['info']['encoding'] . "\n";
+                            $res .= "/Encoding /".$o['info']['encoding']."\n";
                         }
                     }
 
                     if (isset($o['info']['FirstChar'])) {
-                        $res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
+                        $res .= "/FirstChar ".$o['info']['FirstChar']."\n";
                     }
 
                     if (isset($o['info']['LastChar'])) {
-                        $res .= "/LastChar " . $o['info']['LastChar'] . "\n";
+                        $res .= "/LastChar ".$o['info']['LastChar']."\n";
                     }
 
                     if (isset($o['info']['Widths'])) {
-                        $res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
+                        $res .= "/Widths ".$o['info']['Widths']." 0 R\n";
                     }
 
                     if (isset($o['info']['FontDescriptor'])) {
-                        $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+                        $res .= "/FontDescriptor ".$o['info']['FontDescriptor']." 0 R\n";
                     }
 
                     $res .= ">>\n";
@@ -1044,7 +1044,7 @@ 
             }
         }
 
-        return 'SUB' . str_pad($base_26, 3 , 'A', STR_PAD_LEFT);
+        return 'SUB'.str_pad($base_26, 3, 'A', STR_PAD_LEFT);
     }
 
     /**
@@ -1056,7 +1056,7 @@ 
     private function processFont(int $fontObjId, array $object_info)
     {
         $fontFileName = $object_info['fontFileName'];
-        if (!isset($this->fonts[$fontFileName])) {
+        if ( ! isset($this->fonts[$fontFileName])) {
             return false;
         }
 
@@ -1068,9 +1068,9 @@ 
         $isTtfFont = $fileSuffixLower === 'ttf';
         $isPfbFont = $fileSuffixLower === 'pfb';
 
-        $this->addMessage('selectFont: checking for - ' . $fbfile);
+        $this->addMessage('selectFont: checking for - '.$fbfile);
 
-        if (!$fileSuffix) {
+        if ( ! $fileSuffix) {
             $this->addMessage(
                 'selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts'
             );
@@ -1089,7 +1089,7 @@ 
 
             foreach ($font['C'] as $num => $d) {
                 if (intval($num) > 0 || $num == '0') {
-                    if (!$font['isUnicode']) {
+                    if ( ! $font['isUnicode']) {
                         // With Unicode, widths array isn't used
                         if ($lastChar > 0 && $num > $lastChar + 1) {
                             for ($i = $lastChar + 1; $i < $num; $i++) {
@@ -1116,7 +1116,7 @@ 
             if (isset($object['differences'])) {
                 foreach ($object['differences'] as $charNum => $charName) {
                     if ($charNum > $lastChar) {
-                        if (!$object['isUnicode']) {
+                        if ( ! $object['isUnicode']) {
                             // With Unicode, widths array isn't used
                             for ($i = $lastChar + 1; $i <= $charNum; $i++) {
                                 $widths[] = 0;
@@ -1139,17 +1139,17 @@ 
                 $font['CIDWidths'] = $cid_widths;
             }
 
-            $this->addMessage('selectFont: FirstChar = ' . $firstChar);
-            $this->addMessage('selectFont: LastChar = ' . $lastChar);
+            $this->addMessage('selectFont: FirstChar = '.$firstChar);
+            $this->addMessage('selectFont: LastChar = '.$lastChar);
 
             $widthid = -1;
 
-            if (!$font['isUnicode']) {
+            if ( ! $font['isUnicode']) {
                 // With Unicode, widths array isn't used
 
                 $this->numObj++;
                 $this->o_contents($this->numObj, 'new', 'raw');
-                $this->objects[$this->numObj]['c'] .= '[' . implode(' ', $widths) . ']';
+                $this->objects[$this->numObj]['c'] .= '['.implode(' ', $widths).']';
                 $widthid = $this->numObj;
             }
 
@@ -1313,8 +1313,8 @@ 
 EOT;
 
                 $res = "\n$id 0 obj\n";
-                $res .= "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
-                $res .= "stream\n" . $stream . "\nendstream" . "\nendobj";;
+                $res .= "<</Length ".mb_strlen($stream, '8bit')." >>\n";
+                $res .= "stream\n".$stream."\nendstream"."\nendobj"; ;
 
                 return $res;
         }
@@ -1409,12 +1409,12 @@ 
 
             case 'out':
                 $res = "\n$id 0 obj\n<< /Type /Encoding\n";
-                if (!isset($o['info']['encoding'])) {
+                if ( ! isset($o['info']['encoding'])) {
                     $o['info']['encoding'] = 'WinAnsiEncoding';
                 }
 
                 if ($o['info']['encoding'] !== 'none') {
-                    $res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
+                    $res .= "/BaseEncoding /".$o['info']['encoding']."\n";
                 }
 
                 $res .= "/Differences \n[";
@@ -1495,8 +1495,8 @@ 
                 $res = "\n$id 0 obj\n";
                 $res .= "<</Type /Font\n";
                 $res .= "/Subtype /CIDFontType2\n";
-                $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-                $res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
+                $res .= "/BaseFont /".$o['info']['name']."\n";
+                $res .= "/CIDSystemInfo ".$o['info']['cidSystemInfo']." 0 R\n";
                 //      if (isset($o['info']['FirstChar'])) {
                 //        $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
                 //      }
@@ -1505,11 +1505,11 @@ 
                 //        $res.= "/LastChar ".$o['info']['LastChar']."\n";
                 //      }
                 if (isset($o['info']['FontDescriptor'])) {
-                    $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+                    $res .= "/FontDescriptor ".$o['info']['FontDescriptor']." 0 R\n";
                 }
 
                 if (isset($o['info']['MissingWidth'])) {
-                    $res .= "/DW " . $o['info']['MissingWidth'] . "\n";
+                    $res .= "/DW ".$o['info']['MissingWidth']."\n";
                 }
 
                 if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
@@ -1521,7 +1521,7 @@ 
                     $res .= "/W [$w]\n";
                 }
 
-                $res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
+                $res .= "/CIDToGIDMap ".$o['info']['cidToGidMap']." 0 R\n";
                 $res .= ">>\n";
                 $res .= "endobj";
 
@@ -1561,8 +1561,8 @@ 
 
                 $res = "\n$id 0 obj\n";
 
-                $res .= '<</Registry (' . $registry . ")\n"; // A string identifying an issuer of character collections
-                $res .= '/Ordering (' . $ordering . ")\n"; // A string that uniquely names a character collection issued by a specific registry
+                $res .= '<</Registry ('.$registry.")\n"; // A string identifying an issuer of character collections
+                $res .= '/Ordering ('.$ordering.")\n"; // A string that uniquely names a character collection issued by a specific registry
                 $res .= "/Supplement 0\n"; // The supplement number of the character collection.
                 $res .= ">>";
 
@@ -1601,12 +1601,12 @@ 
                 $compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
                     $this->fonts[$fontFileName]['CIDtoGID_Compressed'];
 
-                if (!$compressed && isset($o['raw'])) {
+                if ( ! $compressed && isset($o['raw'])) {
                     $res .= $tmp;
                 } else {
                     $res .= "<<";
 
-                    if (!$compressed && $this->compressionReady && $this->options['compression']) {
+                    if ( ! $compressed && $this->compressionReady && $this->options['compression']) {
                         // then implement ZLIB based compression on this content stream
                         $compressed = true;
                         $tmp = gzcompress($tmp, 6);
@@ -1620,7 +1620,7 @@ 
                         $tmp = $this->ARC4($tmp);
                     }
 
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
+                    $res .= "\n/Length ".mb_strlen($tmp, '8bit').">>\nstream\n$tmp\nendstream";
                 }
 
                 $res .= "\nendobj";
@@ -1690,7 +1690,7 @@ 
         switch ($action) {
             case 'new':
                 $this->infoObject = $id;
-                $date = 'D:' . @date('Ymd');
+                $date = 'D:'.@date('Ymd');
                 $this->objects[$id] = [
                     't'    => 'info',
                     'info' => [
@@ -1775,12 +1775,12 @@ 
                 $res = "\n$id 0 obj\n<< /Type /Action";
                 switch ($o['type']) {
                     case 'ilink':
-                        if (!isset($this->destinations[(string)$o['info']['label']])) {
+                        if ( ! isset($this->destinations[(string) $o['info']['label']])) {
                             break;
                         }
 
                         // there will be an 'label' setting, this is the name of the destination
-                        $res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
+                        $res .= "\n/S /GoTo\n/D ".$this->destinations[(string) $o['info']['label']]." 0 R";
                         break;
 
                     case 'URI':
@@ -1852,7 +1852,7 @@ 
                         $res .= "\n/Subtype /Link";
                         break;
                 }
-                $res .= "\n/A " . $o['info']['actionId'] . " 0 R";
+                $res .= "\n/A ".$o['info']['actionId']." 0 R";
                 $res .= "\n/Border [0 0 0]";
                 $res .= "\n/H /I";
                 $res .= "\n/Rect [ ";
@@ -1926,7 +1926,7 @@ 
 
             case 'annot':
                 // add an annotation to this page
-                if (!isset($o['info']['annot'])) {
+                if ( ! isset($o['info']['annot'])) {
                     $o['info']['annot'] = [];
                 }
 
@@ -1938,15 +1938,15 @@ 
                 $res = "\n$id 0 obj\n<< /Type /Page";
                 if (isset($o['info']['mediaBox'])) {
                     $tmp = $o['info']['mediaBox'];
-                    $res .= "\n/MediaBox [" . sprintf(
+                    $res .= "\n/MediaBox [".sprintf(
                             '%.3F %.3F %.3F %.3F',
                             $tmp[0],
                             $tmp[1],
                             $tmp[2],
                             $tmp[3]
-                        ) . ']';
+                        ).']';
                 }
-                $res .= "\n/Parent " . $o['info']['parent'] . " 0 R";
+                $res .= "\n/Parent ".$o['info']['parent']." 0 R";
 
                 if (isset($o['info']['annot'])) {
                     $res .= "\n/Annots [";
@@ -1958,7 +1958,7 @@ 
 
                 $count = count($o['info']['contents']);
                 if ($count == 1) {
-                    $res .= "\n/Contents " . $o['info']['contents'][0] . " 0 R";
+                    $res .= "\n/Contents ".$o['info']['contents'][0]." 0 R";
                 } else {
                     if ($count > 1) {
                         $res .= "\n/Contents [\n";
@@ -2038,7 +2038,7 @@ 
                         $res .= "\n/$k $v";
                     }
 
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . " >>\nstream\n$tmp\nendstream";
+                    $res .= "\n/Length ".mb_strlen($tmp, '8bit')." >>\nstream\n$tmp\nendstream";
                 }
 
                 $res .= "\nendobj";
@@ -2061,7 +2061,7 @@ 
                 $this->objects[$id] = [
                     't'    => 'embedjs',
                     'info' => [
-                        'Names' => '[(EmbeddedJS) ' . ($id + 1) . ' 0 R]'
+                        'Names' => '[(EmbeddedJS) '.($id + 1).' 0 R]'
                     ]
                 ];
                 break;
@@ -2094,7 +2094,7 @@ 
                     't'    => 'javascript',
                     'info' => [
                         'S'  => '/JavaScript',
-                        'JS' => '(' . $this->filterText($code, true, false) . ')',
+                        'JS' => '('.$this->filterText($code, true, false).')',
                     ]
                 ];
                 break;
@@ -2129,7 +2129,7 @@ 
                 // make the new object
                 $this->objects[$id] = ['t' => 'image', 'data' => &$options['data'], 'info' => []];
 
-                $info =& $this->objects[$id]['info'];
+                $info = & $this->objects[$id]['info'];
 
                 $info['Type'] = '/XObject';
                 $info['Subtype'] = '/Image';
@@ -2137,11 +2137,11 @@ 
                 $info['Height'] = $options['ih'];
 
                 if (isset($options['masked']) && $options['masked']) {
-                    $info['SMask'] = ($this->numObj - 1) . ' 0 R';
+                    $info['SMask'] = ($this->numObj - 1).' 0 R';
                 }
 
-                if (!isset($options['type']) || $options['type'] === 'jpg') {
-                    if (!isset($options['channels'])) {
+                if ( ! isset($options['type']) || $options['type'] === 'jpg') {
+                    if ( ! isset($options['channels'])) {
                         $options['channels'] = 3;
                     }
 
@@ -2166,17 +2166,17 @@ 
                 } else {
                     if ($options['type'] === 'png') {
                         $info['Filter'] = '/FlateDecode';
-                        $info['DecodeParms'] = '<< /Predictor 15 /Colors ' . $options['ncolor'] . ' /Columns ' . $options['iw'] . ' /BitsPerComponent ' . $options['bitsPerComponent'] . '>>';
+                        $info['DecodeParms'] = '<< /Predictor 15 /Colors '.$options['ncolor'].' /Columns '.$options['iw'].' /BitsPerComponent '.$options['bitsPerComponent'].'>>';
 
                         if ($options['isMask']) {
                             $info['ColorSpace'] = '/DeviceGray';
                         } else {
                             if (mb_strlen($options['pdata'], '8bit')) {
-                                $tmp = ' [ /Indexed /DeviceRGB ' . (mb_strlen($options['pdata'], '8bit') / 3 - 1) . ' ';
+                                $tmp = ' [ /Indexed /DeviceRGB '.(mb_strlen($options['pdata'], '8bit') / 3 - 1).' ';
                                 $this->numObj++;
                                 $this->o_contents($this->numObj, 'new');
                                 $this->objects[$this->numObj]['c'] = $options['pdata'];
-                                $tmp .= $this->numObj . ' 0 R';
+                                $tmp .= $this->numObj.' 0 R';
                                 $tmp .= ' ]';
                                 $info['ColorSpace'] = $tmp;
 
@@ -2184,15 +2184,15 @@ 
                                     $transparency = $options['transparency'];
                                     switch ($transparency['type']) {
                                         case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+                                            $tmp = ' [ '.$transparency['data'].' '.$transparency['data'].'] ';
                                             $info['Mask'] = $tmp;
                                             break;
 
                                         case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] .
-                                                $transparency['g'] . ' ' . $transparency['g'] .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
+                                            $tmp = ' [ '.
+                                                $transparency['r'].' '.$transparency['r'].
+                                                $transparency['g'].' '.$transparency['g'].
+                                                $transparency['b'].' '.$transparency['b'].
                                                 ' ] ';
                                             $info['Mask'] = $tmp;
                                             break;
@@ -2204,21 +2204,21 @@ 
 
                                     switch ($transparency['type']) {
                                         case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+                                            $tmp = ' [ '.$transparency['data'].' '.$transparency['data'].'] ';
                                             $info['Mask'] = $tmp;
                                             break;
 
                                         case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] . ' ' .
-                                                $transparency['g'] . ' ' . $transparency['g'] . ' ' .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
+                                            $tmp = ' [ '.
+                                                $transparency['r'].' '.$transparency['r'].' '.
+                                                $transparency['g'].' '.$transparency['g'].' '.
+                                                $transparency['b'].' '.$transparency['b'].
                                                 ' ] ';
                                             $info['Mask'] = $tmp;
                                             break;
                                     }
                                 }
-                                $info['ColorSpace'] = '/' . $options['color'];
+                                $info['ColorSpace'] = '/'.$options['color'];
                             }
                         }
 
@@ -2248,7 +2248,7 @@ 
                     $tmp = $this->ARC4($tmp);
                 }
 
-                $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream\nendobj";
+                $res .= "\n/Length ".mb_strlen($tmp, '8bit').">>\nstream\n$tmp\nendstream\nendobj";
 
                 return $res;
         }
@@ -2309,7 +2309,7 @@ 
                 $res = "\n$id 0 obj\n<< /Type /ExtGState\n";
 
                 foreach ($o["info"] as $k => $v) {
-                    if (!in_array($k, $valid_params)) {
+                    if ( ! in_array($k, $valid_params)) {
                         continue;
                     }
                     $res .= "/$k $v\n";
@@ -2356,7 +2356,7 @@ 
                 $res = "\n$id 0 obj\n<< /Type /XObject\n";
 
                 foreach ($o["info"] as $k => $v) {
-                    switch($k)
+                    switch ($k)
                     {
                         case 'Subtype':
                             $res .= "/Subtype /$v\n";
@@ -2377,21 +2377,21 @@ 
 
                 $res .= "/Resources <<";
                 if (isset($o['procset'])) {
-                    $res .= "\n/ProcSet " . $o['procset'] . " 0 R";
+                    $res .= "\n/ProcSet ".$o['procset']." 0 R";
                 } else {
                     $res .= "\n/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]";
                 }
                 if (isset($o['fonts']) && count($o['fonts'])) {
                     $res .= "\n/Font << ";
                     foreach ($o['fonts'] as $finfo) {
-                        $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+                        $res .= "\n/F".$finfo['fontNum']." ".$finfo['objNum']." 0 R";
                     }
                     $res .= "\n>>";
                 }
                 if (isset($o['xObjects']) && count($o['xObjects'])) {
                     $res .= "\n/XObject << ";
                     foreach ($o['xObjects'] as $finfo) {
-                        $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+                        $res .= "\n/".$finfo['label']." ".$finfo['objNum']." 0 R";
                     }
                     $res .= "\n>>";
                 }
@@ -2409,8 +2409,8 @@ 
                     $tmp = $this->ARC4($tmp);
                 }
 
-                $res .= "/Length " . mb_strlen($tmp, '8bit') . " >>\n";
-                $res .= "stream\n" . $tmp . "\nendstream" . "\nendobj";;
+                $res .= "/Length ".mb_strlen($tmp, '8bit')." >>\n";
+                $res .= "stream\n".$tmp."\nendstream"."\nendobj"; ;
 
                 return $res;
         }
@@ -2448,7 +2448,7 @@ 
                 $res = "\n$id 0 obj\n<<";
 
                 foreach ($o["info"] as $k => $v) {
-                    switch($k) {
+                    switch ($k) {
                         case 'Fields':
                             $res .= " /Fields [";
                             foreach ($v as $i) {
@@ -2465,7 +2465,7 @@ 
                 if (isset($o['fonts']) && count($o['fonts'])) {
                     $res .= "/Font << \n";
                     foreach ($o['fonts'] as $finfo) {
-                        $res .= "/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R\n";
+                        $res .= "/F".$finfo['fontNum']." ".$finfo['objNum']." 0 R\n";
                     }
                     $res .= ">>\n";
                 }
@@ -2552,7 +2552,7 @@ 
                             $res .= ">>\n";
                             break;
                         case 'T':
-                            if($encrypted) {
+                            if ($encrypted) {
                                 $v = $this->filterText($this->ARC4($v), false, false);
                             }
                             $res .= "/T ($v)\n";
@@ -2590,16 +2590,16 @@ 
 
             case 'byterange':
                 $o = &$this->objects[$id];
-                $content =& $options['content'];
+                $content = & $options['content'];
                 $content_len = strlen($content);
                 $pos = strpos($content, sprintf("/ByteRange [ %'.010d", $id));
                 $len = strlen('/ByteRange [ ********** ********** ********** ********** ]');
                 $rangeStartPos = $pos + $len + 1 + 10; // before '<'
-                $content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos ), $len, ' ', STR_PAD_RIGHT), $pos, $len);
+                $content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos), $len, ' ', STR_PAD_RIGHT), $pos, $len);
 
                 $fuid = uniqid();
-                $tmpInput = $this->tmp . "/pkcs7.tmp." . $fuid . '.in';
-                $tmpOutput = $this->tmp . "/pkcs7.tmp." . $fuid . '.out';
+                $tmpInput = $this->tmp."/pkcs7.tmp.".$fuid.'.in';
+                $tmpOutput = $this->tmp."/pkcs7.tmp.".$fuid.'.out';
 
                 if (file_put_contents($tmpInput, substr($content, 0, $rangeStartPos)) === false) {
                     throw new \Exception("Unable to write temporary file for signing.");
@@ -2644,12 +2644,12 @@ 
                     $this->encryptInit($id);
                 }
 
-                $res .= "/ByteRange " .sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
-                $res .= "/Contents <" . str_pad('', $sign_maxlen, '0') . ">\n";
+                $res .= "/ByteRange ".sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
+                $res .= "/Contents <".str_pad('', $sign_maxlen, '0').">\n";
                 $res .= "/Filter/Adobe.PPKLite\n"; //PPKMS \n";
                 $res .= "/Type/Sig/SubFilter/adbe.pkcs7.detached \n";
 
-                $date = "D:" . substr_replace(date('YmdHisO'), '\'', -2, 0) . '\'';
+                $date = "D:".substr_replace(date('YmdHisO'), '\'', -2, 0).'\'';
                 if ($encrypted) {
                     $date = $this->ARC4($date);
                 }
@@ -2659,14 +2659,14 @@ 
 
                 $o = &$this->objects[$id];
                 foreach ($o['info'] as $k => $v) {
-                    switch($k) {
+                    switch ($k) {
                         case 'Name':
                         case 'Location':
                         case 'Reason':
                         case 'ContactInfo':
                             if ($v !== null && $v !== '') {
-                                $res .= "/$k (" .
-                                  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v) . ") \n";
+                                $res .= "/$k (".
+                                  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v).") \n";
                             }
                             break;
                     }
@@ -2698,10 +2698,10 @@ 
 
             case 'keys':
                 // figure out the additional parameters required
-                $pad = chr(0x28) . chr(0xBF) . chr(0x4E) . chr(0x5E) . chr(0x4E) . chr(0x75) . chr(0x8A) . chr(0x41)
-                    . chr(0x64) . chr(0x00) . chr(0x4E) . chr(0x56) . chr(0xFF) . chr(0xFA) . chr(0x01) . chr(0x08)
-                    . chr(0x2E) . chr(0x2E) . chr(0x00) . chr(0xB6) . chr(0xD0) . chr(0x68) . chr(0x3E) . chr(0x80)
-                    . chr(0x2F) . chr(0x0C) . chr(0xA9) . chr(0xFE) . chr(0x64) . chr(0x53) . chr(0x69) . chr(0x7A);
+                $pad = chr(0x28).chr(0xBF).chr(0x4E).chr(0x5E).chr(0x4E).chr(0x75).chr(0x8A).chr(0x41)
+                    . chr(0x64).chr(0x00).chr(0x4E).chr(0x56).chr(0xFF).chr(0xFA).chr(0x01).chr(0x08)
+                    . chr(0x2E).chr(0x2E).chr(0x00).chr(0xB6).chr(0xD0).chr(0x68).chr(0x3E).chr(0x80)
+                    . chr(0x2F).chr(0x0C).chr(0xA9).chr(0xFE).chr(0x64).chr(0x53).chr(0x69).chr(0x7A);
 
                 $info = $this->objects[$id]['info'];
 
@@ -2711,7 +2711,7 @@ 
                     $owner = substr($info['owner'], 0, 32);
                 } else {
                     if ($len < 32) {
-                        $owner = $info['owner'] . substr($pad, 0, 32 - $len);
+                        $owner = $info['owner'].substr($pad, 0, 32 - $len);
                     } else {
                         $owner = $info['owner'];
                     }
@@ -2722,7 +2722,7 @@ 
                     $user = substr($info['user'], 0, 32);
                 } else {
                     if ($len < 32) {
-                        $user = $info['user'] . substr($pad, 0, 32 - $len);
+                        $user = $info['user'].substr($pad, 0, 32 - $len);
                     } else {
                         $user = $info['user'];
                     }
@@ -2736,7 +2736,7 @@ 
 
                 // now make the u value, phew.
                 $tmp = $this->md5_16(
-                    $user . $ovalue . chr($info['p']) . chr(255) . chr(255) . chr(255) . hex2bin($this->fileIdentifier)
+                    $user.$ovalue.chr($info['p']).chr(255).chr(255).chr(255).hex2bin($this->fileIdentifier)
                 );
 
                 $ukey = substr($tmp, 0, 5);
@@ -2755,11 +2755,11 @@ 
                 $res .= "\n/Filter /Standard";
                 $res .= "\n/V 1";
                 $res .= "\n/R 2";
-                $res .= "\n/O (" . $this->filterText($o['info']['O'], false, false) . ')';
-                $res .= "\n/U (" . $this->filterText($o['info']['U'], false, false) . ')';
+                $res .= "\n/O (".$this->filterText($o['info']['O'], false, false).')';
+                $res .= "\n/U (".$this->filterText($o['info']['U'], false, false).')';
                 // and the p-value needs to be converted to account for the twos-complement approach
                 $o['info']['p'] = (($o['info']['p'] ^ 255) + 1) * -1;
-                $res .= "\n/P " . ($o['info']['p']);
+                $res .= "\n/P ".($o['info']['p']);
                 $res .= "\n>>\nendobj";
 
                 return $res;
@@ -2785,7 +2785,7 @@ 
             case 'out':
                 $res = "\n$id 0 obj << ";
 
-                foreach($this->objects[$id]['info'] as $referenceObjName => $referenceObjId) {
+                foreach ($this->objects[$id]['info'] as $referenceObjName => $referenceObjId) {
                     $res .= "/$referenceObjName $referenceObjId 0 R ";
                 }
 
@@ -2827,7 +2827,7 @@ 
                             $filename = $entry['filename'];
                         }
 
-                        $res .= "($filename) " . $entry['dict_reference'] . " 0 R ";
+                        $res .= "($filename) ".$entry['dict_reference']." 0 R ";
                     }
 
                     $res .= "] >> endobj";
@@ -2862,7 +2862,7 @@ 
                 }
 
                 $res = "\n$id 0 obj <</Type /Filespec /EF";
-                $res .= " <</F " . $info['embedded_reference'] . " 0 R >>";
+                $res .= " <</F ".$info['embedded_reference']." 0 R >>";
                 $res .= " /F ($filename) /UF ($filename) /Desc ($description)";
                 $res .= " >> endobj";
                 return $res;
@@ -2906,8 +2906,8 @@ 
                 }
                 $file_size_compressed = mb_strlen($file_content_compressed, '8bit');
 
-                $res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>" .
-                    " /Type/EmbeddedFile /Filter/FlateDecode" .
+                $res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>".
+                    " /Type/EmbeddedFile /Filter/FlateDecode".
                     " /Length $file_size_compressed >> stream\n$file_content_compressed\nendstream\nendobj";
 
                 return $res;
@@ -2948,7 +2948,7 @@ 
         $tmp = $this->encryptionKey;
         $hex = dechex($id);
         if (mb_strlen($hex, '8bit') < 6) {
-            $hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')) . $hex;
+            $hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')).$hex;
         }
         $tmp .= chr(hexdec(substr($hex, 4, 2)))
             . chr(hexdec(substr($hex, 2, 2)))
@@ -3127,7 +3127,7 @@ 
 
         if ($this->fileIdentifier === '') {
             $tmp = implode('', $this->objects[$this->infoObject]['info']);
-            $this->fileIdentifier = md5('DOMPDF' . __FILE__ . $tmp . microtime() . mt_rand());
+            $this->fileIdentifier = md5('DOMPDF'.__FILE__.$tmp.microtime().mt_rand());
         }
 
         if ($this->arc4_objnum) {
@@ -3138,7 +3138,7 @@ 
         $this->checkAllHere();
 
         $xref = [];
-        $content = '%PDF-' . self::PDF_VERSION;
+        $content = '%PDF-'.self::PDF_VERSION;
         $pos = mb_strlen($content, '8bit');
 
         // pre-process o_font objects before output of all objects
@@ -3149,31 +3149,31 @@ 
         }
 
         foreach ($this->objects as $k => $v) {
-            $tmp = 'o_' . $v['t'];
+            $tmp = 'o_'.$v['t'];
             $cont = $this->$tmp($k, 'out');
             $content .= $cont;
             $xref[] = $pos + 1; //+1 to account for \n at the start of each object
             $pos += mb_strlen($cont, '8bit');
         }
 
-        $content .= "\nxref\n0 " . (count($xref) + 1) . "\n0000000000 65535 f \n";
+        $content .= "\nxref\n0 ".(count($xref) + 1)."\n0000000000 65535 f \n";
 
         foreach ($xref as $p) {
-            $content .= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
+            $content .= str_pad($p, 10, "0", STR_PAD_LEFT)." 00000 n \n";
         }
 
-        $content .= "trailer\n<<\n" .
-            '/Size ' . (count($xref) + 1) . "\n" .
-            '/Root 1 0 R' . "\n" .
-            '/Info ' . $this->infoObject . " 0 R\n"
+        $content .= "trailer\n<<\n".
+            '/Size '.(count($xref) + 1)."\n".
+            '/Root 1 0 R'."\n".
+            '/Info '.$this->infoObject." 0 R\n"
         ;
 
         // if encryption has been applied to this document then add the marker for this dictionary
         if ($this->arc4_objnum > 0) {
-            $content .= '/Encrypt ' . $this->arc4_objnum . " 0 R\n";
+            $content .= '/Encrypt '.$this->arc4_objnum." 0 R\n";
         }
 
-        $content .= '/ID[<' . $this->fileIdentifier . '><' . $this->fileIdentifier . ">]\n";
+        $content .= '/ID[<'.$this->fileIdentifier.'><'.$this->fileIdentifier.">]\n";
 
         // account for \n added at start of xref table
         $pos++;
@@ -3182,7 +3182,7 @@ 
 
         if (count($this->byteRange) > 0) {
             foreach ($this->byteRange as $k => $v) {
-                $tmp = 'o_' . $v['t'];
+                $tmp = 'o_'.$v['t'];
                 $this->$tmp($k, 'byterange', ['content' => &$content]);
             }
         }
@@ -3241,7 +3241,7 @@ 
     {
         // assume that $font contains the path and file but not the extension
         $name = basename($font);
-        $dir = dirname($font) . '/';
+        $dir = dirname($font).'/';
 
         $fontcache = $this->fontcache;
         if ($fontcache == '') {
@@ -3256,7 +3256,7 @@ 
 
         $this->addMessage("openFont: $font - $name");
 
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
+        if ( ! $this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
             $metrics_name = "$name.afm";
         } else {
             $metrics_name = "$name.ufm";
@@ -3265,11 +3265,11 @@ 
         $cache_name = "$metrics_name.php";
         $this->addMessage("metrics: $metrics_name, cache: $cache_name");
 
-        if (file_exists($fontcache . '/' . $cache_name)) {
+        if (file_exists($fontcache.'/'.$cache_name)) {
             $this->addMessage("openFont: php file exists $fontcache/$cache_name");
-            $this->fonts[$font] = require($fontcache . '/' . $cache_name);
+            $this->fonts[$font] = require($fontcache.'/'.$cache_name);
 
-            if (!isset($this->fonts[$font]['_version_']) || $this->fonts[$font]['_version_'] != $this->fontcacheVersion) {
+            if ( ! isset($this->fonts[$font]['_version_']) || $this->fonts[$font]['_version_'] != $this->fontcacheVersion) {
                 // if the font file is old, then clear it out and prepare for re-creation
                 $this->addMessage('openFont: clear out, make way for new version.');
                 $this->fonts[$font] = null;
@@ -3277,19 +3277,19 @@ 
             }
         } else {
             $old_cache_name = "php_$metrics_name";
-            if (file_exists($fontcache . '/' . $old_cache_name)) {
+            if (file_exists($fontcache.'/'.$old_cache_name)) {
                 $this->addMessage(
                     "openFont: php file doesn't exist $fontcache/$cache_name, creating it from the old format"
                 );
-                $old_cache = file_get_contents($fontcache . '/' . $old_cache_name);
-                file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . $old_cache . ';');
+                $old_cache = file_get_contents($fontcache.'/'.$old_cache_name);
+                file_put_contents($fontcache.'/'.$cache_name, '<?php return '.$old_cache.';');
 
                 $this->openFont($font);
                 return;
             }
         }
 
-        if (!isset($this->fonts[$font]) && file_exists($dir . $metrics_name)) {
+        if ( ! isset($this->fonts[$font]) && file_exists($dir.$metrics_name)) {
             // then rebuild the php_<font>.afm file from the <font>.afm file
             $this->addMessage("openFont: build php file from $dir$metrics_name");
             $data = [];
@@ -3306,7 +3306,7 @@ 
                 $cidtogid = str_pad('', 256 * 256 * 2, "\x00");
             }
 
-            $file = file($dir . $metrics_name);
+            $file = file($dir.$metrics_name);
 
             foreach ($file as $rowA) {
                 $row = trim($rowA);
@@ -3366,12 +3366,12 @@ 
                                 }
                             }
 
-                            $c = (int)$dtmp['C'];
+                            $c = (int) $dtmp['C'];
                             $n = $dtmp['N'];
                             $width = floatval($dtmp['WX']);
 
                             if ($c >= 0) {
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
+                                if ( ! ctype_xdigit($n) || $c != hexdec($n)) {
                                     $data['codeToName'][$c] = $n;
                                 }
                                 $data['C'][$c] = $width;
@@ -3379,7 +3379,7 @@ 
                                 $data['C'][$n] = $width;
                             }
 
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+                            if ( ! isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
                                 $data['MissingWidth'] = $width;
                             }
 
@@ -3387,7 +3387,7 @@ 
 
                         // U 827 ; WX 0 ; N squaresubnosp ; G 675 ;
                         case 'U': // Found in UFM files
-                            if (!$data['isUnicode']) {
+                            if ( ! $data['isUnicode']) {
                                 break;
                             }
 
@@ -3412,7 +3412,7 @@ 
                                 }
                             }
 
-                            $c = (int)$dtmp['U'];
+                            $c = (int) $dtmp['U'];
                             $n = $dtmp['N'];
                             $glyph = $dtmp['G'];
                             $width = floatval($dtmp['WX']);
@@ -3424,7 +3424,7 @@ 
                                     $cidtogid[$c * 2 + 1] = chr($glyph & 0xFF);
                                 }
 
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
+                                if ( ! ctype_xdigit($n) || $c != hexdec($n)) {
                                     $data['codeToName'][$c] = $n;
                                 }
                                 $data['C'][$c] = $width;
@@ -3432,7 +3432,7 @@ 
                                 $data['C'][$n] = $width;
                             }
 
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+                            if ( ! isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
                                 $data['MissingWidth'] = $width;
                             }
 
@@ -3460,12 +3460,12 @@ 
             //Because of potential trouble with php safe mode, expect that the folder already exists.
             //If not existing, this will hit performance because of missing cached results.
             if (is_dir($fontcache) && is_writable($fontcache)) {
-                file_put_contents($fontcache . '/' . $cache_name, '<?php return ' . var_export($data, true) . ';');
+                file_put_contents($fontcache.'/'.$cache_name, '<?php return '.var_export($data, true).';');
             }
             $data = null;
         }
 
-        if (!isset($this->fonts[$font])) {
+        if ( ! isset($this->fonts[$font])) {
             $this->addMessage("openFont: no font file found for $font. Do you need to run load_font.php?");
         }
 
@@ -3497,7 +3497,7 @@ 
             $fontName = substr($fontName, 0, mb_strlen($fontName) - 4);
         }
 
-        if (!isset($this->fonts[$fontName])) {
+        if ( ! isset($this->fonts[$fontName])) {
             $this->addMessage("selectFont: selecting - $fontName - $encoding, $set");
 
             // load the file
@@ -3634,7 +3634,7 @@ 
     {
         $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
 
-        if (!$force && $this->currentColor == $new_color) {
+        if ( ! $force && $this->currentColor == $new_color) {
             return;
         }
 
@@ -3656,7 +3656,7 @@ 
      */
     function setFillRule($fillRule)
     {
-        if (!in_array($fillRule, ["nonzero", "evenodd"])) {
+        if ( ! in_array($fillRule, ["nonzero", "evenodd"])) {
             return;
         }
 
@@ -3673,7 +3673,7 @@ 
     {
         $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
 
-        if (!$force && $this->currentStrokeColor == $new_color) {
+        if ( ! $force && $this->currentStrokeColor == $new_color) {
             return;
         }
 
@@ -3734,7 +3734,7 @@ 
             "Exclusion"
         ];
 
-        if (!in_array($mode, $blend_modes)) {
+        if ( ! in_array($mode, $blend_modes)) {
             $mode = "Normal";
         }
 
@@ -3754,7 +3754,7 @@ 
 
         $options = [
             "BM" => "/$mode",
-            "CA" => (float)$opacity
+            "CA" => (float) $opacity
         ];
 
         $this->setGraphicsState($options);
@@ -3789,7 +3789,7 @@ 
             "Exclusion"
         ];
 
-        if (!in_array($mode, $blend_modes)) {
+        if ( ! in_array($mode, $blend_modes)) {
             $mode = "Normal";
         }
 
@@ -3809,7 +3809,7 @@ 
 
         $options = [
             "BM" => "/$mode",
-            "ca" => (float)$opacity,
+            "ca" => (float) $opacity,
         ];
 
         $this->setGraphicsState($options);
@@ -3989,15 +3989,15 @@ 
             $nSeg = 2;
         }
 
-        $astart = deg2rad((float)$astart);
-        $afinish = deg2rad((float)$afinish);
+        $astart = deg2rad((float) $astart);
+        $afinish = deg2rad((float) $afinish);
         $totalAngle = $afinish - $astart;
 
         $dt = $totalAngle / $nSeg;
         $dtm = $dt / 3;
 
         if ($angle != 0) {
-            $a = -1 * deg2rad((float)$angle);
+            $a = -1 * deg2rad((float) $angle);
 
             $this->addContent(
                 sprintf("\n q %.3F %.3F %.3F %.3F %.3F %.3F cm", cos($a), -sin($a), sin($a), cos($a), $x0, $y0)
@@ -4013,7 +4013,7 @@ 
         $c0 = -$r1 * sin($t1);
         $d0 = $r2 * cos($t1);
 
-        if (!$incomplete) {
+        if ( ! $incomplete) {
             $this->addContent(sprintf("\n%.3F %.3F m ", $a0, $b0));
         }
 
@@ -4043,7 +4043,7 @@ 
             $d0 = $d1;
         }
 
-        if (!$incomplete) {
+        if ( ! $incomplete) {
             if ($fill) {
                 $this->addContent(' f');
             }
@@ -4103,7 +4103,7 @@ 
         }
 
         if (is_array($dash)) {
-            $string .= ' [ ' . implode(' ', $dash) . " ] $phase d";
+            $string .= ' [ '.implode(' ', $dash)." ] $phase d";
         }
 
         $this->currentLineStyle = $string;
@@ -4176,17 +4176,17 @@ 
 
     function stroke(bool $close = false)
     {
-        $this->addContent("\n" . ($close ? "s" : "S"));
+        $this->addContent("\n".($close ? "s" : "S"));
     }
 
     function fill()
     {
-        $this->addContent("\nf" . ($this->fillRule === "evenodd" ? "*" : ""));
+        $this->addContent("\nf".($this->fillRule === "evenodd" ? "*" : ""));
     }
 
     function fillStroke(bool $close = false)
     {
-        $this->addContent("\n" . ($close ? "b" : "B") . ($this->fillRule === "evenodd" ? "*" : ""));
+        $this->addContent("\n".($close ? "b" : "B").($this->fillRule === "evenodd" ? "*" : ""));
     }
 
     /**
@@ -4272,11 +4272,11 @@ 
      */
     public function addFormField($type, $name, $x0, $y0, $x1, $y1, $ff = 0, $size = 10.0, $color = [0, 0, 0])
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
-        $color = implode(' ', $color) . ' rg';
+        $color = implode(' ', $color).' rg';
 
         $currentFontNum = $this->currentFontNum;
         $font = array_filter($this->objects[$this->currentNode]['info']['fonts'],
@@ -4293,7 +4293,7 @@ 
           'T' => $name,
           'Ff' => $ff,
           'pageid' => $this->currentPage,
-          'da' => "$color /F$this->currentFontNum " . sprintf('%.1F Tf ', $size)
+          'da' => "$color /F$this->currentFontNum ".sprintf('%.1F Tf ', $size)
         ]);
 
         return $fieldId;
@@ -4641,17 +4641,17 @@ 
             die("Unable to stream pdf: headers already sent");
         }
 
-        if (!isset($options["compress"])) $options["compress"] = true;
-        if (!isset($options["Attachment"])) $options["Attachment"] = true;
+        if ( ! isset($options["compress"])) $options["compress"] = true;
+        if ( ! isset($options["Attachment"])) $options["Attachment"] = true;
 
-        $debug = !$options['compress'];
+        $debug = ! $options['compress'];
         $tmp = ltrim($this->output($debug));
 
         header("Cache-Control: private");
         header("Content-Type: application/pdf");
-        header("Content-Length: " . mb_strlen($tmp, "8bit"));
+        header("Content-Length: ".mb_strlen($tmp, "8bit"));
 
-        $filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
+        $filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")).".pdf";
         $attachment = $options["Attachment"] ? "attachment" : "inline";
 
         $encoding = mb_detect_encoding($filename);
@@ -4677,7 +4677,7 @@ 
      */
     function getFontHeight($size)
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4700,7 +4700,7 @@ 
             // Courier font.
             //
             // Both have been added manually to the .afm and .ufm files.
-            $h += (int)$font['FontHeightOffset'];
+            $h += (int) $font['FontHeightOffset'];
         }
 
         return $size * $h / 1000;
@@ -4712,7 +4712,7 @@ 
      */
     function getFontXHeight($size)
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4739,7 +4739,7 @@ 
     function getFontDescender($size)
     {
         // note that this will most likely return a negative value
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4762,7 +4762,7 @@ 
      */
     function filterText($text, $bom = true, $convert_encoding = true)
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4882,12 +4882,12 @@ 
             if ($c === 0xFFFD) {
                 $out .= "\xFF\xFD"; // replacement character
             } elseif ($c < 0x10000) {
-                $out .= chr($c >> 0x08) . chr($c & 0xFF);
+                $out .= chr($c >> 0x08).chr($c & 0xFF);
             } else {
                 $c -= 0x10000;
                 $w1 = 0xD800 | ($c >> 0x10);
                 $w2 = 0xDC00 | ($c & 0x3FF);
-                $out .= chr($w1 >> 0x08) . chr($w1 & 0xFF) . chr($w2 >> 0x08) . chr($w2 & 0xFF);
+                $out .= chr($w1 >> 0x08).chr($w1 & 0xFF).chr($w2 >> 0x08).chr($w2 & 0xFF);
             }
         }
 
@@ -4915,7 +4915,7 @@ 
         $words = explode(' ', $text);
         $nspaces = count($words) - 1;
         $w += $wa * $nspaces;
-        $a = deg2rad((float)$angle);
+        $a = deg2rad((float) $angle);
 
         return [cos($a) * $w + $x, -sin($a) * $w + $y];
     }
@@ -4950,11 +4950,11 @@ 
      */
     function registerText($font, $text)
     {
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
+        if ( ! $this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
             return;
         }
 
-        if (!isset($this->stringSubsets[$font])) {
+        if ( ! isset($this->stringSubsets[$font])) {
             $this->stringSubsets[$font] = [];
         }
 
@@ -4977,7 +4977,7 @@ 
      */
     function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0, $charSpaceAdjust = 0, $smallCaps = false)
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -5018,7 +5018,7 @@ 
         if ($angle == 0) {
             $this->addContent(sprintf("\nBT %.3F %.3F Td", $x, $y));
         } else {
-            $a = deg2rad((float)$angle);
+            $a = deg2rad((float) $angle);
             $this->addContent(
                 sprintf("\nBT %.3F %.3F %.3F %.3F %.3F %.3F Tm", cos($a), -sin($a), sin($a), cos($a), $x, $y)
             );
@@ -5041,9 +5041,9 @@ 
             // modify unicode text so that extra word spacing is manually implemented (bug #)
             if ($this->fonts[$this->currentFont]['isUnicode'] && $wordSpaceAdjust != 0) {
                 $space_scale = 1000 / $size;
-                $place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20" . (-round($space_scale * $wordSpaceAdjust)) . "\x00\x20(", $place_text);
+                $place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20".(-round($space_scale * $wordSpaceAdjust))."\x00\x20(", $place_text);
             }
-            $this->addContent(" /F$this->currentFontNum " . sprintf('%.1F Tf ', $size));
+            $this->addContent(" /F$this->currentFontNum ".sprintf('%.1F Tf ', $size));
             $this->addContent(" [($place_text)] TJ");
         }
 
@@ -5101,7 +5101,7 @@ 
         // and put them back at the end.
         $store_currentTextState = $this->currentTextState;
 
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -5205,7 +5205,7 @@ 
             // ok to use this as stack starts numbering at 1
             $this->setColor($opt['col'], true);
             $this->setStrokeColor($opt['str'], true);
-            $this->addContent("\n" . $opt['lin']);
+            $this->addContent("\n".$opt['lin']);
             //    $this->currentLineStyle = $opt['lin'];
         } else {
             $this->nStateStack++;
@@ -5226,11 +5226,11 @@ 
      */
     function restoreState($pageEnd = 0)
     {
-        if (!$pageEnd) {
+        if ( ! $pageEnd) {
             $n = $this->nStateStack;
             $this->currentColor = $this->stateStack[$n]['col'];
             $this->currentStrokeColor = $this->stateStack[$n]['str'];
-            $this->addContent("\n" . $this->stateStack[$n]['lin']);
+            $this->addContent("\n".$this->stateStack[$n]['lin']);
             $this->currentLineStyle = $this->stateStack[$n]['lin'];
             $this->stateStack[$n] = null;
             unset($this->stateStack[$n]);
@@ -5504,7 +5504,7 @@ 
      */
     function addImagePng(&$img, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
     {
-        if (!function_exists("imagepng")) {
+        if ( ! function_exists("imagepng")) {
             throw new \Exception("The PHP GD extension is required, but is not installed.");
         }
 
@@ -5530,7 +5530,7 @@ 
             //DEBUG_IMG_TEMP
             //debugpng
             if (defined("DEBUGPNG") && DEBUGPNG) {
-                print '[addImagePng ' . $file . ']';
+                print '[addImagePng '.$file.']';
             }
 
             ob_start();
@@ -5548,7 +5548,7 @@ 
             }
 
             if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+                $this->addMessage('PNG error - ('.$file.') '.$errormsg);
 
                 return;
             }
@@ -5699,9 +5699,9 @@ 
                         // without gamma correction
                         $pixel = (127 - $alpha) * 2;
 
-                        $key = $col['red'] . $col['green'] . $col['blue'];
+                        $key = $col['red'].$col['green'].$col['blue'];
 
-                        if (!isset($allocated_colors[$key])) {
+                        if ( ! isset($allocated_colors[$key])) {
                             $pixel_img = imagecolorallocate($img, $col['red'], $col['green'], $col['blue']);
                             $allocated_colors[$key] = $pixel_img;
                         } else {
@@ -5752,7 +5752,7 @@ 
      */
     function addPngFromFile($file, $x, $y, $w = 0, $h = 0)
     {
-        if (!function_exists("imagecreatefrompng")) {
+        if ( ! function_exists("imagecreatefrompng")) {
             throw new \Exception("The PHP GD extension is required, but is not installed.");
         }
 
@@ -5800,7 +5800,7 @@ 
             //Therefore create an empty image with white background and merge the
             //image in with alpha blending.
             $imgtmp = @imagecreatefrompng($file);
-            if (!$imgtmp) {
+            if ( ! $imgtmp) {
                 return;
             }
             $sx = imagesx($imgtmp);
@@ -5857,21 +5857,21 @@ 
 
             $error = 0;
 
-            if (!$error) {
-                $header = chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10);
+            if ( ! $error) {
+                $header = chr(137).chr(80).chr(78).chr(71).chr(13).chr(10).chr(26).chr(10);
 
                 if (mb_substr($data, 0, 8, '8bit') != $header) {
                     $error = 1;
 
                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile this file does not have a valid header ' . $file . ']';
+                        print '[addPngFromFile this file does not have a valid header '.$file.']';
                     }
 
                     $errormsg = 'this file does not have a valid header';
                 }
             }
 
-            if (!$error) {
+            if ( ! $error) {
                 // set pointer
                 $p = 8;
                 $len = mb_strlen($data, '8bit');
@@ -5904,7 +5904,7 @@ 
 
                                 //debugpng
                                 if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported compression method ' . $file . ']';
+                                    print '[addPngFromFile unsupported compression method '.$file.']';
                                 }
 
                                 $errormsg = 'unsupported compression method';
@@ -5915,7 +5915,7 @@ 
 
                                 //debugpng
                                 if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported filter method ' . $file . ']';
+                                    print '[addPngFromFile unsupported filter method '.$file.']';
                                 }
 
                                 $errormsg = 'unsupported filter method';
@@ -5987,7 +5987,7 @@ 
                                 //unsupported transparency type
                                 default:
                                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                                        print '[addPngFromFile unsupported transparency type ' . $file . ']';
+                                        print '[addPngFromFile unsupported transparency type '.$file.']';
                                     }
                                     break;
                             }
@@ -6002,12 +6002,12 @@ 
                     $p += $chunkLen + 12;
                 }
 
-                if (!$haveHeader) {
+                if ( ! $haveHeader) {
                     $error = 1;
 
                     //debugpng
                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile information header is missing ' . $file . ']';
+                        print '[addPngFromFile information header is missing '.$file.']';
                     }
 
                     $errormsg = 'information header is missing';
@@ -6018,25 +6018,25 @@ 
 
                     //debugpng
                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile no support for interlaced images in pdf ' . $file . ']';
+                        print '[addPngFromFile no support for interlaced images in pdf '.$file.']';
                     }
 
                     $errormsg = 'There appears to be no support for interlaced images in pdf.';
                 }
             }
 
-            if (!$error && $info['bitDepth'] > 8) {
+            if ( ! $error && $info['bitDepth'] > 8) {
                 $error = 1;
 
                 //debugpng
                 if (defined("DEBUGPNG") && DEBUGPNG) {
-                    print '[addPngFromFile bit depth of 8 or less is supported ' . $file . ']';
+                    print '[addPngFromFile bit depth of 8 or less is supported '.$file.']';
                 }
 
                 $errormsg = 'only bit depth of 8 or less is supported';
             }
 
-            if (!$error) {
+            if ( ! $error) {
                 switch ($info['colorType']) {
                     case 3:
                         $color = 'DeviceRGB';
@@ -6058,7 +6058,7 @@ 
 
                         //debugpng
                         if (defined("DEBUGPNG") && DEBUGPNG) {
-                            print '[addPngFromFile alpha channel not supported: ' . $info['colorType'] . ' ' . $file . ']';
+                            print '[addPngFromFile alpha channel not supported: '.$info['colorType'].' '.$file.']';
                         }
 
                         $errormsg = 'transparency alpha channel not supported, transparency only supported for palette images.';
@@ -6066,7 +6066,7 @@ 
             }
 
             if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+                $this->addMessage('PNG error - ('.$file.') '.$errormsg);
 
                 return;
             }
@@ -6135,7 +6135,7 @@ 
         // attempt to add a jpeg image straight from a file, using no GD commands
         // note that this function is unable to operate on a remote file.
 
-        if (!file_exists($img)) {
+        if ( ! file_exists($img)) {
             return;
         }
 
@@ -6203,7 +6203,7 @@ 
 
         } else {
             if ($data == null) {
-                $this->addMessage('addJpegImage_common error - (' . $imgname . ') data not present!');
+                $this->addMessage('addJpegImage_common error - ('.$imgname.') data not present!');
 
                 return;
             }
@@ -6314,7 +6314,7 @@ 
      */
     function setFontFamily($family, $options = '')
     {
-        if (!is_array($options)) {
+        if ( ! is_array($options)) {
             if ($family === 'init') {
                 // set the known family groups
                 // these font families will be used to enable bold and italic markers to be included
@@ -6360,7 +6360,7 @@ 
      */
     function addMessage($message)
     {
-        $this->messages .= $message . "\n";
+        $this->messages .= $message."\n";
     }
 
     /**

vendor/phenx/php-svg-lib/src/Svg/Surface/SurfaceCpdf.php

Indentation +477 added lines, -477 removed lines

@@ -13,483 +13,483 @@
 
 class SurfaceCpdf implements SurfaceInterface
 {
-    const DEBUG = false;
-
-    /** @var \Svg\Surface\CPdf */
-    private $canvas;
-
-    private $width;
-    private $height;
-
-    /** @var Style */
-    private $style;
-
-    public function __construct(Document $doc, $canvas = null)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        $dimensions = $doc->getDimensions();
-        $w = $dimensions["width"];
-        $h = $dimensions["height"];
-
-        if (!$canvas) {
-            $canvas = new \Svg\Surface\CPdf(array(0, 0, $w, $h));
-            $refl = new \ReflectionClass($canvas);
-            $canvas->fontcache = realpath(dirname($refl->getFileName()) . "/../../fonts/")."/";
-        }
-
-        // Flip PDF coordinate system so that the origin is in
-        // the top left rather than the bottom left
-        $canvas->transform(array(
-            1,  0,
-            0, -1,
-            0, $h
-        ));
-
-        $this->width  = $w;
-        $this->height = $h;
-
-        $this->canvas = $canvas;
-    }
-
-    function out()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        return $this->canvas->output();
-    }
-
-    public function save()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->save();
-    }
-
-    public function restore()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->restore();
-    }
-
-    public function scale($x, $y)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        $this->transform($x, 0, 0, $y, 0, 0);
-    }
-
-    public function rotate($angle)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        $a = deg2rad($angle);
-        $cos_a = cos($a);
-        $sin_a = sin($a);
-
-        $this->transform(
-            $cos_a,                         $sin_a,
-            -$sin_a,                         $cos_a,
-            0, 0
-        );
-    }
-
-    public function translate($x, $y)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        $this->transform(
-            1,  0,
-            0,  1,
-            $x, $y
-        );
-    }
-
-    public function transform($a, $b, $c, $d, $e, $f)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        $this->canvas->transform(array($a, $b, $c, $d, $e, $f));
-    }
-
-    public function beginPath()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        // TODO: Implement beginPath() method.
-    }
-
-    public function closePath()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->closePath();
-    }
-
-    public function fillStroke(bool $close = false)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->fillStroke($close);
-    }
-
-    public function clip()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->clip();
-    }
-
-    public function fillText($text, $x, $y, $maxWidth = null)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->addText($x, $y, $this->style->fontSize, $text);
-    }
-
-    public function strokeText($text, $x, $y, $maxWidth = null)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->addText($x, $y, $this->style->fontSize, $text);
-    }
-
-    public function drawImage($image, $sx, $sy, $sw = null, $sh = null, $dx = null, $dy = null, $dw = null, $dh = null)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        if (strpos($image, "data:") === 0) {
-            $parts = explode(',', $image, 2);
-
-            $data = $parts[1];
-            $base64 = false;
-
-            $token = strtok($parts[0], ';');
-            while ($token !== false) {
-                if ($token == 'base64') {
-                    $base64 = true;
-                }
-
-                $token = strtok(';');
-            }
-
-            if ($base64) {
-                $data = base64_decode($data);
-            }
-        }
-        else {
-            $data = file_get_contents($image);
-        }
-
-        $image = tempnam(sys_get_temp_dir(), "svg");
-        file_put_contents($image, $data);
-
-        $img = $this->image($image, $sx, $sy, $sw, $sh, "normal");
-
-
-        unlink($image);
-    }
-
-    public static function getimagesize($filename)
-    {
-        static $cache = array();
-
-        if (isset($cache[$filename])) {
-            return $cache[$filename];
-        }
-
-        list($width, $height, $type) = getimagesize($filename);
-
-        if ($width == null || $height == null) {
-            $data = file_get_contents($filename, null, null, 0, 26);
-
-            if (substr($data, 0, 2) === "BM") {
-                $meta = unpack('vtype/Vfilesize/Vreserved/Voffset/Vheadersize/Vwidth/Vheight', $data);
-                $width = (int)$meta['width'];
-                $height = (int)$meta['height'];
-                $type = IMAGETYPE_BMP;
-            }
-        }
-
-        return $cache[$filename] = array($width, $height, $type);
-    }
-
-    function image($img, $x, $y, $w, $h, $resolution = "normal")
-    {
-        list($width, $height, $type) = $this->getimagesize($img);
-
-        switch ($type) {
-            case IMAGETYPE_JPEG:
-                $this->canvas->addJpegFromFile($img, $x, $y - $h, $w, $h);
-                break;
-
-            case IMAGETYPE_GIF:
-            case IMAGETYPE_BMP:
-                // @todo use cache for BMP and GIF
-                $img = $this->_convert_gif_bmp_to_png($img, $type);
-
-            case IMAGETYPE_PNG:
-                $this->canvas->addPngFromFile($img, $x, $y - $h, $w, $h);
-                break;
-
-            default:
-        }
-    }
-
-    public function lineTo($x, $y)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->lineTo($x, $y);
-    }
-
-    public function moveTo($x, $y)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->moveTo($x, $y);
-    }
-
-    public function quadraticCurveTo($cpx, $cpy, $x, $y)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        // FIXME not accurate
-        $this->canvas->quadTo($cpx, $cpy, $x, $y);
-    }
-
-    public function bezierCurveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->curveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y);
-    }
-
-    public function arcTo($x1, $y1, $x2, $y2, $radius)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-    }
-
-    public function arc($x, $y, $radius, $startAngle, $endAngle, $anticlockwise = false)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, $startAngle, $endAngle, false, false, false, true);
-    }
-
-    public function circle($x, $y, $radius)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, 0, 360, true, false, false, false);
-    }
-
-    public function ellipse($x, $y, $radiusX, $radiusY, $rotation, $startAngle, $endAngle, $anticlockwise)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->ellipse($x, $y, $radiusX, $radiusY, 0, 8, 0, 360, false, false, false, false);
-    }
-
-    public function fillRect($x, $y, $w, $h)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->rect($x, $y, $w, $h);
-        $this->fill();
-    }
-
-    public function rect($x, $y, $w, $h, $rx = 0, $ry = 0)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        $canvas = $this->canvas;
-
-        if ($rx <= 0.000001/* && $ry <= 0.000001*/) {
-            $canvas->rect($x, $y, $w, $h);
-
-            return;
-        }
-
-        $rx = min($rx, $w / 2);
-        $rx = min($rx, $h / 2);
-
-        /* Define a path for a rectangle with corners rounded by a given radius.
+	const DEBUG = false;
+
+	/** @var \Svg\Surface\CPdf */
+	private $canvas;
+
+	private $width;
+	private $height;
+
+	/** @var Style */
+	private $style;
+
+	public function __construct(Document $doc, $canvas = null)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		$dimensions = $doc->getDimensions();
+		$w = $dimensions["width"];
+		$h = $dimensions["height"];
+
+		if (!$canvas) {
+			$canvas = new \Svg\Surface\CPdf(array(0, 0, $w, $h));
+			$refl = new \ReflectionClass($canvas);
+			$canvas->fontcache = realpath(dirname($refl->getFileName()) . "/../../fonts/")."/";
+		}
+
+		// Flip PDF coordinate system so that the origin is in
+		// the top left rather than the bottom left
+		$canvas->transform(array(
+			1,  0,
+			0, -1,
+			0, $h
+		));
+
+		$this->width  = $w;
+		$this->height = $h;
+
+		$this->canvas = $canvas;
+	}
+
+	function out()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		return $this->canvas->output();
+	}
+
+	public function save()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->save();
+	}
+
+	public function restore()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->restore();
+	}
+
+	public function scale($x, $y)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		$this->transform($x, 0, 0, $y, 0, 0);
+	}
+
+	public function rotate($angle)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		$a = deg2rad($angle);
+		$cos_a = cos($a);
+		$sin_a = sin($a);
+
+		$this->transform(
+			$cos_a,                         $sin_a,
+			-$sin_a,                         $cos_a,
+			0, 0
+		);
+	}
+
+	public function translate($x, $y)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		$this->transform(
+			1,  0,
+			0,  1,
+			$x, $y
+		);
+	}
+
+	public function transform($a, $b, $c, $d, $e, $f)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		$this->canvas->transform(array($a, $b, $c, $d, $e, $f));
+	}
+
+	public function beginPath()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		// TODO: Implement beginPath() method.
+	}
+
+	public function closePath()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->closePath();
+	}
+
+	public function fillStroke(bool $close = false)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->fillStroke($close);
+	}
+
+	public function clip()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->clip();
+	}
+
+	public function fillText($text, $x, $y, $maxWidth = null)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->addText($x, $y, $this->style->fontSize, $text);
+	}
+
+	public function strokeText($text, $x, $y, $maxWidth = null)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->addText($x, $y, $this->style->fontSize, $text);
+	}
+
+	public function drawImage($image, $sx, $sy, $sw = null, $sh = null, $dx = null, $dy = null, $dw = null, $dh = null)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		if (strpos($image, "data:") === 0) {
+			$parts = explode(',', $image, 2);
+
+			$data = $parts[1];
+			$base64 = false;
+
+			$token = strtok($parts[0], ';');
+			while ($token !== false) {
+				if ($token == 'base64') {
+					$base64 = true;
+				}
+
+				$token = strtok(';');
+			}
+
+			if ($base64) {
+				$data = base64_decode($data);
+			}
+		}
+		else {
+			$data = file_get_contents($image);
+		}
+
+		$image = tempnam(sys_get_temp_dir(), "svg");
+		file_put_contents($image, $data);
+
+		$img = $this->image($image, $sx, $sy, $sw, $sh, "normal");
+
+
+		unlink($image);
+	}
+
+	public static function getimagesize($filename)
+	{
+		static $cache = array();
+
+		if (isset($cache[$filename])) {
+			return $cache[$filename];
+		}
+
+		list($width, $height, $type) = getimagesize($filename);
+
+		if ($width == null || $height == null) {
+			$data = file_get_contents($filename, null, null, 0, 26);
+
+			if (substr($data, 0, 2) === "BM") {
+				$meta = unpack('vtype/Vfilesize/Vreserved/Voffset/Vheadersize/Vwidth/Vheight', $data);
+				$width = (int)$meta['width'];
+				$height = (int)$meta['height'];
+				$type = IMAGETYPE_BMP;
+			}
+		}
+
+		return $cache[$filename] = array($width, $height, $type);
+	}
+
+	function image($img, $x, $y, $w, $h, $resolution = "normal")
+	{
+		list($width, $height, $type) = $this->getimagesize($img);
+
+		switch ($type) {
+			case IMAGETYPE_JPEG:
+				$this->canvas->addJpegFromFile($img, $x, $y - $h, $w, $h);
+				break;
+
+			case IMAGETYPE_GIF:
+			case IMAGETYPE_BMP:
+				// @todo use cache for BMP and GIF
+				$img = $this->_convert_gif_bmp_to_png($img, $type);
+
+			case IMAGETYPE_PNG:
+				$this->canvas->addPngFromFile($img, $x, $y - $h, $w, $h);
+				break;
+
+			default:
+		}
+	}
+
+	public function lineTo($x, $y)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->lineTo($x, $y);
+	}
+
+	public function moveTo($x, $y)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->moveTo($x, $y);
+	}
+
+	public function quadraticCurveTo($cpx, $cpy, $x, $y)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		// FIXME not accurate
+		$this->canvas->quadTo($cpx, $cpy, $x, $y);
+	}
+
+	public function bezierCurveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->curveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y);
+	}
+
+	public function arcTo($x1, $y1, $x2, $y2, $radius)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+	}
+
+	public function arc($x, $y, $radius, $startAngle, $endAngle, $anticlockwise = false)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, $startAngle, $endAngle, false, false, false, true);
+	}
+
+	public function circle($x, $y, $radius)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, 0, 360, true, false, false, false);
+	}
+
+	public function ellipse($x, $y, $radiusX, $radiusY, $rotation, $startAngle, $endAngle, $anticlockwise)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->ellipse($x, $y, $radiusX, $radiusY, 0, 8, 0, 360, false, false, false, false);
+	}
+
+	public function fillRect($x, $y, $w, $h)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->rect($x, $y, $w, $h);
+		$this->fill();
+	}
+
+	public function rect($x, $y, $w, $h, $rx = 0, $ry = 0)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		$canvas = $this->canvas;
+
+		if ($rx <= 0.000001/* && $ry <= 0.000001*/) {
+			$canvas->rect($x, $y, $w, $h);
+
+			return;
+		}
+
+		$rx = min($rx, $w / 2);
+		$rx = min($rx, $h / 2);
+
+		/* Define a path for a rectangle with corners rounded by a given radius.
          * Start from the lower left corner and proceed counterclockwise.
          */
-        $this->moveTo($x + $rx, $y);
-
-        /* Start of the arc segment in the lower right corner */
-        $this->lineTo($x + $w - $rx, $y);
-
-        /* Arc segment in the lower right corner */
-        $this->arc($x + $w - $rx, $y + $rx, $rx, 270, 360);
-
-        /* Start of the arc segment in the upper right corner */
-        $this->lineTo($x + $w, $y + $h - $rx );
-
-        /* Arc segment in the upper right corner */
-        $this->arc($x + $w - $rx, $y + $h - $rx, $rx, 0, 90);
-
-        /* Start of the arc segment in the upper left corner */
-        $this->lineTo($x + $rx, $y + $h);
-
-        /* Arc segment in the upper left corner */
-        $this->arc($x + $rx, $y + $h - $rx, $rx, 90, 180);
-
-        /* Start of the arc segment in the lower left corner */
-        $this->lineTo($x , $y + $rx);
-
-        /* Arc segment in the lower left corner */
-        $this->arc($x + $rx, $y + $rx, $rx, 180, 270);
-    }
-
-    public function fill()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->fill();
-    }
-
-    public function strokeRect($x, $y, $w, $h)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->rect($x, $y, $w, $h);
-        $this->stroke();
-    }
-
-    public function stroke(bool $close = false)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->stroke($close);
-    }
-
-    public function endPath()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $this->canvas->endPath();
-    }
-
-    public function measureText($text)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        $style = $this->getStyle();
-        $this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
-
-        return $this->canvas->getTextWidth($this->getStyle()->fontSize, $text);
-    }
-
-    public function getStyle()
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-        return $this->style;
-    }
-
-    public function setStyle(Style $style)
-    {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
-
-        $this->style = $style;
-        $canvas = $this->canvas;
-
-        if (is_array($style->stroke) && $stroke = $style->stroke) {
-            $canvas->setStrokeColor(array((float)$stroke[0]/255, (float)$stroke[1]/255, (float)$stroke[2]/255), true);
-        }
-
-        if (is_array($style->fill) && $fill = $style->fill) {
-            $canvas->setColor(array((float)$fill[0]/255, (float)$fill[1]/255, (float)$fill[2]/255), true);
-        }
-
-        if ($fillRule = strtolower($style->fillRule)) {
-            $canvas->setFillRule($fillRule);
-        }
-
-        $opacity = $style->opacity;
-        if ($opacity !== null && $opacity < 1.0) {
-            $canvas->setLineTransparency("Normal", $opacity);
-            $canvas->currentLineTransparency = null;
-
-            $canvas->setFillTransparency("Normal", $opacity);
-            $canvas->currentFillTransparency = null;
-        }
-        else {
-            $fillOpacity = $style->fillOpacity;
-            if ($fillOpacity !== null && $fillOpacity < 1.0) {
-                $canvas->setFillTransparency("Normal", $fillOpacity);
-                $canvas->currentFillTransparency = null;
-            }
-
-            $strokeOpacity = $style->strokeOpacity;
-            if ($strokeOpacity !== null && $strokeOpacity < 1.0) {
-                $canvas->setLineTransparency("Normal", $strokeOpacity);
-                $canvas->currentLineTransparency = null;
-            }
-        }
-
-        $dashArray = null;
-        if ($style->strokeDasharray) {
-            $dashArray = preg_split('/\s*,\s*/', $style->strokeDasharray);
-        }
-
-
-        $phase=0;
-        if ($style->strokeDashoffset) {
-           $phase = $style->strokeDashoffset;
-        }
-
-
-        $canvas->setLineStyle(
-            $style->strokeWidth,
-            $style->strokeLinecap,
-            $style->strokeLinejoin,
-            $dashArray,
-            $phase
-        );
-
-        $this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
-    }
-
-    public function setFont($family, $style, $weight)
-    {
-        $map = [
-            "serif"      => "times",
-            "sans-serif" => "helvetica",
-            "fantasy"    => "symbol",
-            "cursive"    => "times",
-            "monospace"  => "courier"
-        ];
-
-        $styleMap = [
-            "courier" => [
-                ""   => "Courier",
-                "b"  => "Courier-Bold",
-                "i"  => "Courier-Oblique",
-                "bi" => "Courier-BoldOblique",
-            ],
-            "helvetica" => [
-                ""   => "Helvetica",
-                "b"  => "Helvetica-Bold",
-                "i"  => "Helvetica-Oblique",
-                "bi" => "Helvetica-BoldOblique",
-            ],
-            "symbol" => [
-                "" => "Symbol"
-            ],
-            "times" => [
-                ""   => "Times-Roman",
-                "b"  => "Times-Bold",
-                "i"  => "Times-Italic",
-                "bi" => "Times-BoldItalic",
-            ],
-        ];
-
-        $family_lc = strtolower($family);
-        if (isset($map[$family_lc])) {
-            $family = $map[$family_lc];
-        }
-
-        if (isset($styleMap[$family])) {
-            $key = "";
-
-            $weight = strtolower($weight);
-            if ($weight === "bold" || $weight === "bolder" || (is_numeric($weight) && $weight >= 600)) {
-                $key .= "b";
-            }
-
-            $style = strtolower($style);
-            if ($style === "italic" || $style === "oblique") {
-                $key .= "i";
-            }
-
-            if (isset($styleMap[$family][$key])) {
-                $family = $styleMap[$family][$key];
-            }
-        }
-
-        $this->canvas->selectFont("$family.afm");
-    }
+		$this->moveTo($x + $rx, $y);
+
+		/* Start of the arc segment in the lower right corner */
+		$this->lineTo($x + $w - $rx, $y);
+
+		/* Arc segment in the lower right corner */
+		$this->arc($x + $w - $rx, $y + $rx, $rx, 270, 360);
+
+		/* Start of the arc segment in the upper right corner */
+		$this->lineTo($x + $w, $y + $h - $rx );
+
+		/* Arc segment in the upper right corner */
+		$this->arc($x + $w - $rx, $y + $h - $rx, $rx, 0, 90);
+
+		/* Start of the arc segment in the upper left corner */
+		$this->lineTo($x + $rx, $y + $h);
+
+		/* Arc segment in the upper left corner */
+		$this->arc($x + $rx, $y + $h - $rx, $rx, 90, 180);
+
+		/* Start of the arc segment in the lower left corner */
+		$this->lineTo($x , $y + $rx);
+
+		/* Arc segment in the lower left corner */
+		$this->arc($x + $rx, $y + $rx, $rx, 180, 270);
+	}
+
+	public function fill()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->fill();
+	}
+
+	public function strokeRect($x, $y, $w, $h)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->rect($x, $y, $w, $h);
+		$this->stroke();
+	}
+
+	public function stroke(bool $close = false)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->stroke($close);
+	}
+
+	public function endPath()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$this->canvas->endPath();
+	}
+
+	public function measureText($text)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		$style = $this->getStyle();
+		$this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
+
+		return $this->canvas->getTextWidth($this->getStyle()->fontSize, $text);
+	}
+
+	public function getStyle()
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+		return $this->style;
+	}
+
+	public function setStyle(Style $style)
+	{
+		if (self::DEBUG) echo __FUNCTION__ . "\n";
+
+		$this->style = $style;
+		$canvas = $this->canvas;
+
+		if (is_array($style->stroke) && $stroke = $style->stroke) {
+			$canvas->setStrokeColor(array((float)$stroke[0]/255, (float)$stroke[1]/255, (float)$stroke[2]/255), true);
+		}
+
+		if (is_array($style->fill) && $fill = $style->fill) {
+			$canvas->setColor(array((float)$fill[0]/255, (float)$fill[1]/255, (float)$fill[2]/255), true);
+		}
+
+		if ($fillRule = strtolower($style->fillRule)) {
+			$canvas->setFillRule($fillRule);
+		}
+
+		$opacity = $style->opacity;
+		if ($opacity !== null && $opacity < 1.0) {
+			$canvas->setLineTransparency("Normal", $opacity);
+			$canvas->currentLineTransparency = null;
+
+			$canvas->setFillTransparency("Normal", $opacity);
+			$canvas->currentFillTransparency = null;
+		}
+		else {
+			$fillOpacity = $style->fillOpacity;
+			if ($fillOpacity !== null && $fillOpacity < 1.0) {
+				$canvas->setFillTransparency("Normal", $fillOpacity);
+				$canvas->currentFillTransparency = null;
+			}
+
+			$strokeOpacity = $style->strokeOpacity;
+			if ($strokeOpacity !== null && $strokeOpacity < 1.0) {
+				$canvas->setLineTransparency("Normal", $strokeOpacity);
+				$canvas->currentLineTransparency = null;
+			}
+		}
+
+		$dashArray = null;
+		if ($style->strokeDasharray) {
+			$dashArray = preg_split('/\s*,\s*/', $style->strokeDasharray);
+		}
+
+
+		$phase=0;
+		if ($style->strokeDashoffset) {
+		   $phase = $style->strokeDashoffset;
+		}
+
+
+		$canvas->setLineStyle(
+			$style->strokeWidth,
+			$style->strokeLinecap,
+			$style->strokeLinejoin,
+			$dashArray,
+			$phase
+		);
+
+		$this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
+	}
+
+	public function setFont($family, $style, $weight)
+	{
+		$map = [
+			"serif"      => "times",
+			"sans-serif" => "helvetica",
+			"fantasy"    => "symbol",
+			"cursive"    => "times",
+			"monospace"  => "courier"
+		];
+
+		$styleMap = [
+			"courier" => [
+				""   => "Courier",
+				"b"  => "Courier-Bold",
+				"i"  => "Courier-Oblique",
+				"bi" => "Courier-BoldOblique",
+			],
+			"helvetica" => [
+				""   => "Helvetica",
+				"b"  => "Helvetica-Bold",
+				"i"  => "Helvetica-Oblique",
+				"bi" => "Helvetica-BoldOblique",
+			],
+			"symbol" => [
+				"" => "Symbol"
+			],
+			"times" => [
+				""   => "Times-Roman",
+				"b"  => "Times-Bold",
+				"i"  => "Times-Italic",
+				"bi" => "Times-BoldItalic",
+			],
+		];
+
+		$family_lc = strtolower($family);
+		if (isset($map[$family_lc])) {
+			$family = $map[$family_lc];
+		}
+
+		if (isset($styleMap[$family])) {
+			$key = "";
+
+			$weight = strtolower($weight);
+			if ($weight === "bold" || $weight === "bolder" || (is_numeric($weight) && $weight >= 600)) {
+				$key .= "b";
+			}
+
+			$style = strtolower($style);
+			if ($style === "italic" || $style === "oblique") {
+				$key .= "i";
+			}
+
+			if (isset($styleMap[$family][$key])) {
+				$family = $styleMap[$family][$key];
+			}
+		}
+
+		$this->canvas->selectFont("$family.afm");
+	}
 }

Spacing +46 added lines, -46 removed lines

@@ -26,22 +26,22 @@ 
 
     public function __construct(Document $doc, $canvas = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         $dimensions = $doc->getDimensions();
         $w = $dimensions["width"];
         $h = $dimensions["height"];
 
-        if (!$canvas) {
+        if ( ! $canvas) {
             $canvas = new \Svg\Surface\CPdf(array(0, 0, $w, $h));
             $refl = new \ReflectionClass($canvas);
-            $canvas->fontcache = realpath(dirname($refl->getFileName()) . "/../../fonts/")."/";
+            $canvas->fontcache = realpath(dirname($refl->getFileName())."/../../fonts/")."/";
         }
 
         // Flip PDF coordinate system so that the origin is in
         // the top left rather than the bottom left
         $canvas->transform(array(
-            1,  0,
+            1, 0,
             0, -1,
             0, $h
         ));
@@ -54,101 +54,101 @@ 
 
     function out()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         return $this->canvas->output();
     }
 
     public function save()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->save();
     }
 
     public function restore()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->restore();
     }
 
     public function scale($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         $this->transform($x, 0, 0, $y, 0, 0);
     }
 
     public function rotate($angle)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         $a = deg2rad($angle);
         $cos_a = cos($a);
         $sin_a = sin($a);
 
         $this->transform(
-            $cos_a,                         $sin_a,
-            -$sin_a,                         $cos_a,
+            $cos_a, $sin_a,
+            -$sin_a, $cos_a,
             0, 0
         );
     }
 
     public function translate($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         $this->transform(
-            1,  0,
-            0,  1,
+            1, 0,
+            0, 1,
             $x, $y
         );
     }
 
     public function transform($a, $b, $c, $d, $e, $f)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         $this->canvas->transform(array($a, $b, $c, $d, $e, $f));
     }
 
     public function beginPath()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         // TODO: Implement beginPath() method.
     }
 
     public function closePath()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->closePath();
     }
 
     public function fillStroke(bool $close = false)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->fillStroke($close);
     }
 
     public function clip()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->clip();
     }
 
     public function fillText($text, $x, $y, $maxWidth = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->addText($x, $y, $this->style->fontSize, $text);
     }
 
     public function strokeText($text, $x, $y, $maxWidth = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->addText($x, $y, $this->style->fontSize, $text);
     }
 
     public function drawImage($image, $sx, $sy, $sw = null, $sh = null, $dx = null, $dy = null, $dw = null, $dh = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         if (strpos($image, "data:") === 0) {
             $parts = explode(',', $image, 2);
@@ -197,8 +197,8 @@ 
 
             if (substr($data, 0, 2) === "BM") {
                 $meta = unpack('vtype/Vfilesize/Vreserved/Voffset/Vheadersize/Vwidth/Vheight', $data);
-                $width = (int)$meta['width'];
-                $height = (int)$meta['height'];
+                $width = (int) $meta['width'];
+                $height = (int) $meta['height'];
                 $type = IMAGETYPE_BMP;
             }
         }
@@ -230,19 +230,19 @@ 
 
     public function lineTo($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->lineTo($x, $y);
     }
 
     public function moveTo($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->moveTo($x, $y);
     }
 
     public function quadraticCurveTo($cpx, $cpy, $x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         // FIXME not accurate
         $this->canvas->quadTo($cpx, $cpy, $x, $y);
@@ -250,43 +250,43 @@ 
 
     public function bezierCurveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->curveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y);
     }
 
     public function arcTo($x1, $y1, $x2, $y2, $radius)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
     }
 
     public function arc($x, $y, $radius, $startAngle, $endAngle, $anticlockwise = false)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, $startAngle, $endAngle, false, false, false, true);
     }
 
     public function circle($x, $y, $radius)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, 0, 360, true, false, false, false);
     }
 
     public function ellipse($x, $y, $radiusX, $radiusY, $rotation, $startAngle, $endAngle, $anticlockwise)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->ellipse($x, $y, $radiusX, $radiusY, 0, 8, 0, 360, false, false, false, false);
     }
 
     public function fillRect($x, $y, $w, $h)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->rect($x, $y, $w, $h);
         $this->fill();
     }
 
     public function rect($x, $y, $w, $h, $rx = 0, $ry = 0)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         $canvas = $this->canvas;
 
@@ -311,7 +311,7 @@ 
         $this->arc($x + $w - $rx, $y + $rx, $rx, 270, 360);
 
         /* Start of the arc segment in the upper right corner */
-        $this->lineTo($x + $w, $y + $h - $rx );
+        $this->lineTo($x + $w, $y + $h - $rx);
 
         /* Arc segment in the upper right corner */
         $this->arc($x + $w - $rx, $y + $h - $rx, $rx, 0, 90);
@@ -323,7 +323,7 @@ 
         $this->arc($x + $rx, $y + $h - $rx, $rx, 90, 180);
 
         /* Start of the arc segment in the lower left corner */
-        $this->lineTo($x , $y + $rx);
+        $this->lineTo($x, $y + $rx);
 
         /* Arc segment in the lower left corner */
         $this->arc($x + $rx, $y + $rx, $rx, 180, 270);
@@ -331,32 +331,32 @@ 
 
     public function fill()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->fill();
     }
 
     public function strokeRect($x, $y, $w, $h)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->rect($x, $y, $w, $h);
         $this->stroke();
     }
 
     public function stroke(bool $close = false)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->stroke($close);
     }
 
     public function endPath()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $this->canvas->endPath();
     }
 
     public function measureText($text)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         $style = $this->getStyle();
         $this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
 
@@ -365,23 +365,23 @@ 
 
     public function getStyle()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
         return $this->style;
     }
 
     public function setStyle(Style $style)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) echo __FUNCTION__."\n";
 
         $this->style = $style;
         $canvas = $this->canvas;
 
         if (is_array($style->stroke) && $stroke = $style->stroke) {
-            $canvas->setStrokeColor(array((float)$stroke[0]/255, (float)$stroke[1]/255, (float)$stroke[2]/255), true);
+            $canvas->setStrokeColor(array((float) $stroke[0] / 255, (float) $stroke[1] / 255, (float) $stroke[2] / 255), true);
         }
 
         if (is_array($style->fill) && $fill = $style->fill) {
-            $canvas->setColor(array((float)$fill[0]/255, (float)$fill[1]/255, (float)$fill[2]/255), true);
+            $canvas->setColor(array((float) $fill[0] / 255, (float) $fill[1] / 255, (float) $fill[2] / 255), true);
         }
 
         if ($fillRule = strtolower($style->fillRule)) {
@@ -416,7 +416,7 @@ 
         }
 
 
-        $phase=0;
+        $phase = 0;
         if ($style->strokeDashoffset) {
            $phase = $style->strokeDashoffset;
         }

Braces +98 added lines, -36 removed lines

@@ -26,7 +26,9 @@ 
 
     public function __construct(Document $doc, $canvas = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         $dimensions = $doc->getDimensions();
         $w = $dimensions["width"];
@@ -54,32 +56,42 @@ 
 
     function out()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         return $this->canvas->output();
     }
 
     public function save()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->save();
     }
 
     public function restore()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->restore();
     }
 
     public function scale($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         $this->transform($x, 0, 0, $y, 0, 0);
     }
 
     public function rotate($angle)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         $a = deg2rad($angle);
         $cos_a = cos($a);
@@ -94,7 +106,9 @@ 
 
     public function translate($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         $this->transform(
             1,  0,
@@ -105,50 +119,66 @@ 
 
     public function transform($a, $b, $c, $d, $e, $f)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         $this->canvas->transform(array($a, $b, $c, $d, $e, $f));
     }
 
     public function beginPath()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         // TODO: Implement beginPath() method.
     }
 
     public function closePath()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->closePath();
     }
 
     public function fillStroke(bool $close = false)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->fillStroke($close);
     }
 
     public function clip()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->clip();
     }
 
     public function fillText($text, $x, $y, $maxWidth = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->addText($x, $y, $this->style->fontSize, $text);
     }
 
     public function strokeText($text, $x, $y, $maxWidth = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->addText($x, $y, $this->style->fontSize, $text);
     }
 
     public function drawImage($image, $sx, $sy, $sw = null, $sh = null, $dx = null, $dy = null, $dw = null, $dh = null)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         if (strpos($image, "data:") === 0) {
             $parts = explode(',', $image, 2);
@@ -168,8 +198,7 @@ 
             if ($base64) {
                 $data = base64_decode($data);
             }
-        }
-        else {
+        } else {
             $data = file_get_contents($image);
         }
 
@@ -230,19 +259,25 @@ 
 
     public function lineTo($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->lineTo($x, $y);
     }
 
     public function moveTo($x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->moveTo($x, $y);
     }
 
     public function quadraticCurveTo($cpx, $cpy, $x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         // FIXME not accurate
         $this->canvas->quadTo($cpx, $cpy, $x, $y);
@@ -250,43 +285,57 @@ 
 
     public function bezierCurveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->curveTo($cp1x, $cp1y, $cp2x, $cp2y, $x, $y);
     }
 
     public function arcTo($x1, $y1, $x2, $y2, $radius)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
     }
 
     public function arc($x, $y, $radius, $startAngle, $endAngle, $anticlockwise = false)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, $startAngle, $endAngle, false, false, false, true);
     }
 
     public function circle($x, $y, $radius)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->ellipse($x, $y, $radius, $radius, 0, 8, 0, 360, true, false, false, false);
     }
 
     public function ellipse($x, $y, $radiusX, $radiusY, $rotation, $startAngle, $endAngle, $anticlockwise)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->ellipse($x, $y, $radiusX, $radiusY, 0, 8, 0, 360, false, false, false, false);
     }
 
     public function fillRect($x, $y, $w, $h)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->rect($x, $y, $w, $h);
         $this->fill();
     }
 
     public function rect($x, $y, $w, $h, $rx = 0, $ry = 0)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         $canvas = $this->canvas;
 
@@ -331,32 +380,42 @@ 
 
     public function fill()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->fill();
     }
 
     public function strokeRect($x, $y, $w, $h)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->rect($x, $y, $w, $h);
         $this->stroke();
     }
 
     public function stroke(bool $close = false)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->stroke($close);
     }
 
     public function endPath()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $this->canvas->endPath();
     }
 
     public function measureText($text)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         $style = $this->getStyle();
         $this->setFont($style->fontFamily, $style->fontStyle, $style->fontWeight);
 
@@ -365,13 +424,17 @@ 
 
     public function getStyle()
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
         return $this->style;
     }
 
     public function setStyle(Style $style)
     {
-        if (self::DEBUG) echo __FUNCTION__ . "\n";
+        if (self::DEBUG) {
+        	echo __FUNCTION__ . "\n";
+        }
 
         $this->style = $style;
         $canvas = $this->canvas;
@@ -395,8 +458,7 @@ 
 
             $canvas->setFillTransparency("Normal", $opacity);
             $canvas->currentFillTransparency = null;
-        }
-        else {
+        } else {
             $fillOpacity = $style->fillOpacity;
             if ($fillOpacity !== null && $fillOpacity < 1.0) {
                 $canvas->setFillTransparency("Normal", $fillOpacity);

vendor/phenx/php-svg-lib/src/Svg/Style.php

Indentation +526 added lines, -526 removed lines

@@ -12,530 +12,530 @@
 
 class Style
 {
-    const TYPE_COLOR = 1;
-    const TYPE_LENGTH = 2;
-    const TYPE_NAME = 3;
-    const TYPE_ANGLE = 4;
-    const TYPE_NUMBER = 5;
-
-    private $_parentStyle;
-
-    public $color;
-    public $opacity;
-    public $display;
-
-    public $fill;
-    public $fillOpacity;
-    public $fillRule;
-
-    public $stroke;
-    public $strokeOpacity;
-    public $strokeLinecap;
-    public $strokeLinejoin;
-    public $strokeMiterlimit;
-    public $strokeWidth;
-    public $strokeDasharray;
-    public $strokeDashoffset;
-
-    public $fontFamily = 'serif';
-    public $fontSize = 12;
-    public $fontWeight = 'normal';
-    public $fontStyle = 'normal';
-    public $textAnchor = 'start';
-
-    protected function getStyleMap()
-    {
-        return array(
-            'color'             => array('color', self::TYPE_COLOR),
-            'opacity'           => array('opacity', self::TYPE_NUMBER),
-            'display'           => array('display', self::TYPE_NAME),
-
-            'fill'              => array('fill', self::TYPE_COLOR),
-            'fill-opacity'      => array('fillOpacity', self::TYPE_NUMBER),
-            'fill-rule'         => array('fillRule', self::TYPE_NAME),
-
-            'stroke'            => array('stroke', self::TYPE_COLOR),
-            'stroke-dasharray'  => array('strokeDasharray', self::TYPE_NAME),
-            'stroke-dashoffset' => array('strokeDashoffset', self::TYPE_NUMBER),
-            'stroke-linecap'    => array('strokeLinecap', self::TYPE_NAME),
-            'stroke-linejoin'   => array('strokeLinejoin', self::TYPE_NAME),
-            'stroke-miterlimit' => array('strokeMiterlimit', self::TYPE_NUMBER),
-            'stroke-opacity'    => array('strokeOpacity', self::TYPE_NUMBER),
-            'stroke-width'      => array('strokeWidth', self::TYPE_NUMBER),
-
-            'font-family'       => array('fontFamily', self::TYPE_NAME),
-            'font-size'         => array('fontSize', self::TYPE_NUMBER),
-            'font-weight'       => array('fontWeight', self::TYPE_NAME),
-            'font-style'        => array('fontStyle', self::TYPE_NAME),
-            'text-anchor'       => array('textAnchor', self::TYPE_NAME),
-        );
-    }
-
-    /**
-     * @param $attributes
-     *
-     * @return Style
-     */
-    public function fromAttributes($attributes)
-    {
-        $this->fillStyles($attributes);
-
-        if (isset($attributes["style"])) {
-            $styles = self::parseCssStyle($attributes["style"]);
-            $this->fillStyles($styles);
-        }
-    }
-
-    public function inherit(AbstractTag $tag) {
-        $group = $tag->getParentGroup();
-        if ($group) {
-            $parent_style = $group->getStyle();
-            $this->_parentStyle = $parent_style;
-            foreach ($parent_style as $_key => $_value) {
-                if ($_value !== null) {
-                    $this->$_key = $_value;
-                }
-            }
-        }
-    }
-
-    public function fromStyleSheets(AbstractTag $tag, $attributes) {
-        $class = isset($attributes["class"]) ? preg_split('/\s+/', trim($attributes["class"])) : null;
-
-        $stylesheets = $tag->getDocument()->getStyleSheets();
-
-        $styles = array();
-
-        foreach ($stylesheets as $_sc) {
-
-            /** @var \Sabberworm\CSS\RuleSet\DeclarationBlock $_decl */
-            foreach ($_sc->getAllDeclarationBlocks() as $_decl) {
-
-                /** @var \Sabberworm\CSS\Property\Selector $_selector */
-                foreach ($_decl->getSelectors() as $_selector) {
-                    $_selector = $_selector->getSelector();
-
-                    // Match class name
-                    if ($class !== null) {
-                        foreach ($class as $_class) {
-                            if ($_selector === ".$_class") {
-                                /** @var \Sabberworm\CSS\Rule\Rule $_rule */
-                                foreach ($_decl->getRules() as $_rule) {
-                                    $styles[$_rule->getRule()] = $_rule->getValue() . "";
-                                }
-
-                                break 2;
-                            }
-                        }
-                    }
-
-                    // Match tag name
-                    if ($_selector === $tag->tagName) {
-                        /** @var \Sabberworm\CSS\Rule\Rule $_rule */
-                        foreach ($_decl->getRules() as $_rule) {
-                            $styles[$_rule->getRule()] = $_rule->getValue() . "";
-                        }
-
-                        break;
-                    }
-                }
-            }
-        }
-
-        $this->fillStyles($styles);
-    }
-
-    protected function fillStyles($styles)
-    {
-        $style_map = $this->getStyleMap();
-        foreach ($style_map as $from => $spec) {
-            if (isset($styles[$from])) {
-                list($to, $type) = $spec;
-                $value = null;
-                switch ($type) {
-                    case self::TYPE_COLOR:
-                        $value = self::parseColor($styles[$from]);
-                        if ($value === "currentcolor") {
-                            if ($type === "color") {
-                                $value = $this->_parentStyle->color;
-                            } else {
-                                $value = $this->color;
-                            }
-                        }
-                        if ($value !== null && $value[3] !== 1 && array_key_exists("{$from}-opacity", $style_map) === true) {
-                            $styles["{$from}-opacity"] = $value[3];
-                        }
-                        break;
-
-                    case self::TYPE_NUMBER:
-                        $value = ($styles[$from] === null) ? null : (float)$styles[$from];
-                        break;
-
-                    default:
-                        $value = $styles[$from];
-                }
-
-                if ($value !== null) {
-                    $this->$to = $value;
-                }
-            }
-        }
-    }
-
-    static function parseColor($color)
-    {
-        $color = strtolower(trim($color));
-
-        $parts = preg_split('/[^,]\s+/', $color, 2);
-
-        if (count($parts) == 2) {
-            $color = $parts[1];
-        } else {
-            $color = $parts[0];
-        }
-
-        if ($color === "none") {
-            return "none";
-        }
-
-        if ($color === "currentcolor") {
-            return "currentcolor";
-        }
-
-        // SVG color name
-        if (isset(self::$colorNames[$color])) {
-            return self::parseHexColor(self::$colorNames[$color]);
-        }
-
-        // Hex color
-        if ($color[0] === "#") {
-            return self::parseHexColor($color);
-        }
-
-        // RGB color
-        if (strpos($color, "rgb") !== false) {
-            return self::getQuad($color);
-        }
-
-        // RGB color
-        if (strpos($color, "hsl") !== false) {
-            $quad = self::getQuad($color, true);
-
-            if ($quad == null) {
-                return null;
-            }
-
-            list($h, $s, $l, $a) = $quad;
-
-            $r = $l;
-            $g = $l;
-            $b = $l;
-            $v = ($l <= 0.5) ? ($l * (1.0 + $s)) : ($l + $s - $l * $s);
-            if ($v > 0) {
-                $m = $l + $l - $v;
-                $sv = ($v - $m) / $v;
-                $h *= 6.0;
-                $sextant = floor($h);
-                $fract = $h - $sextant;
-                $vsf = $v * $sv * $fract;
-                $mid1 = $m + $vsf;
-                $mid2 = $v - $vsf;
-
-                switch ($sextant) {
-                    case 0:
-                        $r = $v;
-                        $g = $mid1;
-                        $b = $m;
-                        break;
-                    case 1:
-                        $r = $mid2;
-                        $g = $v;
-                        $b = $m;
-                        break;
-                    case 2:
-                        $r = $m;
-                        $g = $v;
-                        $b = $mid1;
-                        break;
-                    case 3:
-                        $r = $m;
-                        $g = $mid2;
-                        $b = $v;
-                        break;
-                    case 4:
-                        $r = $mid1;
-                        $g = $m;
-                        $b = $v;
-                        break;
-                    case 5:
-                        $r = $v;
-                        $g = $m;
-                        $b = $mid2;
-                        break;
-                }
-            }
-            $a = $a * 255;
-
-            return array(
-                $r * 255.0,
-                $g * 255.0,
-                $b * 255.0,
-                $a
-            );
-        }
-
-        // Gradient
-        if (strpos($color, "url(#") !== false) {
-            $i = strpos($color, "(");
-            $j = strpos($color, ")");
-
-            // Bad url format
-            if ($i === false || $j === false) {
-                return null;
-            }
-
-            return trim(substr($color, $i + 1, $j - $i - 1));
-        }
-
-        return null;
-    }
-
-    static function getQuad($color, $percent = false) {
-        $i = strpos($color, "(");
-        $j = strpos($color, ")");
-
-        // Bad color value
-        if ($i === false || $j === false) {
-            return null;
-        }
-
-        $quad = preg_split("/\\s*[,\\/]\\s*/", trim(substr($color, $i + 1, $j - $i - 1)));
-        if (!isset($quad[3])) {
-            $quad[3] = 1;
-        }
-
-        if (count($quad) != 3 && count($quad) != 4) {
-            return null;
-        }
-
-        foreach (array_keys($quad) as $c) {
-            $quad[$c] = trim($quad[$c]);
-
-            if ($percent) {
-                if ($quad[$c][strlen($quad[$c]) - 1] === "%") {
-                    $quad[$c] = floatval($quad[$c]) / 100;
-                } else {
-                    $quad[$c] = $quad[$c] / 255;
-                }
-            } else {
-                if ($quad[$c][strlen($quad[$c]) - 1] === "%") {
-                    $quad[$c] = round(floatval($quad[$c]) * 2.55);
-                }
-            }
-        }
-
-        return $quad;
-    }
-
-    static function parseHexColor($hex)
-    {
-        $c = array(0, 0, 0, 1);
-
-        // #FFFFFF
-        if (isset($hex[6])) {
-            $c[0] = hexdec(substr($hex, 1, 2));
-            $c[1] = hexdec(substr($hex, 3, 2));
-            $c[2] = hexdec(substr($hex, 5, 2));
-
-            if (isset($hex[7])) {
-                $alpha = substr($hex, 7, 2);
-                if (ctype_xdigit($alpha)) {
-                    $c[3] = round(hexdec($alpha)/255, 2);
-                }
-            }
-        } else {
-            $c[0] = hexdec($hex[1] . $hex[1]);
-            $c[1] = hexdec($hex[2] . $hex[2]);
-            $c[2] = hexdec($hex[3] . $hex[3]);
-
-            if (isset($hex[4])) {
-                if (ctype_xdigit($hex[4])) {
-                    $c[3] = round(hexdec($hex[4] . $hex[4])/255, 2);
-                }
-            }
-        }
-
-        return $c;
-    }
-
-    /**
-     * Simple CSS parser
-     *
-     * @param $style
-     *
-     * @return array
-     */
-    static function parseCssStyle($style)
-    {
-        $matches = array();
-        preg_match_all("/([a-z-]+)\\s*:\\s*([^;$]+)/si", $style, $matches, PREG_SET_ORDER);
-
-        $styles = array();
-        foreach ($matches as $match) {
-            $styles[$match[1]] = $match[2];
-        }
-
-        return $styles;
-    }
-
-    static $colorNames = array(
-        'antiquewhite'         => '#FAEBD7',
-        'aqua'                 => '#00FFFF',
-        'aquamarine'           => '#7FFFD4',
-        'beige'                => '#F5F5DC',
-        'black'                => '#000000',
-        'blue'                 => '#0000FF',
-        'brown'                => '#A52A2A',
-        'cadetblue'            => '#5F9EA0',
-        'chocolate'            => '#D2691E',
-        'cornflowerblue'       => '#6495ED',
-        'crimson'              => '#DC143C',
-        'darkblue'             => '#00008B',
-        'darkgoldenrod'        => '#B8860B',
-        'darkgreen'            => '#006400',
-        'darkmagenta'          => '#8B008B',
-        'darkorange'           => '#FF8C00',
-        'darkred'              => '#8B0000',
-        'darkseagreen'         => '#8FBC8F',
-        'darkslategray'        => '#2F4F4F',
-        'darkviolet'           => '#9400D3',
-        'deepskyblue'          => '#00BFFF',
-        'dodgerblue'           => '#1E90FF',
-        'firebrick'            => '#B22222',
-        'forestgreen'          => '#228B22',
-        'fuchsia'              => '#FF00FF',
-        'gainsboro'            => '#DCDCDC',
-        'gold'                 => '#FFD700',
-        'gray'                 => '#808080',
-        'green'                => '#008000',
-        'greenyellow'          => '#ADFF2F',
-        'hotpink'              => '#FF69B4',
-        'indigo'               => '#4B0082',
-        'khaki'                => '#F0E68C',
-        'lavenderblush'        => '#FFF0F5',
-        'lemonchiffon'         => '#FFFACD',
-        'lightcoral'           => '#F08080',
-        'lightgoldenrodyellow' => '#FAFAD2',
-        'lightgreen'           => '#90EE90',
-        'lightsalmon'          => '#FFA07A',
-        'lightskyblue'         => '#87CEFA',
-        'lightslategray'       => '#778899',
-        'lightyellow'          => '#FFFFE0',
-        'lime'                 => '#00FF00',
-        'limegreen'            => '#32CD32',
-        'magenta'              => '#FF00FF',
-        'maroon'               => '#800000',
-        'mediumaquamarine'     => '#66CDAA',
-        'mediumorchid'         => '#BA55D3',
-        'mediumseagreen'       => '#3CB371',
-        'mediumspringgreen'    => '#00FA9A',
-        'mediumvioletred'      => '#C71585',
-        'midnightblue'         => '#191970',
-        'mintcream'            => '#F5FFFA',
-        'moccasin'             => '#FFE4B5',
-        'navy'                 => '#000080',
-        'olive'                => '#808000',
-        'orange'               => '#FFA500',
-        'orchid'               => '#DA70D6',
-        'palegreen'            => '#98FB98',
-        'palevioletred'        => '#D87093',
-        'peachpuff'            => '#FFDAB9',
-        'pink'                 => '#FFC0CB',
-        'powderblue'           => '#B0E0E6',
-        'purple'               => '#800080',
-        'red'                  => '#FF0000',
-        'royalblue'            => '#4169E1',
-        'salmon'               => '#FA8072',
-        'seagreen'             => '#2E8B57',
-        'sienna'               => '#A0522D',
-        'silver'               => '#C0C0C0',
-        'skyblue'              => '#87CEEB',
-        'slategray'            => '#708090',
-        'springgreen'          => '#00FF7F',
-        'steelblue'            => '#4682B4',
-        'tan'                  => '#D2B48C',
-        'teal'                 => '#008080',
-        'thistle'              => '#D8BFD8',
-        'turquoise'            => '#40E0D0',
-        'violetred'            => '#D02090',
-        'white'                => '#FFFFFF',
-        'yellow'               => '#FFFF00',
-        'aliceblue'            => '#f0f8ff',
-        'azure'                => '#f0ffff',
-        'bisque'               => '#ffe4c4',
-        'blanchedalmond'       => '#ffebcd',
-        'blueviolet'           => '#8a2be2',
-        'burlywood'            => '#deb887',
-        'chartreuse'           => '#7fff00',
-        'coral'                => '#ff7f50',
-        'cornsilk'             => '#fff8dc',
-        'cyan'                 => '#00ffff',
-        'darkcyan'             => '#008b8b',
-        'darkgray'             => '#a9a9a9',
-        'darkgrey'             => '#a9a9a9',
-        'darkkhaki'            => '#bdb76b',
-        'darkolivegreen'       => '#556b2f',
-        'darkorchid'           => '#9932cc',
-        'darksalmon'           => '#e9967a',
-        'darkslateblue'        => '#483d8b',
-        'darkslategrey'        => '#2f4f4f',
-        'darkturquoise'        => '#00ced1',
-        'deeppink'             => '#ff1493',
-        'dimgray'              => '#696969',
-        'dimgrey'              => '#696969',
-        'floralwhite'          => '#fffaf0',
-        'ghostwhite'           => '#f8f8ff',
-        'goldenrod'            => '#daa520',
-        'grey'                 => '#808080',
-        'honeydew'             => '#f0fff0',
-        'indianred'            => '#cd5c5c',
-        'ivory'                => '#fffff0',
-        'lavender'             => '#e6e6fa',
-        'lawngreen'            => '#7cfc00',
-        'lightblue'            => '#add8e6',
-        'lightcyan'            => '#e0ffff',
-        'lightgray'            => '#d3d3d3',
-        'lightgrey'            => '#d3d3d3',
-        'lightpink'            => '#ffb6c1',
-        'lightseagreen'        => '#20b2aa',
-        'lightslategrey'       => '#778899',
-        'lightsteelblue'       => '#b0c4de',
-        'linen'                => '#faf0e6',
-        'mediumblue'           => '#0000cd',
-        'mediumpurple'         => '#9370db',
-        'mediumslateblue'      => '#7b68ee',
-        'mediumturquoise'      => '#48d1cc',
-        'mistyrose'            => '#ffe4e1',
-        'navajowhite'          => '#ffdead',
-        'oldlace'              => '#fdf5e6',
-        'olivedrab'            => '#6b8e23',
-        'orangered'            => '#ff4500',
-        'palegoldenrod'        => '#eee8aa',
-        'paleturquoise'        => '#afeeee',
-        'papayawhip'           => '#ffefd5',
-        'peru'                 => '#cd853f',
-        'plum'                 => '#dda0dd',
-        'rosybrown'            => '#bc8f8f',
-        'saddlebrown'          => '#8b4513',
-        'sandybrown'           => '#f4a460',
-        'seashell'             => '#fff5ee',
-        'slateblue'            => '#6a5acd',
-        'slategrey'            => '#708090',
-        'snow'                 => '#fffafa',
-        'tomato'               => '#ff6347',
-        'violet'               => '#ee82ee',
-        'wheat'                => '#f5deb3',
-        'whitesmoke'           => '#f5f5f5',
-        'yellowgreen'          => '#9acd32',
-    );
+	const TYPE_COLOR = 1;
+	const TYPE_LENGTH = 2;
+	const TYPE_NAME = 3;
+	const TYPE_ANGLE = 4;
+	const TYPE_NUMBER = 5;
+
+	private $_parentStyle;
+
+	public $color;
+	public $opacity;
+	public $display;
+
+	public $fill;
+	public $fillOpacity;
+	public $fillRule;
+
+	public $stroke;
+	public $strokeOpacity;
+	public $strokeLinecap;
+	public $strokeLinejoin;
+	public $strokeMiterlimit;
+	public $strokeWidth;
+	public $strokeDasharray;
+	public $strokeDashoffset;
+
+	public $fontFamily = 'serif';
+	public $fontSize = 12;
+	public $fontWeight = 'normal';
+	public $fontStyle = 'normal';
+	public $textAnchor = 'start';
+
+	protected function getStyleMap()
+	{
+		return array(
+			'color'             => array('color', self::TYPE_COLOR),
+			'opacity'           => array('opacity', self::TYPE_NUMBER),
+			'display'           => array('display', self::TYPE_NAME),
+
+			'fill'              => array('fill', self::TYPE_COLOR),
+			'fill-opacity'      => array('fillOpacity', self::TYPE_NUMBER),
+			'fill-rule'         => array('fillRule', self::TYPE_NAME),
+
+			'stroke'            => array('stroke', self::TYPE_COLOR),
+			'stroke-dasharray'  => array('strokeDasharray', self::TYPE_NAME),
+			'stroke-dashoffset' => array('strokeDashoffset', self::TYPE_NUMBER),
+			'stroke-linecap'    => array('strokeLinecap', self::TYPE_NAME),
+			'stroke-linejoin'   => array('strokeLinejoin', self::TYPE_NAME),
+			'stroke-miterlimit' => array('strokeMiterlimit', self::TYPE_NUMBER),
+			'stroke-opacity'    => array('strokeOpacity', self::TYPE_NUMBER),
+			'stroke-width'      => array('strokeWidth', self::TYPE_NUMBER),
+
+			'font-family'       => array('fontFamily', self::TYPE_NAME),
+			'font-size'         => array('fontSize', self::TYPE_NUMBER),
+			'font-weight'       => array('fontWeight', self::TYPE_NAME),
+			'font-style'        => array('fontStyle', self::TYPE_NAME),
+			'text-anchor'       => array('textAnchor', self::TYPE_NAME),
+		);
+	}
+
+	/**
+	 * @param $attributes
+	 *
+	 * @return Style
+	 */
+	public function fromAttributes($attributes)
+	{
+		$this->fillStyles($attributes);
+
+		if (isset($attributes["style"])) {
+			$styles = self::parseCssStyle($attributes["style"]);
+			$this->fillStyles($styles);
+		}
+	}
+
+	public function inherit(AbstractTag $tag) {
+		$group = $tag->getParentGroup();
+		if ($group) {
+			$parent_style = $group->getStyle();
+			$this->_parentStyle = $parent_style;
+			foreach ($parent_style as $_key => $_value) {
+				if ($_value !== null) {
+					$this->$_key = $_value;
+				}
+			}
+		}
+	}
+
+	public function fromStyleSheets(AbstractTag $tag, $attributes) {
+		$class = isset($attributes["class"]) ? preg_split('/\s+/', trim($attributes["class"])) : null;
+
+		$stylesheets = $tag->getDocument()->getStyleSheets();
+
+		$styles = array();
+
+		foreach ($stylesheets as $_sc) {
+
+			/** @var \Sabberworm\CSS\RuleSet\DeclarationBlock $_decl */
+			foreach ($_sc->getAllDeclarationBlocks() as $_decl) {
+
+				/** @var \Sabberworm\CSS\Property\Selector $_selector */
+				foreach ($_decl->getSelectors() as $_selector) {
+					$_selector = $_selector->getSelector();
+
+					// Match class name
+					if ($class !== null) {
+						foreach ($class as $_class) {
+							if ($_selector === ".$_class") {
+								/** @var \Sabberworm\CSS\Rule\Rule $_rule */
+								foreach ($_decl->getRules() as $_rule) {
+									$styles[$_rule->getRule()] = $_rule->getValue() . "";
+								}
+
+								break 2;
+							}
+						}
+					}
+
+					// Match tag name
+					if ($_selector === $tag->tagName) {
+						/** @var \Sabberworm\CSS\Rule\Rule $_rule */
+						foreach ($_decl->getRules() as $_rule) {
+							$styles[$_rule->getRule()] = $_rule->getValue() . "";
+						}
+
+						break;
+					}
+				}
+			}
+		}
+
+		$this->fillStyles($styles);
+	}
+
+	protected function fillStyles($styles)
+	{
+		$style_map = $this->getStyleMap();
+		foreach ($style_map as $from => $spec) {
+			if (isset($styles[$from])) {
+				list($to, $type) = $spec;
+				$value = null;
+				switch ($type) {
+					case self::TYPE_COLOR:
+						$value = self::parseColor($styles[$from]);
+						if ($value === "currentcolor") {
+							if ($type === "color") {
+								$value = $this->_parentStyle->color;
+							} else {
+								$value = $this->color;
+							}
+						}
+						if ($value !== null && $value[3] !== 1 && array_key_exists("{$from}-opacity", $style_map) === true) {
+							$styles["{$from}-opacity"] = $value[3];
+						}
+						break;
+
+					case self::TYPE_NUMBER:
+						$value = ($styles[$from] === null) ? null : (float)$styles[$from];
+						break;
+
+					default:
+						$value = $styles[$from];
+				}
+
+				if ($value !== null) {
+					$this->$to = $value;
+				}
+			}
+		}
+	}
+
+	static function parseColor($color)
+	{
+		$color = strtolower(trim($color));
+
+		$parts = preg_split('/[^,]\s+/', $color, 2);
+
+		if (count($parts) == 2) {
+			$color = $parts[1];
+		} else {
+			$color = $parts[0];
+		}
+
+		if ($color === "none") {
+			return "none";
+		}
+
+		if ($color === "currentcolor") {
+			return "currentcolor";
+		}
+
+		// SVG color name
+		if (isset(self::$colorNames[$color])) {
+			return self::parseHexColor(self::$colorNames[$color]);
+		}
+
+		// Hex color
+		if ($color[0] === "#") {
+			return self::parseHexColor($color);
+		}
+
+		// RGB color
+		if (strpos($color, "rgb") !== false) {
+			return self::getQuad($color);
+		}
+
+		// RGB color
+		if (strpos($color, "hsl") !== false) {
+			$quad = self::getQuad($color, true);
+
+			if ($quad == null) {
+				return null;
+			}
+
+			list($h, $s, $l, $a) = $quad;
+
+			$r = $l;
+			$g = $l;
+			$b = $l;
+			$v = ($l <= 0.5) ? ($l * (1.0 + $s)) : ($l + $s - $l * $s);
+			if ($v > 0) {
+				$m = $l + $l - $v;
+				$sv = ($v - $m) / $v;
+				$h *= 6.0;
+				$sextant = floor($h);
+				$fract = $h - $sextant;
+				$vsf = $v * $sv * $fract;
+				$mid1 = $m + $vsf;
+				$mid2 = $v - $vsf;
+
+				switch ($sextant) {
+					case 0:
+						$r = $v;
+						$g = $mid1;
+						$b = $m;
+						break;
+					case 1:
+						$r = $mid2;
+						$g = $v;
+						$b = $m;
+						break;
+					case 2:
+						$r = $m;
+						$g = $v;
+						$b = $mid1;
+						break;
+					case 3:
+						$r = $m;
+						$g = $mid2;
+						$b = $v;
+						break;
+					case 4:
+						$r = $mid1;
+						$g = $m;
+						$b = $v;
+						break;
+					case 5:
+						$r = $v;
+						$g = $m;
+						$b = $mid2;
+						break;
+				}
+			}
+			$a = $a * 255;
+
+			return array(
+				$r * 255.0,
+				$g * 255.0,
+				$b * 255.0,
+				$a
+			);
+		}
+
+		// Gradient
+		if (strpos($color, "url(#") !== false) {
+			$i = strpos($color, "(");
+			$j = strpos($color, ")");
+
+			// Bad url format
+			if ($i === false || $j === false) {
+				return null;
+			}
+
+			return trim(substr($color, $i + 1, $j - $i - 1));
+		}
+
+		return null;
+	}
+
+	static function getQuad($color, $percent = false) {
+		$i = strpos($color, "(");
+		$j = strpos($color, ")");
+
+		// Bad color value
+		if ($i === false || $j === false) {
+			return null;
+		}
+
+		$quad = preg_split("/\\s*[,\\/]\\s*/", trim(substr($color, $i + 1, $j - $i - 1)));
+		if (!isset($quad[3])) {
+			$quad[3] = 1;
+		}
+
+		if (count($quad) != 3 && count($quad) != 4) {
+			return null;
+		}
+
+		foreach (array_keys($quad) as $c) {
+			$quad[$c] = trim($quad[$c]);
+
+			if ($percent) {
+				if ($quad[$c][strlen($quad[$c]) - 1] === "%") {
+					$quad[$c] = floatval($quad[$c]) / 100;
+				} else {
+					$quad[$c] = $quad[$c] / 255;
+				}
+			} else {
+				if ($quad[$c][strlen($quad[$c]) - 1] === "%") {
+					$quad[$c] = round(floatval($quad[$c]) * 2.55);
+				}
+			}
+		}
+
+		return $quad;
+	}
+
+	static function parseHexColor($hex)
+	{
+		$c = array(0, 0, 0, 1);
+
+		// #FFFFFF
+		if (isset($hex[6])) {
+			$c[0] = hexdec(substr($hex, 1, 2));
+			$c[1] = hexdec(substr($hex, 3, 2));
+			$c[2] = hexdec(substr($hex, 5, 2));
+
+			if (isset($hex[7])) {
+				$alpha = substr($hex, 7, 2);
+				if (ctype_xdigit($alpha)) {
+					$c[3] = round(hexdec($alpha)/255, 2);
+				}
+			}
+		} else {
+			$c[0] = hexdec($hex[1] . $hex[1]);
+			$c[1] = hexdec($hex[2] . $hex[2]);
+			$c[2] = hexdec($hex[3] . $hex[3]);
+
+			if (isset($hex[4])) {
+				if (ctype_xdigit($hex[4])) {
+					$c[3] = round(hexdec($hex[4] . $hex[4])/255, 2);
+				}
+			}
+		}
+
+		return $c;
+	}
+
+	/**
+	 * Simple CSS parser
+	 *
+	 * @param $style
+	 *
+	 * @return array
+	 */
+	static function parseCssStyle($style)
+	{
+		$matches = array();
+		preg_match_all("/([a-z-]+)\\s*:\\s*([^;$]+)/si", $style, $matches, PREG_SET_ORDER);
+
+		$styles = array();
+		foreach ($matches as $match) {
+			$styles[$match[1]] = $match[2];
+		}
+
+		return $styles;
+	}
+
+	static $colorNames = array(
+		'antiquewhite'         => '#FAEBD7',
+		'aqua'                 => '#00FFFF',
+		'aquamarine'           => '#7FFFD4',
+		'beige'                => '#F5F5DC',
+		'black'                => '#000000',
+		'blue'                 => '#0000FF',
+		'brown'                => '#A52A2A',
+		'cadetblue'            => '#5F9EA0',
+		'chocolate'            => '#D2691E',
+		'cornflowerblue'       => '#6495ED',
+		'crimson'              => '#DC143C',
+		'darkblue'             => '#00008B',
+		'darkgoldenrod'        => '#B8860B',
+		'darkgreen'            => '#006400',
+		'darkmagenta'          => '#8B008B',
+		'darkorange'           => '#FF8C00',
+		'darkred'              => '#8B0000',
+		'darkseagreen'         => '#8FBC8F',
+		'darkslategray'        => '#2F4F4F',
+		'darkviolet'           => '#9400D3',
+		'deepskyblue'          => '#00BFFF',
+		'dodgerblue'           => '#1E90FF',
+		'firebrick'            => '#B22222',
+		'forestgreen'          => '#228B22',
+		'fuchsia'              => '#FF00FF',
+		'gainsboro'            => '#DCDCDC',
+		'gold'                 => '#FFD700',
+		'gray'                 => '#808080',
+		'green'                => '#008000',
+		'greenyellow'          => '#ADFF2F',
+		'hotpink'              => '#FF69B4',
+		'indigo'               => '#4B0082',
+		'khaki'                => '#F0E68C',
+		'lavenderblush'        => '#FFF0F5',
+		'lemonchiffon'         => '#FFFACD',
+		'lightcoral'           => '#F08080',
+		'lightgoldenrodyellow' => '#FAFAD2',
+		'lightgreen'           => '#90EE90',
+		'lightsalmon'          => '#FFA07A',
+		'lightskyblue'         => '#87CEFA',
+		'lightslategray'       => '#778899',
+		'lightyellow'          => '#FFFFE0',
+		'lime'                 => '#00FF00',
+		'limegreen'            => '#32CD32',
+		'magenta'              => '#FF00FF',
+		'maroon'               => '#800000',
+		'mediumaquamarine'     => '#66CDAA',
+		'mediumorchid'         => '#BA55D3',
+		'mediumseagreen'       => '#3CB371',
+		'mediumspringgreen'    => '#00FA9A',
+		'mediumvioletred'      => '#C71585',
+		'midnightblue'         => '#191970',
+		'mintcream'            => '#F5FFFA',
+		'moccasin'             => '#FFE4B5',
+		'navy'                 => '#000080',
+		'olive'                => '#808000',
+		'orange'               => '#FFA500',
+		'orchid'               => '#DA70D6',
+		'palegreen'            => '#98FB98',
+		'palevioletred'        => '#D87093',
+		'peachpuff'            => '#FFDAB9',
+		'pink'                 => '#FFC0CB',
+		'powderblue'           => '#B0E0E6',
+		'purple'               => '#800080',
+		'red'                  => '#FF0000',
+		'royalblue'            => '#4169E1',
+		'salmon'               => '#FA8072',
+		'seagreen'             => '#2E8B57',
+		'sienna'               => '#A0522D',
+		'silver'               => '#C0C0C0',
+		'skyblue'              => '#87CEEB',
+		'slategray'            => '#708090',
+		'springgreen'          => '#00FF7F',
+		'steelblue'            => '#4682B4',
+		'tan'                  => '#D2B48C',
+		'teal'                 => '#008080',
+		'thistle'              => '#D8BFD8',
+		'turquoise'            => '#40E0D0',
+		'violetred'            => '#D02090',
+		'white'                => '#FFFFFF',
+		'yellow'               => '#FFFF00',
+		'aliceblue'            => '#f0f8ff',
+		'azure'                => '#f0ffff',
+		'bisque'               => '#ffe4c4',
+		'blanchedalmond'       => '#ffebcd',
+		'blueviolet'           => '#8a2be2',
+		'burlywood'            => '#deb887',
+		'chartreuse'           => '#7fff00',
+		'coral'                => '#ff7f50',
+		'cornsilk'             => '#fff8dc',
+		'cyan'                 => '#00ffff',
+		'darkcyan'             => '#008b8b',
+		'darkgray'             => '#a9a9a9',
+		'darkgrey'             => '#a9a9a9',
+		'darkkhaki'            => '#bdb76b',
+		'darkolivegreen'       => '#556b2f',
+		'darkorchid'           => '#9932cc',
+		'darksalmon'           => '#e9967a',
+		'darkslateblue'        => '#483d8b',
+		'darkslategrey'        => '#2f4f4f',
+		'darkturquoise'        => '#00ced1',
+		'deeppink'             => '#ff1493',
+		'dimgray'              => '#696969',
+		'dimgrey'              => '#696969',
+		'floralwhite'          => '#fffaf0',
+		'ghostwhite'           => '#f8f8ff',
+		'goldenrod'            => '#daa520',
+		'grey'                 => '#808080',
+		'honeydew'             => '#f0fff0',
+		'indianred'            => '#cd5c5c',
+		'ivory'                => '#fffff0',
+		'lavender'             => '#e6e6fa',
+		'lawngreen'            => '#7cfc00',
+		'lightblue'            => '#add8e6',
+		'lightcyan'            => '#e0ffff',
+		'lightgray'            => '#d3d3d3',
+		'lightgrey'            => '#d3d3d3',
+		'lightpink'            => '#ffb6c1',
+		'lightseagreen'        => '#20b2aa',
+		'lightslategrey'       => '#778899',
+		'lightsteelblue'       => '#b0c4de',
+		'linen'                => '#faf0e6',
+		'mediumblue'           => '#0000cd',
+		'mediumpurple'         => '#9370db',
+		'mediumslateblue'      => '#7b68ee',
+		'mediumturquoise'      => '#48d1cc',
+		'mistyrose'            => '#ffe4e1',
+		'navajowhite'          => '#ffdead',
+		'oldlace'              => '#fdf5e6',
+		'olivedrab'            => '#6b8e23',
+		'orangered'            => '#ff4500',
+		'palegoldenrod'        => '#eee8aa',
+		'paleturquoise'        => '#afeeee',
+		'papayawhip'           => '#ffefd5',
+		'peru'                 => '#cd853f',
+		'plum'                 => '#dda0dd',
+		'rosybrown'            => '#bc8f8f',
+		'saddlebrown'          => '#8b4513',
+		'sandybrown'           => '#f4a460',
+		'seashell'             => '#fff5ee',
+		'slateblue'            => '#6a5acd',
+		'slategrey'            => '#708090',
+		'snow'                 => '#fffafa',
+		'tomato'               => '#ff6347',
+		'violet'               => '#ee82ee',
+		'wheat'                => '#f5deb3',
+		'whitesmoke'           => '#f5f5f5',
+		'yellowgreen'          => '#9acd32',
+	);
 }

Spacing +9 added lines, -9 removed lines

@@ -121,7 +121,7 @@ 
                             if ($_selector === ".$_class") {
                                 /** @var \Sabberworm\CSS\Rule\Rule $_rule */
                                 foreach ($_decl->getRules() as $_rule) {
-                                    $styles[$_rule->getRule()] = $_rule->getValue() . "";
+                                    $styles[$_rule->getRule()] = $_rule->getValue()."";
                                 }
 
                                 break 2;
@@ -133,7 +133,7 @@ 
                     if ($_selector === $tag->tagName) {
                         /** @var \Sabberworm\CSS\Rule\Rule $_rule */
                         foreach ($_decl->getRules() as $_rule) {
-                            $styles[$_rule->getRule()] = $_rule->getValue() . "";
+                            $styles[$_rule->getRule()] = $_rule->getValue()."";
                         }
 
                         break;
@@ -168,7 +168,7 @@ 
                         break;
 
                     case self::TYPE_NUMBER:
-                        $value = ($styles[$from] === null) ? null : (float)$styles[$from];
+                        $value = ($styles[$from] === null) ? null : (float) $styles[$from];
                         break;
 
                     default:
@@ -310,7 +310,7 @@ 
         }
 
         $quad = preg_split("/\\s*[,\\/]\\s*/", trim(substr($color, $i + 1, $j - $i - 1)));
-        if (!isset($quad[3])) {
+        if ( ! isset($quad[3])) {
             $quad[3] = 1;
         }
 
@@ -350,17 +350,17 @@ 
             if (isset($hex[7])) {
                 $alpha = substr($hex, 7, 2);
                 if (ctype_xdigit($alpha)) {
-                    $c[3] = round(hexdec($alpha)/255, 2);
+                    $c[3] = round(hexdec($alpha) / 255, 2);
                 }
             }
         } else {
-            $c[0] = hexdec($hex[1] . $hex[1]);
-            $c[1] = hexdec($hex[2] . $hex[2]);
-            $c[2] = hexdec($hex[3] . $hex[3]);
+            $c[0] = hexdec($hex[1].$hex[1]);
+            $c[1] = hexdec($hex[2].$hex[2]);
+            $c[2] = hexdec($hex[3].$hex[3]);
 
             if (isset($hex[4])) {
                 if (ctype_xdigit($hex[4])) {
-                    $c[3] = round(hexdec($hex[4] . $hex[4])/255, 2);
+                    $c[3] = round(hexdec($hex[4].$hex[4]) / 255, 2);
                 }
             }
         }

vendor/dompdf/dompdf/lib/Cpdf.php

Indentation +6448 added lines, -6448 removed lines

@@ -15,1339 +15,1339 @@ 
 
 class Cpdf
 {
-    const PDF_VERSION = '1.7';
-
-    const ACROFORM_SIG_SIGNATURESEXISTS = 0x0001;
-    const ACROFORM_SIG_APPENDONLY =       0x0002;
-
-    const ACROFORM_FIELD_BUTTON =   'Btn';
-    const ACROFORM_FIELD_TEXT =     'Tx';
-    const ACROFORM_FIELD_CHOICE =   'Ch';
-    const ACROFORM_FIELD_SIG =      'Sig';
-
-    const ACROFORM_FIELD_READONLY =               0x0001;
-    const ACROFORM_FIELD_REQUIRED =               0x0002;
-
-    const ACROFORM_FIELD_TEXT_MULTILINE =         0x1000;
-    const ACROFORM_FIELD_TEXT_PASSWORD =          0x2000;
-    const ACROFORM_FIELD_TEXT_RICHTEXT =         0x10000;
-
-    const ACROFORM_FIELD_CHOICE_COMBO =          0x20000;
-    const ACROFORM_FIELD_CHOICE_EDIT =           0x40000;
-    const ACROFORM_FIELD_CHOICE_SORT =           0x80000;
-    const ACROFORM_FIELD_CHOICE_MULTISELECT =   0x200000;
-
-    const XOBJECT_SUBTYPE_FORM = 'Form';
-
-    /**
-     * @var integer The current number of pdf objects in the document
-     */
-    public $numObj = 0;
-
-    /**
-     * @var array This array contains all of the pdf objects, ready for final assembly
-     */
-    public $objects = [];
-
-    /**
-     * @var integer The objectId (number within the objects array) of the document catalog
-     */
-    public $catalogId;
-
-    /**
-     * @var integer The objectId (number within the objects array) of indirect references (Javascript EmbeddedFiles)
-     */
-    protected $indirectReferenceId = 0;
-
-    /**
-     * @var integer The objectId (number within the objects array)
-     */
-    protected $embeddedFilesId = 0;
-
-    /**
-     * AcroForm objectId
-     *
-     * @var integer
-     */
-    public $acroFormId;
-
-    /**
-     * @var int
-     */
-    public $signatureMaxLen = 5000;
-
-    /**
-     * @var array Array carrying information about the fonts that the system currently knows about
-     * Used to ensure that a font is not loaded twice, among other things
-     */
-    public $fonts = [];
-
-    /**
-     * @var string The default font metrics file to use if no other font has been loaded.
-     * The path to the directory containing the font metrics should be included
-     */
-    public $defaultFont = './fonts/Helvetica.afm';
-
-    /**
-     * @string A record of the current font
-     */
-    public $currentFont = '';
-
-    /**
-     * @var string The current base font
-     */
-    public $currentBaseFont = '';
-
-    /**
-     * @var integer The number of the current font within the font array
-     */
-    public $currentFontNum = 0;
-
-    /**
-     * @var integer
-     */
-    public $currentNode;
-
-    /**
-     * @var integer Object number of the current page
-     */
-    public $currentPage;
-
-    /**
-     * @var integer Object number of the currently active contents block
-     */
-    public $currentContents;
-
-    /**
-     * @var integer Number of fonts within the system
-     */
-    public $numFonts = 0;
-
-    /**
-     * @var integer Number of graphic state resources used
-     */
-    private $numStates = 0;
-
-    /**
-     * @var array Number of graphic state resources used
-     */
-    private $gstates = [];
-
-    /**
-     * @var array Current color for fill operations, defaults to inactive value,
-     * all three components should be between 0 and 1 inclusive when active
-     */
-    public $currentColor = null;
-
-    /**
-     * @var array Current color for stroke operations (lines etc.)
-     */
-    public $currentStrokeColor = null;
-
-    /**
-     * @var string Fill rule (nonzero or evenodd)
-     */
-    public $fillRule = "nonzero";
-
-    /**
-     * @var string Current style that lines are drawn in
-     */
-    public $currentLineStyle = '';
-
-    /**
-     * @var array Current line transparency (partial graphics state)
-     */
-    public $currentLineTransparency = ["mode" => "Normal", "opacity" => 1.0];
-
-    /**
-     * array Current fill transparency (partial graphics state)
-     */
-    public $currentFillTransparency = ["mode" => "Normal", "opacity" => 1.0];
-
-    /**
-     * @var array An array which is used to save the state of the document, mainly the colors and styles
-     * it is used to temporarily change to another state, then change back to what it was before
-     */
-    public $stateStack = [];
-
-    /**
-     * @var integer Number of elements within the state stack
-     */
-    public $nStateStack = 0;
-
-    /**
-     * @var integer Number of page objects within the document
-     */
-    public $numPages = 0;
-
-    /**
-     * @var array Object Id storage stack
-     */
-    public $stack = [];
-
-    /**
-     * @var integer Number of elements within the object Id storage stack
-     */
-    public $nStack = 0;
-
-    /**
-     * an array which contains information about the objects which are not firmly attached to pages
-     * these have been added with the addObject function
-     */
-    public $looseObjects = [];
-
-    /**
-     * array contains information about how the loose objects are to be added to the document
-     */
-    public $addLooseObjects = [];
-
-    /**
-     * @var integer The objectId of the information object for the document
-     * this contains authorship, title etc.
-     */
-    public $infoObject = 0;
-
-    /**
-     * @var integer Number of images being tracked within the document
-     */
-    public $numImages = 0;
-
-    /**
-     * @var array An array containing options about the document
-     * it defaults to turning on the compression of the objects
-     */
-    public $options = ['compression' => true];
-
-    /**
-     * @var integer The objectId of the first page of the document
-     */
-    public $firstPageId;
-
-    /**
-     * @var integer The object Id of the procset object
-     */
-    public $procsetObjectId;
-
-    /**
-     * @var array Store the information about the relationship between font families
-     * this used so that the code knows which font is the bold version of another font, etc.
-     * the value of this array is initialised in the constructor function.
-     */
-    public $fontFamilies = [];
-
-    /**
-     * @var string Folder for php serialized formats of font metrics files.
-     * If empty string, use same folder as original metrics files.
-     * This can be passed in from class creator.
-     * If this folder does not exist or is not writable, Cpdf will be **much** slower.
-     * Because of potential trouble with php safe mode, folder cannot be created at runtime.
-     */
-    public $fontcache = '';
-
-    /**
-     * @var integer The version of the font metrics cache file.
-     * This value must be manually incremented whenever the internal font data structure is modified.
-     */
-    public $fontcacheVersion = 6;
-
-    /**
-     * @var string Temporary folder.
-     * If empty string, will attempt system tmp folder.
-     * This can be passed in from class creator.
-     */
-    public $tmp = '';
-
-    /**
-     * @var string Track if the current font is bolded or italicised
-     */
-    public $currentTextState = '';
-
-    /**
-     * @var string Messages are stored here during processing, these can be selected afterwards to give some useful debug information
-     */
-    public $messages = '';
-
-    /**
-     * @var string The encryption array for the document encryption is stored here
-     */
-    public $arc4 = '';
-
-    /**
-     * @var integer The object Id of the encryption information
-     */
-    public $arc4_objnum = 0;
-
-    /**
-     * @var string The file identifier, used to uniquely identify a pdf document
-     */
-    public $fileIdentifier = '';
-
-    /**
-     * @var boolean A flag to say if a document is to be encrypted or not
-     */
-    public $encrypted = false;
-
-    /**
-     * @var string The encryption key for the encryption of all the document content (structure is not encrypted)
-     */
-    public $encryptionKey = '';
-
-    /**
-     * @var array Array which forms a stack to keep track of nested callback functions
-     */
-    public $callback = [];
-
-    /**
-     * @var integer The number of callback functions in the callback array
-     */
-    public $nCallback = 0;
-
-    /**
-     * @var array Store label->id pairs for named destinations, these will be used to replace internal links
-     * done this way so that destinations can be defined after the location that links to them
-     */
-    public $destinations = [];
-
-    /**
-     * @var array Store the stack for the transaction commands, each item in here is a record of the values of all the
-     * publiciables within the class, so that the user can rollback at will (from each 'start' command)
-     * note that this includes the objects array, so these can be large.
-     */
-    public $checkpoint = '';
-
-    /**
-     * @var array Table of Image origin filenames and image labels which were already added with o_image().
-     * Allows to merge identical images
-     */
-    public $imagelist = [];
-
-    /**
-     * @var array Table of already added alpha and plain image files for transparent PNG images.
-     */
-    protected $imageAlphaList = [];
-
-    /**
-     * @var array List of temporary image files to be deleted after processing.
-     */
-    protected $imageCache = [];
-
-    /**
-     * @var boolean Whether the text passed in should be treated as Unicode or just local character set.
-     */
-    public $isUnicode = false;
-
-    /**
-     * @var string the JavaScript code of the document
-     */
-    public $javascript = '';
-
-    /**
-     * @var boolean whether the compression is possible
-     */
-    protected $compressionReady = false;
-
-    /**
-     * @var array Current page size
-     */
-    protected $currentPageSize = ["width" => 0, "height" => 0];
-
-    /**
-     * @var array All the chars that will be required in the font subsets
-     */
-    protected $stringSubsets = [];
-
-    /**
-     * @var string The target internal encoding
-     */
-    protected static $targetEncoding = 'Windows-1252';
-
-    /**
-     * @var array
-     */
-    protected $byteRange = array();
-
-    /**
-     * @var array The list of the core fonts
-     */
-    protected static $coreFonts = [
-        'courier',
-        'courier-bold',
-        'courier-oblique',
-        'courier-boldoblique',
-        'helvetica',
-        'helvetica-bold',
-        'helvetica-oblique',
-        'helvetica-boldoblique',
-        'times-roman',
-        'times-bold',
-        'times-italic',
-        'times-bolditalic',
-        'symbol',
-        'zapfdingbats'
-    ];
-
-    /**
-     * Class constructor
-     * This will start a new document
-     *
-     * @param array   $pageSize  Array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
-     * @param boolean $isUnicode Whether text will be treated as Unicode or not.
-     * @param string  $fontcache The font cache folder
-     * @param string  $tmp       The temporary folder
-     */
-    function __construct($pageSize = [0, 0, 612, 792], $isUnicode = false, $fontcache = '', $tmp = '')
-    {
-        $this->isUnicode = $isUnicode;
-        $this->fontcache = rtrim($fontcache, DIRECTORY_SEPARATOR."/\\");
-        $this->tmp = ($tmp !== '' ? $tmp : sys_get_temp_dir());
-        $this->newDocument($pageSize);
-
-        $this->compressionReady = function_exists('gzcompress');
-
-        if (in_array('Windows-1252', mb_list_encodings())) {
-            self::$targetEncoding = 'Windows-1252';
-        }
-
-        // also initialize the font families that are known about already
-        $this->setFontFamily('init');
-    }
-
-    public function __destruct()
-    {
-        foreach ($this->imageCache as $file) {
-            if (file_exists($file)) {
-                unlink($file);
-            }
-        }
-    }
-
-    /**
-     * Document object methods (internal use only)
-     *
-     * There is about one object method for each type of object in the pdf document
-     * Each function has the same call list ($id,$action,$options).
-     * $id = the object ID of the object, or what it is to be if it is being created
-     * $action = a string specifying the action to be performed, though ALL must support:
-     *           'new' - create the object with the id $id
-     *           'out' - produce the output for the pdf object
-     * $options = optional, a string or array containing the various parameters for the object
-     *
-     * These, in conjunction with the output function are the ONLY way for output to be produced
-     * within the pdf 'file'.
-     */
-
-    /**
-     * Destination object, used to specify the location for the user to jump to, presently on opening
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_destination($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'destination', 'info' => []];
-                $tmp = '';
-                switch ($options['type']) {
-                    case 'XYZ':
-                    /** @noinspection PhpMissingBreakStatementInspection */
-                    case 'FitR':
-                        $tmp = ' ' . $options['p3'] . $tmp;
-                    case 'FitH':
-                    case 'FitV':
-                    case 'FitBH':
-                    /** @noinspection PhpMissingBreakStatementInspection */
-                    case 'FitBV':
-                        $tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
-                    case 'Fit':
-                    case 'FitB':
-                        $tmp = $options['type'] . $tmp;
-                        $this->objects[$id]['info']['string'] = $tmp;
-                        $this->objects[$id]['info']['page'] = $options['page'];
-                }
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-
-                $tmp = $o['info'];
-                $res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * set the viewer preferences
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return string|null
-     */
-    protected function o_viewerPreferences($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'viewerPreferences', 'info' => []];
-                break;
-
-            case 'add':
-                $o = &$this->objects[$id];
-
-                foreach ($options as $k => $v) {
-                    switch ($k) {
-                        // Boolean keys
-                        case 'HideToolbar':
-                        case 'HideMenubar':
-                        case 'HideWindowUI':
-                        case 'FitWindow':
-                        case 'CenterWindow':
-                        case 'DisplayDocTitle':
-                        case 'PickTrayByPDFSize':
-                            $o['info'][$k] = (bool)$v;
-                            break;
-
-                        // Integer keys
-                        case 'NumCopies':
-                            $o['info'][$k] = (int)$v;
-                            break;
-
-                        // Name keys
-                        case 'ViewArea':
-                        case 'ViewClip':
-                        case 'PrintClip':
-                        case 'PrintArea':
-                            $o['info'][$k] = (string)$v;
-                            break;
-
-                        // Named with limited valid values
-                        case 'NonFullScreenPageMode':
-                            if (!in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        case 'Direction':
-                            if (!in_array($v, ['L2R', 'R2L'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        case 'PrintScaling':
-                            if (!in_array($v, ['None', 'AppDefault'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        case 'Duplex':
-                            if (!in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
-                                break;
-                            }
-                            $o['info'][$k] = $v;
-                            break;
-
-                        // Integer array
-                        case 'PrintPageRange':
-                            // Cast to integer array
-                            foreach ($v as $vK => $vV) {
-                                $v[$vK] = (int)$vV;
-                            }
-                            $o['info'][$k] = array_values($v);
-                            break;
-                    }
-                }
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< ";
-
-                foreach ($o['info'] as $k => $v) {
-                    if (is_string($v)) {
-                        $v = '/' . $v;
-                    } elseif (is_int($v)) {
-                        $v = (string) $v;
-                    } elseif (is_bool($v)) {
-                        $v = ($v ? 'true' : 'false');
-                    } elseif (is_array($v)) {
-                        $v = '[' . implode(' ', $v) . ']';
-                    }
-                    $res .= "\n/$k $v";
-                }
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * define the document catalog, the overall controller for the document
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return string|null
-     */
-    protected function o_catalog($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'catalog', 'info' => []];
-                $this->catalogId = $id;
-                break;
-
-            case 'acroform':
-            case 'outlines':
-            case 'pages':
-            case 'openHere':
-            case 'names':
-                $o['info'][$action] = $options;
-                break;
-
-            case 'viewerPreferences':
-                if (!isset($o['info']['viewerPreferences'])) {
-                    $this->numObj++;
-                    $this->o_viewerPreferences($this->numObj, 'new');
-                    $o['info']['viewerPreferences'] = $this->numObj;
-                }
-
-                $vp = $o['info']['viewerPreferences'];
-                $this->o_viewerPreferences($vp, 'add', $options);
-
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Catalog";
-
-                foreach ($o['info'] as $k => $v) {
-                    switch ($k) {
-                        case 'outlines':
-                            $res .= "\n/Outlines $v 0 R";
-                            break;
-
-                        case 'pages':
-                            $res .= "\n/Pages $v 0 R";
-                            break;
-
-                        case 'viewerPreferences':
-                            $res .= "\n/ViewerPreferences $v 0 R";
-                            break;
-
-                        case 'openHere':
-                            $res .= "\n/OpenAction $v 0 R";
-                            break;
-
-                        case 'names':
-                            $res .= "\n/Names $v 0 R";
-                            break;
-
-                        case 'acroform':
-                            $res .= "\n/AcroForm $v 0 R";
-                            break;
-                    }
-                }
-
-                $res .= " >>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * object which is a parent to the pages in the document
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_pages($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'pages', 'info' => []];
-                $this->o_catalog($this->catalogId, 'pages', $id);
-                break;
-
-            case 'page':
-                if (!is_array($options)) {
-                    // then it will just be the id of the new page
-                    $o['info']['pages'][] = $options;
-                } else {
-                    // then it should be an array having 'id','rid','pos', where rid=the page to which this one will be placed relative
-                    // and pos is either 'before' or 'after', saying where this page will fit.
-                    if (isset($options['id']) && isset($options['rid']) && isset($options['pos'])) {
-                        $i = array_search($options['rid'], $o['info']['pages']);
-                        if (isset($o['info']['pages'][$i]) && $o['info']['pages'][$i] == $options['rid']) {
-
-                            // then there is a match
-                            // make a space
-                            switch ($options['pos']) {
-                                case 'before':
-                                    $k = $i;
-                                    break;
-
-                                case 'after':
-                                    $k = $i + 1;
-                                    break;
-
-                                default:
-                                    $k = -1;
-                                    break;
-                            }
-
-                            if ($k >= 0) {
-                                for ($j = count($o['info']['pages']) - 1; $j >= $k; $j--) {
-                                    $o['info']['pages'][$j + 1] = $o['info']['pages'][$j];
-                                }
-
-                                $o['info']['pages'][$k] = $options['id'];
-                            }
-                        }
-                    }
-                }
-                break;
-
-            case 'procset':
-                $o['info']['procset'] = $options;
-                break;
-
-            case 'mediaBox':
-                $o['info']['mediaBox'] = $options;
-                // which should be an array of 4 numbers
-                $this->currentPageSize = ['width' => $options[2], 'height' => $options[3]];
-                break;
-
-            case 'font':
-                $o['info']['fonts'][] = ['objNum' => $options['objNum'], 'fontNum' => $options['fontNum']];
-                break;
-
-            case 'extGState':
-                $o['info']['extGStates'][] = ['objNum' => $options['objNum'], 'stateNum' => $options['stateNum']];
-                break;
-
-            case 'xObject':
-                $o['info']['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
-                break;
-
-            case 'out':
-                if (count($o['info']['pages'])) {
-                    $res = "\n$id 0 obj\n<< /Type /Pages\n/Kids [";
-                    foreach ($o['info']['pages'] as $v) {
-                        $res .= "$v 0 R\n";
-                    }
-
-                    $res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
-
-                    if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
-                        isset($o['info']['procset']) ||
-                        (isset($o['info']['extGStates']) && count($o['info']['extGStates']))
-                    ) {
-                        $res .= "\n/Resources <<";
-
-                        if (isset($o['info']['procset'])) {
-                            $res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
-                        }
-
-                        if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
-                            $res .= "\n/Font << ";
-                            foreach ($o['info']['fonts'] as $finfo) {
-                                $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
-                            }
-                            $res .= "\n>>";
-                        }
-
-                        if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
-                            $res .= "\n/XObject << ";
-                            foreach ($o['info']['xObjects'] as $finfo) {
-                                $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
-                            }
-                            $res .= "\n>>";
-                        }
-
-                        if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
-                            $res .= "\n/ExtGState << ";
-                            foreach ($o['info']['extGStates'] as $gstate) {
-                                $res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
-                            }
-                            $res .= "\n>>";
-                        }
-
-                        $res .= "\n>>";
-                        if (isset($o['info']['mediaBox'])) {
-                            $tmp = $o['info']['mediaBox'];
-                            $res .= "\n/MediaBox [" . sprintf(
-                                    '%.3F %.3F %.3F %.3F',
-                                    $tmp[0],
-                                    $tmp[1],
-                                    $tmp[2],
-                                    $tmp[3]
-                                ) . ']';
-                        }
-                    }
-
-                    $res .= "\n >>\nendobj";
-                } else {
-                    $res = "\n$id 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
-                }
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * define the outlines in the doc, empty for now
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_outlines($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'outlines', 'info' => ['outlines' => []]];
-                $this->o_catalog($this->catalogId, 'outlines', $id);
-                break;
-
-            case 'outline':
-                $o['info']['outlines'][] = $options;
-                break;
-
-            case 'out':
-                if (count($o['info']['outlines'])) {
-                    $res = "\n$id 0 obj\n<< /Type /Outlines /Kids [";
-                    foreach ($o['info']['outlines'] as $v) {
-                        $res .= "$v 0 R ";
-                    }
-
-                    $res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
-                } else {
-                    $res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
-                }
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an object to hold the font description
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return string|null
-     * @throws FontNotFoundException
-     */
-    protected function o_font($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'font',
-                    'info' => [
-                        'name'         => $options['name'],
-                        'fontFileName' => $options['fontFileName'],
-                        'SubType'      => 'Type1',
-                        'isSubsetting'   => $options['isSubsetting']
-                    ]
-                ];
-                $fontNum = $this->numFonts;
-                $this->objects[$id]['info']['fontNum'] = $fontNum;
-
-                // deal with the encoding and the differences
-                if (isset($options['differences'])) {
-                    // then we'll need an encoding dictionary
-                    $this->numObj++;
-                    $this->o_fontEncoding($this->numObj, 'new', $options);
-                    $this->objects[$id]['info']['encodingDictionary'] = $this->numObj;
-                } else {
-                    if (isset($options['encoding'])) {
-                        // we can specify encoding here
-                        switch ($options['encoding']) {
-                            case 'WinAnsiEncoding':
-                            case 'MacRomanEncoding':
-                            case 'MacExpertEncoding':
-                                $this->objects[$id]['info']['encoding'] = $options['encoding'];
-                                break;
-
-                            case 'none':
-                                break;
-
-                            default:
-                                $this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
-                                break;
-                        }
-                    } else {
-                        $this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
-                    }
-                }
-
-                if ($this->fonts[$options['fontFileName']]['isUnicode']) {
-                    // For Unicode fonts, we need to incorporate font data into
-                    // sub-sections that are linked from the primary font section.
-                    // Look at o_fontGIDtoCID and o_fontDescendentCID functions
-                    // for more information.
-                    //
-                    // All of this code is adapted from the excellent changes made to
-                    // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
-
-                    $toUnicodeId = ++$this->numObj;
-                    $this->o_toUnicode($toUnicodeId, 'new');
-                    $this->objects[$id]['info']['toUnicode'] = $toUnicodeId;
-
-                    $cidFontId = ++$this->numObj;
-                    $this->o_fontDescendentCID($cidFontId, 'new', $options);
-                    $this->objects[$id]['info']['cidFont'] = $cidFontId;
-                }
-
-                // also tell the pages node about the new font
-                $this->o_pages($this->currentNode, 'font', ['fontNum' => $fontNum, 'objNum' => $id]);
-                break;
-
-            case 'add':
-                $font_options = $this->processFont($id, $o['info']);
-
-                if ($font_options !== false) {
-                    foreach ($font_options as $k => $v) {
-                        switch ($k) {
-                            case 'BaseFont':
-                                $o['info']['name'] = $v;
-                                break;
-                            case 'FirstChar':
-                            case 'LastChar':
-                            case 'Widths':
-                            case 'FontDescriptor':
-                            case 'SubType':
-                                $this->addMessage('o_font ' . $k . " : " . $v);
-                                $o['info'][$k] = $v;
-                                break;
-                        }
-                    }
-
-                    // pass values down to descendent font
-                    if (isset($o['info']['cidFont'])) {
-                        $this->o_fontDescendentCID($o['info']['cidFont'], 'add', $font_options);
-                    }
-                }
-                break;
-
-            case 'out':
-                if ($this->fonts[$this->objects[$id]['info']['fontFileName']]['isUnicode']) {
-                    // For Unicode fonts, we need to incorporate font data into
-                    // sub-sections that are linked from the primary font section.
-                    // Look at o_fontGIDtoCID and o_fontDescendentCID functions
-                    // for more information.
-                    //
-                    // All of this code is adapted from the excellent changes made to
-                    // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
-
-                    $res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-
-                    // The horizontal identity mapping for 2-byte CIDs; may be used
-                    // with CIDFonts using any Registry, Ordering, and Supplement values.
-                    $res .= "/Encoding /Identity-H\n";
-                    $res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
-                    $res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
-                    $res .= ">>\n";
-                    $res .= "endobj";
-                } else {
-                    $res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
-                    $res .= "/Name /F" . $o['info']['fontNum'] . "\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-
-                    if (isset($o['info']['encodingDictionary'])) {
-                        // then place a reference to the dictionary
-                        $res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
-                    } else {
-                        if (isset($o['info']['encoding'])) {
-                            // use the specified encoding
-                            $res .= "/Encoding /" . $o['info']['encoding'] . "\n";
-                        }
-                    }
-
-                    if (isset($o['info']['FirstChar'])) {
-                        $res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
-                    }
-
-                    if (isset($o['info']['LastChar'])) {
-                        $res .= "/LastChar " . $o['info']['LastChar'] . "\n";
-                    }
-
-                    if (isset($o['info']['Widths'])) {
-                        $res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
-                    }
-
-                    if (isset($o['info']['FontDescriptor'])) {
-                        $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
-                    }
-
-                    $res .= ">>\n";
-                    $res .= "endobj";
-                }
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function getFontSubsettingTag(array $font): string
-    {
-        // convert font num to hexavigesimal numeral system letters A - Z only
-        $base_26 = strtoupper(base_convert($font['fontNum'], 10, 26));
-        for ($i = 0; $i < strlen($base_26); $i++) {
-            $char = $base_26[$i];
-            if ($char <= "9") {
-                $base_26[$i] = chr(65 + intval($char));
-            } else {
-                $base_26[$i] = chr(ord($char) + 10);
-            }
-        }
-
-        return 'SUB' . str_pad($base_26, 3, 'A', STR_PAD_LEFT);
-    }
-
-    /**
-     * @param int $fontObjId
-     * @param array $object_info
-     * @return array|false
-     * @throws FontNotFoundException
-     */
-    private function processFont(int $fontObjId, array $object_info)
-    {
-        $fontFileName = $object_info['fontFileName'];
-        if (!isset($this->fonts[$fontFileName])) {
-            return false;
-        }
-
-        $font = &$this->fonts[$fontFileName];
-
-        $fileSuffix = $font['fileSuffix'];
-        $fileSuffixLower = strtolower($font['fileSuffix']);
-        $fbfile = "$fontFileName.$fileSuffix";
-        $isTtfFont = $fileSuffixLower === 'ttf';
-        $isPfbFont = $fileSuffixLower === 'pfb';
-
-        $this->addMessage('selectFont: checking for - ' . $fbfile);
-
-        if (!$fileSuffix) {
-            $this->addMessage(
-                'selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts'
-            );
-
-            return false;
-        } else {
-            $adobeFontName = isset($font['PostScriptName']) ? $font['PostScriptName'] : $font['FontName'];
-            //        $fontObj = $this->numObj;
-            $this->addMessage("selectFont: adding font file - $fbfile - $adobeFontName");
-
-            // find the array of font widths, and put that into an object.
-            $firstChar = -1;
-            $lastChar = 0;
-            $widths = [];
-            $cid_widths = [];
-
-            foreach ($font['C'] as $num => $d) {
-                if (intval($num) > 0 || $num == '0') {
-                    if (!$font['isUnicode']) {
-                        // With Unicode, widths array isn't used
-                        if ($lastChar > 0 && $num > $lastChar + 1) {
-                            for ($i = $lastChar + 1; $i < $num; $i++) {
-                                $widths[] = 0;
-                            }
-                        }
-                    }
-
-                    $widths[] = $d;
-
-                    if ($font['isUnicode']) {
-                        $cid_widths[$num] = $d;
-                    }
-
-                    if ($firstChar == -1) {
-                        $firstChar = $num;
-                    }
-
-                    $lastChar = $num;
-                }
-            }
-
-            // also need to adjust the widths for the differences array
-            if (isset($object['differences'])) {
-                foreach ($object['differences'] as $charNum => $charName) {
-                    if ($charNum > $lastChar) {
-                        if (!$object['isUnicode']) {
-                            // With Unicode, widths array isn't used
-                            for ($i = $lastChar + 1; $i <= $charNum; $i++) {
-                                $widths[] = 0;
-                            }
-                        }
-
-                        $lastChar = $charNum;
-                    }
-
-                    if (isset($font['C'][$charName])) {
-                        $widths[$charNum - $firstChar] = $font['C'][$charName];
-                        if ($font['isUnicode']) {
-                            $cid_widths[$charName] = $font['C'][$charName];
-                        }
-                    }
-                }
-            }
-
-            if ($font['isUnicode']) {
-                $font['CIDWidths'] = $cid_widths;
-            }
-
-            $this->addMessage('selectFont: FirstChar = ' . $firstChar);
-            $this->addMessage('selectFont: LastChar = ' . $lastChar);
-
-            $widthid = -1;
-
-            if (!$font['isUnicode']) {
-                // With Unicode, widths array isn't used
-
-                $this->numObj++;
-                $this->o_contents($this->numObj, 'new', 'raw');
-                $this->objects[$this->numObj]['c'] .= '[' . implode(' ', $widths) . ']';
-                $widthid = $this->numObj;
-            }
-
-            $missing_width = 500;
-            $stemV = 70;
-
-            if (isset($font['MissingWidth'])) {
-                $missing_width = $font['MissingWidth'];
-            }
-            if (isset($font['StdVW'])) {
-                $stemV = $font['StdVW'];
-            } else {
-                if (isset($font['Weight']) && preg_match('!(bold|black)!i', $font['Weight'])) {
-                    $stemV = 120;
-                }
-            }
-
-            // load the pfb file, and put that into an object too.
-            // note that pdf supports only binary format type 1 font files, though there is a
-            // simple utility to convert them from pfa to pfb.
-            if (!$font['isSubsetting']) {
-                $data = file_get_contents($fbfile);
-            } else {
-                $adobeFontName = $this->getFontSubsettingTag($font) . '+' . $adobeFontName;
-                $this->stringSubsets[$fontFileName][] = 32; // Force space if not in yet
-
-                $subset = $this->stringSubsets[$fontFileName];
-                sort($subset);
-
-                // Load font
-                $font_obj = Font::load($fbfile);
-                $font_obj->parse();
-
-                // Define subset
-                $font_obj->setSubset($subset);
-                $font_obj->reduce();
-
-                // Write new font
-                $tmp_name = @tempnam($this->tmp, "cpdf_subset_");
-                $font_obj->open($tmp_name, BinaryStream::modeReadWrite);
-                $font_obj->encode(["OS/2"]);
-                $font_obj->close();
-
-                // Parse the new font to get cid2gid and widths
-                $font_obj = Font::load($tmp_name);
-
-                // Find Unicode char map table
-                $subtable = null;
-                foreach ($font_obj->getData("cmap", "subtables") as $_subtable) {
-                    if ($_subtable["platformID"] == 0 || $_subtable["platformID"] == 3 && $_subtable["platformSpecificID"] == 1) {
-                        $subtable = $_subtable;
-                        break;
-                    }
-                }
-
-                if ($subtable) {
-                    $glyphIndexArray = $subtable["glyphIndexArray"];
-                    $hmtx = $font_obj->getData("hmtx");
-
-                    unset($glyphIndexArray[0xFFFF]);
-
-                    $cidtogid = str_pad('', max(array_keys($glyphIndexArray)) * 2 + 1, "\x00");
-                    $font['CIDWidths'] = [];
-                    foreach ($glyphIndexArray as $cid => $gid) {
-                        if ($cid >= 0 && $cid < 0xFFFF && $gid) {
-                            $cidtogid[$cid * 2] = chr($gid >> 8);
-                            $cidtogid[$cid * 2 + 1] = chr($gid & 0xFF);
-                        }
-
-                        $width = $font_obj->normalizeFUnit(isset($hmtx[$gid]) ? $hmtx[$gid][0] : $hmtx[0][0]);
-                        $font['CIDWidths'][$cid] = $width;
-                    }
-
-                    $font['CIDtoGID'] = base64_encode(gzcompress($cidtogid));
-                    $font['CIDtoGID_Compressed'] = true;
-
-                    $data = file_get_contents($tmp_name);
-                } else {
-                    $data = file_get_contents($fbfile);
-                }
-
-                $font_obj->close();
-                unlink($tmp_name);
-            }
-
-            // create the font descriptor
-            $this->numObj++;
-            $fontDescriptorId = $this->numObj;
-
-            $this->numObj++;
-            $pfbid = $this->numObj;
-
-            // determine flags (more than a little flakey, hopefully will not matter much)
-            $flags = 0;
-
-            if ($font['ItalicAngle'] != 0) {
-                $flags += pow(2, 6);
-            }
-
-            if ($font['IsFixedPitch'] === 'true') {
-                $flags += 1;
-            }
-
-            $flags += pow(2, 5); // assume non-sybolic
-            $list = [
-                'Ascent'       => 'Ascender',
-                'CapHeight'    => 'Ascender', //FIXME: php-font-lib is not grabbing this value, so we'll fake it and use the Ascender value // 'CapHeight'
-                'MissingWidth' => 'MissingWidth',
-                'Descent'      => 'Descender',
-                'FontBBox'     => 'FontBBox',
-                'ItalicAngle'  => 'ItalicAngle'
-            ];
-            $fdopt = [
-                'Flags'    => $flags,
-                'FontName' => $adobeFontName,
-                'StemV'    => $stemV
-            ];
-
-            foreach ($list as $k => $v) {
-                if (isset($font[$v])) {
-                    $fdopt[$k] = $font[$v];
-                }
-            }
-
-            if ($isPfbFont) {
-                $fdopt['FontFile'] = $pfbid;
-            } elseif ($isTtfFont) {
-                $fdopt['FontFile2'] = $pfbid;
-            }
-
-            $this->o_fontDescriptor($fontDescriptorId, 'new', $fdopt);
-
-            // embed the font program
-            $this->o_contents($this->numObj, 'new');
-            $this->objects[$pfbid]['c'] .= $data;
-
-            // determine the cruicial lengths within this file
-            if ($isPfbFont) {
-                $l1 = strpos($data, 'eexec') + 6;
-                $l2 = strpos($data, '00000000') - $l1;
-                $l3 = mb_strlen($data, '8bit') - $l2 - $l1;
-                $this->o_contents(
-                    $this->numObj,
-                    'add',
-                    ['Length1' => $l1, 'Length2' => $l2, 'Length3' => $l3]
-                );
-            } elseif ($isTtfFont) {
-                $l1 = mb_strlen($data, '8bit');
-                $this->o_contents($this->numObj, 'add', ['Length1' => $l1]);
-            }
-
-            // tell the font object about all this new stuff
-            $options = [
-                'BaseFont'       => $adobeFontName,
-                'MissingWidth'   => $missing_width,
-                'Widths'         => $widthid,
-                'FirstChar'      => $firstChar,
-                'LastChar'       => $lastChar,
-                'FontDescriptor' => $fontDescriptorId
-            ];
-
-            if ($isTtfFont) {
-                $options['SubType'] = 'TrueType';
-            }
-
-            $this->addMessage("adding extra info to font.($fontObjId)");
-
-            foreach ($options as $fk => $fv) {
-                $this->addMessage("$fk : $fv");
-            }
-        }
-
-        return $options;
-    }
-
-    /**
-     * A toUnicode section, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @return null|string
-     */
-    protected function o_toUnicode($id, $action)
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'toUnicode'
-                ];
-                break;
-            case 'add':
-                break;
-            case 'out':
-                $ordering = 'UCS';
-                $registry = 'Adobe';
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $ordering = $this->ARC4($ordering);
-                    $registry = $this->filterText($this->ARC4($registry), false, false);
-                }
-
-                $stream = <<<EOT
+	const PDF_VERSION = '1.7';
+
+	const ACROFORM_SIG_SIGNATURESEXISTS = 0x0001;
+	const ACROFORM_SIG_APPENDONLY =       0x0002;
+
+	const ACROFORM_FIELD_BUTTON =   'Btn';
+	const ACROFORM_FIELD_TEXT =     'Tx';
+	const ACROFORM_FIELD_CHOICE =   'Ch';
+	const ACROFORM_FIELD_SIG =      'Sig';
+
+	const ACROFORM_FIELD_READONLY =               0x0001;
+	const ACROFORM_FIELD_REQUIRED =               0x0002;
+
+	const ACROFORM_FIELD_TEXT_MULTILINE =         0x1000;
+	const ACROFORM_FIELD_TEXT_PASSWORD =          0x2000;
+	const ACROFORM_FIELD_TEXT_RICHTEXT =         0x10000;
+
+	const ACROFORM_FIELD_CHOICE_COMBO =          0x20000;
+	const ACROFORM_FIELD_CHOICE_EDIT =           0x40000;
+	const ACROFORM_FIELD_CHOICE_SORT =           0x80000;
+	const ACROFORM_FIELD_CHOICE_MULTISELECT =   0x200000;
+
+	const XOBJECT_SUBTYPE_FORM = 'Form';
+
+	/**
+	 * @var integer The current number of pdf objects in the document
+	 */
+	public $numObj = 0;
+
+	/**
+	 * @var array This array contains all of the pdf objects, ready for final assembly
+	 */
+	public $objects = [];
+
+	/**
+	 * @var integer The objectId (number within the objects array) of the document catalog
+	 */
+	public $catalogId;
+
+	/**
+	 * @var integer The objectId (number within the objects array) of indirect references (Javascript EmbeddedFiles)
+	 */
+	protected $indirectReferenceId = 0;
+
+	/**
+	 * @var integer The objectId (number within the objects array)
+	 */
+	protected $embeddedFilesId = 0;
+
+	/**
+	 * AcroForm objectId
+	 *
+	 * @var integer
+	 */
+	public $acroFormId;
+
+	/**
+	 * @var int
+	 */
+	public $signatureMaxLen = 5000;
+
+	/**
+	 * @var array Array carrying information about the fonts that the system currently knows about
+	 * Used to ensure that a font is not loaded twice, among other things
+	 */
+	public $fonts = [];
+
+	/**
+	 * @var string The default font metrics file to use if no other font has been loaded.
+	 * The path to the directory containing the font metrics should be included
+	 */
+	public $defaultFont = './fonts/Helvetica.afm';
+
+	/**
+	 * @string A record of the current font
+	 */
+	public $currentFont = '';
+
+	/**
+	 * @var string The current base font
+	 */
+	public $currentBaseFont = '';
+
+	/**
+	 * @var integer The number of the current font within the font array
+	 */
+	public $currentFontNum = 0;
+
+	/**
+	 * @var integer
+	 */
+	public $currentNode;
+
+	/**
+	 * @var integer Object number of the current page
+	 */
+	public $currentPage;
+
+	/**
+	 * @var integer Object number of the currently active contents block
+	 */
+	public $currentContents;
+
+	/**
+	 * @var integer Number of fonts within the system
+	 */
+	public $numFonts = 0;
+
+	/**
+	 * @var integer Number of graphic state resources used
+	 */
+	private $numStates = 0;
+
+	/**
+	 * @var array Number of graphic state resources used
+	 */
+	private $gstates = [];
+
+	/**
+	 * @var array Current color for fill operations, defaults to inactive value,
+	 * all three components should be between 0 and 1 inclusive when active
+	 */
+	public $currentColor = null;
+
+	/**
+	 * @var array Current color for stroke operations (lines etc.)
+	 */
+	public $currentStrokeColor = null;
+
+	/**
+	 * @var string Fill rule (nonzero or evenodd)
+	 */
+	public $fillRule = "nonzero";
+
+	/**
+	 * @var string Current style that lines are drawn in
+	 */
+	public $currentLineStyle = '';
+
+	/**
+	 * @var array Current line transparency (partial graphics state)
+	 */
+	public $currentLineTransparency = ["mode" => "Normal", "opacity" => 1.0];
+
+	/**
+	 * array Current fill transparency (partial graphics state)
+	 */
+	public $currentFillTransparency = ["mode" => "Normal", "opacity" => 1.0];
+
+	/**
+	 * @var array An array which is used to save the state of the document, mainly the colors and styles
+	 * it is used to temporarily change to another state, then change back to what it was before
+	 */
+	public $stateStack = [];
+
+	/**
+	 * @var integer Number of elements within the state stack
+	 */
+	public $nStateStack = 0;
+
+	/**
+	 * @var integer Number of page objects within the document
+	 */
+	public $numPages = 0;
+
+	/**
+	 * @var array Object Id storage stack
+	 */
+	public $stack = [];
+
+	/**
+	 * @var integer Number of elements within the object Id storage stack
+	 */
+	public $nStack = 0;
+
+	/**
+	 * an array which contains information about the objects which are not firmly attached to pages
+	 * these have been added with the addObject function
+	 */
+	public $looseObjects = [];
+
+	/**
+	 * array contains information about how the loose objects are to be added to the document
+	 */
+	public $addLooseObjects = [];
+
+	/**
+	 * @var integer The objectId of the information object for the document
+	 * this contains authorship, title etc.
+	 */
+	public $infoObject = 0;
+
+	/**
+	 * @var integer Number of images being tracked within the document
+	 */
+	public $numImages = 0;
+
+	/**
+	 * @var array An array containing options about the document
+	 * it defaults to turning on the compression of the objects
+	 */
+	public $options = ['compression' => true];
+
+	/**
+	 * @var integer The objectId of the first page of the document
+	 */
+	public $firstPageId;
+
+	/**
+	 * @var integer The object Id of the procset object
+	 */
+	public $procsetObjectId;
+
+	/**
+	 * @var array Store the information about the relationship between font families
+	 * this used so that the code knows which font is the bold version of another font, etc.
+	 * the value of this array is initialised in the constructor function.
+	 */
+	public $fontFamilies = [];
+
+	/**
+	 * @var string Folder for php serialized formats of font metrics files.
+	 * If empty string, use same folder as original metrics files.
+	 * This can be passed in from class creator.
+	 * If this folder does not exist or is not writable, Cpdf will be **much** slower.
+	 * Because of potential trouble with php safe mode, folder cannot be created at runtime.
+	 */
+	public $fontcache = '';
+
+	/**
+	 * @var integer The version of the font metrics cache file.
+	 * This value must be manually incremented whenever the internal font data structure is modified.
+	 */
+	public $fontcacheVersion = 6;
+
+	/**
+	 * @var string Temporary folder.
+	 * If empty string, will attempt system tmp folder.
+	 * This can be passed in from class creator.
+	 */
+	public $tmp = '';
+
+	/**
+	 * @var string Track if the current font is bolded or italicised
+	 */
+	public $currentTextState = '';
+
+	/**
+	 * @var string Messages are stored here during processing, these can be selected afterwards to give some useful debug information
+	 */
+	public $messages = '';
+
+	/**
+	 * @var string The encryption array for the document encryption is stored here
+	 */
+	public $arc4 = '';
+
+	/**
+	 * @var integer The object Id of the encryption information
+	 */
+	public $arc4_objnum = 0;
+
+	/**
+	 * @var string The file identifier, used to uniquely identify a pdf document
+	 */
+	public $fileIdentifier = '';
+
+	/**
+	 * @var boolean A flag to say if a document is to be encrypted or not
+	 */
+	public $encrypted = false;
+
+	/**
+	 * @var string The encryption key for the encryption of all the document content (structure is not encrypted)
+	 */
+	public $encryptionKey = '';
+
+	/**
+	 * @var array Array which forms a stack to keep track of nested callback functions
+	 */
+	public $callback = [];
+
+	/**
+	 * @var integer The number of callback functions in the callback array
+	 */
+	public $nCallback = 0;
+
+	/**
+	 * @var array Store label->id pairs for named destinations, these will be used to replace internal links
+	 * done this way so that destinations can be defined after the location that links to them
+	 */
+	public $destinations = [];
+
+	/**
+	 * @var array Store the stack for the transaction commands, each item in here is a record of the values of all the
+	 * publiciables within the class, so that the user can rollback at will (from each 'start' command)
+	 * note that this includes the objects array, so these can be large.
+	 */
+	public $checkpoint = '';
+
+	/**
+	 * @var array Table of Image origin filenames and image labels which were already added with o_image().
+	 * Allows to merge identical images
+	 */
+	public $imagelist = [];
+
+	/**
+	 * @var array Table of already added alpha and plain image files for transparent PNG images.
+	 */
+	protected $imageAlphaList = [];
+
+	/**
+	 * @var array List of temporary image files to be deleted after processing.
+	 */
+	protected $imageCache = [];
+
+	/**
+	 * @var boolean Whether the text passed in should be treated as Unicode or just local character set.
+	 */
+	public $isUnicode = false;
+
+	/**
+	 * @var string the JavaScript code of the document
+	 */
+	public $javascript = '';
+
+	/**
+	 * @var boolean whether the compression is possible
+	 */
+	protected $compressionReady = false;
+
+	/**
+	 * @var array Current page size
+	 */
+	protected $currentPageSize = ["width" => 0, "height" => 0];
+
+	/**
+	 * @var array All the chars that will be required in the font subsets
+	 */
+	protected $stringSubsets = [];
+
+	/**
+	 * @var string The target internal encoding
+	 */
+	protected static $targetEncoding = 'Windows-1252';
+
+	/**
+	 * @var array
+	 */
+	protected $byteRange = array();
+
+	/**
+	 * @var array The list of the core fonts
+	 */
+	protected static $coreFonts = [
+		'courier',
+		'courier-bold',
+		'courier-oblique',
+		'courier-boldoblique',
+		'helvetica',
+		'helvetica-bold',
+		'helvetica-oblique',
+		'helvetica-boldoblique',
+		'times-roman',
+		'times-bold',
+		'times-italic',
+		'times-bolditalic',
+		'symbol',
+		'zapfdingbats'
+	];
+
+	/**
+	 * Class constructor
+	 * This will start a new document
+	 *
+	 * @param array   $pageSize  Array of 4 numbers, defining the bottom left and upper right corner of the page. first two are normally zero.
+	 * @param boolean $isUnicode Whether text will be treated as Unicode or not.
+	 * @param string  $fontcache The font cache folder
+	 * @param string  $tmp       The temporary folder
+	 */
+	function __construct($pageSize = [0, 0, 612, 792], $isUnicode = false, $fontcache = '', $tmp = '')
+	{
+		$this->isUnicode = $isUnicode;
+		$this->fontcache = rtrim($fontcache, DIRECTORY_SEPARATOR."/\\");
+		$this->tmp = ($tmp !== '' ? $tmp : sys_get_temp_dir());
+		$this->newDocument($pageSize);
+
+		$this->compressionReady = function_exists('gzcompress');
+
+		if (in_array('Windows-1252', mb_list_encodings())) {
+			self::$targetEncoding = 'Windows-1252';
+		}
+
+		// also initialize the font families that are known about already
+		$this->setFontFamily('init');
+	}
+
+	public function __destruct()
+	{
+		foreach ($this->imageCache as $file) {
+			if (file_exists($file)) {
+				unlink($file);
+			}
+		}
+	}
+
+	/**
+	 * Document object methods (internal use only)
+	 *
+	 * There is about one object method for each type of object in the pdf document
+	 * Each function has the same call list ($id,$action,$options).
+	 * $id = the object ID of the object, or what it is to be if it is being created
+	 * $action = a string specifying the action to be performed, though ALL must support:
+	 *           'new' - create the object with the id $id
+	 *           'out' - produce the output for the pdf object
+	 * $options = optional, a string or array containing the various parameters for the object
+	 *
+	 * These, in conjunction with the output function are the ONLY way for output to be produced
+	 * within the pdf 'file'.
+	 */
+
+	/**
+	 * Destination object, used to specify the location for the user to jump to, presently on opening
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_destination($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'destination', 'info' => []];
+				$tmp = '';
+				switch ($options['type']) {
+					case 'XYZ':
+					/** @noinspection PhpMissingBreakStatementInspection */
+					case 'FitR':
+						$tmp = ' ' . $options['p3'] . $tmp;
+					case 'FitH':
+					case 'FitV':
+					case 'FitBH':
+					/** @noinspection PhpMissingBreakStatementInspection */
+					case 'FitBV':
+						$tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
+					case 'Fit':
+					case 'FitB':
+						$tmp = $options['type'] . $tmp;
+						$this->objects[$id]['info']['string'] = $tmp;
+						$this->objects[$id]['info']['page'] = $options['page'];
+				}
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+
+				$tmp = $o['info'];
+				$res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * set the viewer preferences
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return string|null
+	 */
+	protected function o_viewerPreferences($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'viewerPreferences', 'info' => []];
+				break;
+
+			case 'add':
+				$o = &$this->objects[$id];
+
+				foreach ($options as $k => $v) {
+					switch ($k) {
+						// Boolean keys
+						case 'HideToolbar':
+						case 'HideMenubar':
+						case 'HideWindowUI':
+						case 'FitWindow':
+						case 'CenterWindow':
+						case 'DisplayDocTitle':
+						case 'PickTrayByPDFSize':
+							$o['info'][$k] = (bool)$v;
+							break;
+
+						// Integer keys
+						case 'NumCopies':
+							$o['info'][$k] = (int)$v;
+							break;
+
+						// Name keys
+						case 'ViewArea':
+						case 'ViewClip':
+						case 'PrintClip':
+						case 'PrintArea':
+							$o['info'][$k] = (string)$v;
+							break;
+
+						// Named with limited valid values
+						case 'NonFullScreenPageMode':
+							if (!in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						case 'Direction':
+							if (!in_array($v, ['L2R', 'R2L'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						case 'PrintScaling':
+							if (!in_array($v, ['None', 'AppDefault'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						case 'Duplex':
+							if (!in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
+								break;
+							}
+							$o['info'][$k] = $v;
+							break;
+
+						// Integer array
+						case 'PrintPageRange':
+							// Cast to integer array
+							foreach ($v as $vK => $vV) {
+								$v[$vK] = (int)$vV;
+							}
+							$o['info'][$k] = array_values($v);
+							break;
+					}
+				}
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< ";
+
+				foreach ($o['info'] as $k => $v) {
+					if (is_string($v)) {
+						$v = '/' . $v;
+					} elseif (is_int($v)) {
+						$v = (string) $v;
+					} elseif (is_bool($v)) {
+						$v = ($v ? 'true' : 'false');
+					} elseif (is_array($v)) {
+						$v = '[' . implode(' ', $v) . ']';
+					}
+					$res .= "\n/$k $v";
+				}
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * define the document catalog, the overall controller for the document
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return string|null
+	 */
+	protected function o_catalog($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'catalog', 'info' => []];
+				$this->catalogId = $id;
+				break;
+
+			case 'acroform':
+			case 'outlines':
+			case 'pages':
+			case 'openHere':
+			case 'names':
+				$o['info'][$action] = $options;
+				break;
+
+			case 'viewerPreferences':
+				if (!isset($o['info']['viewerPreferences'])) {
+					$this->numObj++;
+					$this->o_viewerPreferences($this->numObj, 'new');
+					$o['info']['viewerPreferences'] = $this->numObj;
+				}
+
+				$vp = $o['info']['viewerPreferences'];
+				$this->o_viewerPreferences($vp, 'add', $options);
+
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Catalog";
+
+				foreach ($o['info'] as $k => $v) {
+					switch ($k) {
+						case 'outlines':
+							$res .= "\n/Outlines $v 0 R";
+							break;
+
+						case 'pages':
+							$res .= "\n/Pages $v 0 R";
+							break;
+
+						case 'viewerPreferences':
+							$res .= "\n/ViewerPreferences $v 0 R";
+							break;
+
+						case 'openHere':
+							$res .= "\n/OpenAction $v 0 R";
+							break;
+
+						case 'names':
+							$res .= "\n/Names $v 0 R";
+							break;
+
+						case 'acroform':
+							$res .= "\n/AcroForm $v 0 R";
+							break;
+					}
+				}
+
+				$res .= " >>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * object which is a parent to the pages in the document
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_pages($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'pages', 'info' => []];
+				$this->o_catalog($this->catalogId, 'pages', $id);
+				break;
+
+			case 'page':
+				if (!is_array($options)) {
+					// then it will just be the id of the new page
+					$o['info']['pages'][] = $options;
+				} else {
+					// then it should be an array having 'id','rid','pos', where rid=the page to which this one will be placed relative
+					// and pos is either 'before' or 'after', saying where this page will fit.
+					if (isset($options['id']) && isset($options['rid']) && isset($options['pos'])) {
+						$i = array_search($options['rid'], $o['info']['pages']);
+						if (isset($o['info']['pages'][$i]) && $o['info']['pages'][$i] == $options['rid']) {
+
+							// then there is a match
+							// make a space
+							switch ($options['pos']) {
+								case 'before':
+									$k = $i;
+									break;
+
+								case 'after':
+									$k = $i + 1;
+									break;
+
+								default:
+									$k = -1;
+									break;
+							}
+
+							if ($k >= 0) {
+								for ($j = count($o['info']['pages']) - 1; $j >= $k; $j--) {
+									$o['info']['pages'][$j + 1] = $o['info']['pages'][$j];
+								}
+
+								$o['info']['pages'][$k] = $options['id'];
+							}
+						}
+					}
+				}
+				break;
+
+			case 'procset':
+				$o['info']['procset'] = $options;
+				break;
+
+			case 'mediaBox':
+				$o['info']['mediaBox'] = $options;
+				// which should be an array of 4 numbers
+				$this->currentPageSize = ['width' => $options[2], 'height' => $options[3]];
+				break;
+
+			case 'font':
+				$o['info']['fonts'][] = ['objNum' => $options['objNum'], 'fontNum' => $options['fontNum']];
+				break;
+
+			case 'extGState':
+				$o['info']['extGStates'][] = ['objNum' => $options['objNum'], 'stateNum' => $options['stateNum']];
+				break;
+
+			case 'xObject':
+				$o['info']['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
+				break;
+
+			case 'out':
+				if (count($o['info']['pages'])) {
+					$res = "\n$id 0 obj\n<< /Type /Pages\n/Kids [";
+					foreach ($o['info']['pages'] as $v) {
+						$res .= "$v 0 R\n";
+					}
+
+					$res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
+
+					if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
+						isset($o['info']['procset']) ||
+						(isset($o['info']['extGStates']) && count($o['info']['extGStates']))
+					) {
+						$res .= "\n/Resources <<";
+
+						if (isset($o['info']['procset'])) {
+							$res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
+						}
+
+						if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
+							$res .= "\n/Font << ";
+							foreach ($o['info']['fonts'] as $finfo) {
+								$res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+							}
+							$res .= "\n>>";
+						}
+
+						if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
+							$res .= "\n/XObject << ";
+							foreach ($o['info']['xObjects'] as $finfo) {
+								$res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+							}
+							$res .= "\n>>";
+						}
+
+						if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
+							$res .= "\n/ExtGState << ";
+							foreach ($o['info']['extGStates'] as $gstate) {
+								$res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
+							}
+							$res .= "\n>>";
+						}
+
+						$res .= "\n>>";
+						if (isset($o['info']['mediaBox'])) {
+							$tmp = $o['info']['mediaBox'];
+							$res .= "\n/MediaBox [" . sprintf(
+									'%.3F %.3F %.3F %.3F',
+									$tmp[0],
+									$tmp[1],
+									$tmp[2],
+									$tmp[3]
+								) . ']';
+						}
+					}
+
+					$res .= "\n >>\nendobj";
+				} else {
+					$res = "\n$id 0 obj\n<< /Type /Pages\n/Count 0\n>>\nendobj";
+				}
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * define the outlines in the doc, empty for now
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_outlines($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'outlines', 'info' => ['outlines' => []]];
+				$this->o_catalog($this->catalogId, 'outlines', $id);
+				break;
+
+			case 'outline':
+				$o['info']['outlines'][] = $options;
+				break;
+
+			case 'out':
+				if (count($o['info']['outlines'])) {
+					$res = "\n$id 0 obj\n<< /Type /Outlines /Kids [";
+					foreach ($o['info']['outlines'] as $v) {
+						$res .= "$v 0 R ";
+					}
+
+					$res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
+				} else {
+					$res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
+				}
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an object to hold the font description
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return string|null
+	 * @throws FontNotFoundException
+	 */
+	protected function o_font($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'font',
+					'info' => [
+						'name'         => $options['name'],
+						'fontFileName' => $options['fontFileName'],
+						'SubType'      => 'Type1',
+						'isSubsetting'   => $options['isSubsetting']
+					]
+				];
+				$fontNum = $this->numFonts;
+				$this->objects[$id]['info']['fontNum'] = $fontNum;
+
+				// deal with the encoding and the differences
+				if (isset($options['differences'])) {
+					// then we'll need an encoding dictionary
+					$this->numObj++;
+					$this->o_fontEncoding($this->numObj, 'new', $options);
+					$this->objects[$id]['info']['encodingDictionary'] = $this->numObj;
+				} else {
+					if (isset($options['encoding'])) {
+						// we can specify encoding here
+						switch ($options['encoding']) {
+							case 'WinAnsiEncoding':
+							case 'MacRomanEncoding':
+							case 'MacExpertEncoding':
+								$this->objects[$id]['info']['encoding'] = $options['encoding'];
+								break;
+
+							case 'none':
+								break;
+
+							default:
+								$this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
+								break;
+						}
+					} else {
+						$this->objects[$id]['info']['encoding'] = 'WinAnsiEncoding';
+					}
+				}
+
+				if ($this->fonts[$options['fontFileName']]['isUnicode']) {
+					// For Unicode fonts, we need to incorporate font data into
+					// sub-sections that are linked from the primary font section.
+					// Look at o_fontGIDtoCID and o_fontDescendentCID functions
+					// for more information.
+					//
+					// All of this code is adapted from the excellent changes made to
+					// transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
+
+					$toUnicodeId = ++$this->numObj;
+					$this->o_toUnicode($toUnicodeId, 'new');
+					$this->objects[$id]['info']['toUnicode'] = $toUnicodeId;
+
+					$cidFontId = ++$this->numObj;
+					$this->o_fontDescendentCID($cidFontId, 'new', $options);
+					$this->objects[$id]['info']['cidFont'] = $cidFontId;
+				}
+
+				// also tell the pages node about the new font
+				$this->o_pages($this->currentNode, 'font', ['fontNum' => $fontNum, 'objNum' => $id]);
+				break;
+
+			case 'add':
+				$font_options = $this->processFont($id, $o['info']);
+
+				if ($font_options !== false) {
+					foreach ($font_options as $k => $v) {
+						switch ($k) {
+							case 'BaseFont':
+								$o['info']['name'] = $v;
+								break;
+							case 'FirstChar':
+							case 'LastChar':
+							case 'Widths':
+							case 'FontDescriptor':
+							case 'SubType':
+								$this->addMessage('o_font ' . $k . " : " . $v);
+								$o['info'][$k] = $v;
+								break;
+						}
+					}
+
+					// pass values down to descendent font
+					if (isset($o['info']['cidFont'])) {
+						$this->o_fontDescendentCID($o['info']['cidFont'], 'add', $font_options);
+					}
+				}
+				break;
+
+			case 'out':
+				if ($this->fonts[$this->objects[$id]['info']['fontFileName']]['isUnicode']) {
+					// For Unicode fonts, we need to incorporate font data into
+					// sub-sections that are linked from the primary font section.
+					// Look at o_fontGIDtoCID and o_fontDescendentCID functions
+					// for more information.
+					//
+					// All of this code is adapted from the excellent changes made to
+					// transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
+
+					$res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
+					$res .= "/BaseFont /" . $o['info']['name'] . "\n";
+
+					// The horizontal identity mapping for 2-byte CIDs; may be used
+					// with CIDFonts using any Registry, Ordering, and Supplement values.
+					$res .= "/Encoding /Identity-H\n";
+					$res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
+					$res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
+					$res .= ">>\n";
+					$res .= "endobj";
+				} else {
+					$res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
+					$res .= "/Name /F" . $o['info']['fontNum'] . "\n";
+					$res .= "/BaseFont /" . $o['info']['name'] . "\n";
+
+					if (isset($o['info']['encodingDictionary'])) {
+						// then place a reference to the dictionary
+						$res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
+					} else {
+						if (isset($o['info']['encoding'])) {
+							// use the specified encoding
+							$res .= "/Encoding /" . $o['info']['encoding'] . "\n";
+						}
+					}
+
+					if (isset($o['info']['FirstChar'])) {
+						$res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
+					}
+
+					if (isset($o['info']['LastChar'])) {
+						$res .= "/LastChar " . $o['info']['LastChar'] . "\n";
+					}
+
+					if (isset($o['info']['Widths'])) {
+						$res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
+					}
+
+					if (isset($o['info']['FontDescriptor'])) {
+						$res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+					}
+
+					$res .= ">>\n";
+					$res .= "endobj";
+				}
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function getFontSubsettingTag(array $font): string
+	{
+		// convert font num to hexavigesimal numeral system letters A - Z only
+		$base_26 = strtoupper(base_convert($font['fontNum'], 10, 26));
+		for ($i = 0; $i < strlen($base_26); $i++) {
+			$char = $base_26[$i];
+			if ($char <= "9") {
+				$base_26[$i] = chr(65 + intval($char));
+			} else {
+				$base_26[$i] = chr(ord($char) + 10);
+			}
+		}
+
+		return 'SUB' . str_pad($base_26, 3, 'A', STR_PAD_LEFT);
+	}
+
+	/**
+	 * @param int $fontObjId
+	 * @param array $object_info
+	 * @return array|false
+	 * @throws FontNotFoundException
+	 */
+	private function processFont(int $fontObjId, array $object_info)
+	{
+		$fontFileName = $object_info['fontFileName'];
+		if (!isset($this->fonts[$fontFileName])) {
+			return false;
+		}
+
+		$font = &$this->fonts[$fontFileName];
+
+		$fileSuffix = $font['fileSuffix'];
+		$fileSuffixLower = strtolower($font['fileSuffix']);
+		$fbfile = "$fontFileName.$fileSuffix";
+		$isTtfFont = $fileSuffixLower === 'ttf';
+		$isPfbFont = $fileSuffixLower === 'pfb';
+
+		$this->addMessage('selectFont: checking for - ' . $fbfile);
+
+		if (!$fileSuffix) {
+			$this->addMessage(
+				'selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts'
+			);
+
+			return false;
+		} else {
+			$adobeFontName = isset($font['PostScriptName']) ? $font['PostScriptName'] : $font['FontName'];
+			//        $fontObj = $this->numObj;
+			$this->addMessage("selectFont: adding font file - $fbfile - $adobeFontName");
+
+			// find the array of font widths, and put that into an object.
+			$firstChar = -1;
+			$lastChar = 0;
+			$widths = [];
+			$cid_widths = [];
+
+			foreach ($font['C'] as $num => $d) {
+				if (intval($num) > 0 || $num == '0') {
+					if (!$font['isUnicode']) {
+						// With Unicode, widths array isn't used
+						if ($lastChar > 0 && $num > $lastChar + 1) {
+							for ($i = $lastChar + 1; $i < $num; $i++) {
+								$widths[] = 0;
+							}
+						}
+					}
+
+					$widths[] = $d;
+
+					if ($font['isUnicode']) {
+						$cid_widths[$num] = $d;
+					}
+
+					if ($firstChar == -1) {
+						$firstChar = $num;
+					}
+
+					$lastChar = $num;
+				}
+			}
+
+			// also need to adjust the widths for the differences array
+			if (isset($object['differences'])) {
+				foreach ($object['differences'] as $charNum => $charName) {
+					if ($charNum > $lastChar) {
+						if (!$object['isUnicode']) {
+							// With Unicode, widths array isn't used
+							for ($i = $lastChar + 1; $i <= $charNum; $i++) {
+								$widths[] = 0;
+							}
+						}
+
+						$lastChar = $charNum;
+					}
+
+					if (isset($font['C'][$charName])) {
+						$widths[$charNum - $firstChar] = $font['C'][$charName];
+						if ($font['isUnicode']) {
+							$cid_widths[$charName] = $font['C'][$charName];
+						}
+					}
+				}
+			}
+
+			if ($font['isUnicode']) {
+				$font['CIDWidths'] = $cid_widths;
+			}
+
+			$this->addMessage('selectFont: FirstChar = ' . $firstChar);
+			$this->addMessage('selectFont: LastChar = ' . $lastChar);
+
+			$widthid = -1;
+
+			if (!$font['isUnicode']) {
+				// With Unicode, widths array isn't used
+
+				$this->numObj++;
+				$this->o_contents($this->numObj, 'new', 'raw');
+				$this->objects[$this->numObj]['c'] .= '[' . implode(' ', $widths) . ']';
+				$widthid = $this->numObj;
+			}
+
+			$missing_width = 500;
+			$stemV = 70;
+
+			if (isset($font['MissingWidth'])) {
+				$missing_width = $font['MissingWidth'];
+			}
+			if (isset($font['StdVW'])) {
+				$stemV = $font['StdVW'];
+			} else {
+				if (isset($font['Weight']) && preg_match('!(bold|black)!i', $font['Weight'])) {
+					$stemV = 120;
+				}
+			}
+
+			// load the pfb file, and put that into an object too.
+			// note that pdf supports only binary format type 1 font files, though there is a
+			// simple utility to convert them from pfa to pfb.
+			if (!$font['isSubsetting']) {
+				$data = file_get_contents($fbfile);
+			} else {
+				$adobeFontName = $this->getFontSubsettingTag($font) . '+' . $adobeFontName;
+				$this->stringSubsets[$fontFileName][] = 32; // Force space if not in yet
+
+				$subset = $this->stringSubsets[$fontFileName];
+				sort($subset);
+
+				// Load font
+				$font_obj = Font::load($fbfile);
+				$font_obj->parse();
+
+				// Define subset
+				$font_obj->setSubset($subset);
+				$font_obj->reduce();
+
+				// Write new font
+				$tmp_name = @tempnam($this->tmp, "cpdf_subset_");
+				$font_obj->open($tmp_name, BinaryStream::modeReadWrite);
+				$font_obj->encode(["OS/2"]);
+				$font_obj->close();
+
+				// Parse the new font to get cid2gid and widths
+				$font_obj = Font::load($tmp_name);
+
+				// Find Unicode char map table
+				$subtable = null;
+				foreach ($font_obj->getData("cmap", "subtables") as $_subtable) {
+					if ($_subtable["platformID"] == 0 || $_subtable["platformID"] == 3 && $_subtable["platformSpecificID"] == 1) {
+						$subtable = $_subtable;
+						break;
+					}
+				}
+
+				if ($subtable) {
+					$glyphIndexArray = $subtable["glyphIndexArray"];
+					$hmtx = $font_obj->getData("hmtx");
+
+					unset($glyphIndexArray[0xFFFF]);
+
+					$cidtogid = str_pad('', max(array_keys($glyphIndexArray)) * 2 + 1, "\x00");
+					$font['CIDWidths'] = [];
+					foreach ($glyphIndexArray as $cid => $gid) {
+						if ($cid >= 0 && $cid < 0xFFFF && $gid) {
+							$cidtogid[$cid * 2] = chr($gid >> 8);
+							$cidtogid[$cid * 2 + 1] = chr($gid & 0xFF);
+						}
+
+						$width = $font_obj->normalizeFUnit(isset($hmtx[$gid]) ? $hmtx[$gid][0] : $hmtx[0][0]);
+						$font['CIDWidths'][$cid] = $width;
+					}
+
+					$font['CIDtoGID'] = base64_encode(gzcompress($cidtogid));
+					$font['CIDtoGID_Compressed'] = true;
+
+					$data = file_get_contents($tmp_name);
+				} else {
+					$data = file_get_contents($fbfile);
+				}
+
+				$font_obj->close();
+				unlink($tmp_name);
+			}
+
+			// create the font descriptor
+			$this->numObj++;
+			$fontDescriptorId = $this->numObj;
+
+			$this->numObj++;
+			$pfbid = $this->numObj;
+
+			// determine flags (more than a little flakey, hopefully will not matter much)
+			$flags = 0;
+
+			if ($font['ItalicAngle'] != 0) {
+				$flags += pow(2, 6);
+			}
+
+			if ($font['IsFixedPitch'] === 'true') {
+				$flags += 1;
+			}
+
+			$flags += pow(2, 5); // assume non-sybolic
+			$list = [
+				'Ascent'       => 'Ascender',
+				'CapHeight'    => 'Ascender', //FIXME: php-font-lib is not grabbing this value, so we'll fake it and use the Ascender value // 'CapHeight'
+				'MissingWidth' => 'MissingWidth',
+				'Descent'      => 'Descender',
+				'FontBBox'     => 'FontBBox',
+				'ItalicAngle'  => 'ItalicAngle'
+			];
+			$fdopt = [
+				'Flags'    => $flags,
+				'FontName' => $adobeFontName,
+				'StemV'    => $stemV
+			];
+
+			foreach ($list as $k => $v) {
+				if (isset($font[$v])) {
+					$fdopt[$k] = $font[$v];
+				}
+			}
+
+			if ($isPfbFont) {
+				$fdopt['FontFile'] = $pfbid;
+			} elseif ($isTtfFont) {
+				$fdopt['FontFile2'] = $pfbid;
+			}
+
+			$this->o_fontDescriptor($fontDescriptorId, 'new', $fdopt);
+
+			// embed the font program
+			$this->o_contents($this->numObj, 'new');
+			$this->objects[$pfbid]['c'] .= $data;
+
+			// determine the cruicial lengths within this file
+			if ($isPfbFont) {
+				$l1 = strpos($data, 'eexec') + 6;
+				$l2 = strpos($data, '00000000') - $l1;
+				$l3 = mb_strlen($data, '8bit') - $l2 - $l1;
+				$this->o_contents(
+					$this->numObj,
+					'add',
+					['Length1' => $l1, 'Length2' => $l2, 'Length3' => $l3]
+				);
+			} elseif ($isTtfFont) {
+				$l1 = mb_strlen($data, '8bit');
+				$this->o_contents($this->numObj, 'add', ['Length1' => $l1]);
+			}
+
+			// tell the font object about all this new stuff
+			$options = [
+				'BaseFont'       => $adobeFontName,
+				'MissingWidth'   => $missing_width,
+				'Widths'         => $widthid,
+				'FirstChar'      => $firstChar,
+				'LastChar'       => $lastChar,
+				'FontDescriptor' => $fontDescriptorId
+			];
+
+			if ($isTtfFont) {
+				$options['SubType'] = 'TrueType';
+			}
+
+			$this->addMessage("adding extra info to font.($fontObjId)");
+
+			foreach ($options as $fk => $fv) {
+				$this->addMessage("$fk : $fv");
+			}
+		}
+
+		return $options;
+	}
+
+	/**
+	 * A toUnicode section, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @return null|string
+	 */
+	protected function o_toUnicode($id, $action)
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'toUnicode'
+				];
+				break;
+			case 'add':
+				break;
+			case 'out':
+				$ordering = 'UCS';
+				$registry = 'Adobe';
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$ordering = $this->ARC4($ordering);
+					$registry = $this->filterText($this->ARC4($registry), false, false);
+				}
+
+				$stream = <<<EOT
 /CIDInit /ProcSet findresource begin
 12 dict begin
 begincmap
@@ -1370,5132 +1370,5132 @@ 
 end
 EOT;
 
-                $res = "\n$id 0 obj\n";
-                $res .= "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
-                $res .= "stream\n" . $stream . "\nendstream" . "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a font descriptor, needed for including additional fonts
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_fontDescriptor($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'fontDescriptor', 'info' => $options];
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /FontDescriptor\n";
-                foreach ($o['info'] as $label => $value) {
-                    switch ($label) {
-                        case 'Ascent':
-                        case 'CapHeight':
-                        case 'Descent':
-                        case 'Flags':
-                        case 'ItalicAngle':
-                        case 'StemV':
-                        case 'AvgWidth':
-                        case 'Leading':
-                        case 'MaxWidth':
-                        case 'MissingWidth':
-                        case 'StemH':
-                        case 'XHeight':
-                        case 'CharSet':
-                            if (mb_strlen($value, '8bit')) {
-                                $res .= "/$label $value\n";
-                            }
-
-                            break;
-                        case 'FontFile':
-                        case 'FontFile2':
-                        case 'FontFile3':
-                            $res .= "/$label $value 0 R\n";
-                            break;
-
-                        case 'FontBBox':
-                            $res .= "/$label [$value[0] $value[1] $value[2] $value[3]]\n";
-                            break;
-
-                        case 'FontName':
-                            $res .= "/$label /$value\n";
-                            break;
-                    }
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * the font encoding
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_fontEncoding($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                // the options array should contain 'differences' and maybe 'encoding'
-                $this->objects[$id] = ['t' => 'fontEncoding', 'info' => $options];
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Encoding\n";
-                if (!isset($o['info']['encoding'])) {
-                    $o['info']['encoding'] = 'WinAnsiEncoding';
-                }
-
-                if ($o['info']['encoding'] !== 'none') {
-                    $res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
-                }
-
-                $res .= "/Differences \n[";
-
-                $onum = -100;
-
-                foreach ($o['info']['differences'] as $num => $label) {
-                    if ($num != $onum + 1) {
-                        // we cannot make use of consecutive numbering
-                        $res .= "\n$num /$label";
-                    } else {
-                        $res .= " /$label";
-                    }
-
-                    $onum = $num;
-                }
-
-                $res .= "\n]\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a descendent cid font, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return null|string
-     */
-    protected function o_fontDescendentCID($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'fontDescendentCID', 'info' => $options];
-
-                // we need a CID system info section
-                $cidSystemInfoId = ++$this->numObj;
-                $this->o_cidSystemInfo($cidSystemInfoId, 'new');
-                $this->objects[$id]['info']['cidSystemInfo'] = $cidSystemInfoId;
-
-                // and a CID to GID map
-                $cidToGidMapId = ++$this->numObj;
-                $this->o_fontGIDtoCIDMap($cidToGidMapId, 'new', $options);
-                $this->objects[$id]['info']['cidToGidMap'] = $cidToGidMapId;
-                break;
-
-            case 'add':
-                foreach ($options as $k => $v) {
-                    switch ($k) {
-                        case 'BaseFont':
-                            $o['info']['name'] = $v;
-                            break;
-
-                        case 'FirstChar':
-                        case 'LastChar':
-                        case 'MissingWidth':
-                        case 'FontDescriptor':
-                        case 'SubType':
-                            $this->addMessage("o_fontDescendentCID $k : $v");
-                            $o['info'][$k] = $v;
-                            break;
-                    }
-                }
-
-                // pass values down to cid to gid map
-                $this->o_fontGIDtoCIDMap($o['info']['cidToGidMap'], 'add', $options);
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n";
-                $res .= "<</Type /Font\n";
-                $res .= "/Subtype /CIDFontType2\n";
-                $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-                $res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
-                //      if (isset($o['info']['FirstChar'])) {
-                //        $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
-                //      }
-
-                //      if (isset($o['info']['LastChar'])) {
-                //        $res.= "/LastChar ".$o['info']['LastChar']."\n";
-                //      }
-                if (isset($o['info']['FontDescriptor'])) {
-                    $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
-                }
-
-                if (isset($o['info']['MissingWidth'])) {
-                    $res .= "/DW " . $o['info']['MissingWidth'] . "\n";
-                }
-
-                if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
-                    $cid_widths = &$this->fonts[$o['info']['fontFileName']]['CIDWidths'];
-                    $w = '';
-                    foreach ($cid_widths as $cid => $width) {
-                        $w .= "$cid [$width] ";
-                    }
-                    $res .= "/W [$w]\n";
-                }
-
-                $res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
-                $res .= ">>\n";
-                $res .= "endobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * CID system info section, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @return null|string
-     */
-    protected function o_cidSystemInfo($id, $action)
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't' => 'cidSystemInfo'
-                ];
-                break;
-            case 'add':
-                break;
-            case 'out':
-                $ordering = 'UCS';
-                $registry = 'Adobe';
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $ordering = $this->ARC4($ordering);
-                    $registry = $this->ARC4($registry);
-                }
-
-
-                $res = "\n$id 0 obj\n";
-
-                $res .= '<</Registry (' . $registry . ")\n"; // A string identifying an issuer of character collections
-                $res .= '/Ordering (' . $ordering . ")\n"; // A string that uniquely names a character collection issued by a specific registry
-                $res .= "/Supplement 0\n"; // The supplement number of the character collection.
-                $res .= ">>";
-
-                $res .= "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a font glyph to character map, needed for unicode fonts
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_fontGIDtoCIDMap($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'fontGIDtoCIDMap', 'info' => $options];
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n";
-                $fontFileName = $o['info']['fontFileName'];
-                $tmp = $this->fonts[$fontFileName]['CIDtoGID'] = base64_decode($this->fonts[$fontFileName]['CIDtoGID']);
-
-                $compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
-                    $this->fonts[$fontFileName]['CIDtoGID_Compressed'];
-
-                if (!$compressed && isset($o['raw'])) {
-                    $res .= $tmp;
-                } else {
-                    $res .= "<<";
-
-                    if (!$compressed && $this->compressionReady && $this->options['compression']) {
-                        // then implement ZLIB based compression on this content stream
-                        $compressed = true;
-                        $tmp = gzcompress($tmp, 6);
-                    }
-                    if ($compressed) {
-                        $res .= "\n/Filter /FlateDecode";
-                    }
-
-                    if ($this->encrypted) {
-                        $this->encryptInit($id);
-                        $tmp = $this->ARC4($tmp);
-                    }
-
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
-                }
-
-                $res .= "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * the document procset, solves some problems with printing to old PS printers
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_procset($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'procset', 'info' => ['PDF' => 1, 'Text' => 1]];
-                $this->o_pages($this->currentNode, 'procset', $id);
-                $this->procsetObjectId = $id;
-                break;
-
-            case 'add':
-                // this is to add new items to the procset list, despite the fact that this is considered
-                // obsolete, the items are required for printing to some postscript printers
-                switch ($options) {
-                    case 'ImageB':
-                    case 'ImageC':
-                    case 'ImageI':
-                        $o['info'][$options] = 1;
-                        break;
-                }
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n[";
-                foreach ($o['info'] as $label => $val) {
-                    $res .= "/$label ";
-                }
-                $res .= "]\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * define the document information
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_info($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->infoObject = $id;
-                $date = 'D:' . @date('Ymd');
-                $this->objects[$id] = [
-                    't'    => 'info',
-                    'info' => [
-                        'Producer'      => 'CPDF (dompdf)',
-                        'CreationDate' => $date
-                    ]
-                ];
-                break;
-            case 'Title':
-            case 'Author':
-            case 'Subject':
-            case 'Keywords':
-            case 'Creator':
-            case 'Producer':
-            case 'CreationDate':
-            case 'ModDate':
-            case 'Trapped':
-                $this->objects[$id]['info'][$action] = $options;
-                break;
-
-            case 'out':
-                $encrypted = $this->encrypted;
-                if ($encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                $res = "\n$id 0 obj\n<<\n";
-                $o = &$this->objects[$id];
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "/$k (";
-
-                    // dates must be outputted as-is, without Unicode transformations
-                    if ($k !== 'CreationDate' && $k !== 'ModDate') {
-                        $v = $this->utf8toUtf16BE($v);
-                    }
-
-                    if ($encrypted) {
-                        $v = $this->ARC4($v);
-                    }
-
-                    $res .= $this->filterText($v, false, false);
-                    $res .= ")\n";
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an action object, used to link to URLS initially
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_action($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                if (is_array($options)) {
-                    $this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => $options['type']];
-                } else {
-                    // then assume a URI action
-                    $this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => 'URI'];
-                }
-                break;
-
-            case 'out':
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                $res = "\n$id 0 obj\n<< /Type /Action";
-                switch ($o['type']) {
-                    case 'ilink':
-                        if (!isset($this->destinations[(string)$o['info']['label']])) {
-                            break;
-                        }
-
-                        // there will be an 'label' setting, this is the name of the destination
-                        $res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
-                        break;
-
-                    case 'URI':
-                        $res .= "\n/S /URI\n/URI (";
-                        if ($this->encrypted) {
-                            $res .= $this->filterText($this->ARC4($o['info']), false, false);
-                        } else {
-                            $res .= $this->filterText($o['info'], false, false);
-                        }
-
-                        $res .= ")";
-                        break;
-                }
-
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an annotation object, this will add an annotation to the current page.
-     * initially will support just link annotations
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_annotation($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                // add the annotation to the current page
-                $pageId = $this->currentPage;
-                $this->o_page($pageId, 'annot', $id);
-
-                // and add the action object which is going to be required
-                switch ($options['type']) {
-                    case 'link':
-                        $this->objects[$id] = ['t' => 'annotation', 'info' => $options];
-                        $this->numObj++;
-                        $this->o_action($this->numObj, 'new', $options['url']);
-                        $this->objects[$id]['info']['actionId'] = $this->numObj;
-                        break;
-
-                    case 'ilink':
-                        // this is to a named internal link
-                        $label = $options['label'];
-                        $this->objects[$id] = ['t' => 'annotation', 'info' => $options];
-                        $this->numObj++;
-                        $this->o_action($this->numObj, 'new', ['type' => 'ilink', 'label' => $label]);
-                        $this->objects[$id]['info']['actionId'] = $this->numObj;
-                        break;
-                }
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Annot";
-                switch ($o['info']['type']) {
-                    case 'link':
-                    case 'ilink':
-                        $res .= "\n/Subtype /Link";
-                        break;
-                }
-                $res .= "\n/A " . $o['info']['actionId'] . " 0 R";
-                $res .= "\n/Border [0 0 0]";
-                $res .= "\n/H /I";
-                $res .= "\n/Rect [ ";
-
-                foreach ($o['info']['rect'] as $v) {
-                    $res .= sprintf("%.4F ", $v);
-                }
-
-                $res .= "]";
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * a page object, it also creates a contents object to hold its contents
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_page($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->numPages++;
-                $this->objects[$id] = [
-                    't'    => 'page',
-                    'info' => [
-                        'parent'  => $this->currentNode,
-                        'pageNum' => $this->numPages,
-                        'mediaBox' => $this->objects[$this->currentNode]['info']['mediaBox']
-                    ]
-                ];
-
-                if (is_array($options)) {
-                    // then this must be a page insertion, array should contain 'rid','pos'=[before|after]
-                    $options['id'] = $id;
-                    $this->o_pages($this->currentNode, 'page', $options);
-                } else {
-                    $this->o_pages($this->currentNode, 'page', $id);
-                }
-
-                $this->currentPage = $id;
-                //make a contents object to go with this page
-                $this->numObj++;
-                $this->o_contents($this->numObj, 'new', $id);
-                $this->currentContents = $this->numObj;
-                $this->objects[$id]['info']['contents'] = [];
-                $this->objects[$id]['info']['contents'][] = $this->numObj;
-
-                $match = ($this->numPages % 2 ? 'odd' : 'even');
-                foreach ($this->addLooseObjects as $oId => $target) {
-                    if ($target === 'all' || $match === $target) {
-                        $this->objects[$id]['info']['contents'][] = $oId;
-                    }
-                }
-                break;
-
-            case 'content':
-                $o['info']['contents'][] = $options;
-                break;
-
-            case 'annot':
-                // add an annotation to this page
-                if (!isset($o['info']['annot'])) {
-                    $o['info']['annot'] = [];
-                }
-
-                // $options should contain the id of the annotation dictionary
-                $o['info']['annot'][] = $options;
-                break;
-
-            case 'out':
-                $res = "\n$id 0 obj\n<< /Type /Page";
-                if (isset($o['info']['mediaBox'])) {
-                    $tmp = $o['info']['mediaBox'];
-                    $res .= "\n/MediaBox [" . sprintf(
-                            '%.3F %.3F %.3F %.3F',
-                            $tmp[0],
-                            $tmp[1],
-                            $tmp[2],
-                            $tmp[3]
-                        ) . ']';
-                }
-                $res .= "\n/Parent " . $o['info']['parent'] . " 0 R";
-
-                if (isset($o['info']['annot'])) {
-                    $res .= "\n/Annots [";
-                    foreach ($o['info']['annot'] as $aId) {
-                        $res .= " $aId 0 R";
-                    }
-                    $res .= " ]";
-                }
-
-                $count = count($o['info']['contents']);
-                if ($count == 1) {
-                    $res .= "\n/Contents " . $o['info']['contents'][0] . " 0 R";
-                } else {
-                    if ($count > 1) {
-                        $res .= "\n/Contents [\n";
-
-                        // reverse the page contents so added objects are below normal content
-                        //foreach (array_reverse($o['info']['contents']) as $cId) {
-                        // Back to normal now that I've got transparency working --Benj
-                        foreach ($o['info']['contents'] as $cId) {
-                            $res .= "$cId 0 R\n";
-                        }
-                        $res .= "]";
-                    }
-                }
-
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * the contents objects hold all of the content which appears on pages
-     *
-     * @param $id
-     * @param $action
-     * @param string|array $options
-     * @return null|string
-     */
-    protected function o_contents($id, $action, $options = '')
-    {
-        if ($action !== 'new') {
-            $o = &$this->objects[$id];
-        }
-
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'contents', 'c' => '', 'info' => []];
-                if (mb_strlen($options, '8bit') && intval($options)) {
-                    // then this contents is the primary for a page
-                    $this->objects[$id]['onPage'] = $options;
-                } else {
-                    if ($options === 'raw') {
-                        // then this page contains some other type of system object
-                        $this->objects[$id]['raw'] = 1;
-                    }
-                }
-                break;
-
-            case 'add':
-                // add more options to the declaration
-                foreach ($options as $k => $v) {
-                    $o['info'][$k] = $v;
-                }
-
-            case 'out':
-                $tmp = $o['c'];
-                $res = "\n$id 0 obj\n";
-
-                if (isset($this->objects[$id]['raw'])) {
-                    $res .= $tmp;
-                } else {
-                    $res .= "<<";
-                    if ($this->compressionReady && $this->options['compression']) {
-                        // then implement ZLIB based compression on this content stream
-                        $res .= " /Filter /FlateDecode";
-                        $tmp = gzcompress($tmp, 6);
-                    }
-
-                    if ($this->encrypted) {
-                        $this->encryptInit($id);
-                        $tmp = $this->ARC4($tmp);
-                    }
-
-                    foreach ($o['info'] as $k => $v) {
-                        $res .= "\n/$k $v";
-                    }
-
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . " >>\nstream\n$tmp\nendstream";
-                }
-
-                $res .= "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @return string|null
-     */
-    protected function o_embedjs($id, $action)
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'embedjs',
-                    'info' => [
-                        'Names' => '[(EmbeddedJS) ' . ($id + 1) . ' 0 R]'
-                    ]
-                ];
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< ";
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "\n/$k $v";
-                }
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @param string $code
-     * @return null|string
-     */
-    protected function o_javascript($id, $action, $code = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = [
-                    't'    => 'javascript',
-                    'info' => [
-                        'S'  => '/JavaScript',
-                        'JS' => '(' . $this->filterText($code, true, false) . ')',
-                    ]
-                ];
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< ";
-
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "\n/$k $v";
-                }
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * an image object, will be an XObject in the document, includes description and data
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_image($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                // make the new object
-                $this->objects[$id] = ['t' => 'image', 'data' => &$options['data'], 'info' => []];
-
-                $info =& $this->objects[$id]['info'];
-
-                $info['Type'] = '/XObject';
-                $info['Subtype'] = '/Image';
-                $info['Width'] = $options['iw'];
-                $info['Height'] = $options['ih'];
-
-                if (isset($options['masked']) && $options['masked']) {
-                    $info['SMask'] = ($this->numObj - 1) . ' 0 R';
-                }
-
-                if (!isset($options['type']) || $options['type'] === 'jpg') {
-                    if (!isset($options['channels'])) {
-                        $options['channels'] = 3;
-                    }
-
-                    switch ($options['channels']) {
-                        case 1:
-                            $info['ColorSpace'] = '/DeviceGray';
-                            break;
-                        case 4:
-                            $info['ColorSpace'] = '/DeviceCMYK';
-                            break;
-                        default:
-                            $info['ColorSpace'] = '/DeviceRGB';
-                            break;
-                    }
-
-                    if ($info['ColorSpace'] === '/DeviceCMYK') {
-                        $info['Decode'] = '[1 0 1 0 1 0 1 0]';
-                    }
-
-                    $info['Filter'] = '/DCTDecode';
-                    $info['BitsPerComponent'] = 8;
-                } else {
-                    if ($options['type'] === 'png') {
-                        $info['Filter'] = '/FlateDecode';
-                        $info['DecodeParms'] = '<< /Predictor 15 /Colors ' . $options['ncolor'] . ' /Columns ' . $options['iw'] . ' /BitsPerComponent ' . $options['bitsPerComponent'] . '>>';
-
-                        if ($options['isMask']) {
-                            $info['ColorSpace'] = '/DeviceGray';
-                        } else {
-                            if (mb_strlen($options['pdata'], '8bit')) {
-                                $tmp = ' [ /Indexed /DeviceRGB ' . (mb_strlen($options['pdata'], '8bit') / 3 - 1) . ' ';
-                                $this->numObj++;
-                                $this->o_contents($this->numObj, 'new');
-                                $this->objects[$this->numObj]['c'] = $options['pdata'];
-                                $tmp .= $this->numObj . ' 0 R';
-                                $tmp .= ' ]';
-                                $info['ColorSpace'] = $tmp;
-
-                                if (isset($options['transparency'])) {
-                                    $transparency = $options['transparency'];
-                                    switch ($transparency['type']) {
-                                        case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-
-                                        case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] .
-                                                $transparency['g'] . ' ' . $transparency['g'] .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
-                                                ' ] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-                                    }
-                                }
-                            } else {
-                                if (isset($options['transparency'])) {
-                                    $transparency = $options['transparency'];
-
-                                    switch ($transparency['type']) {
-                                        case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-
-                                        case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] . ' ' .
-                                                $transparency['g'] . ' ' . $transparency['g'] . ' ' .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
-                                                ' ] ';
-                                            $info['Mask'] = $tmp;
-                                            break;
-                                    }
-                                }
-                                $info['ColorSpace'] = '/' . $options['color'];
-                            }
-                        }
-
-                        $info['BitsPerComponent'] = $options['bitsPerComponent'];
-                    }
-                }
-
-                // assign it a place in the named resource dictionary as an external object, according to
-                // the label passed in with it.
-                $this->o_pages($this->currentNode, 'xObject', ['label' => $options['label'], 'objNum' => $id]);
-
-                // also make sure that we have the right procset object for it.
-                $this->o_procset($this->procsetObjectId, 'add', 'ImageC');
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $tmp = &$o['data'];
-                $res = "\n$id 0 obj\n<<";
-
-                foreach ($o['info'] as $k => $v) {
-                    $res .= "\n/$k $v";
-                }
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $tmp = $this->ARC4($tmp);
-                }
-
-                $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * graphics state object
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_extGState($id, $action, $options = "")
-    {
-        static $valid_params = [
-            "LW",
-            "LC",
-            "LC",
-            "LJ",
-            "ML",
-            "D",
-            "RI",
-            "OP",
-            "op",
-            "OPM",
-            "Font",
-            "BG",
-            "BG2",
-            "UCR",
-            "TR",
-            "TR2",
-            "HT",
-            "FL",
-            "SM",
-            "SA",
-            "BM",
-            "SMask",
-            "CA",
-            "ca",
-            "AIS",
-            "TK"
-        ];
-
-        switch ($action) {
-            case "new":
-                $this->objects[$id] = ['t' => 'extGState', 'info' => $options];
-
-                // Tell the pages about the new resource
-                $this->numStates++;
-                $this->o_pages($this->currentNode, 'extGState', ["objNum" => $id, "stateNum" => $this->numStates]);
-                break;
-
-            case "out":
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< /Type /ExtGState\n";
-
-                foreach ($o["info"] as $k => $v) {
-                    if (!in_array($k, $valid_params)) {
-                        continue;
-                    }
-                    $res .= "/$k $v\n";
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param integer $id
-     * @param string $action
-     * @param mixed $options
-     * @return string
-     */
-    protected function o_xobject($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'xobject', 'info' => $options, 'c' => ''];
-                break;
-
-            case 'procset':
-                $this->objects[$id]['procset'] = $options;
-                break;
-
-            case 'font':
-                $this->objects[$id]['fonts'][$options['fontNum']] = [
-                  'objNum' => $options['objNum'],
-                  'fontNum' => $options['fontNum']
-                ];
-                break;
-
-            case 'xObject':
-                $this->objects[$id]['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< /Type /XObject\n";
-
-                foreach ($o["info"] as $k => $v) {
-                    switch ($k) {
-                        case 'Subtype':
-                            $res .= "/Subtype /$v\n";
-                            break;
-                        case 'bbox':
-                            $res .= "/BBox [";
-                            foreach ($v as $value) {
-                                $res .= sprintf("%.4F ", $value);
-                            }
-                            $res .= "]\n";
-                            break;
-                        default:
-                            $res .= "/$k $v\n";
-                            break;
-                    }
-                }
-                $res .= "/Matrix[1.0 0.0 0.0 1.0 0.0 0.0]\n";
-
-                $res .= "/Resources <<";
-                if (isset($o['procset'])) {
-                    $res .= "\n/ProcSet " . $o['procset'] . " 0 R";
-                } else {
-                    $res .= "\n/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]";
-                }
-                if (isset($o['fonts']) && count($o['fonts'])) {
-                    $res .= "\n/Font << ";
-                    foreach ($o['fonts'] as $finfo) {
-                        $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
-                    }
-                    $res .= "\n>>";
-                }
-                if (isset($o['xObjects']) && count($o['xObjects'])) {
-                    $res .= "\n/XObject << ";
-                    foreach ($o['xObjects'] as $finfo) {
-                        $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
-                    }
-                    $res .= "\n>>";
-                }
-                $res .= "\n>>\n";
-
-                $tmp = $o["c"];
-                if ($this->compressionReady && $this->options['compression']) {
-                    // then implement ZLIB based compression on this content stream
-                    $res .= " /Filter /FlateDecode\n";
-                    $tmp = gzcompress($tmp, 6);
-                }
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $tmp = $this->ARC4($tmp);
-                }
-
-                $res .= "/Length " . mb_strlen($tmp, '8bit') . " >>\n";
-                $res .= "stream\n" . $tmp . "\nendstream" . "\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_acroform($id, $action, $options = '')
-    {
-        switch ($action) {
-            case "new":
-                $this->o_catalog($this->catalogId, 'acroform', $id);
-                $this->objects[$id] = array('t' => 'acroform', 'info' => $options);
-                break;
-
-            case 'addfield':
-                $this->objects[$id]['info']['Fields'][] = $options;
-                break;
-
-            case 'font':
-                $this->objects[$id]['fonts'][$options['fontNum']] = [
-                  'objNum' => $options['objNum'],
-                  'fontNum' => $options['fontNum']
-                ];
-                break;
-
-            case "out":
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<<";
-
-                foreach ($o["info"] as $k => $v) {
-                    switch ($k) {
-                        case 'Fields':
-                            $res .= " /Fields [";
-                            foreach ($v as $i) {
-                                $res .= "$i 0 R ";
-                            }
-                            $res .= "]\n";
-                            break;
-                        default:
-                            $res .= "/$k $v\n";
-                    }
-                }
-
-                $res .= "/DR <<\n";
-                if (isset($o['fonts']) && count($o['fonts'])) {
-                    $res .= "/Font << \n";
-                    foreach ($o['fonts'] as $finfo) {
-                        $res .= "/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R\n";
-                    }
-                    $res .= ">>\n";
-                }
-                $res .= ">>\n";
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * @param $id
-     * @param $action
-     * @param mixed $options
-     * @return null|string
-     */
-    protected function o_field($id, $action, $options = '')
-    {
-        switch ($action) {
-            case "new":
-                $this->o_page($options['pageid'], 'annot', $id);
-                $this->o_acroform($this->acroFormId, 'addfield', $id);
-                $this->objects[$id] = ['t' => 'field', 'info' => $options];
-                break;
-
-            case 'set':
-                $this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
-                break;
-
-            case "out":
-                $o = &$this->objects[$id];
-                $res = "\n$id 0 obj\n<< /Type /Annot /Subtype /Widget \n";
-
-                $encrypted = $this->encrypted;
-                if ($encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                foreach ($o["info"] as $k => $v) {
-                    switch ($k) {
-                        case 'pageid':
-                            $res .= "/P $v 0 R\n";
-                            break;
-                        case 'value':
-                            if ($encrypted) {
-                                $v = $this->filterText($this->ARC4($v), false, false);
-                            }
-                            $res .= "/V ($v)\n";
-                            break;
-                        case 'refvalue':
-                            $res .= "/V $v 0 R\n";
-                            break;
-                        case 'da':
-                            if ($encrypted) {
-                                $v = $this->filterText($this->ARC4($v), false, false);
-                            }
-                            $res .= "/DA ($v)\n";
-                            break;
-                        case 'options':
-                            $res .= "/Opt [\n";
-                            foreach ($v as $opt) {
-                                if ($encrypted) {
-                                    $opt = $this->filterText($this->ARC4($opt), false, false);
-                                }
-                                $res .= "($opt)\n";
-                            }
-                            $res .= "]\n";
-                            break;
-                        case 'rect':
-                            $res .= "/Rect [";
-                            foreach ($v as $value) {
-                                $res .= sprintf("%.4F ", $value);
-                            }
-                            $res .= "]\n";
-                            break;
-                        case 'appearance':
-                            $res .= "/AP << ";
-                            foreach ($v as $a => $ref) {
-                                $res .= "/$a $ref 0 R ";
-                            }
-                            $res .= ">>\n";
-                            break;
-                        case 'T':
-                            if ($encrypted) {
-                                $v = $this->filterText($this->ARC4($v), false, false);
-                            }
-                            $res .= "/T ($v)\n";
-                            break;
-                        default:
-                            $res .= "/$k $v\n";
-                    }
-
-                }
-
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return null|string
-     */
-    protected function o_sig($id, $action, $options = '')
-    {
-        $sign_maxlen = $this->signatureMaxLen;
-
-        switch ($action) {
-            case "new":
-                $this->objects[$id] = array('t' => 'sig', 'info' => $options);
-                $this->byteRange[$id] = ['t' => 'sig'];
-                break;
-
-            case 'byterange':
-                $o = &$this->objects[$id];
-                $content =& $options['content'];
-                $content_len = strlen($content);
-                $pos = strpos($content, sprintf("/ByteRange [ %'.010d", $id));
-                $len = strlen('/ByteRange [ ********** ********** ********** ********** ]');
-                $rangeStartPos = $pos + $len + 1 + 10; // before '<'
-                $content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos), $len, ' ', STR_PAD_RIGHT), $pos, $len);
-
-                $fuid = uniqid();
-                $tmpInput = $this->tmp . "/pkcs7.tmp." . $fuid . '.in';
-                $tmpOutput = $this->tmp . "/pkcs7.tmp." . $fuid . '.out';
-
-                if (file_put_contents($tmpInput, substr($content, 0, $rangeStartPos)) === false) {
-                    throw new \Exception("Unable to write temporary file for signing.");
-                }
-                if (file_put_contents($tmpInput, substr($content, $rangeStartPos + 2 + $sign_maxlen),
-                    FILE_APPEND) === false) {
-                    throw new \Exception("Unable to write temporary file for signing.");
-                }
-
-                if (openssl_pkcs7_sign($tmpInput, $tmpOutput,
-                    $o['info']['SignCert'],
-                    array($o['info']['PrivKey'], $o['info']['Password']),
-                    array(), PKCS7_BINARY | PKCS7_DETACHED) === false) {
-                    throw new \Exception("Failed to prepare signature.");
-                }
-
-                $signature = file_get_contents($tmpOutput);
-
-                unlink($tmpInput);
-                unlink($tmpOutput);
-
-                $sign = substr($signature, (strpos($signature, "%%EOF\n\n------") + 13));
-                list($head, $signature) = explode("\n\n", $sign);
-
-                $signature = base64_decode(trim($signature));
-
-                $signature = current(unpack('H*', $signature));
-                $signature = str_pad($signature, $sign_maxlen, '0');
-                $siglen = strlen($signature);
-                if (strlen($signature) > $sign_maxlen) {
-                    throw new \Exception("Signature length ($siglen) exceeds the $sign_maxlen limit.");
-                }
-
-                $content = substr_replace($content, $signature, $rangeStartPos + 1, $sign_maxlen);
-                break;
-
-            case "out":
-                $res = "\n$id 0 obj\n<<\n";
-
-                $encrypted = $this->encrypted;
-                if ($encrypted) {
-                    $this->encryptInit($id);
-                }
-
-                $res .= "/ByteRange " .sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
-                $res .= "/Contents <" . str_pad('', $sign_maxlen, '0') . ">\n";
-                $res .= "/Filter/Adobe.PPKLite\n"; //PPKMS \n";
-                $res .= "/Type/Sig/SubFilter/adbe.pkcs7.detached \n";
-
-                $date = "D:" . substr_replace(date('YmdHisO'), '\'', -2, 0) . '\'';
-                if ($encrypted) {
-                    $date = $this->ARC4($date);
-                }
-
-                $res .= "/M ($date)\n";
-                $res .= "/Prop_Build << /App << /Name /DomPDF >> /Filter << /Name /Adobe.PPKLite >> >>\n";
-
-                $o = &$this->objects[$id];
-                foreach ($o['info'] as $k => $v) {
-                    switch ($k) {
-                        case 'Name':
-                        case 'Location':
-                        case 'Reason':
-                        case 'ContactInfo':
-                            if ($v !== null && $v !== '') {
-                                $res .= "/$k (" .
-                                  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v) . ") \n";
-                            }
-                            break;
-                    }
-                }
-                $res .= ">>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * encryption object.
-     *
-     * @param $id
-     * @param $action
-     * @param string $options
-     * @return string|null
-     */
-    protected function o_encryption($id, $action, $options = '')
-    {
-        switch ($action) {
-            case 'new':
-                // make the new object
-                $this->objects[$id] = ['t' => 'encryption', 'info' => $options];
-                $this->arc4_objnum = $id;
-                break;
-
-            case 'keys':
-                // figure out the additional parameters required
-                $pad = chr(0x28) . chr(0xBF) . chr(0x4E) . chr(0x5E) . chr(0x4E) . chr(0x75) . chr(0x8A) . chr(0x41)
-                    . chr(0x64) . chr(0x00) . chr(0x4E) . chr(0x56) . chr(0xFF) . chr(0xFA) . chr(0x01) . chr(0x08)
-                    . chr(0x2E) . chr(0x2E) . chr(0x00) . chr(0xB6) . chr(0xD0) . chr(0x68) . chr(0x3E) . chr(0x80)
-                    . chr(0x2F) . chr(0x0C) . chr(0xA9) . chr(0xFE) . chr(0x64) . chr(0x53) . chr(0x69) . chr(0x7A);
-
-                $info = $this->objects[$id]['info'];
-
-                $len = mb_strlen($info['owner'], '8bit');
-
-                if ($len > 32) {
-                    $owner = substr($info['owner'], 0, 32);
-                } else {
-                    if ($len < 32) {
-                        $owner = $info['owner'] . substr($pad, 0, 32 - $len);
-                    } else {
-                        $owner = $info['owner'];
-                    }
-                }
-
-                $len = mb_strlen($info['user'], '8bit');
-                if ($len > 32) {
-                    $user = substr($info['user'], 0, 32);
-                } else {
-                    if ($len < 32) {
-                        $user = $info['user'] . substr($pad, 0, 32 - $len);
-                    } else {
-                        $user = $info['user'];
-                    }
-                }
-
-                $tmp = $this->md5_16($owner);
-                $okey = substr($tmp, 0, 5);
-                $this->ARC4_init($okey);
-                $ovalue = $this->ARC4($user);
-                $this->objects[$id]['info']['O'] = $ovalue;
-
-                // now make the u value, phew.
-                $tmp = $this->md5_16(
-                    $user . $ovalue . chr($info['p']) . chr(255) . chr(255) . chr(255) . hex2bin($this->fileIdentifier)
-                );
-
-                $ukey = substr($tmp, 0, 5);
-                $this->ARC4_init($ukey);
-                $this->encryptionKey = $ukey;
-                $this->encrypted = true;
-                $uvalue = $this->ARC4($pad);
-                $this->objects[$id]['info']['U'] = $uvalue;
-                // initialize the arc4 array
-                break;
-
-            case 'out':
-                $o = &$this->objects[$id];
-
-                $res = "\n$id 0 obj\n<<";
-                $res .= "\n/Filter /Standard";
-                $res .= "\n/V 1";
-                $res .= "\n/R 2";
-                $res .= "\n/O (" . $this->filterText($o['info']['O'], false, false) . ')';
-                $res .= "\n/U (" . $this->filterText($o['info']['U'], false, false) . ')';
-                // and the p-value needs to be converted to account for the twos-complement approach
-                $o['info']['p'] = (($o['info']['p'] ^ 255) + 1) * -1;
-                $res .= "\n/P " . ($o['info']['p']);
-                $res .= "\n>>\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_indirect_references($id, $action, $options = null)
-    {
-        switch ($action) {
-            case 'new':
-            case 'add':
-                if ($id === 0) {
-                    $id = ++$this->numObj;
-                    $this->o_catalog($this->catalogId, 'names', $id);
-                    $this->objects[$id] = ['t' => 'indirect_references', 'info' => $options];
-                    $this->indirectReferenceId = $id;
-                } else {
-                    $this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
-                }
-                break;
-            case 'out':
-                $res = "\n$id 0 obj << ";
-
-                foreach ($this->objects[$id]['info'] as $referenceObjName => $referenceObjId) {
-                    $res .= "/$referenceObjName $referenceObjId 0 R ";
-                }
-
-                $res .= ">> endobj";
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_names($id, $action, $options = null)
-    {
-        switch ($action) {
-            case 'new':
-            case 'add':
-                if ($id === 0) {
-                    $id = ++$this->numObj;
-                    $this->objects[$id] = ['t' => 'names', 'info' => [$options]];
-                    $this->o_indirect_references($this->indirectReferenceId, 'add', ['EmbeddedFiles' => $id]);
-                    $this->embeddedFilesId = $id;
-                } else {
-                    $this->objects[$id]['info'][] = $options;
-                }
-                break;
-            case 'out':
-                $info = &$this->objects[$id]['info'];
-                $res = '';
-                if (count($info) > 0) {
-                    $res = "\n$id 0 obj << /Names [ ";
-
-                    if ($this->encrypted) {
-                        $this->encryptInit($id);
-                    }
-
-                    foreach ($info as $entry) {
-                        if ($this->encrypted) {
-                            $filename = $this->ARC4($entry['filename']);
-                        } else {
-                            $filename = $entry['filename'];
-                        }
-
-                        $res .= "($filename) " . $entry['dict_reference'] . " 0 R ";
-                    }
-
-                    $res .= "] >> endobj";
-                }
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_embedded_file_dictionary($id, $action, $options = null)
-    {
-        switch ($action) {
-            case 'new':
-                $embeddedFileId = ++$this->numObj;
-                $options['embedded_reference'] = $embeddedFileId;
-                $this->objects[$id] = ['t' => 'embedded_file_dictionary', 'info' => $options];
-                $this->o_embedded_file($embeddedFileId, 'new', $options);
-                $options['dict_reference'] = $id;
-                $this->o_names($this->embeddedFilesId, 'add', $options);
-                break;
-            case 'out':
-                $info = &$this->objects[$id]['info'];
-                $filename = $this->utf8toUtf16BE($info['filename']);
-                $description = $this->utf8toUtf16BE($info['description']);
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $filename = $this->ARC4($filename);
-                    $description = $this->ARC4($description);
-                }
-
-                $filename = $this->filterText($filename, false, false);
-                $description = $this->filterText($description, false, false);
-
-                $res = "\n$id 0 obj <</Type /Filespec /EF";
-                $res .= " <</F " . $info['embedded_reference'] . " 0 R >>";
-                $res .= " /F ($filename) /UF ($filename) /Desc ($description)";
-                $res .= " >> endobj";
-                return $res;
-        }
-
-        return null;
-    }
-
-    protected function o_embedded_file($id, $action, $options = null): ?string
-    {
-        switch ($action) {
-            case 'new':
-                $this->objects[$id] = ['t' => 'embedded_file', 'info' => $options];
-                break;
-            case 'out':
-                $info = &$this->objects[$id]['info'];
-
-                if ($this->compressionReady) {
-                    $filepath = $info['filepath'];
-                    $checksum = md5_file($filepath);
-                    $f = fopen($filepath, "rb");
-
-                    $file_content_compressed = '';
-                    $deflateContext = deflate_init(ZLIB_ENCODING_DEFLATE, ['level' => 6]);
-                    while (($block = fread($f, 8192))) {
-                        $file_content_compressed .= deflate_add($deflateContext, $block, ZLIB_NO_FLUSH);
-                    }
-                    $file_content_compressed .= deflate_add($deflateContext, '', ZLIB_FINISH);
-                    $file_size_uncompressed = ftell($f);
-                    fclose($f);
-                } else {
-                    $file_content = file_get_contents($info['filepath']);
-                    $file_size_uncompressed = mb_strlen($file_content, '8bit');
-                    $checksum = md5($file_content);
-                }
-
-                if ($this->encrypted) {
-                    $this->encryptInit($id);
-                    $checksum = $this->ARC4($checksum);
-                    $file_content_compressed = $this->ARC4($file_content_compressed);
-                }
-                $file_size_compressed = mb_strlen($file_content_compressed, '8bit');
-
-                $res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>" .
-                    " /Type/EmbeddedFile /Filter/FlateDecode" .
-                    " /Length $file_size_compressed >> stream\n$file_content_compressed\nendstream\nendobj";
-
-                return $res;
-        }
-
-        return null;
-    }
-
-    /**
-     * ARC4 functions
-     * A series of function to implement ARC4 encoding in PHP
-     */
-
-    /**
-     * calculate the 16 byte version of the 128 bit md5 digest of the string
-     *
-     * @param $string
-     * @return string
-     */
-    function md5_16($string)
-    {
-        $tmp = md5($string);
-        $out = '';
-        for ($i = 0; $i <= 30; $i = $i + 2) {
-            $out .= chr(hexdec(substr($tmp, $i, 2)));
-        }
-
-        return $out;
-    }
-
-    /**
-     * initialize the encryption for processing a particular object
-     *
-     * @param $id
-     */
-    function encryptInit($id)
-    {
-        $tmp = $this->encryptionKey;
-        $hex = dechex($id);
-        if (mb_strlen($hex, '8bit') < 6) {
-            $hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')) . $hex;
-        }
-        $tmp .= chr(hexdec(substr($hex, 4, 2)))
-            . chr(hexdec(substr($hex, 2, 2)))
-            . chr(hexdec(substr($hex, 0, 2)))
-            . chr(0)
-            . chr(0)
-        ;
-        $key = $this->md5_16($tmp);
-        $this->ARC4_init(substr($key, 0, 10));
-    }
-
-    /**
-     * initialize the ARC4 encryption
-     *
-     * @param string $key
-     */
-    function ARC4_init($key = '')
-    {
-        $this->arc4 = '';
-
-        // setup the control array
-        if (mb_strlen($key, '8bit') == 0) {
-            return;
-        }
-
-        $k = '';
-        while (mb_strlen($k, '8bit') < 256) {
-            $k .= $key;
-        }
-
-        $k = substr($k, 0, 256);
-        for ($i = 0; $i < 256; $i++) {
-            $this->arc4 .= chr($i);
-        }
-
-        $j = 0;
-
-        for ($i = 0; $i < 256; $i++) {
-            $t = $this->arc4[$i];
-            $j = ($j + ord($t) + ord($k[$i])) % 256;
-            $this->arc4[$i] = $this->arc4[$j];
-            $this->arc4[$j] = $t;
-        }
-    }
-
-    /**
-     * ARC4 encrypt a text string
-     *
-     * @param $text
-     * @return string
-     */
-    function ARC4($text)
-    {
-        $len = mb_strlen($text, '8bit');
-        $a = 0;
-        $b = 0;
-        $c = $this->arc4;
-        $out = '';
-        for ($i = 0; $i < $len; $i++) {
-            $a = ($a + 1) % 256;
-            $t = $c[$a];
-            $b = ($b + ord($t)) % 256;
-            $c[$a] = $c[$b];
-            $c[$b] = $t;
-            $k = ord($c[(ord($c[$a]) + ord($c[$b])) % 256]);
-            $out .= chr(ord($text[$i]) ^ $k);
-        }
-
-        return $out;
-    }
-
-    /**
-     * functions which can be called to adjust or add to the document
-     */
-
-    /**
-     * add a link in the document to an external URL
-     *
-     * @param $url
-     * @param $x0
-     * @param $y0
-     * @param $x1
-     * @param $y1
-     */
-    function addLink($url, $x0, $y0, $x1, $y1)
-    {
-        $this->numObj++;
-        $info = ['type' => 'link', 'url' => $url, 'rect' => [$x0, $y0, $x1, $y1]];
-        $this->o_annotation($this->numObj, 'new', $info);
-    }
-
-    /**
-     * add a link in the document to an internal destination (ie. within the document)
-     *
-     * @param $label
-     * @param $x0
-     * @param $y0
-     * @param $x1
-     * @param $y1
-     */
-    function addInternalLink($label, $x0, $y0, $x1, $y1)
-    {
-        $this->numObj++;
-        $info = ['type' => 'ilink', 'label' => $label, 'rect' => [$x0, $y0, $x1, $y1]];
-        $this->o_annotation($this->numObj, 'new', $info);
-    }
-
-    /**
-     * set the encryption of the document
-     * can be used to turn it on and/or set the passwords which it will have.
-     * also the functions that the user will have are set here, such as print, modify, add
-     *
-     * @param string $userPass
-     * @param string $ownerPass
-     * @param array $pc
-     */
-    function setEncryption($userPass = '', $ownerPass = '', $pc = [])
-    {
-        $p = bindec("11000000");
-
-        $options = ['print' => 4, 'modify' => 8, 'copy' => 16, 'add' => 32];
-
-        foreach ($pc as $k => $v) {
-            if ($v && isset($options[$k])) {
-                $p += $options[$k];
-            } else {
-                if (isset($options[$v])) {
-                    $p += $options[$v];
-                }
-            }
-        }
-
-        // implement encryption on the document
-        if ($this->arc4_objnum == 0) {
-            // then the block does not exist already, add it.
-            $this->numObj++;
-            if (mb_strlen($ownerPass) == 0) {
-                $ownerPass = $userPass;
-            }
-
-            $this->o_encryption($this->numObj, 'new', ['user' => $userPass, 'owner' => $ownerPass, 'p' => $p]);
-        }
-    }
-
-    /**
-     * should be used for internal checks, not implemented as yet
-     */
-    function checkAllHere()
-    {
-    }
-
-    /**
-     * return the pdf stream as a string returned from the function
-     *
-     * @param bool $debug
-     * @return string
-     */
-    function output($debug = false)
-    {
-        if ($debug) {
-            // turn compression off
-            $this->options['compression'] = false;
-        }
-
-        if ($this->javascript) {
-            $this->numObj++;
-
-            $js_id = $this->numObj;
-            $this->o_embedjs($js_id, 'new');
-            $this->o_javascript(++$this->numObj, 'new', $this->javascript);
-
-            $id = $this->catalogId;
-
-            $this->o_indirect_references($this->indirectReferenceId, 'add', ['JavaScript' => $js_id]);
-        }
-
-        if ($this->fileIdentifier === '') {
-            $tmp = implode('', $this->objects[$this->infoObject]['info']);
-            $this->fileIdentifier = md5('DOMPDF' . __FILE__ . $tmp . microtime() . mt_rand());
-        }
-
-        if ($this->arc4_objnum) {
-            $this->o_encryption($this->arc4_objnum, 'keys');
-            $this->ARC4_init($this->encryptionKey);
-        }
-
-        $this->checkAllHere();
-
-        $xref = [];
-        $content = '%PDF-' . self::PDF_VERSION;
-        $pos = mb_strlen($content, '8bit');
-
-        // pre-process o_font objects before output of all objects
-        foreach ($this->objects as $k => $v) {
-            if ($v['t'] === 'font') {
-                $this->o_font($k, 'add');
-            }
-        }
-
-        foreach ($this->objects as $k => $v) {
-            $tmp = 'o_' . $v['t'];
-            $cont = $this->$tmp($k, 'out');
-            $content .= $cont;
-            $xref[] = $pos + 1; //+1 to account for \n at the start of each object
-            $pos += mb_strlen($cont, '8bit');
-        }
-
-        $content .= "\nxref\n0 " . (count($xref) + 1) . "\n0000000000 65535 f \n";
-
-        foreach ($xref as $p) {
-            $content .= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
-        }
-
-        $content .= "trailer\n<<\n" .
-            '/Size ' . (count($xref) + 1) . "\n" .
-            '/Root 1 0 R' . "\n" .
-            '/Info ' . $this->infoObject . " 0 R\n"
-        ;
-
-        // if encryption has been applied to this document then add the marker for this dictionary
-        if ($this->arc4_objnum > 0) {
-            $content .= '/Encrypt ' . $this->arc4_objnum . " 0 R\n";
-        }
-
-        $content .= '/ID[<' . $this->fileIdentifier . '><' . $this->fileIdentifier . ">]\n";
-
-        // account for \n added at start of xref table
-        $pos++;
-
-        $content .= ">>\nstartxref\n$pos\n%%EOF\n";
-
-        if (count($this->byteRange) > 0) {
-            foreach ($this->byteRange as $k => $v) {
-                $tmp = 'o_' . $v['t'];
-                $this->$tmp($k, 'byterange', ['content' => &$content]);
-            }
-        }
-
-        return $content;
-    }
-
-    /**
-     * initialize a new document
-     * if this is called on an existing document results may be unpredictable, but the existing document would be lost at minimum
-     * this function is called automatically by the constructor function
-     *
-     * @param array $pageSize
-     */
-    private function newDocument($pageSize = [0, 0, 612, 792])
-    {
-        $this->numObj = 0;
-        $this->objects = [];
-
-        $this->numObj++;
-        $this->o_catalog($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_outlines($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_pages($this->numObj, 'new');
-
-        $this->o_pages($this->numObj, 'mediaBox', $pageSize);
-        $this->currentNode = 3;
-
-        $this->numObj++;
-        $this->o_procset($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_info($this->numObj, 'new');
-
-        $this->numObj++;
-        $this->o_page($this->numObj, 'new');
-
-        // need to store the first page id as there is no way to get it to the user during
-        // startup
-        $this->firstPageId = $this->currentContents;
-    }
-
-    /**
-     * open the font file and return a php structure containing it.
-     * first check if this one has been done before and saved in a form more suited to php
-     * note that if a php serialized version does not exist it will try and make one, but will
-     * require write access to the directory to do it... it is MUCH faster to have these serialized
-     * files.
-     *
-     * @param $font
-     */
-    private function openFont($font)
-    {
-        // assume that $font contains the path and file but not the extension
-        $name = basename($font);
-        $dir = dirname($font);
-
-        $fontcache = $this->fontcache;
-        if ($fontcache == '') {
-            $fontcache = $dir;
-        }
-
-        //$name       filename without folder and extension of font metrics
-        //$dir        folder of font metrics
-        //$fontcache  folder of runtime created php serialized version of font metrics.
-        //            If this is not given, the same folder as the font metrics will be used.
-        //            Storing and reusing serialized versions improves speed much
-
-        $this->addMessage("openFont: $font - $name");
-
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
-            $metrics_name = "$name.afm";
-        } else {
-            $metrics_name = "$name.ufm";
-        }
-
-        $cache_name = "$metrics_name.json";
-        $this->addMessage("metrics: $metrics_name, cache: $cache_name");
+				$res = "\n$id 0 obj\n";
+				$res .= "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
+				$res .= "stream\n" . $stream . "\nendstream" . "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a font descriptor, needed for including additional fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_fontDescriptor($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'fontDescriptor', 'info' => $options];
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /FontDescriptor\n";
+				foreach ($o['info'] as $label => $value) {
+					switch ($label) {
+						case 'Ascent':
+						case 'CapHeight':
+						case 'Descent':
+						case 'Flags':
+						case 'ItalicAngle':
+						case 'StemV':
+						case 'AvgWidth':
+						case 'Leading':
+						case 'MaxWidth':
+						case 'MissingWidth':
+						case 'StemH':
+						case 'XHeight':
+						case 'CharSet':
+							if (mb_strlen($value, '8bit')) {
+								$res .= "/$label $value\n";
+							}
+
+							break;
+						case 'FontFile':
+						case 'FontFile2':
+						case 'FontFile3':
+							$res .= "/$label $value 0 R\n";
+							break;
+
+						case 'FontBBox':
+							$res .= "/$label [$value[0] $value[1] $value[2] $value[3]]\n";
+							break;
+
+						case 'FontName':
+							$res .= "/$label /$value\n";
+							break;
+					}
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * the font encoding
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_fontEncoding($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				// the options array should contain 'differences' and maybe 'encoding'
+				$this->objects[$id] = ['t' => 'fontEncoding', 'info' => $options];
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Encoding\n";
+				if (!isset($o['info']['encoding'])) {
+					$o['info']['encoding'] = 'WinAnsiEncoding';
+				}
+
+				if ($o['info']['encoding'] !== 'none') {
+					$res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
+				}
+
+				$res .= "/Differences \n[";
+
+				$onum = -100;
+
+				foreach ($o['info']['differences'] as $num => $label) {
+					if ($num != $onum + 1) {
+						// we cannot make use of consecutive numbering
+						$res .= "\n$num /$label";
+					} else {
+						$res .= " /$label";
+					}
+
+					$onum = $num;
+				}
+
+				$res .= "\n]\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a descendent cid font, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return null|string
+	 */
+	protected function o_fontDescendentCID($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'fontDescendentCID', 'info' => $options];
+
+				// we need a CID system info section
+				$cidSystemInfoId = ++$this->numObj;
+				$this->o_cidSystemInfo($cidSystemInfoId, 'new');
+				$this->objects[$id]['info']['cidSystemInfo'] = $cidSystemInfoId;
+
+				// and a CID to GID map
+				$cidToGidMapId = ++$this->numObj;
+				$this->o_fontGIDtoCIDMap($cidToGidMapId, 'new', $options);
+				$this->objects[$id]['info']['cidToGidMap'] = $cidToGidMapId;
+				break;
+
+			case 'add':
+				foreach ($options as $k => $v) {
+					switch ($k) {
+						case 'BaseFont':
+							$o['info']['name'] = $v;
+							break;
+
+						case 'FirstChar':
+						case 'LastChar':
+						case 'MissingWidth':
+						case 'FontDescriptor':
+						case 'SubType':
+							$this->addMessage("o_fontDescendentCID $k : $v");
+							$o['info'][$k] = $v;
+							break;
+					}
+				}
+
+				// pass values down to cid to gid map
+				$this->o_fontGIDtoCIDMap($o['info']['cidToGidMap'], 'add', $options);
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n";
+				$res .= "<</Type /Font\n";
+				$res .= "/Subtype /CIDFontType2\n";
+				$res .= "/BaseFont /" . $o['info']['name'] . "\n";
+				$res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
+				//      if (isset($o['info']['FirstChar'])) {
+				//        $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
+				//      }
+
+				//      if (isset($o['info']['LastChar'])) {
+				//        $res.= "/LastChar ".$o['info']['LastChar']."\n";
+				//      }
+				if (isset($o['info']['FontDescriptor'])) {
+					$res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+				}
+
+				if (isset($o['info']['MissingWidth'])) {
+					$res .= "/DW " . $o['info']['MissingWidth'] . "\n";
+				}
+
+				if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
+					$cid_widths = &$this->fonts[$o['info']['fontFileName']]['CIDWidths'];
+					$w = '';
+					foreach ($cid_widths as $cid => $width) {
+						$w .= "$cid [$width] ";
+					}
+					$res .= "/W [$w]\n";
+				}
+
+				$res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
+				$res .= ">>\n";
+				$res .= "endobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * CID system info section, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @return null|string
+	 */
+	protected function o_cidSystemInfo($id, $action)
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't' => 'cidSystemInfo'
+				];
+				break;
+			case 'add':
+				break;
+			case 'out':
+				$ordering = 'UCS';
+				$registry = 'Adobe';
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$ordering = $this->ARC4($ordering);
+					$registry = $this->ARC4($registry);
+				}
+
+
+				$res = "\n$id 0 obj\n";
+
+				$res .= '<</Registry (' . $registry . ")\n"; // A string identifying an issuer of character collections
+				$res .= '/Ordering (' . $ordering . ")\n"; // A string that uniquely names a character collection issued by a specific registry
+				$res .= "/Supplement 0\n"; // The supplement number of the character collection.
+				$res .= ">>";
+
+				$res .= "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a font glyph to character map, needed for unicode fonts
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_fontGIDtoCIDMap($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'fontGIDtoCIDMap', 'info' => $options];
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n";
+				$fontFileName = $o['info']['fontFileName'];
+				$tmp = $this->fonts[$fontFileName]['CIDtoGID'] = base64_decode($this->fonts[$fontFileName]['CIDtoGID']);
+
+				$compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
+					$this->fonts[$fontFileName]['CIDtoGID_Compressed'];
+
+				if (!$compressed && isset($o['raw'])) {
+					$res .= $tmp;
+				} else {
+					$res .= "<<";
+
+					if (!$compressed && $this->compressionReady && $this->options['compression']) {
+						// then implement ZLIB based compression on this content stream
+						$compressed = true;
+						$tmp = gzcompress($tmp, 6);
+					}
+					if ($compressed) {
+						$res .= "\n/Filter /FlateDecode";
+					}
+
+					if ($this->encrypted) {
+						$this->encryptInit($id);
+						$tmp = $this->ARC4($tmp);
+					}
+
+					$res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
+				}
+
+				$res .= "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * the document procset, solves some problems with printing to old PS printers
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_procset($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'procset', 'info' => ['PDF' => 1, 'Text' => 1]];
+				$this->o_pages($this->currentNode, 'procset', $id);
+				$this->procsetObjectId = $id;
+				break;
+
+			case 'add':
+				// this is to add new items to the procset list, despite the fact that this is considered
+				// obsolete, the items are required for printing to some postscript printers
+				switch ($options) {
+					case 'ImageB':
+					case 'ImageC':
+					case 'ImageI':
+						$o['info'][$options] = 1;
+						break;
+				}
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n[";
+				foreach ($o['info'] as $label => $val) {
+					$res .= "/$label ";
+				}
+				$res .= "]\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * define the document information
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_info($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->infoObject = $id;
+				$date = 'D:' . @date('Ymd');
+				$this->objects[$id] = [
+					't'    => 'info',
+					'info' => [
+						'Producer'      => 'CPDF (dompdf)',
+						'CreationDate' => $date
+					]
+				];
+				break;
+			case 'Title':
+			case 'Author':
+			case 'Subject':
+			case 'Keywords':
+			case 'Creator':
+			case 'Producer':
+			case 'CreationDate':
+			case 'ModDate':
+			case 'Trapped':
+				$this->objects[$id]['info'][$action] = $options;
+				break;
+
+			case 'out':
+				$encrypted = $this->encrypted;
+				if ($encrypted) {
+					$this->encryptInit($id);
+				}
+
+				$res = "\n$id 0 obj\n<<\n";
+				$o = &$this->objects[$id];
+				foreach ($o['info'] as $k => $v) {
+					$res .= "/$k (";
+
+					// dates must be outputted as-is, without Unicode transformations
+					if ($k !== 'CreationDate' && $k !== 'ModDate') {
+						$v = $this->utf8toUtf16BE($v);
+					}
+
+					if ($encrypted) {
+						$v = $this->ARC4($v);
+					}
+
+					$res .= $this->filterText($v, false, false);
+					$res .= ")\n";
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an action object, used to link to URLS initially
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_action($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				if (is_array($options)) {
+					$this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => $options['type']];
+				} else {
+					// then assume a URI action
+					$this->objects[$id] = ['t' => 'action', 'info' => $options, 'type' => 'URI'];
+				}
+				break;
+
+			case 'out':
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+				}
+
+				$res = "\n$id 0 obj\n<< /Type /Action";
+				switch ($o['type']) {
+					case 'ilink':
+						if (!isset($this->destinations[(string)$o['info']['label']])) {
+							break;
+						}
+
+						// there will be an 'label' setting, this is the name of the destination
+						$res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
+						break;
+
+					case 'URI':
+						$res .= "\n/S /URI\n/URI (";
+						if ($this->encrypted) {
+							$res .= $this->filterText($this->ARC4($o['info']), false, false);
+						} else {
+							$res .= $this->filterText($o['info'], false, false);
+						}
+
+						$res .= ")";
+						break;
+				}
+
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an annotation object, this will add an annotation to the current page.
+	 * initially will support just link annotations
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_annotation($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				// add the annotation to the current page
+				$pageId = $this->currentPage;
+				$this->o_page($pageId, 'annot', $id);
+
+				// and add the action object which is going to be required
+				switch ($options['type']) {
+					case 'link':
+						$this->objects[$id] = ['t' => 'annotation', 'info' => $options];
+						$this->numObj++;
+						$this->o_action($this->numObj, 'new', $options['url']);
+						$this->objects[$id]['info']['actionId'] = $this->numObj;
+						break;
+
+					case 'ilink':
+						// this is to a named internal link
+						$label = $options['label'];
+						$this->objects[$id] = ['t' => 'annotation', 'info' => $options];
+						$this->numObj++;
+						$this->o_action($this->numObj, 'new', ['type' => 'ilink', 'label' => $label]);
+						$this->objects[$id]['info']['actionId'] = $this->numObj;
+						break;
+				}
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Annot";
+				switch ($o['info']['type']) {
+					case 'link':
+					case 'ilink':
+						$res .= "\n/Subtype /Link";
+						break;
+				}
+				$res .= "\n/A " . $o['info']['actionId'] . " 0 R";
+				$res .= "\n/Border [0 0 0]";
+				$res .= "\n/H /I";
+				$res .= "\n/Rect [ ";
+
+				foreach ($o['info']['rect'] as $v) {
+					$res .= sprintf("%.4F ", $v);
+				}
+
+				$res .= "]";
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * a page object, it also creates a contents object to hold its contents
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_page($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->numPages++;
+				$this->objects[$id] = [
+					't'    => 'page',
+					'info' => [
+						'parent'  => $this->currentNode,
+						'pageNum' => $this->numPages,
+						'mediaBox' => $this->objects[$this->currentNode]['info']['mediaBox']
+					]
+				];
+
+				if (is_array($options)) {
+					// then this must be a page insertion, array should contain 'rid','pos'=[before|after]
+					$options['id'] = $id;
+					$this->o_pages($this->currentNode, 'page', $options);
+				} else {
+					$this->o_pages($this->currentNode, 'page', $id);
+				}
+
+				$this->currentPage = $id;
+				//make a contents object to go with this page
+				$this->numObj++;
+				$this->o_contents($this->numObj, 'new', $id);
+				$this->currentContents = $this->numObj;
+				$this->objects[$id]['info']['contents'] = [];
+				$this->objects[$id]['info']['contents'][] = $this->numObj;
+
+				$match = ($this->numPages % 2 ? 'odd' : 'even');
+				foreach ($this->addLooseObjects as $oId => $target) {
+					if ($target === 'all' || $match === $target) {
+						$this->objects[$id]['info']['contents'][] = $oId;
+					}
+				}
+				break;
+
+			case 'content':
+				$o['info']['contents'][] = $options;
+				break;
+
+			case 'annot':
+				// add an annotation to this page
+				if (!isset($o['info']['annot'])) {
+					$o['info']['annot'] = [];
+				}
+
+				// $options should contain the id of the annotation dictionary
+				$o['info']['annot'][] = $options;
+				break;
+
+			case 'out':
+				$res = "\n$id 0 obj\n<< /Type /Page";
+				if (isset($o['info']['mediaBox'])) {
+					$tmp = $o['info']['mediaBox'];
+					$res .= "\n/MediaBox [" . sprintf(
+							'%.3F %.3F %.3F %.3F',
+							$tmp[0],
+							$tmp[1],
+							$tmp[2],
+							$tmp[3]
+						) . ']';
+				}
+				$res .= "\n/Parent " . $o['info']['parent'] . " 0 R";
+
+				if (isset($o['info']['annot'])) {
+					$res .= "\n/Annots [";
+					foreach ($o['info']['annot'] as $aId) {
+						$res .= " $aId 0 R";
+					}
+					$res .= " ]";
+				}
+
+				$count = count($o['info']['contents']);
+				if ($count == 1) {
+					$res .= "\n/Contents " . $o['info']['contents'][0] . " 0 R";
+				} else {
+					if ($count > 1) {
+						$res .= "\n/Contents [\n";
+
+						// reverse the page contents so added objects are below normal content
+						//foreach (array_reverse($o['info']['contents']) as $cId) {
+						// Back to normal now that I've got transparency working --Benj
+						foreach ($o['info']['contents'] as $cId) {
+							$res .= "$cId 0 R\n";
+						}
+						$res .= "]";
+					}
+				}
+
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * the contents objects hold all of the content which appears on pages
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string|array $options
+	 * @return null|string
+	 */
+	protected function o_contents($id, $action, $options = '')
+	{
+		if ($action !== 'new') {
+			$o = &$this->objects[$id];
+		}
+
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'contents', 'c' => '', 'info' => []];
+				if (mb_strlen($options, '8bit') && intval($options)) {
+					// then this contents is the primary for a page
+					$this->objects[$id]['onPage'] = $options;
+				} else {
+					if ($options === 'raw') {
+						// then this page contains some other type of system object
+						$this->objects[$id]['raw'] = 1;
+					}
+				}
+				break;
+
+			case 'add':
+				// add more options to the declaration
+				foreach ($options as $k => $v) {
+					$o['info'][$k] = $v;
+				}
+
+			case 'out':
+				$tmp = $o['c'];
+				$res = "\n$id 0 obj\n";
+
+				if (isset($this->objects[$id]['raw'])) {
+					$res .= $tmp;
+				} else {
+					$res .= "<<";
+					if ($this->compressionReady && $this->options['compression']) {
+						// then implement ZLIB based compression on this content stream
+						$res .= " /Filter /FlateDecode";
+						$tmp = gzcompress($tmp, 6);
+					}
+
+					if ($this->encrypted) {
+						$this->encryptInit($id);
+						$tmp = $this->ARC4($tmp);
+					}
+
+					foreach ($o['info'] as $k => $v) {
+						$res .= "\n/$k $v";
+					}
+
+					$res .= "\n/Length " . mb_strlen($tmp, '8bit') . " >>\nstream\n$tmp\nendstream";
+				}
+
+				$res .= "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @return string|null
+	 */
+	protected function o_embedjs($id, $action)
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'embedjs',
+					'info' => [
+						'Names' => '[(EmbeddedJS) ' . ($id + 1) . ' 0 R]'
+					]
+				];
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< ";
+				foreach ($o['info'] as $k => $v) {
+					$res .= "\n/$k $v";
+				}
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @param string $code
+	 * @return null|string
+	 */
+	protected function o_javascript($id, $action, $code = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = [
+					't'    => 'javascript',
+					'info' => [
+						'S'  => '/JavaScript',
+						'JS' => '(' . $this->filterText($code, true, false) . ')',
+					]
+				];
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< ";
+
+				foreach ($o['info'] as $k => $v) {
+					$res .= "\n/$k $v";
+				}
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * an image object, will be an XObject in the document, includes description and data
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_image($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				// make the new object
+				$this->objects[$id] = ['t' => 'image', 'data' => &$options['data'], 'info' => []];
+
+				$info =& $this->objects[$id]['info'];
+
+				$info['Type'] = '/XObject';
+				$info['Subtype'] = '/Image';
+				$info['Width'] = $options['iw'];
+				$info['Height'] = $options['ih'];
+
+				if (isset($options['masked']) && $options['masked']) {
+					$info['SMask'] = ($this->numObj - 1) . ' 0 R';
+				}
+
+				if (!isset($options['type']) || $options['type'] === 'jpg') {
+					if (!isset($options['channels'])) {
+						$options['channels'] = 3;
+					}
+
+					switch ($options['channels']) {
+						case 1:
+							$info['ColorSpace'] = '/DeviceGray';
+							break;
+						case 4:
+							$info['ColorSpace'] = '/DeviceCMYK';
+							break;
+						default:
+							$info['ColorSpace'] = '/DeviceRGB';
+							break;
+					}
+
+					if ($info['ColorSpace'] === '/DeviceCMYK') {
+						$info['Decode'] = '[1 0 1 0 1 0 1 0]';
+					}
+
+					$info['Filter'] = '/DCTDecode';
+					$info['BitsPerComponent'] = 8;
+				} else {
+					if ($options['type'] === 'png') {
+						$info['Filter'] = '/FlateDecode';
+						$info['DecodeParms'] = '<< /Predictor 15 /Colors ' . $options['ncolor'] . ' /Columns ' . $options['iw'] . ' /BitsPerComponent ' . $options['bitsPerComponent'] . '>>';
+
+						if ($options['isMask']) {
+							$info['ColorSpace'] = '/DeviceGray';
+						} else {
+							if (mb_strlen($options['pdata'], '8bit')) {
+								$tmp = ' [ /Indexed /DeviceRGB ' . (mb_strlen($options['pdata'], '8bit') / 3 - 1) . ' ';
+								$this->numObj++;
+								$this->o_contents($this->numObj, 'new');
+								$this->objects[$this->numObj]['c'] = $options['pdata'];
+								$tmp .= $this->numObj . ' 0 R';
+								$tmp .= ' ]';
+								$info['ColorSpace'] = $tmp;
+
+								if (isset($options['transparency'])) {
+									$transparency = $options['transparency'];
+									switch ($transparency['type']) {
+										case 'indexed':
+											$tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+											$info['Mask'] = $tmp;
+											break;
+
+										case 'color-key':
+											$tmp = ' [ ' .
+												$transparency['r'] . ' ' . $transparency['r'] .
+												$transparency['g'] . ' ' . $transparency['g'] .
+												$transparency['b'] . ' ' . $transparency['b'] .
+												' ] ';
+											$info['Mask'] = $tmp;
+											break;
+									}
+								}
+							} else {
+								if (isset($options['transparency'])) {
+									$transparency = $options['transparency'];
+
+									switch ($transparency['type']) {
+										case 'indexed':
+											$tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+											$info['Mask'] = $tmp;
+											break;
+
+										case 'color-key':
+											$tmp = ' [ ' .
+												$transparency['r'] . ' ' . $transparency['r'] . ' ' .
+												$transparency['g'] . ' ' . $transparency['g'] . ' ' .
+												$transparency['b'] . ' ' . $transparency['b'] .
+												' ] ';
+											$info['Mask'] = $tmp;
+											break;
+									}
+								}
+								$info['ColorSpace'] = '/' . $options['color'];
+							}
+						}
+
+						$info['BitsPerComponent'] = $options['bitsPerComponent'];
+					}
+				}
+
+				// assign it a place in the named resource dictionary as an external object, according to
+				// the label passed in with it.
+				$this->o_pages($this->currentNode, 'xObject', ['label' => $options['label'], 'objNum' => $id]);
+
+				// also make sure that we have the right procset object for it.
+				$this->o_procset($this->procsetObjectId, 'add', 'ImageC');
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$tmp = &$o['data'];
+				$res = "\n$id 0 obj\n<<";
+
+				foreach ($o['info'] as $k => $v) {
+					$res .= "\n/$k $v";
+				}
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$tmp = $this->ARC4($tmp);
+				}
+
+				$res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * graphics state object
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_extGState($id, $action, $options = "")
+	{
+		static $valid_params = [
+			"LW",
+			"LC",
+			"LC",
+			"LJ",
+			"ML",
+			"D",
+			"RI",
+			"OP",
+			"op",
+			"OPM",
+			"Font",
+			"BG",
+			"BG2",
+			"UCR",
+			"TR",
+			"TR2",
+			"HT",
+			"FL",
+			"SM",
+			"SA",
+			"BM",
+			"SMask",
+			"CA",
+			"ca",
+			"AIS",
+			"TK"
+		];
+
+		switch ($action) {
+			case "new":
+				$this->objects[$id] = ['t' => 'extGState', 'info' => $options];
+
+				// Tell the pages about the new resource
+				$this->numStates++;
+				$this->o_pages($this->currentNode, 'extGState', ["objNum" => $id, "stateNum" => $this->numStates]);
+				break;
+
+			case "out":
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< /Type /ExtGState\n";
+
+				foreach ($o["info"] as $k => $v) {
+					if (!in_array($k, $valid_params)) {
+						continue;
+					}
+					$res .= "/$k $v\n";
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param integer $id
+	 * @param string $action
+	 * @param mixed $options
+	 * @return string
+	 */
+	protected function o_xobject($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'xobject', 'info' => $options, 'c' => ''];
+				break;
+
+			case 'procset':
+				$this->objects[$id]['procset'] = $options;
+				break;
+
+			case 'font':
+				$this->objects[$id]['fonts'][$options['fontNum']] = [
+				  'objNum' => $options['objNum'],
+				  'fontNum' => $options['fontNum']
+				];
+				break;
+
+			case 'xObject':
+				$this->objects[$id]['xObjects'][] = ['objNum' => $options['objNum'], 'label' => $options['label']];
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< /Type /XObject\n";
+
+				foreach ($o["info"] as $k => $v) {
+					switch ($k) {
+						case 'Subtype':
+							$res .= "/Subtype /$v\n";
+							break;
+						case 'bbox':
+							$res .= "/BBox [";
+							foreach ($v as $value) {
+								$res .= sprintf("%.4F ", $value);
+							}
+							$res .= "]\n";
+							break;
+						default:
+							$res .= "/$k $v\n";
+							break;
+					}
+				}
+				$res .= "/Matrix[1.0 0.0 0.0 1.0 0.0 0.0]\n";
+
+				$res .= "/Resources <<";
+				if (isset($o['procset'])) {
+					$res .= "\n/ProcSet " . $o['procset'] . " 0 R";
+				} else {
+					$res .= "\n/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]";
+				}
+				if (isset($o['fonts']) && count($o['fonts'])) {
+					$res .= "\n/Font << ";
+					foreach ($o['fonts'] as $finfo) {
+						$res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+					}
+					$res .= "\n>>";
+				}
+				if (isset($o['xObjects']) && count($o['xObjects'])) {
+					$res .= "\n/XObject << ";
+					foreach ($o['xObjects'] as $finfo) {
+						$res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+					}
+					$res .= "\n>>";
+				}
+				$res .= "\n>>\n";
+
+				$tmp = $o["c"];
+				if ($this->compressionReady && $this->options['compression']) {
+					// then implement ZLIB based compression on this content stream
+					$res .= " /Filter /FlateDecode\n";
+					$tmp = gzcompress($tmp, 6);
+				}
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$tmp = $this->ARC4($tmp);
+				}
+
+				$res .= "/Length " . mb_strlen($tmp, '8bit') . " >>\n";
+				$res .= "stream\n" . $tmp . "\nendstream" . "\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_acroform($id, $action, $options = '')
+	{
+		switch ($action) {
+			case "new":
+				$this->o_catalog($this->catalogId, 'acroform', $id);
+				$this->objects[$id] = array('t' => 'acroform', 'info' => $options);
+				break;
+
+			case 'addfield':
+				$this->objects[$id]['info']['Fields'][] = $options;
+				break;
+
+			case 'font':
+				$this->objects[$id]['fonts'][$options['fontNum']] = [
+				  'objNum' => $options['objNum'],
+				  'fontNum' => $options['fontNum']
+				];
+				break;
+
+			case "out":
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<<";
+
+				foreach ($o["info"] as $k => $v) {
+					switch ($k) {
+						case 'Fields':
+							$res .= " /Fields [";
+							foreach ($v as $i) {
+								$res .= "$i 0 R ";
+							}
+							$res .= "]\n";
+							break;
+						default:
+							$res .= "/$k $v\n";
+					}
+				}
+
+				$res .= "/DR <<\n";
+				if (isset($o['fonts']) && count($o['fonts'])) {
+					$res .= "/Font << \n";
+					foreach ($o['fonts'] as $finfo) {
+						$res .= "/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R\n";
+					}
+					$res .= ">>\n";
+				}
+				$res .= ">>\n";
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param $id
+	 * @param $action
+	 * @param mixed $options
+	 * @return null|string
+	 */
+	protected function o_field($id, $action, $options = '')
+	{
+		switch ($action) {
+			case "new":
+				$this->o_page($options['pageid'], 'annot', $id);
+				$this->o_acroform($this->acroFormId, 'addfield', $id);
+				$this->objects[$id] = ['t' => 'field', 'info' => $options];
+				break;
+
+			case 'set':
+				$this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
+				break;
+
+			case "out":
+				$o = &$this->objects[$id];
+				$res = "\n$id 0 obj\n<< /Type /Annot /Subtype /Widget \n";
+
+				$encrypted = $this->encrypted;
+				if ($encrypted) {
+					$this->encryptInit($id);
+				}
+
+				foreach ($o["info"] as $k => $v) {
+					switch ($k) {
+						case 'pageid':
+							$res .= "/P $v 0 R\n";
+							break;
+						case 'value':
+							if ($encrypted) {
+								$v = $this->filterText($this->ARC4($v), false, false);
+							}
+							$res .= "/V ($v)\n";
+							break;
+						case 'refvalue':
+							$res .= "/V $v 0 R\n";
+							break;
+						case 'da':
+							if ($encrypted) {
+								$v = $this->filterText($this->ARC4($v), false, false);
+							}
+							$res .= "/DA ($v)\n";
+							break;
+						case 'options':
+							$res .= "/Opt [\n";
+							foreach ($v as $opt) {
+								if ($encrypted) {
+									$opt = $this->filterText($this->ARC4($opt), false, false);
+								}
+								$res .= "($opt)\n";
+							}
+							$res .= "]\n";
+							break;
+						case 'rect':
+							$res .= "/Rect [";
+							foreach ($v as $value) {
+								$res .= sprintf("%.4F ", $value);
+							}
+							$res .= "]\n";
+							break;
+						case 'appearance':
+							$res .= "/AP << ";
+							foreach ($v as $a => $ref) {
+								$res .= "/$a $ref 0 R ";
+							}
+							$res .= ">>\n";
+							break;
+						case 'T':
+							if ($encrypted) {
+								$v = $this->filterText($this->ARC4($v), false, false);
+							}
+							$res .= "/T ($v)\n";
+							break;
+						default:
+							$res .= "/$k $v\n";
+					}
+
+				}
+
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return null|string
+	 */
+	protected function o_sig($id, $action, $options = '')
+	{
+		$sign_maxlen = $this->signatureMaxLen;
+
+		switch ($action) {
+			case "new":
+				$this->objects[$id] = array('t' => 'sig', 'info' => $options);
+				$this->byteRange[$id] = ['t' => 'sig'];
+				break;
+
+			case 'byterange':
+				$o = &$this->objects[$id];
+				$content =& $options['content'];
+				$content_len = strlen($content);
+				$pos = strpos($content, sprintf("/ByteRange [ %'.010d", $id));
+				$len = strlen('/ByteRange [ ********** ********** ********** ********** ]');
+				$rangeStartPos = $pos + $len + 1 + 10; // before '<'
+				$content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos), $len, ' ', STR_PAD_RIGHT), $pos, $len);
+
+				$fuid = uniqid();
+				$tmpInput = $this->tmp . "/pkcs7.tmp." . $fuid . '.in';
+				$tmpOutput = $this->tmp . "/pkcs7.tmp." . $fuid . '.out';
+
+				if (file_put_contents($tmpInput, substr($content, 0, $rangeStartPos)) === false) {
+					throw new \Exception("Unable to write temporary file for signing.");
+				}
+				if (file_put_contents($tmpInput, substr($content, $rangeStartPos + 2 + $sign_maxlen),
+					FILE_APPEND) === false) {
+					throw new \Exception("Unable to write temporary file for signing.");
+				}
+
+				if (openssl_pkcs7_sign($tmpInput, $tmpOutput,
+					$o['info']['SignCert'],
+					array($o['info']['PrivKey'], $o['info']['Password']),
+					array(), PKCS7_BINARY | PKCS7_DETACHED) === false) {
+					throw new \Exception("Failed to prepare signature.");
+				}
+
+				$signature = file_get_contents($tmpOutput);
+
+				unlink($tmpInput);
+				unlink($tmpOutput);
+
+				$sign = substr($signature, (strpos($signature, "%%EOF\n\n------") + 13));
+				list($head, $signature) = explode("\n\n", $sign);
+
+				$signature = base64_decode(trim($signature));
+
+				$signature = current(unpack('H*', $signature));
+				$signature = str_pad($signature, $sign_maxlen, '0');
+				$siglen = strlen($signature);
+				if (strlen($signature) > $sign_maxlen) {
+					throw new \Exception("Signature length ($siglen) exceeds the $sign_maxlen limit.");
+				}
+
+				$content = substr_replace($content, $signature, $rangeStartPos + 1, $sign_maxlen);
+				break;
+
+			case "out":
+				$res = "\n$id 0 obj\n<<\n";
+
+				$encrypted = $this->encrypted;
+				if ($encrypted) {
+					$this->encryptInit($id);
+				}
+
+				$res .= "/ByteRange " .sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
+				$res .= "/Contents <" . str_pad('', $sign_maxlen, '0') . ">\n";
+				$res .= "/Filter/Adobe.PPKLite\n"; //PPKMS \n";
+				$res .= "/Type/Sig/SubFilter/adbe.pkcs7.detached \n";
+
+				$date = "D:" . substr_replace(date('YmdHisO'), '\'', -2, 0) . '\'';
+				if ($encrypted) {
+					$date = $this->ARC4($date);
+				}
+
+				$res .= "/M ($date)\n";
+				$res .= "/Prop_Build << /App << /Name /DomPDF >> /Filter << /Name /Adobe.PPKLite >> >>\n";
+
+				$o = &$this->objects[$id];
+				foreach ($o['info'] as $k => $v) {
+					switch ($k) {
+						case 'Name':
+						case 'Location':
+						case 'Reason':
+						case 'ContactInfo':
+							if ($v !== null && $v !== '') {
+								$res .= "/$k (" .
+								  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v) . ") \n";
+							}
+							break;
+					}
+				}
+				$res .= ">>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * encryption object.
+	 *
+	 * @param $id
+	 * @param $action
+	 * @param string $options
+	 * @return string|null
+	 */
+	protected function o_encryption($id, $action, $options = '')
+	{
+		switch ($action) {
+			case 'new':
+				// make the new object
+				$this->objects[$id] = ['t' => 'encryption', 'info' => $options];
+				$this->arc4_objnum = $id;
+				break;
+
+			case 'keys':
+				// figure out the additional parameters required
+				$pad = chr(0x28) . chr(0xBF) . chr(0x4E) . chr(0x5E) . chr(0x4E) . chr(0x75) . chr(0x8A) . chr(0x41)
+					. chr(0x64) . chr(0x00) . chr(0x4E) . chr(0x56) . chr(0xFF) . chr(0xFA) . chr(0x01) . chr(0x08)
+					. chr(0x2E) . chr(0x2E) . chr(0x00) . chr(0xB6) . chr(0xD0) . chr(0x68) . chr(0x3E) . chr(0x80)
+					. chr(0x2F) . chr(0x0C) . chr(0xA9) . chr(0xFE) . chr(0x64) . chr(0x53) . chr(0x69) . chr(0x7A);
+
+				$info = $this->objects[$id]['info'];
+
+				$len = mb_strlen($info['owner'], '8bit');
+
+				if ($len > 32) {
+					$owner = substr($info['owner'], 0, 32);
+				} else {
+					if ($len < 32) {
+						$owner = $info['owner'] . substr($pad, 0, 32 - $len);
+					} else {
+						$owner = $info['owner'];
+					}
+				}
+
+				$len = mb_strlen($info['user'], '8bit');
+				if ($len > 32) {
+					$user = substr($info['user'], 0, 32);
+				} else {
+					if ($len < 32) {
+						$user = $info['user'] . substr($pad, 0, 32 - $len);
+					} else {
+						$user = $info['user'];
+					}
+				}
+
+				$tmp = $this->md5_16($owner);
+				$okey = substr($tmp, 0, 5);
+				$this->ARC4_init($okey);
+				$ovalue = $this->ARC4($user);
+				$this->objects[$id]['info']['O'] = $ovalue;
+
+				// now make the u value, phew.
+				$tmp = $this->md5_16(
+					$user . $ovalue . chr($info['p']) . chr(255) . chr(255) . chr(255) . hex2bin($this->fileIdentifier)
+				);
+
+				$ukey = substr($tmp, 0, 5);
+				$this->ARC4_init($ukey);
+				$this->encryptionKey = $ukey;
+				$this->encrypted = true;
+				$uvalue = $this->ARC4($pad);
+				$this->objects[$id]['info']['U'] = $uvalue;
+				// initialize the arc4 array
+				break;
+
+			case 'out':
+				$o = &$this->objects[$id];
+
+				$res = "\n$id 0 obj\n<<";
+				$res .= "\n/Filter /Standard";
+				$res .= "\n/V 1";
+				$res .= "\n/R 2";
+				$res .= "\n/O (" . $this->filterText($o['info']['O'], false, false) . ')';
+				$res .= "\n/U (" . $this->filterText($o['info']['U'], false, false) . ')';
+				// and the p-value needs to be converted to account for the twos-complement approach
+				$o['info']['p'] = (($o['info']['p'] ^ 255) + 1) * -1;
+				$res .= "\n/P " . ($o['info']['p']);
+				$res .= "\n>>\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_indirect_references($id, $action, $options = null)
+	{
+		switch ($action) {
+			case 'new':
+			case 'add':
+				if ($id === 0) {
+					$id = ++$this->numObj;
+					$this->o_catalog($this->catalogId, 'names', $id);
+					$this->objects[$id] = ['t' => 'indirect_references', 'info' => $options];
+					$this->indirectReferenceId = $id;
+				} else {
+					$this->objects[$id]['info'] = array_merge($this->objects[$id]['info'], $options);
+				}
+				break;
+			case 'out':
+				$res = "\n$id 0 obj << ";
+
+				foreach ($this->objects[$id]['info'] as $referenceObjName => $referenceObjId) {
+					$res .= "/$referenceObjName $referenceObjId 0 R ";
+				}
+
+				$res .= ">> endobj";
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_names($id, $action, $options = null)
+	{
+		switch ($action) {
+			case 'new':
+			case 'add':
+				if ($id === 0) {
+					$id = ++$this->numObj;
+					$this->objects[$id] = ['t' => 'names', 'info' => [$options]];
+					$this->o_indirect_references($this->indirectReferenceId, 'add', ['EmbeddedFiles' => $id]);
+					$this->embeddedFilesId = $id;
+				} else {
+					$this->objects[$id]['info'][] = $options;
+				}
+				break;
+			case 'out':
+				$info = &$this->objects[$id]['info'];
+				$res = '';
+				if (count($info) > 0) {
+					$res = "\n$id 0 obj << /Names [ ";
+
+					if ($this->encrypted) {
+						$this->encryptInit($id);
+					}
+
+					foreach ($info as $entry) {
+						if ($this->encrypted) {
+							$filename = $this->ARC4($entry['filename']);
+						} else {
+							$filename = $entry['filename'];
+						}
+
+						$res .= "($filename) " . $entry['dict_reference'] . " 0 R ";
+					}
+
+					$res .= "] >> endobj";
+				}
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_embedded_file_dictionary($id, $action, $options = null)
+	{
+		switch ($action) {
+			case 'new':
+				$embeddedFileId = ++$this->numObj;
+				$options['embedded_reference'] = $embeddedFileId;
+				$this->objects[$id] = ['t' => 'embedded_file_dictionary', 'info' => $options];
+				$this->o_embedded_file($embeddedFileId, 'new', $options);
+				$options['dict_reference'] = $id;
+				$this->o_names($this->embeddedFilesId, 'add', $options);
+				break;
+			case 'out':
+				$info = &$this->objects[$id]['info'];
+				$filename = $this->utf8toUtf16BE($info['filename']);
+				$description = $this->utf8toUtf16BE($info['description']);
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$filename = $this->ARC4($filename);
+					$description = $this->ARC4($description);
+				}
+
+				$filename = $this->filterText($filename, false, false);
+				$description = $this->filterText($description, false, false);
+
+				$res = "\n$id 0 obj <</Type /Filespec /EF";
+				$res .= " <</F " . $info['embedded_reference'] . " 0 R >>";
+				$res .= " /F ($filename) /UF ($filename) /Desc ($description)";
+				$res .= " >> endobj";
+				return $res;
+		}
+
+		return null;
+	}
+
+	protected function o_embedded_file($id, $action, $options = null): ?string
+	{
+		switch ($action) {
+			case 'new':
+				$this->objects[$id] = ['t' => 'embedded_file', 'info' => $options];
+				break;
+			case 'out':
+				$info = &$this->objects[$id]['info'];
+
+				if ($this->compressionReady) {
+					$filepath = $info['filepath'];
+					$checksum = md5_file($filepath);
+					$f = fopen($filepath, "rb");
+
+					$file_content_compressed = '';
+					$deflateContext = deflate_init(ZLIB_ENCODING_DEFLATE, ['level' => 6]);
+					while (($block = fread($f, 8192))) {
+						$file_content_compressed .= deflate_add($deflateContext, $block, ZLIB_NO_FLUSH);
+					}
+					$file_content_compressed .= deflate_add($deflateContext, '', ZLIB_FINISH);
+					$file_size_uncompressed = ftell($f);
+					fclose($f);
+				} else {
+					$file_content = file_get_contents($info['filepath']);
+					$file_size_uncompressed = mb_strlen($file_content, '8bit');
+					$checksum = md5($file_content);
+				}
+
+				if ($this->encrypted) {
+					$this->encryptInit($id);
+					$checksum = $this->ARC4($checksum);
+					$file_content_compressed = $this->ARC4($file_content_compressed);
+				}
+				$file_size_compressed = mb_strlen($file_content_compressed, '8bit');
+
+				$res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>" .
+					" /Type/EmbeddedFile /Filter/FlateDecode" .
+					" /Length $file_size_compressed >> stream\n$file_content_compressed\nendstream\nendobj";
+
+				return $res;
+		}
+
+		return null;
+	}
+
+	/**
+	 * ARC4 functions
+	 * A series of function to implement ARC4 encoding in PHP
+	 */
+
+	/**
+	 * calculate the 16 byte version of the 128 bit md5 digest of the string
+	 *
+	 * @param $string
+	 * @return string
+	 */
+	function md5_16($string)
+	{
+		$tmp = md5($string);
+		$out = '';
+		for ($i = 0; $i <= 30; $i = $i + 2) {
+			$out .= chr(hexdec(substr($tmp, $i, 2)));
+		}
+
+		return $out;
+	}
+
+	/**
+	 * initialize the encryption for processing a particular object
+	 *
+	 * @param $id
+	 */
+	function encryptInit($id)
+	{
+		$tmp = $this->encryptionKey;
+		$hex = dechex($id);
+		if (mb_strlen($hex, '8bit') < 6) {
+			$hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')) . $hex;
+		}
+		$tmp .= chr(hexdec(substr($hex, 4, 2)))
+			. chr(hexdec(substr($hex, 2, 2)))
+			. chr(hexdec(substr($hex, 0, 2)))
+			. chr(0)
+			. chr(0)
+		;
+		$key = $this->md5_16($tmp);
+		$this->ARC4_init(substr($key, 0, 10));
+	}
+
+	/**
+	 * initialize the ARC4 encryption
+	 *
+	 * @param string $key
+	 */
+	function ARC4_init($key = '')
+	{
+		$this->arc4 = '';
+
+		// setup the control array
+		if (mb_strlen($key, '8bit') == 0) {
+			return;
+		}
+
+		$k = '';
+		while (mb_strlen($k, '8bit') < 256) {
+			$k .= $key;
+		}
+
+		$k = substr($k, 0, 256);
+		for ($i = 0; $i < 256; $i++) {
+			$this->arc4 .= chr($i);
+		}
+
+		$j = 0;
+
+		for ($i = 0; $i < 256; $i++) {
+			$t = $this->arc4[$i];
+			$j = ($j + ord($t) + ord($k[$i])) % 256;
+			$this->arc4[$i] = $this->arc4[$j];
+			$this->arc4[$j] = $t;
+		}
+	}
+
+	/**
+	 * ARC4 encrypt a text string
+	 *
+	 * @param $text
+	 * @return string
+	 */
+	function ARC4($text)
+	{
+		$len = mb_strlen($text, '8bit');
+		$a = 0;
+		$b = 0;
+		$c = $this->arc4;
+		$out = '';
+		for ($i = 0; $i < $len; $i++) {
+			$a = ($a + 1) % 256;
+			$t = $c[$a];
+			$b = ($b + ord($t)) % 256;
+			$c[$a] = $c[$b];
+			$c[$b] = $t;
+			$k = ord($c[(ord($c[$a]) + ord($c[$b])) % 256]);
+			$out .= chr(ord($text[$i]) ^ $k);
+		}
+
+		return $out;
+	}
+
+	/**
+	 * functions which can be called to adjust or add to the document
+	 */
+
+	/**
+	 * add a link in the document to an external URL
+	 *
+	 * @param $url
+	 * @param $x0
+	 * @param $y0
+	 * @param $x1
+	 * @param $y1
+	 */
+	function addLink($url, $x0, $y0, $x1, $y1)
+	{
+		$this->numObj++;
+		$info = ['type' => 'link', 'url' => $url, 'rect' => [$x0, $y0, $x1, $y1]];
+		$this->o_annotation($this->numObj, 'new', $info);
+	}
+
+	/**
+	 * add a link in the document to an internal destination (ie. within the document)
+	 *
+	 * @param $label
+	 * @param $x0
+	 * @param $y0
+	 * @param $x1
+	 * @param $y1
+	 */
+	function addInternalLink($label, $x0, $y0, $x1, $y1)
+	{
+		$this->numObj++;
+		$info = ['type' => 'ilink', 'label' => $label, 'rect' => [$x0, $y0, $x1, $y1]];
+		$this->o_annotation($this->numObj, 'new', $info);
+	}
+
+	/**
+	 * set the encryption of the document
+	 * can be used to turn it on and/or set the passwords which it will have.
+	 * also the functions that the user will have are set here, such as print, modify, add
+	 *
+	 * @param string $userPass
+	 * @param string $ownerPass
+	 * @param array $pc
+	 */
+	function setEncryption($userPass = '', $ownerPass = '', $pc = [])
+	{
+		$p = bindec("11000000");
+
+		$options = ['print' => 4, 'modify' => 8, 'copy' => 16, 'add' => 32];
+
+		foreach ($pc as $k => $v) {
+			if ($v && isset($options[$k])) {
+				$p += $options[$k];
+			} else {
+				if (isset($options[$v])) {
+					$p += $options[$v];
+				}
+			}
+		}
+
+		// implement encryption on the document
+		if ($this->arc4_objnum == 0) {
+			// then the block does not exist already, add it.
+			$this->numObj++;
+			if (mb_strlen($ownerPass) == 0) {
+				$ownerPass = $userPass;
+			}
+
+			$this->o_encryption($this->numObj, 'new', ['user' => $userPass, 'owner' => $ownerPass, 'p' => $p]);
+		}
+	}
+
+	/**
+	 * should be used for internal checks, not implemented as yet
+	 */
+	function checkAllHere()
+	{
+	}
+
+	/**
+	 * return the pdf stream as a string returned from the function
+	 *
+	 * @param bool $debug
+	 * @return string
+	 */
+	function output($debug = false)
+	{
+		if ($debug) {
+			// turn compression off
+			$this->options['compression'] = false;
+		}
+
+		if ($this->javascript) {
+			$this->numObj++;
+
+			$js_id = $this->numObj;
+			$this->o_embedjs($js_id, 'new');
+			$this->o_javascript(++$this->numObj, 'new', $this->javascript);
+
+			$id = $this->catalogId;
+
+			$this->o_indirect_references($this->indirectReferenceId, 'add', ['JavaScript' => $js_id]);
+		}
+
+		if ($this->fileIdentifier === '') {
+			$tmp = implode('', $this->objects[$this->infoObject]['info']);
+			$this->fileIdentifier = md5('DOMPDF' . __FILE__ . $tmp . microtime() . mt_rand());
+		}
+
+		if ($this->arc4_objnum) {
+			$this->o_encryption($this->arc4_objnum, 'keys');
+			$this->ARC4_init($this->encryptionKey);
+		}
+
+		$this->checkAllHere();
+
+		$xref = [];
+		$content = '%PDF-' . self::PDF_VERSION;
+		$pos = mb_strlen($content, '8bit');
+
+		// pre-process o_font objects before output of all objects
+		foreach ($this->objects as $k => $v) {
+			if ($v['t'] === 'font') {
+				$this->o_font($k, 'add');
+			}
+		}
+
+		foreach ($this->objects as $k => $v) {
+			$tmp = 'o_' . $v['t'];
+			$cont = $this->$tmp($k, 'out');
+			$content .= $cont;
+			$xref[] = $pos + 1; //+1 to account for \n at the start of each object
+			$pos += mb_strlen($cont, '8bit');
+		}
+
+		$content .= "\nxref\n0 " . (count($xref) + 1) . "\n0000000000 65535 f \n";
+
+		foreach ($xref as $p) {
+			$content .= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
+		}
+
+		$content .= "trailer\n<<\n" .
+			'/Size ' . (count($xref) + 1) . "\n" .
+			'/Root 1 0 R' . "\n" .
+			'/Info ' . $this->infoObject . " 0 R\n"
+		;
+
+		// if encryption has been applied to this document then add the marker for this dictionary
+		if ($this->arc4_objnum > 0) {
+			$content .= '/Encrypt ' . $this->arc4_objnum . " 0 R\n";
+		}
+
+		$content .= '/ID[<' . $this->fileIdentifier . '><' . $this->fileIdentifier . ">]\n";
+
+		// account for \n added at start of xref table
+		$pos++;
+
+		$content .= ">>\nstartxref\n$pos\n%%EOF\n";
+
+		if (count($this->byteRange) > 0) {
+			foreach ($this->byteRange as $k => $v) {
+				$tmp = 'o_' . $v['t'];
+				$this->$tmp($k, 'byterange', ['content' => &$content]);
+			}
+		}
+
+		return $content;
+	}
+
+	/**
+	 * initialize a new document
+	 * if this is called on an existing document results may be unpredictable, but the existing document would be lost at minimum
+	 * this function is called automatically by the constructor function
+	 *
+	 * @param array $pageSize
+	 */
+	private function newDocument($pageSize = [0, 0, 612, 792])
+	{
+		$this->numObj = 0;
+		$this->objects = [];
+
+		$this->numObj++;
+		$this->o_catalog($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_outlines($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_pages($this->numObj, 'new');
+
+		$this->o_pages($this->numObj, 'mediaBox', $pageSize);
+		$this->currentNode = 3;
+
+		$this->numObj++;
+		$this->o_procset($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_info($this->numObj, 'new');
+
+		$this->numObj++;
+		$this->o_page($this->numObj, 'new');
+
+		// need to store the first page id as there is no way to get it to the user during
+		// startup
+		$this->firstPageId = $this->currentContents;
+	}
+
+	/**
+	 * open the font file and return a php structure containing it.
+	 * first check if this one has been done before and saved in a form more suited to php
+	 * note that if a php serialized version does not exist it will try and make one, but will
+	 * require write access to the directory to do it... it is MUCH faster to have these serialized
+	 * files.
+	 *
+	 * @param $font
+	 */
+	private function openFont($font)
+	{
+		// assume that $font contains the path and file but not the extension
+		$name = basename($font);
+		$dir = dirname($font);
+
+		$fontcache = $this->fontcache;
+		if ($fontcache == '') {
+			$fontcache = $dir;
+		}
+
+		//$name       filename without folder and extension of font metrics
+		//$dir        folder of font metrics
+		//$fontcache  folder of runtime created php serialized version of font metrics.
+		//            If this is not given, the same folder as the font metrics will be used.
+		//            Storing and reusing serialized versions improves speed much
+
+		$this->addMessage("openFont: $font - $name");
+
+		if (!$this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
+			$metrics_name = "$name.afm";
+		} else {
+			$metrics_name = "$name.ufm";
+		}
+
+		$cache_name = "$metrics_name.json";
+		$this->addMessage("metrics: $metrics_name, cache: $cache_name");
         
-        if (file_exists($fontcache . '/' . $cache_name)) {
-            $this->addMessage("openFont: json metrics file exists $fontcache/$cache_name");
-            $cached_font_info = json_decode(file_get_contents($fontcache . '/' . $cache_name), true);
-            if (!isset($cached_font_info['_version_']) || $cached_font_info['_version_'] != $this->fontcacheVersion) {
-                $this->addMessage('openFont: font cache is out of date, regenerating');
-            } else {
-                $this->fonts[$font] = $cached_font_info;
-            }
-        }
-
-        if (!isset($this->fonts[$font]) && file_exists("$dir/$metrics_name")) {
-            // then rebuild the php_<font>.afm file from the <font>.afm file
-            $this->addMessage("openFont: build php file from $dir/$metrics_name");
-            $data = [];
-
-            // 20 => 'space'
-            $data['codeToName'] = [];
-
-            // Since we're not going to enable Unicode for the core fonts we need to use a font-based
-            // setting for Unicode support rather than a global setting.
-            $data['isUnicode'] = (strtolower(substr($metrics_name, -3)) !== 'afm');
-
-            $cidtogid = '';
-            if ($data['isUnicode']) {
-                $cidtogid = str_pad('', 256 * 256 * 2, "\x00");
-            }
-
-            $file = file("$dir/$metrics_name");
-
-            foreach ($file as $rowA) {
-                $row = trim($rowA);
-                $pos = strpos($row, ' ');
-
-                if ($pos) {
-                    // then there must be some keyword
-                    $key = substr($row, 0, $pos);
-                    switch ($key) {
-                        case 'FontName':
-                        case 'FullName':
-                        case 'FamilyName':
-                        case 'PostScriptName':
-                        case 'Weight':
-                        case 'ItalicAngle':
-                        case 'IsFixedPitch':
-                        case 'CharacterSet':
-                        case 'UnderlinePosition':
-                        case 'UnderlineThickness':
-                        case 'Version':
-                        case 'EncodingScheme':
-                        case 'CapHeight':
-                        case 'XHeight':
-                        case 'Ascender':
-                        case 'Descender':
-                        case 'StdHW':
-                        case 'StdVW':
-                        case 'StartCharMetrics':
-                        case 'FontHeightOffset': // OAR - Added so we can offset the height calculation of a Windows font.  Otherwise it's too big.
-                            $data[$key] = trim(substr($row, $pos));
-                            break;
-
-                        case 'FontBBox':
-                            $data[$key] = explode(' ', trim(substr($row, $pos)));
-                            break;
-
-                        //C 39 ; WX 222 ; N quoteright ; B 53 463 157 718 ;
-                        case 'C': // Found in AFM files
-                            $bits = explode(';', trim($row));
-                            $dtmp = ['C' => null, 'N' => null, 'WX' => null, 'B' => []];
-
-                            foreach ($bits as $bit) {
-                                $bits2 = explode(' ', trim($bit));
-                                if (mb_strlen($bits2[0], '8bit') == 0) {
-                                    continue;
-                                }
-
-                                if (count($bits2) > 2) {
-                                    $dtmp[$bits2[0]] = [];
-                                    for ($i = 1; $i < count($bits2); $i++) {
-                                        $dtmp[$bits2[0]][] = $bits2[$i];
-                                    }
-                                } else {
-                                    if (count($bits2) == 2) {
-                                        $dtmp[$bits2[0]] = $bits2[1];
-                                    }
-                                }
-                            }
-
-                            $c = (int)$dtmp['C'];
-                            $n = $dtmp['N'];
-                            $width = floatval($dtmp['WX']);
-
-                            if ($c >= 0) {
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
-                                    $data['codeToName'][$c] = $n;
-                                }
-                                $data['C'][$c] = $width;
-                            } elseif (isset($n)) {
-                                $data['C'][$n] = $width;
-                            }
-
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
-                                $data['MissingWidth'] = $width;
-                            }
-
-                            break;
-
-                        // U 827 ; WX 0 ; N squaresubnosp ; G 675 ;
-                        case 'U': // Found in UFM files
-                            if (!$data['isUnicode']) {
-                                break;
-                            }
-
-                            $bits = explode(';', trim($row));
-                            $dtmp = ['G' => null, 'N' => null, 'U' => null, 'WX' => null];
-
-                            foreach ($bits as $bit) {
-                                $bits2 = explode(' ', trim($bit));
-                                if (mb_strlen($bits2[0], '8bit') === 0) {
-                                    continue;
-                                }
-
-                                if (count($bits2) > 2) {
-                                    $dtmp[$bits2[0]] = [];
-                                    for ($i = 1; $i < count($bits2); $i++) {
-                                        $dtmp[$bits2[0]][] = $bits2[$i];
-                                    }
-                                } else {
-                                    if (count($bits2) == 2) {
-                                        $dtmp[$bits2[0]] = $bits2[1];
-                                    }
-                                }
-                            }
-
-                            $c = (int)$dtmp['U'];
-                            $n = $dtmp['N'];
-                            $glyph = $dtmp['G'];
-                            $width = floatval($dtmp['WX']);
-
-                            if ($c >= 0) {
-                                // Set values in CID to GID map
-                                if ($c >= 0 && $c < 0xFFFF && $glyph) {
-                                    $cidtogid[$c * 2] = chr($glyph >> 8);
-                                    $cidtogid[$c * 2 + 1] = chr($glyph & 0xFF);
-                                }
-
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
-                                    $data['codeToName'][$c] = $n;
-                                }
-                                $data['C'][$c] = $width;
-                            } elseif (isset($n)) {
-                                $data['C'][$n] = $width;
-                            }
-
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
-                                $data['MissingWidth'] = $width;
-                            }
-
-                            break;
-
-                        case 'KPX':
-                            break; // don't include them as they are not used yet
-                            //KPX Adieresis yacute -40
-                            /*$bits = explode(' ', trim($row));
+		if (file_exists($fontcache . '/' . $cache_name)) {
+			$this->addMessage("openFont: json metrics file exists $fontcache/$cache_name");
+			$cached_font_info = json_decode(file_get_contents($fontcache . '/' . $cache_name), true);
+			if (!isset($cached_font_info['_version_']) || $cached_font_info['_version_'] != $this->fontcacheVersion) {
+				$this->addMessage('openFont: font cache is out of date, regenerating');
+			} else {
+				$this->fonts[$font] = $cached_font_info;
+			}
+		}
+
+		if (!isset($this->fonts[$font]) && file_exists("$dir/$metrics_name")) {
+			// then rebuild the php_<font>.afm file from the <font>.afm file
+			$this->addMessage("openFont: build php file from $dir/$metrics_name");
+			$data = [];
+
+			// 20 => 'space'
+			$data['codeToName'] = [];
+
+			// Since we're not going to enable Unicode for the core fonts we need to use a font-based
+			// setting for Unicode support rather than a global setting.
+			$data['isUnicode'] = (strtolower(substr($metrics_name, -3)) !== 'afm');
+
+			$cidtogid = '';
+			if ($data['isUnicode']) {
+				$cidtogid = str_pad('', 256 * 256 * 2, "\x00");
+			}
+
+			$file = file("$dir/$metrics_name");
+
+			foreach ($file as $rowA) {
+				$row = trim($rowA);
+				$pos = strpos($row, ' ');
+
+				if ($pos) {
+					// then there must be some keyword
+					$key = substr($row, 0, $pos);
+					switch ($key) {
+						case 'FontName':
+						case 'FullName':
+						case 'FamilyName':
+						case 'PostScriptName':
+						case 'Weight':
+						case 'ItalicAngle':
+						case 'IsFixedPitch':
+						case 'CharacterSet':
+						case 'UnderlinePosition':
+						case 'UnderlineThickness':
+						case 'Version':
+						case 'EncodingScheme':
+						case 'CapHeight':
+						case 'XHeight':
+						case 'Ascender':
+						case 'Descender':
+						case 'StdHW':
+						case 'StdVW':
+						case 'StartCharMetrics':
+						case 'FontHeightOffset': // OAR - Added so we can offset the height calculation of a Windows font.  Otherwise it's too big.
+							$data[$key] = trim(substr($row, $pos));
+							break;
+
+						case 'FontBBox':
+							$data[$key] = explode(' ', trim(substr($row, $pos)));
+							break;
+
+						//C 39 ; WX 222 ; N quoteright ; B 53 463 157 718 ;
+						case 'C': // Found in AFM files
+							$bits = explode(';', trim($row));
+							$dtmp = ['C' => null, 'N' => null, 'WX' => null, 'B' => []];
+
+							foreach ($bits as $bit) {
+								$bits2 = explode(' ', trim($bit));
+								if (mb_strlen($bits2[0], '8bit') == 0) {
+									continue;
+								}
+
+								if (count($bits2) > 2) {
+									$dtmp[$bits2[0]] = [];
+									for ($i = 1; $i < count($bits2); $i++) {
+										$dtmp[$bits2[0]][] = $bits2[$i];
+									}
+								} else {
+									if (count($bits2) == 2) {
+										$dtmp[$bits2[0]] = $bits2[1];
+									}
+								}
+							}
+
+							$c = (int)$dtmp['C'];
+							$n = $dtmp['N'];
+							$width = floatval($dtmp['WX']);
+
+							if ($c >= 0) {
+								if (!ctype_xdigit($n) || $c != hexdec($n)) {
+									$data['codeToName'][$c] = $n;
+								}
+								$data['C'][$c] = $width;
+							} elseif (isset($n)) {
+								$data['C'][$n] = $width;
+							}
+
+							if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+								$data['MissingWidth'] = $width;
+							}
+
+							break;
+
+						// U 827 ; WX 0 ; N squaresubnosp ; G 675 ;
+						case 'U': // Found in UFM files
+							if (!$data['isUnicode']) {
+								break;
+							}
+
+							$bits = explode(';', trim($row));
+							$dtmp = ['G' => null, 'N' => null, 'U' => null, 'WX' => null];
+
+							foreach ($bits as $bit) {
+								$bits2 = explode(' ', trim($bit));
+								if (mb_strlen($bits2[0], '8bit') === 0) {
+									continue;
+								}
+
+								if (count($bits2) > 2) {
+									$dtmp[$bits2[0]] = [];
+									for ($i = 1; $i < count($bits2); $i++) {
+										$dtmp[$bits2[0]][] = $bits2[$i];
+									}
+								} else {
+									if (count($bits2) == 2) {
+										$dtmp[$bits2[0]] = $bits2[1];
+									}
+								}
+							}
+
+							$c = (int)$dtmp['U'];
+							$n = $dtmp['N'];
+							$glyph = $dtmp['G'];
+							$width = floatval($dtmp['WX']);
+
+							if ($c >= 0) {
+								// Set values in CID to GID map
+								if ($c >= 0 && $c < 0xFFFF && $glyph) {
+									$cidtogid[$c * 2] = chr($glyph >> 8);
+									$cidtogid[$c * 2 + 1] = chr($glyph & 0xFF);
+								}
+
+								if (!ctype_xdigit($n) || $c != hexdec($n)) {
+									$data['codeToName'][$c] = $n;
+								}
+								$data['C'][$c] = $width;
+							} elseif (isset($n)) {
+								$data['C'][$n] = $width;
+							}
+
+							if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+								$data['MissingWidth'] = $width;
+							}
+
+							break;
+
+						case 'KPX':
+							break; // don't include them as they are not used yet
+							//KPX Adieresis yacute -40
+							/*$bits = explode(' ', trim($row));
                             $data['KPX'][$bits[1]][$bits[2]] = $bits[3];
                             break;*/
-                    }
-                }
-            }
-
-            if ($this->compressionReady && $this->options['compression']) {
-                // then implement ZLIB based compression on CIDtoGID string
-                $data['CIDtoGID_Compressed'] = true;
-                $cidtogid = gzcompress($cidtogid, 6);
-            }
-            $data['CIDtoGID'] = base64_encode($cidtogid);
-            $data['_version_'] = $this->fontcacheVersion;
-            $this->fonts[$font] = $data;
-
-            //Because of potential trouble with php safe mode, expect that the folder already exists.
-            //If not existing, this will hit performance because of missing cached results.
-            if (is_dir($fontcache) && is_writable($fontcache)) {
-                file_put_contents("$fontcache/$cache_name", json_encode($data, JSON_PRETTY_PRINT));
-            }
-            $data = null;
-        }
-
-        if (!isset($this->fonts[$font])) {
-            $this->addMessage("openFont: no font file found for $font. Do you need to run load_font.php?");
-        }
-    }
-
-    /**
-     * if the font is not loaded then load it and make the required object
-     * else just make it the current font
-     * the encoding array can contain 'encoding'=> 'none','WinAnsiEncoding','MacRomanEncoding' or 'MacExpertEncoding'
-     * note that encoding='none' will need to be used for symbolic fonts
-     * and 'differences' => an array of mappings between numbers 0->255 and character names.
-     *
-     * @param string $fontName
-     * @param string $encoding
-     * @param bool $set
-     * @param bool $isSubsetting
-     * @return int
-     * @throws FontNotFoundException
-     */
-    function selectFont($fontName, $encoding = '', $set = true, $isSubsetting = true)
-    {
-        if ($fontName === null || $fontName === '') {
-            return $this->currentFontNum;
-        }
-
-        $ext = substr($fontName, -4);
-        if ($ext === '.afm' || $ext === '.ufm') {
-            $fontName = substr($fontName, 0, mb_strlen($fontName) - 4);
-        }
-
-        if (!isset($this->fonts[$fontName])) {
-            $this->addMessage("selectFont: selecting - $fontName - $encoding, $set");
-
-            // load the file
-            $this->openFont($fontName);
-
-            if (isset($this->fonts[$fontName])) {
-                $this->numObj++;
-                $this->numFonts++;
-
-                $font = &$this->fonts[$fontName];
-
-                $name = basename($fontName);
-                $options = ['name' => $name, 'fontFileName' => $fontName, 'isSubsetting' => $isSubsetting];
-
-                if (is_array($encoding)) {
-                    // then encoding and differences might be set
-                    if (isset($encoding['encoding'])) {
-                        $options['encoding'] = $encoding['encoding'];
-                    }
-
-                    if (isset($encoding['differences'])) {
-                        $options['differences'] = $encoding['differences'];
-                    }
-                } else {
-                    if (mb_strlen($encoding, '8bit')) {
-                        // then perhaps only the encoding has been set
-                        $options['encoding'] = $encoding;
-                    }
-                }
-
-                $this->o_font($this->numObj, 'new', $options);
-
-                if (file_exists("$fontName.ttf")) {
-                    $fileSuffix = 'ttf';
-                } elseif (file_exists("$fontName.TTF")) {
-                    $fileSuffix = 'TTF';
-                } elseif (file_exists("$fontName.pfb")) {
-                    $fileSuffix = 'pfb';
-                } elseif (file_exists("$fontName.PFB")) {
-                    $fileSuffix = 'PFB';
-                } else {
-                    $fileSuffix = '';
-                }
-
-                $font['fileSuffix'] = $fileSuffix;
-
-                $font['fontNum'] = $this->numFonts;
-                $font['isSubsetting'] = $isSubsetting && $font['isUnicode'] && strtolower($fileSuffix) === 'ttf';
-
-                // also set the differences here, note that this means that these will take effect only the
-                //first time that a font is selected, else they are ignored
-                if (isset($options['differences'])) {
-                    $font['differences'] = $options['differences'];
-                }
-            }
-        }
-
-        if ($set && isset($this->fonts[$fontName])) {
-            // so if for some reason the font was not set in the last one then it will not be selected
-            $this->currentBaseFont = $fontName;
-
-            // the next lines mean that if a new font is selected, then the current text state will be
-            // applied to it as well.
-            $this->currentFont = $this->currentBaseFont;
-            $this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
-        }
-
-        return $this->currentFontNum;
-    }
-
-    /**
-     * sets up the current font, based on the font families, and the current text state
-     * note that this system is quite flexible, a bold-italic font can be completely different to a
-     * italic-bold font, and even bold-bold will have to be defined within the family to have meaning
-     * This function is to be called whenever the currentTextState is changed, it will update
-     * the currentFont setting to whatever the appropriate family one is.
-     * If the user calls selectFont themselves then that will reset the currentBaseFont, and the currentFont
-     * This function will change the currentFont to whatever it should be, but will not change the
-     * currentBaseFont.
-     */
-    private function setCurrentFont()
-    {
-        //   if (strlen($this->currentBaseFont) == 0){
-        //     // then assume an initial font
-        //     $this->selectFont($this->defaultFont);
-        //   }
-        //   $cf = substr($this->currentBaseFont,strrpos($this->currentBaseFont,'/')+1);
-        //   if (strlen($this->currentTextState)
-        //     && isset($this->fontFamilies[$cf])
-        //       && isset($this->fontFamilies[$cf][$this->currentTextState])){
-        //     // then we are in some state or another
-        //     // and this font has a family, and the current setting exists within it
-        //     // select the font, then return it
-        //     $nf = substr($this->currentBaseFont,0,strrpos($this->currentBaseFont,'/')+1).$this->fontFamilies[$cf][$this->currentTextState];
-        //     $this->selectFont($nf,'',0);
-        //     $this->currentFont = $nf;
-        //     $this->currentFontNum = $this->fonts[$nf]['fontNum'];
-        //   } else {
-        //     // the this font must not have the right family member for the current state
-        //     // simply assume the base font
-        $this->currentFont = $this->currentBaseFont;
-        $this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
-        //  }
-    }
-
-    /**
-     * function for the user to find out what the ID is of the first page that was created during
-     * startup - useful if they wish to add something to it later.
-     *
-     * @return int
-     */
-    function getFirstPageId()
-    {
-        return $this->firstPageId;
-    }
-
-    /**
-     * add content to the currently active object
-     *
-     * @param $content
-     */
-    private function addContent($content)
-    {
-        $this->objects[$this->currentContents]['c'] .= $content;
-    }
-
-    /**
-     * sets the color for fill operations
-     *
-     * @param array $color
-     * @param bool  $force
-     */
-    function setColor($color, $force = false)
-    {
-        $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
-
-        if (!$force && $this->currentColor == $new_color) {
-            return;
-        }
-
-        if (isset($new_color[3])) {
-            $this->currentColor = $new_color;
-            $this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F k", $this->currentColor));
-        } else {
-            if (isset($new_color[2])) {
-                $this->currentColor = $new_color;
-                $this->addContent(vsprintf("\n%.3F %.3F %.3F rg", $this->currentColor));
-            }
-        }
-    }
-
-    /**
-     * @param string $fillRule
-     */
-    function setFillRule($fillRule)
-    {
-        if (!in_array($fillRule, ["nonzero", "evenodd"])) {
-            return;
-        }
-
-        $this->fillRule = $fillRule;
-    }
-
-    /**
-     * sets the color for stroke operations
-     *
-     * @param array $color
-     * @param bool  $force
-     */
-    function setStrokeColor($color, $force = false)
-    {
-        $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
-
-        if (!$force && $this->currentStrokeColor == $new_color) {
-            return;
-        }
-
-        if (isset($new_color[3])) {
-            $this->currentStrokeColor = $new_color;
-            $this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F K", $this->currentStrokeColor));
-        } else {
-            if (isset($new_color[2])) {
-                $this->currentStrokeColor = $new_color;
-                $this->addContent(vsprintf("\n%.3F %.3F %.3F RG", $this->currentStrokeColor));
-            }
-        }
-    }
-
-    /**
-     * Set the graphics state for compositions
-     *
-     * @param $parameters
-     */
-    function setGraphicsState($parameters)
-    {
-        // Create a new graphics state object if necessary
-        if (($gstate = array_search($parameters, $this->gstates)) === false) {
-            $this->numObj++;
-            $this->o_extGState($this->numObj, 'new', $parameters);
-            $gstate = $this->numStates;
-            $this->gstates[$gstate] = $parameters;
-        }
-        $this->addContent("\n/GS$gstate gs");
-    }
-
-    /**
-     * Set current blend mode & opacity for lines.
-     *
-     * Valid blend modes are:
-     *
-     * Normal, Multiply, Screen, Overlay, Darken, Lighten,
-     * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
-     * Exclusion
-     *
-     * @param string $mode    the blend mode to use
-     * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
-     */
-    function setLineTransparency($mode, $opacity)
-    {
-        static $blend_modes = [
-            "Normal",
-            "Multiply",
-            "Screen",
-            "Overlay",
-            "Darken",
-            "Lighten",
-            "ColorDogde",
-            "ColorBurn",
-            "HardLight",
-            "SoftLight",
-            "Difference",
-            "Exclusion"
-        ];
-
-        if (!in_array($mode, $blend_modes)) {
-            $mode = "Normal";
-        }
-
-        if (is_null($this->currentLineTransparency)) {
-            $this->currentLineTransparency = [];
-        }
-
-        if ($mode === (key_exists('mode', $this->currentLineTransparency) ?
-            $this->currentLineTransparency['mode'] : '') &&
-            $opacity === (key_exists('opacity', $this->currentLineTransparency) ?
-            $this->currentLineTransparency["opacity"] : '')) {
-            return;
-        }
-
-        $this->currentLineTransparency["mode"] = $mode;
-        $this->currentLineTransparency["opacity"] = $opacity;
-
-        $options = [
-            "BM" => "/$mode",
-            "CA" => (float)$opacity
-        ];
-
-        $this->setGraphicsState($options);
-    }
-
-    /**
-     * Set current blend mode & opacity for filled objects.
-     *
-     * Valid blend modes are:
-     *
-     * Normal, Multiply, Screen, Overlay, Darken, Lighten,
-     * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
-     * Exclusion
-     *
-     * @param string $mode    the blend mode to use
-     * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
-     */
-    function setFillTransparency($mode, $opacity)
-    {
-        static $blend_modes = [
-            "Normal",
-            "Multiply",
-            "Screen",
-            "Overlay",
-            "Darken",
-            "Lighten",
-            "ColorDogde",
-            "ColorBurn",
-            "HardLight",
-            "SoftLight",
-            "Difference",
-            "Exclusion"
-        ];
-
-        if (!in_array($mode, $blend_modes)) {
-            $mode = "Normal";
-        }
-
-        if (is_null($this->currentFillTransparency)) {
-            $this->currentFillTransparency = [];
-        }
-
-        if ($mode === (key_exists('mode', $this->currentFillTransparency) ?
-            $this->currentFillTransparency['mode'] : '') &&
-            $opacity === (key_exists('opacity', $this->currentFillTransparency) ?
-            $this->currentFillTransparency["opacity"] : '')) {
-            return;
-        }
-
-        $this->currentFillTransparency["mode"] = $mode;
-        $this->currentFillTransparency["opacity"] = $opacity;
-
-        $options = [
-            "BM" => "/$mode",
-            "ca" => (float)$opacity,
-        ];
-
-        $this->setGraphicsState($options);
-    }
-
-    /**
-     * draw a line from one set of coordinates to another
-     *
-     * @param float $x1
-     * @param float $y1
-     * @param float $x2
-     * @param float $y2
-     * @param bool  $stroke
-     */
-    function line($x1, $y1, $x2, $y2, $stroke = true)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F m %.3F %.3F l", $x1, $y1, $x2, $y2));
-
-        if ($stroke) {
-            $this->addContent(' S');
-        }
-    }
-
-    /**
-     * draw a bezier curve based on 4 control points
-     *
-     * @param float $x0
-     * @param float $y0
-     * @param float $x1
-     * @param float $y1
-     * @param float $x2
-     * @param float $y2
-     * @param float $x3
-     * @param float $y3
-     */
-    function curve($x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
-    {
-        // in the current line style, draw a bezier curve from (x0,y0) to (x3,y3) using the other two points
-        // as the control points for the curve.
-        $this->addContent(
-            sprintf("\n%.3F %.3F m %.3F %.3F %.3F %.3F %.3F %.3F c S", $x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
-        );
-    }
-
-    /**
-     * draw a part of an ellipse
-     *
-     * @param float $x0
-     * @param float $y0
-     * @param float $astart
-     * @param float $afinish
-     * @param float $r1
-     * @param float $r2
-     * @param float $angle
-     * @param int $nSeg
-     */
-    function partEllipse($x0, $y0, $astart, $afinish, $r1, $r2 = 0, $angle = 0, $nSeg = 8)
-    {
-        $this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, false);
-    }
-
-    /**
-     * draw a filled ellipse
-     *
-     * @param float $x0
-     * @param float $y0
-     * @param float $r1
-     * @param float $r2
-     * @param float $angle
-     * @param int $nSeg
-     * @param float $astart
-     * @param float $afinish
-     */
-    function filledEllipse($x0, $y0, $r1, $r2 = 0, $angle = 0, $nSeg = 8, $astart = 0, $afinish = 360)
-    {
-        $this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, true, true);
-    }
-
-    /**
-     * @param float $x
-     * @param float $y
-     */
-    function lineTo($x, $y)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F l", $x, $y));
-    }
-
-    /**
-     * @param float $x
-     * @param float $y
-     */
-    function moveTo($x, $y)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F m", $x, $y));
-    }
-
-    /**
-     * draw a bezier curve based on 4 control points
-     *
-     * @param float $x1
-     * @param float $y1
-     * @param float $x2
-     * @param float $y2
-     * @param float $x3
-     * @param float $y3
-     */
-    function curveTo($x1, $y1, $x2, $y2, $x3, $y3)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F %.3F %.3F c", $x1, $y1, $x2, $y2, $x3, $y3));
-    }
-
-    /**
-     * draw a bezier curve based on 4 control points
-     *
-     * @param float $cpx
-     * @param float $cpy
-     * @param float $x
-     * @param float $y
-     */
-    function quadTo($cpx, $cpy, $x, $y)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F v", $cpx, $cpy, $x, $y));
-    }
-
-    function closePath()
-    {
-        $this->addContent(' h');
-    }
-
-    function endPath()
-    {
-        $this->addContent(' n');
-    }
-
-    /**
-     * draw an ellipse
-     * note that the part and filled ellipse are just special cases of this function
-     *
-     * draws an ellipse in the current line style
-     * centered at $x0,$y0, radii $r1,$r2
-     * if $r2 is not set, then a circle is drawn
-     * from $astart to $afinish, measured in degrees, running anti-clockwise from the right hand side of the ellipse.
-     * nSeg is not allowed to be less than 2, as this will simply draw a line (and will even draw a
-     * pretty crappy shape at 2, as we are approximating with bezier curves.
-     *
-     * @param float $x0
-     * @param float $y0
-     * @param float $r1
-     * @param float $r2
-     * @param float $angle
-     * @param int   $nSeg
-     * @param float $astart
-     * @param float $afinish
-     * @param bool  $close
-     * @param bool  $fill
-     * @param bool  $stroke
-     * @param bool  $incomplete
-     */
-    function ellipse(
-        $x0,
-        $y0,
-        $r1,
-        $r2 = 0,
-        $angle = 0,
-        $nSeg = 8,
-        $astart = 0,
-        $afinish = 360,
-        $close = true,
-        $fill = false,
-        $stroke = true,
-        $incomplete = false
-    ) {
-        if ($r1 == 0) {
-            return;
-        }
-
-        if ($r2 == 0) {
-            $r2 = $r1;
-        }
-
-        if ($nSeg < 2) {
-            $nSeg = 2;
-        }
-
-        $astart = deg2rad((float)$astart);
-        $afinish = deg2rad((float)$afinish);
-        $totalAngle = $afinish - $astart;
-
-        $dt = $totalAngle / $nSeg;
-        $dtm = $dt / 3;
-
-        if ($angle != 0) {
-            $a = -1 * deg2rad((float)$angle);
-
-            $this->addContent(
-                sprintf("\n q %.3F %.3F %.3F %.3F %.3F %.3F cm", cos($a), -sin($a), sin($a), cos($a), $x0, $y0)
-            );
-
-            $x0 = 0;
-            $y0 = 0;
-        }
-
-        $t1 = $astart;
-        $a0 = $x0 + $r1 * cos($t1);
-        $b0 = $y0 + $r2 * sin($t1);
-        $c0 = -$r1 * sin($t1);
-        $d0 = $r2 * cos($t1);
-
-        if (!$incomplete) {
-            $this->addContent(sprintf("\n%.3F %.3F m ", $a0, $b0));
-        }
-
-        for ($i = 1; $i <= $nSeg; $i++) {
-            // draw this bit of the total curve
-            $t1 = $i * $dt + $astart;
-            $a1 = $x0 + $r1 * cos($t1);
-            $b1 = $y0 + $r2 * sin($t1);
-            $c1 = -$r1 * sin($t1);
-            $d1 = $r2 * cos($t1);
-
-            $this->addContent(
-                sprintf(
-                    "\n%.3F %.3F %.3F %.3F %.3F %.3F c",
-                    ($a0 + $c0 * $dtm),
-                    ($b0 + $d0 * $dtm),
-                    ($a1 - $c1 * $dtm),
-                    ($b1 - $d1 * $dtm),
-                    $a1,
-                    $b1
-                )
-            );
-
-            $a0 = $a1;
-            $b0 = $b1;
-            $c0 = $c1;
-            $d0 = $d1;
-        }
-
-        if (!$incomplete) {
-            if ($fill) {
-                $this->addContent(' f');
-            }
-
-            if ($stroke) {
-                if ($close) {
-                    $this->addContent(' s'); // small 's' signifies closing the path as well
-                } else {
-                    $this->addContent(' S');
-                }
-            }
-        }
-
-        if ($angle != 0) {
-            $this->addContent(' Q');
-        }
-    }
-
-    /**
-     * this sets the line drawing style.
-     * width, is the thickness of the line in user units
-     * cap is the type of cap to put on the line, values can be 'butt','round','square'
-     *    where the diffference between 'square' and 'butt' is that 'square' projects a flat end past the
-     *    end of the line.
-     * join can be 'miter', 'round', 'bevel'
-     * dash is an array which sets the dash pattern, is a series of length values, which are the lengths of the
-     *   on and off dashes.
-     *   (2) represents 2 on, 2 off, 2 on , 2 off ...
-     *   (2,1) is 2 on, 1 off, 2 on, 1 off.. etc
-     * phase is a modifier on the dash pattern which is used to shift the point at which the pattern starts.
-     *
-     * @param float  $width
-     * @param string $cap
-     * @param string $join
-     * @param array  $dash
-     * @param int    $phase
-     */
-    function setLineStyle($width = 1, $cap = '', $join = '', $dash = '', $phase = 0)
-    {
-        // this is quite inefficient in that it sets all the parameters whenever 1 is changed, but will fix another day
-        $string = '';
-
-        if ($width > 0) {
-            $string .= "$width w";
-        }
-
-        $ca = ['butt' => 0, 'round' => 1, 'square' => 2];
-
-        if (isset($ca[$cap])) {
-            $string .= " $ca[$cap] J";
-        }
-
-        $ja = ['miter' => 0, 'round' => 1, 'bevel' => 2];
-
-        if (isset($ja[$join])) {
-            $string .= " $ja[$join] j";
-        }
-
-        if (is_array($dash)) {
-            $string .= ' [ ' . implode(' ', $dash) . " ] $phase d";
-        }
-
-        $this->currentLineStyle = $string;
-        $this->addContent("\n$string");
-    }
-
-    /**
-     * draw a polygon, the syntax for this is similar to the GD polygon command
-     *
-     * @param float[] $p
-     * @param bool    $fill
-     */
-    public function polygon(array $p, bool $fill = false): void
-    {
-        $this->addContent(sprintf("\n%.3F %.3F m ", $p[0], $p[1]));
-
-        $n = count($p);
-        for ($i = 2; $i < $n; $i = $i + 2) {
-            $this->addContent(sprintf("%.3F %.3F l ", $p[$i], $p[$i + 1]));
-        }
-
-        if ($fill) {
-            $this->addContent(' f');
-        } else {
-            $this->addContent(' S');
-        }
-    }
-
-    /**
-     * a filled rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
-     * the coordinates of the upper-right corner
-     *
-     * @param float $x1
-     * @param float $y1
-     * @param float $width
-     * @param float $height
-     */
-    function filledRectangle($x1, $y1, $width, $height)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re f", $x1, $y1, $width, $height));
-    }
-
-    /**
-     * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
-     * the coordinates of the upper-right corner
-     *
-     * @param float $x1
-     * @param float $y1
-     * @param float $width
-     * @param float $height
-     */
-    function rectangle($x1, $y1, $width, $height)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re S", $x1, $y1, $width, $height));
-    }
-
-    /**
-     * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
-     * the coordinates of the upper-right corner
-     *
-     * @param float $x1
-     * @param float $y1
-     * @param float $width
-     * @param float $height
-     */
-    function rect($x1, $y1, $width, $height)
-    {
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re", $x1, $y1, $width, $height));
-    }
-
-    function stroke()
-    {
-        $this->addContent("\nS");
-    }
-
-    function fill()
-    {
-        $this->addContent("\nf" . ($this->fillRule === "evenodd" ? "*" : ""));
-    }
-
-    function fillStroke()
-    {
-        $this->addContent("\nb" . ($this->fillRule === "evenodd" ? "*" : ""));
-    }
-
-    /**
-     * @param string $subtype
-     * @param integer $x
-     * @param integer $y
-     * @param integer $w
-     * @param integer $h
-     * @return int
-     */
-    function addXObject($subtype, $x, $y, $w, $h)
-    {
-        $id = ++$this->numObj;
-        $this->o_xobject($id, 'new', ['Subtype' => $subtype, 'bbox' => [$x, $y, $w, $h]]);
-        return $id;
-    }
-
-    /**
-     * @param integer $numXObject
-     * @param string $type
-     * @param array $options
-     */
-    function setXObjectResource($numXObject, $type, $options)
-    {
-        if (in_array($type, ['procset', 'font', 'xObject'])) {
-            $this->o_xobject($numXObject, $type, $options);
-        }
-    }
-
-    /**
-     * add signature
-     *
-     * $fieldSigId = $cpdf->addFormField(Cpdf::ACROFORM_FIELD_SIG, 'Signature1', 0, 0, 0, 0, 0);
-     *
-     * $signatureId = $cpdf->addSignature([
-     *   'signcert' => file_get_contents('dompdf.crt'),
-     *   'privkey' => file_get_contents('dompdf.key'),
-     *   'password' => 'password',
-     *   'name' => 'DomPDF DEMO',
-     *   'location' => 'Home',
-     *   'reason' => 'First Form',
-     *   'contactinfo' => 'info'
-     * ]);
-     * $cpdf->setFormFieldValue($fieldSigId, "$signatureId 0 R");
-     *
-     * @param string $signcert
-     * @param string $privkey
-     * @param string $password
-     * @param string|null $name
-     * @param string|null $location
-     * @param string|null $reason
-     * @param string|null $contactinfo
-     * @return int
-     */
-    function addSignature($signcert, $privkey, $password = '', $name = null, $location = null, $reason = null, $contactinfo = null) {
-        $sigId = ++$this->numObj;
-        $this->o_sig($sigId, 'new', [
-          'SignCert' => $signcert,
-          'PrivKey' => $privkey,
-          'Password' => $password,
-          'Name' => $name,
-          'Location' => $location,
-          'Reason' => $reason,
-          'ContactInfo' => $contactinfo
-        ]);
-
-        return $sigId;
-    }
-
-    /**
-     * add field to form
-     *
-     * @param string $type ACROFORM_FIELD_*
-     * @param string $name
-     * @param $x0
-     * @param $y0
-     * @param $x1
-     * @param $y1
-     * @param integer $ff Field Flag ACROFORM_FIELD_*_*
-     * @param float $size
-     * @param array $color
-     * @return int
-     */
-    public function addFormField($type, $name, $x0, $y0, $x1, $y1, $ff = 0, $size = 10.0, $color = [0, 0, 0])
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $color = implode(' ', $color) . ' rg';
-
-        $currentFontNum = $this->currentFontNum;
-        $font = array_filter(
-            $this->objects[$this->currentNode]['info']['fonts'],
-            function ($item) use ($currentFontNum) { return $item['fontNum'] == $currentFontNum; }
-        );
-
-        $this->o_acroform($this->acroFormId, 'font',
-          ['objNum' => $font[0]['objNum'], 'fontNum' => $font[0]['fontNum']]);
-
-        $fieldId = ++$this->numObj;
-        $this->o_field($fieldId, 'new', [
-          'rect' => [$x0, $y0, $x1, $y1],
-          'F' => 4,
-          'FT' => "/$type",
-          'T' => $name,
-          'Ff' => $ff,
-          'pageid' => $this->currentPage,
-          'da' => "$color /F$this->currentFontNum " . sprintf('%.1F Tf ', $size)
-        ]);
-
-        return $fieldId;
-    }
-
-    /**
-     * set Field value
-     *
-     * @param integer $numFieldObj
-     * @param string $value
-     */
-    public function setFormFieldValue($numFieldObj, $value)
-    {
-        $this->o_field($numFieldObj, 'set', ['value' => $value]);
-    }
-
-    /**
-     * set Field value (reference)
-     *
-     * @param integer $numFieldObj
-     * @param integer $numObj Object number
-     */
-    public function setFormFieldRefValue($numFieldObj, $numObj)
-    {
-        $this->o_field($numFieldObj, 'set', ['refvalue' => $numObj]);
-    }
-
-    /**
-     * set Field Appearanc (reference)
-     *
-     * @param integer $numFieldObj
-     * @param integer $normalNumObj
-     * @param integer|null $rolloverNumObj
-     * @param integer|null $downNumObj
-     */
-    public function setFormFieldAppearance($numFieldObj, $normalNumObj, $rolloverNumObj = null, $downNumObj = null)
-    {
-        $appearance['N'] = $normalNumObj;
-
-        if ($rolloverNumObj !== null) {
-            $appearance['R'] = $rolloverNumObj;
-        }
-
-        if ($downNumObj !== null) {
-            $appearance['D'] = $downNumObj;
-        }
-
-        $this->o_field($numFieldObj, 'set', ['appearance' => $appearance]);
-    }
-
-    /**
-     * set Choice Field option values
-     *
-     * @param integer $numFieldObj
-     * @param array $value
-     */
-    public function setFormFieldOpt($numFieldObj, $value)
-    {
-        $this->o_field($numFieldObj, 'set', ['options' => $value]);
-    }
-
-    /**
-     * add form to document
-     *
-     * @param integer $sigFlags
-     * @param boolean $needAppearances
-     */
-    public function addForm($sigFlags = 0, $needAppearances = false)
-    {
-        $this->acroFormId = ++$this->numObj;
-        $this->o_acroform($this->acroFormId, 'new', [
-          'NeedAppearances' => $needAppearances ? 'true' : 'false',
-          'SigFlags' => $sigFlags
-        ]);
-    }
-
-    /**
-     * save the current graphic state
-     */
-    function save()
-    {
-        // we must reset the color cache or it will keep bad colors after clipping
-        $this->currentColor = null;
-        $this->currentStrokeColor = null;
-        $this->addContent("\nq");
-    }
-
-    /**
-     * restore the last graphic state
-     */
-    function restore()
-    {
-        // we must reset the color cache or it will keep bad colors after clipping
-        $this->currentColor = null;
-        $this->currentStrokeColor = null;
-        $this->addContent("\nQ");
-    }
-
-    /**
-     * draw a clipping rectangle, all the elements added after this will be clipped
-     *
-     * @param float $x1
-     * @param float $y1
-     * @param float $width
-     * @param float $height
-     */
-    function clippingRectangle($x1, $y1, $width, $height)
-    {
-        $this->save();
-        $this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re W n", $x1, $y1, $width, $height));
-    }
-
-    /**
-     * draw a clipping rounded rectangle, all the elements added after this will be clipped
-     *
-     * @param float $x1
-     * @param float $y1
-     * @param float $w
-     * @param float $h
-     * @param float $rTL
-     * @param float $rTR
-     * @param float $rBR
-     * @param float $rBL
-     */
-    function clippingRectangleRounded($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL)
-    {
-        $this->save();
-
-        // start: top edge, left end
-        $this->addContent(sprintf("\n%.3F %.3F m ", $x1, $y1 - $rTL + $h));
-
-        // line: bottom edge, left end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1, $y1 + $rBL));
-
-        // curve: bottom-left corner
-        $this->ellipse($x1 + $rBL, $y1 + $rBL, $rBL, 0, 0, 8, 180, 270, false, false, false, true);
-
-        // line: right edge, bottom end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w - $rBR, $y1));
-
-        // curve: bottom-right corner
-        $this->ellipse($x1 + $w - $rBR, $y1 + $rBR, $rBR, 0, 0, 8, 270, 360, false, false, false, true);
-
-        // line: right edge, top end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w, $y1 + $h - $rTR));
-
-        // curve: bottom-right corner
-        $this->ellipse($x1 + $w - $rTR, $y1 + $h - $rTR, $rTR, 0, 0, 8, 0, 90, false, false, false, true);
-
-        // line: bottom edge, right end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rTL, $y1 + $h));
-
-        // curve: top-right corner
-        $this->ellipse($x1 + $rTL, $y1 + $h - $rTL, $rTL, 0, 0, 8, 90, 180, false, false, false, true);
-
-        // line: top edge, left end
-        $this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rBL, $y1));
-
-        // Close & clip
-        $this->addContent(" W n");
-    }
-
-    /**
-     * draw a clipping polygon, the syntax for this is similar to the GD polygon command
-     *
-     * @param float[] $p
-     */
-    public function clippingPolygon(array $p): void
-    {
-        $this->save();
-
-        $this->addContent(sprintf("\n%.3F %.3F m ", $p[0], $p[1]));
-
-        $n = count($p);
-        for ($i = 2; $i < $n; $i = $i + 2) {
-            $this->addContent(sprintf("%.3F %.3F l ", $p[$i], $p[$i + 1]));
-        }
-
-        $this->addContent("W n");
-    }
-
-    /**
-     * ends the last clipping shape
-     */
-    function clippingEnd()
-    {
-        $this->restore();
-    }
-
-    /**
-     * scale
-     *
-     * @param float $s_x scaling factor for width as percent
-     * @param float $s_y scaling factor for height as percent
-     * @param float $x   Origin abscissa
-     * @param float $y   Origin ordinate
-     */
-    function scale($s_x, $s_y, $x, $y)
-    {
-        $y = $this->currentPageSize["height"] - $y;
-
-        $tm = [
-            $s_x,
-            0,
-            0,
-            $s_y,
-            $x * (1 - $s_x),
-            $y * (1 - $s_y)
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * translate
-     *
-     * @param float $t_x movement to the right
-     * @param float $t_y movement to the bottom
-     */
-    function translate($t_x, $t_y)
-    {
-        $tm = [
-            1,
-            0,
-            0,
-            1,
-            $t_x,
-            -$t_y
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * rotate
-     *
-     * @param float $angle angle in degrees for counter-clockwise rotation
-     * @param float $x     Origin abscissa
-     * @param float $y     Origin ordinate
-     */
-    function rotate($angle, $x, $y)
-    {
-        $y = $this->currentPageSize["height"] - $y;
-
-        $a = deg2rad($angle);
-        $cos_a = cos($a);
-        $sin_a = sin($a);
-
-        $tm = [
-            $cos_a,
-            -$sin_a,
-            $sin_a,
-            $cos_a,
-            $x - $sin_a * $y - $cos_a * $x,
-            $y - $cos_a * $y + $sin_a * $x,
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * skew
-     *
-     * @param float $angle_x
-     * @param float $angle_y
-     * @param float $x Origin abscissa
-     * @param float $y Origin ordinate
-     */
-    function skew($angle_x, $angle_y, $x, $y)
-    {
-        $y = $this->currentPageSize["height"] - $y;
-
-        $tan_x = tan(deg2rad($angle_x));
-        $tan_y = tan(deg2rad($angle_y));
-
-        $tm = [
-            1,
-            -$tan_y,
-            -$tan_x,
-            1,
-            $tan_x * $y,
-            $tan_y * $x,
-        ];
-
-        $this->transform($tm);
-    }
-
-    /**
-     * apply graphic transformations
-     *
-     * @param array $tm transformation matrix
-     */
-    function transform($tm)
-    {
-        $this->addContent(vsprintf("\n %.3F %.3F %.3F %.3F %.3F %.3F cm", $tm));
-    }
-
-    /**
-     * add a new page to the document
-     * this also makes the new page the current active object
-     *
-     * @param int $insert
-     * @param int $id
-     * @param string $pos
-     * @return int
-     */
-    function newPage($insert = 0, $id = 0, $pos = 'after')
-    {
-        // if there is a state saved, then go up the stack closing them
-        // then on the new page, re-open them with the right setings
-
-        if ($this->nStateStack) {
-            for ($i = $this->nStateStack; $i >= 1; $i--) {
-                $this->restoreState($i);
-            }
-        }
-
-        $this->numObj++;
-
-        if ($insert) {
-            // the id from the ezPdf class is the id of the contents of the page, not the page object itself
-            // query that object to find the parent
-            $rid = $this->objects[$id]['onPage'];
-            $opt = ['rid' => $rid, 'pos' => $pos];
-            $this->o_page($this->numObj, 'new', $opt);
-        } else {
-            $this->o_page($this->numObj, 'new');
-        }
-
-        // if there is a stack saved, then put that onto the page
-        if ($this->nStateStack) {
-            for ($i = 1; $i <= $this->nStateStack; $i++) {
-                $this->saveState($i);
-            }
-        }
-
-        // and if there has been a stroke or fill color set, then transfer them
-        if (isset($this->currentColor)) {
-            $this->setColor($this->currentColor, true);
-        }
-
-        if (isset($this->currentStrokeColor)) {
-            $this->setStrokeColor($this->currentStrokeColor, true);
-        }
-
-        // if there is a line style set, then put this in too
-        if (mb_strlen($this->currentLineStyle, '8bit')) {
-            $this->addContent("\n$this->currentLineStyle");
-        }
-
-        // the call to the o_page object set currentContents to the present page, so this can be returned as the page id
-        return $this->currentContents;
-    }
-
-    /**
-     * Streams the PDF to the client.
-     *
-     * @param string $filename The filename to present to the client.
-     * @param array $options Associative array: 'compress' => 1 or 0 (default 1); 'Attachment' => 1 or 0 (default 1).
-     */
-    function stream($filename = "document.pdf", $options = [])
-    {
-        if (headers_sent()) {
-            die("Unable to stream pdf: headers already sent");
-        }
-
-        if (!isset($options["compress"])) $options["compress"] = true;
-        if (!isset($options["Attachment"])) $options["Attachment"] = true;
-
-        $debug = !$options['compress'];
-        $tmp = ltrim($this->output($debug));
-
-        header("Cache-Control: private");
-        header("Content-Type: application/pdf");
-        header("Content-Length: " . mb_strlen($tmp, "8bit"));
-
-        $filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
-        $attachment = $options["Attachment"] ? "attachment" : "inline";
-
-        $encoding = mb_detect_encoding($filename);
-        $fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding);
-        $fallbackfilename = str_replace("\"", "", $fallbackfilename);
-        $encodedfilename = rawurlencode($filename);
-
-        $contentDisposition = "Content-Disposition: $attachment; filename=\"$fallbackfilename\"";
-        if ($fallbackfilename !== $filename) {
-            $contentDisposition .= "; filename*=UTF-8''$encodedfilename";
-        }
-        header($contentDisposition);
-
-        echo $tmp;
-        flush();
-    }
-
-    /**
-     * return the height in units of the current font in the given size
-     *
-     * @param float $size
-     *
-     * @return float
-     */
-    public function getFontHeight(float $size): float
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $font = $this->fonts[$this->currentFont];
-
-        // for the current font, and the given size, what is the height of the font in user units
-        if (isset($font['Ascender']) && isset($font['Descender'])) {
-            $h = $font['Ascender'] - $font['Descender'];
-        } else {
-            $h = $font['FontBBox'][3] - $font['FontBBox'][1];
-        }
-
-        // have to adjust by a font offset for Windows fonts.  unfortunately it looks like
-        // the bounding box calculations are wrong and I don't know why.
-        if (isset($font['FontHeightOffset'])) {
-            // For CourierNew from Windows this needs to be -646 to match the
-            // Adobe native Courier font.
-            //
-            // For FreeMono from GNU this needs to be -337 to match the
-            // Courier font.
-            //
-            // Both have been added manually to the .afm and .ufm files.
-            $h += (int)$font['FontHeightOffset'];
-        }
-
-        return $size * $h / 1000;
-    }
-
-    /**
-     * @param float $size
-     *
-     * @return float
-     */
-    public function getFontXHeight(float $size): float
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $font = $this->fonts[$this->currentFont];
-
-        // for the current font, and the given size, what is the height of the font in user units
-        if (isset($font['XHeight'])) {
-            $xh = $font['Ascender'] - $font['Descender'];
-        } else {
-            $xh = $this->getFontHeight($size) / 2;
-        }
-
-        return $size * $xh / 1000;
-    }
-
-    /**
-     * return the font descender, this will normally return a negative number
-     * if you add this number to the baseline, you get the level of the bottom of the font
-     * it is in the pdf user units
-     *
-     * @param float $size
-     *
-     * @return float
-     */
-    public function getFontDescender(float $size): float
-    {
-        // note that this will most likely return a negative value
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        //$h = $this->fonts[$this->currentFont]['FontBBox'][1];
-        $h = $this->fonts[$this->currentFont]['Descender'];
-
-        return $size * $h / 1000;
-    }
-
-    /**
-     * filter the text, this is applied to all text just before being inserted into the pdf document
-     * it escapes the various things that need to be escaped, and so on
-     *
-     * @param $text
-     * @param bool $bom
-     * @param bool $convert_encoding
-     * @return string
-     */
-    function filterText($text, $bom = true, $convert_encoding = true)
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        if ($convert_encoding) {
-            $cf = $this->currentFont;
-            if (isset($this->fonts[$cf]) && $this->fonts[$cf]['isUnicode']) {
-                $text = $this->utf8toUtf16BE($text, $bom);
-            } else {
-                //$text = html_entity_decode($text, ENT_QUOTES);
-                $text = mb_convert_encoding($text, self::$targetEncoding, 'UTF-8');
-            }
-        } elseif ($bom) {
-            $text = $this->utf8toUtf16BE($text, $bom);
-        }
-
-        // the chr(13) substitution fixes a bug seen in TCPDF (bug #1421290)
-        return strtr($text, [')' => '\\)', '(' => '\\(', '\\' => '\\\\', chr(13) => '\r']);
-    }
-
-    /**
-     * return array containing codepoints (UTF-8 character values) for the
-     * string passed in.
-     *
-     * based on the excellent TCPDF code by Nicola Asuni and the
-     * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
-     *
-     * @param string $text UTF-8 string to process
-     * @return array UTF-8 codepoints array for the string
-     */
-    function utf8toCodePointsArray(&$text)
-    {
-        $length = mb_strlen($text, '8bit'); // http://www.php.net/manual/en/function.mb-strlen.php#77040
-        $unicode = []; // array containing unicode values
-        $bytes = []; // array containing single character byte sequences
-        $numbytes = 1; // number of octets needed to represent the UTF-8 character
-
-        for ($i = 0; $i < $length; $i++) {
-            $c = ord($text[$i]); // get one string character at time
-            if (count($bytes) === 0) { // get starting octect
-                if ($c <= 0x7F) {
-                    $unicode[] = $c; // use the character "as is" because is ASCII
-                    $numbytes = 1;
-                } elseif (($c >> 0x05) === 0x06) { // 2 bytes character (0x06 = 110 BIN)
-                    $bytes[] = ($c - 0xC0) << 0x06;
-                    $numbytes = 2;
-                } elseif (($c >> 0x04) === 0x0E) { // 3 bytes character (0x0E = 1110 BIN)
-                    $bytes[] = ($c - 0xE0) << 0x0C;
-                    $numbytes = 3;
-                } elseif (($c >> 0x03) === 0x1E) { // 4 bytes character (0x1E = 11110 BIN)
-                    $bytes[] = ($c - 0xF0) << 0x12;
-                    $numbytes = 4;
-                } else {
-                    // use replacement character for other invalid sequences
-                    $unicode[] = 0xFFFD;
-                    $bytes = [];
-                    $numbytes = 1;
-                }
-            } elseif (($c >> 0x06) === 0x02) { // bytes 2, 3 and 4 must start with 0x02 = 10 BIN
-                $bytes[] = $c - 0x80;
-                if (count($bytes) === $numbytes) {
-                    // compose UTF-8 bytes to a single unicode value
-                    $c = $bytes[0];
-                    for ($j = 1; $j < $numbytes; $j++) {
-                        $c += ($bytes[$j] << (($numbytes - $j - 1) * 0x06));
-                    }
-                    if ((($c >= 0xD800) and ($c <= 0xDFFF)) or ($c >= 0x10FFFF)) {
-                        // The definition of UTF-8 prohibits encoding character numbers between
-                        // U+D800 and U+DFFF, which are reserved for use with the UTF-16
-                        // encoding form (as surrogate pairs) and do not directly represent
-                        // characters.
-                        $unicode[] = 0xFFFD; // use replacement character
-                    } else {
-                        $unicode[] = $c; // add char to array
-                    }
-                    // reset data for next char
-                    $bytes = [];
-                    $numbytes = 1;
-                }
-            } else {
-                // use replacement character for other invalid sequences
-                $unicode[] = 0xFFFD;
-                $bytes = [];
-                $numbytes = 1;
-            }
-        }
-
-        return $unicode;
-    }
-
-    /**
-     * convert UTF-8 to UTF-16 with an additional byte order marker
-     * at the front if required.
-     *
-     * based on the excellent TCPDF code by Nicola Asuni and the
-     * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
-     *
-     * @param string  $text UTF-8 string to process
-     * @param boolean $bom  whether to add the byte order marker
-     * @return string UTF-16 result string
-     */
-    function utf8toUtf16BE(&$text, $bom = true)
-    {
-        $out = $bom ? "\xFE\xFF" : '';
-
-        $unicode = $this->utf8toCodePointsArray($text);
-        foreach ($unicode as $c) {
-            if ($c === 0xFFFD) {
-                $out .= "\xFF\xFD"; // replacement character
-            } elseif ($c < 0x10000) {
-                $out .= chr($c >> 0x08) . chr($c & 0xFF);
-            } else {
-                $c -= 0x10000;
-                $w1 = 0xD800 | ($c >> 0x10);
-                $w2 = 0xDC00 | ($c & 0x3FF);
-                $out .= chr($w1 >> 0x08) . chr($w1 & 0xFF) . chr($w2 >> 0x08) . chr($w2 & 0xFF);
-            }
-        }
-
-        return $out;
-    }
-
-    /**
-     * given a start position and information about how text is to be laid out, calculate where
-     * on the page the text will end
-     *
-     * @param $x
-     * @param $y
-     * @param $angle
-     * @param $size
-     * @param $wa
-     * @param $text
-     * @return array
-     */
-    private function getTextPosition($x, $y, $angle, $size, $wa, $text)
-    {
-        // given this information return an array containing x and y for the end position as elements 0 and 1
-        $w = $this->getTextWidth($size, $text);
-
-        // need to adjust for the number of spaces in this text
-        $words = explode(' ', $text);
-        $nspaces = count($words) - 1;
-        $w += $wa * $nspaces;
-        $a = deg2rad((float)$angle);
-
-        return [cos($a) * $w + $x, -sin($a) * $w + $y];
-    }
-
-    /**
-     * Callback method used by smallCaps
-     *
-     * @param array $matches
-     *
-     * @return string
-     */
-    function toUpper($matches)
-    {
-        return mb_strtoupper($matches[0]);
-    }
-
-    function concatMatches($matches)
-    {
-        $str = "";
-        foreach ($matches as $match) {
-            $str .= $match[0];
-        }
-
-        return $str;
-    }
-
-    /**
-     * register text for font subsetting
-     *
-     * @param string $font
-     * @param string $text
-     */
-    function registerText($font, $text)
-    {
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
-            return;
-        }
-
-        if (!isset($this->stringSubsets[$font])) {
-            $base_subset = "\u{fffd}\u{fffe}\u{ffff}";
-            $this->stringSubsets[$font] = $this->utf8toCodePointsArray($base_subset);
-        }
-
-        $this->stringSubsets[$font] = array_unique(
-            array_merge($this->stringSubsets[$font], $this->utf8toCodePointsArray($text))
-        );
-    }
-
-    /**
-     * add text to the document, at a specified location, size and angle on the page
-     *
-     * @param float  $x
-     * @param float  $y
-     * @param float  $size
-     * @param string $text
-     * @param float  $angle
-     * @param float  $wordSpaceAdjust
-     * @param float  $charSpaceAdjust
-     * @param bool   $smallCaps
-     */
-    function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0, $charSpaceAdjust = 0, $smallCaps = false)
-    {
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $text = str_replace(["\r", "\n"], "", $text);
-
-        // if ($smallCaps) {
-        //     preg_match_all("/(\P{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
-        //     $lower = $this->concatMatches($matches);
-        //     d($lower);
-
-        //     preg_match_all("/(\p{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
-        //     $other = $this->concatMatches($matches);
-        //     d($other);
-
-        //     $text = preg_replace_callback("/\p{Ll}/u", array($this, "toUpper"), $text);
-        // }
-
-        // if there are any open callbacks, then they should be called, to show the start of the line
-        if ($this->nCallback > 0) {
-            for ($i = $this->nCallback; $i > 0; $i--) {
-                // call each function
-                $info = [
-                    'x'         => $x,
-                    'y'         => $y,
-                    'angle'     => $angle,
-                    'status'    => 'sol',
-                    'p'         => $this->callback[$i]['p'],
-                    'nCallback' => $this->callback[$i]['nCallback'],
-                    'height'    => $this->callback[$i]['height'],
-                    'descender' => $this->callback[$i]['descender']
-                ];
-
-                $func = $this->callback[$i]['f'];
-                $this->$func($info);
-            }
-        }
-
-        if ($angle == 0) {
-            $this->addContent(sprintf("\nBT %.3F %.3F Td", $x, $y));
-        } else {
-            $a = deg2rad((float)$angle);
-            $this->addContent(
-                sprintf("\nBT %.3F %.3F %.3F %.3F %.3F %.3F Tm", cos($a), -sin($a), sin($a), cos($a), $x, $y)
-            );
-        }
-
-        if ($wordSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tw", $wordSpaceAdjust));
-        }
-
-        if ($charSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tc", $charSpaceAdjust));
-        }
-
-        $len = mb_strlen($text);
-        $start = 0;
-
-        if ($start < $len) {
-            $part = $text; // OAR - Don't need this anymore, given that $start always equals zero.  substr($text, $start);
-            $place_text = $this->filterText($part, false);
-            // modify unicode text so that extra word spacing is manually implemented (bug #)
-            if ($this->fonts[$this->currentFont]['isUnicode'] && $wordSpaceAdjust != 0) {
-                $space_scale = 1000 / $size;
-                $place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20" . (-round($space_scale * $wordSpaceAdjust)) . "\x00\x20(", $place_text);
-            }
-            $this->addContent(" /F$this->currentFontNum " . sprintf('%.1F Tf ', $size));
-            $this->addContent(" [($place_text)] TJ");
-        }
-
-        if ($wordSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tw", 0));
-        }
-
-        if ($charSpaceAdjust != 0) {
-            $this->addContent(sprintf(" %.3F Tc", 0));
-        }
-
-        $this->addContent(' ET');
-
-        // if there are any open callbacks, then they should be called, to show the end of the line
-        if ($this->nCallback > 0) {
-            for ($i = $this->nCallback; $i > 0; $i--) {
-                // call each function
-                $tmp = $this->getTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, $text);
-                $info = [
-                    'x'         => $tmp[0],
-                    'y'         => $tmp[1],
-                    'angle'     => $angle,
-                    'status'    => 'eol',
-                    'p'         => $this->callback[$i]['p'],
-                    'nCallback' => $this->callback[$i]['nCallback'],
-                    'height'    => $this->callback[$i]['height'],
-                    'descender' => $this->callback[$i]['descender']
-                ];
-                $func = $this->callback[$i]['f'];
-                $this->$func($info);
-            }
-        }
-
-        if ($this->fonts[$this->currentFont]['isSubsetting']) {
-            $this->registerText($this->currentFont, $text);
-        }
-    }
-
-    /**
-     * calculate how wide a given text string will be on a page, at a given size.
-     * this can be called externally, but is also used by the other class functions
-     *
-     * @param float  $size
-     * @param string $text
-     * @param float  $wordSpacing
-     * @param float  $charSpacing
-     *
-     * @return float
-     */
-    public function getTextWidth(float $size, string $text, float $wordSpacing = 0.0, float $charSpacing = 0.0): float
-    {
-        static $ord_cache = [];
-
-        // this function should not change any of the settings, though it will need to
-        // track any directives which change during calculation, so copy them at the start
-        // and put them back at the end.
-        $store_currentTextState = $this->currentTextState;
-
-        if (!$this->numFonts) {
-            $this->selectFont($this->defaultFont);
-        }
-
-        $text = str_replace(["\r", "\n"], "", $text);
-
-        // hmm, this is where it all starts to get tricky - use the font information to
-        // calculate the width of each character, add them up and convert to user units
-        $w = 0;
-        $cf = $this->currentFont;
-        $current_font = $this->fonts[$cf];
-        $space_scale = 1000 / ($size > 0 ? $size : 1);
-
-        if ($current_font['isUnicode']) {
-            // for Unicode, use the code points array to calculate width rather
-            // than just the string itself
-            $unicode = $this->utf8toCodePointsArray($text);
-
-            foreach ($unicode as $char) {
-                // check if we have to replace character
-                if (isset($current_font['differences'][$char])) {
-                    $char = $current_font['differences'][$char];
-                }
-
-                if (isset($current_font['C'][$char])) {
-                    $char_width = $current_font['C'][$char];
-
-                    // add the character width
-                    $w += $char_width;
-
-                    // add additional padding for space
-                    if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
-                        $w += $wordSpacing * $space_scale;
-                    }
-                }
-            }
-
-            // add additional char spacing
-            if ($charSpacing != 0) {
-                $w += $charSpacing * $space_scale * count($unicode);
-            }
-
-        } else {
-            // If CPDF is in Unicode mode but the current font does not support Unicode we need to convert the character set to Windows-1252
-            if ($this->isUnicode) {
-                $text = mb_convert_encoding($text, 'Windows-1252', 'UTF-8');
-            }
-
-            $len = mb_strlen($text, 'Windows-1252');
-
-            for ($i = 0; $i < $len; $i++) {
-                $c = $text[$i];
-                $char = isset($ord_cache[$c]) ? $ord_cache[$c] : ($ord_cache[$c] = ord($c));
-
-                // check if we have to replace character
-                if (isset($current_font['differences'][$char])) {
-                    $char = $current_font['differences'][$char];
-                }
-
-                if (isset($current_font['C'][$char])) {
-                    $char_width = $current_font['C'][$char];
-
-                    // add the character width
-                    $w += $char_width;
-
-                    // add additional padding for space
-                    if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
-                        $w += $wordSpacing * $space_scale;
-                    }
-                }
-            }
-
-            // add additional char spacing
-            if ($charSpacing != 0) {
-                $w += $charSpacing * $space_scale * $len;
-            }
-        }
-
-        $this->currentTextState = $store_currentTextState;
-        $this->setCurrentFont();
-
-        return $w * $size / 1000;
-    }
-
-    /**
-     * this will be called at a new page to return the state to what it was on the
-     * end of the previous page, before the stack was closed down
-     * This is to get around not being able to have open 'q' across pages
-     *
-     * @param int $pageEnd
-     */
-    function saveState($pageEnd = 0)
-    {
-        if ($pageEnd) {
-            // this will be called at a new page to return the state to what it was on the
-            // end of the previous page, before the stack was closed down
-            // This is to get around not being able to have open 'q' across pages
-            $opt = $this->stateStack[$pageEnd];
-            // ok to use this as stack starts numbering at 1
-            $this->setColor($opt['col'], true);
-            $this->setStrokeColor($opt['str'], true);
-            $this->addContent("\n" . $opt['lin']);
-            //    $this->currentLineStyle = $opt['lin'];
-        } else {
-            $this->nStateStack++;
-            $this->stateStack[$this->nStateStack] = [
-                'col' => $this->currentColor,
-                'str' => $this->currentStrokeColor,
-                'lin' => $this->currentLineStyle
-            ];
-        }
-
-        $this->save();
-    }
-
-    /**
-     * restore a previously saved state
-     *
-     * @param int $pageEnd
-     */
-    function restoreState($pageEnd = 0)
-    {
-        if (!$pageEnd) {
-            $n = $this->nStateStack;
-            $this->currentColor = $this->stateStack[$n]['col'];
-            $this->currentStrokeColor = $this->stateStack[$n]['str'];
-            $this->addContent("\n" . $this->stateStack[$n]['lin']);
-            $this->currentLineStyle = $this->stateStack[$n]['lin'];
-            $this->stateStack[$n] = null;
-            unset($this->stateStack[$n]);
-            $this->nStateStack--;
-        }
-
-        $this->restore();
-    }
-
-    /**
-     * make a loose object, the output will go into this object, until it is closed, then will revert to
-     * the current one.
-     * this object will not appear until it is included within a page.
-     * the function will return the object number
-     *
-     * @return int
-     */
-    function openObject()
-    {
-        $this->nStack++;
-        $this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
-        // add a new object of the content type, to hold the data flow
-        $this->numObj++;
-        $this->o_contents($this->numObj, 'new');
-        $this->currentContents = $this->numObj;
-        $this->looseObjects[$this->numObj] = 1;
-
-        return $this->numObj;
-    }
-
-    /**
-     * open an existing object for editing
-     *
-     * @param $id
-     */
-    function reopenObject($id)
-    {
-        $this->nStack++;
-        $this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
-        $this->currentContents = $id;
-
-        // also if this object is the primary contents for a page, then set the current page to its parent
-        if (isset($this->objects[$id]['onPage'])) {
-            $this->currentPage = $this->objects[$id]['onPage'];
-        }
-    }
-
-    /**
-     * close an object
-     */
-    function closeObject()
-    {
-        // close the object, as long as there was one open in the first place, which will be indicated by
-        // an objectId on the stack.
-        if ($this->nStack > 0) {
-            $this->currentContents = $this->stack[$this->nStack]['c'];
-            $this->currentPage = $this->stack[$this->nStack]['p'];
-            $this->nStack--;
-            // easier to probably not worry about removing the old entries, they will be overwritten
-            // if there are new ones.
-        }
-    }
-
-    /**
-     * stop an object from appearing on pages from this point on
-     *
-     * @param $id
-     */
-    function stopObject($id)
-    {
-        // if an object has been appearing on pages up to now, then stop it, this page will
-        // be the last one that could contain it.
-        if (isset($this->addLooseObjects[$id])) {
-            $this->addLooseObjects[$id] = '';
-        }
-    }
-
-    /**
-     * after an object has been created, it wil only show if it has been added, using this function.
-     *
-     * @param $id
-     * @param string $options
-     */
-    function addObject($id, $options = 'add')
-    {
-        // add the specified object to the page
-        if (isset($this->looseObjects[$id]) && $this->currentContents != $id) {
-            // then it is a valid object, and it is not being added to itself
-            switch ($options) {
-                case 'all':
-                    // then this object is to be added to this page (done in the next block) and
-                    // all future new pages.
-                    $this->addLooseObjects[$id] = 'all';
-
-                case 'add':
-                    if (isset($this->objects[$this->currentContents]['onPage'])) {
-                        // then the destination contents is the primary for the page
-                        // (though this object is actually added to that page)
-                        $this->o_page($this->objects[$this->currentContents]['onPage'], 'content', $id);
-                    }
-                    break;
-
-                case 'even':
-                    $this->addLooseObjects[$id] = 'even';
-                    $pageObjectId = $this->objects[$this->currentContents]['onPage'];
-                    if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 0) {
-                        $this->addObject($id);
-                        // hacky huh :)
-                    }
-                    break;
-
-                case 'odd':
-                    $this->addLooseObjects[$id] = 'odd';
-                    $pageObjectId = $this->objects[$this->currentContents]['onPage'];
-                    if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 1) {
-                        $this->addObject($id);
-                        // hacky huh :)
-                    }
-                    break;
-
-                case 'next':
-                    $this->addLooseObjects[$id] = 'all';
-                    break;
-
-                case 'nexteven':
-                    $this->addLooseObjects[$id] = 'even';
-                    break;
-
-                case 'nextodd':
-                    $this->addLooseObjects[$id] = 'odd';
-                    break;
-            }
-        }
-    }
-
-    /**
-     * return a storable representation of a specific object
-     *
-     * @param $id
-     * @return string|null
-     */
-    function serializeObject($id)
-    {
-        if (array_key_exists($id, $this->objects)) {
-            return serialize($this->objects[$id]);
-        }
-
-        return null;
-    }
-
-    /**
-     * restore an object from its stored representation. Returns its new object id.
-     *
-     * @param $obj
-     * @return int
-     */
-    function restoreSerializedObject($obj)
-    {
-        $obj_id = $this->openObject();
-        $this->objects[$obj_id] = unserialize($obj);
-        $this->closeObject();
-
-        return $obj_id;
-    }
-
-    /**
-     * Embeds a file inside the PDF
-     *
-     * @param string $filepath path to the file to store inside the PDF
-     * @param string $embeddedFilename the filename displayed in the list of embedded files
-     * @param string $description a description in the list of embedded files
-     */
-    public function addEmbeddedFile(string $filepath, string $embeddedFilename, string $description): void
-    {
-        $this->numObj++;
-        $this->o_embedded_file_dictionary(
-            $this->numObj,
-            'new',
-            [
-                'filepath' => $filepath,
-                'filename' => $embeddedFilename,
-                'description' => $description
-            ]
-        );
-    }
-
-    /**
-     * Add content to the documents info object
-     *
-     * @param string|array $label
-     * @param string       $value
-     */
-    public function addInfo($label, string $value = ""): void
-    {
-        // this will only work if the label is one of the valid ones.
-        // modify this so that arrays can be passed as well.
-        // if $label is an array then assume that it is key => value pairs
-        // else assume that they are both scalar, anything else will probably error
-        if (is_array($label)) {
-            foreach ($label as $l => $v) {
-                $this->o_info($this->infoObject, $l, (string) $v);
-            }
-        } else {
-            $this->o_info($this->infoObject, $label, $value);
-        }
-    }
-
-    /**
-     * set the viewer preferences of the document, it is up to the browser to obey these.
-     *
-     * @param $label
-     * @param int $value
-     */
-    function setPreferences($label, $value = 0)
-    {
-        // this will only work if the label is one of the valid ones.
-        if (is_array($label)) {
-            foreach ($label as $l => $v) {
-                $this->o_catalog($this->catalogId, 'viewerPreferences', [$l => $v]);
-            }
-        } else {
-            $this->o_catalog($this->catalogId, 'viewerPreferences', [$label => $value]);
-        }
-    }
-
-    /**
-     * extract an integer from a position in a byte stream
-     *
-     * @param $data
-     * @param $pos
-     * @param $num
-     * @return int
-     */
-    private function getBytes(&$data, $pos, $num)
-    {
-        // return the integer represented by $num bytes from $pos within $data
-        $ret = 0;
-        for ($i = 0; $i < $num; $i++) {
-            $ret *= 256;
-            $ret += ord($data[$pos + $i]);
-        }
-
-        return $ret;
-    }
-
-    /**
-     * Check if image already added to pdf image directory.
-     * If yes, need not to create again (pass empty data)
-     *
-     * @param string $imgname
-     * @return bool
-     */
-    function image_iscached($imgname)
-    {
-        return isset($this->imagelist[$imgname]);
-    }
-
-    /**
-     * add a PNG image into the document, from a GD object
-     * this should work with remote files
-     *
-     * @param \GdImage|resource $img A GD resource
-     * @param string $file The PNG file
-     * @param float $x X position
-     * @param float $y Y position
-     * @param float $w Width
-     * @param float $h Height
-     * @param bool $is_mask true if the image is a mask
-     * @param bool $mask true if the image is masked
-     * @throws Exception
-     */
-    function addImagePng(&$img, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
-    {
-        if (!function_exists("imagepng")) {
-            throw new \Exception("The PHP GD extension is required, but is not installed.");
-        }
-
-        //if already cached, need not to read again
-        if (isset($this->imagelist[$file])) {
-            $data = null;
-        } else {
-            // Example for transparency handling on new image. Retain for current image
-            // $tIndex = imagecolortransparent($img);
-            // if ($tIndex > 0) {
-            //   $tColor    = imagecolorsforindex($img, $tIndex);
-            //   $new_tIndex    = imagecolorallocate($new_img, $tColor['red'], $tColor['green'], $tColor['blue']);
-            //   imagefill($new_img, 0, 0, $new_tIndex);
-            //   imagecolortransparent($new_img, $new_tIndex);
-            // }
-            // blending mode (literal/blending) on drawing into current image. not relevant when not saved or not drawn
-            //imagealphablending($img, true);
-
-            //default, but explicitely set to ensure pdf compatibility
-            imagesavealpha($img, false/*!$is_mask && !$mask*/);
-
-            $error = 0;
-            //DEBUG_IMG_TEMP
-            //debugpng
-            if (defined("DEBUGPNG") && DEBUGPNG) {
-                print '[addImagePng ' . $file . ']';
-            }
-
-            ob_start();
-            @imagepng($img);
-            $data = ob_get_clean();
-
-            if ($data == '') {
-                $error = 1;
-                $errormsg = 'trouble writing file from GD';
-                //DEBUG_IMG_TEMP
-                //debugpng
-                if (defined("DEBUGPNG") && DEBUGPNG) {
-                    print 'trouble writing file from GD';
-                }
-            }
-
-            if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
-
-                return;
-            }
-        }  //End isset($this->imagelist[$file]) (png Duplicate removal)
-
-        $this->addPngFromBuf($data, $file, $x, $y, $w, $h, $is_mask, $mask);
-    }
-
-    /**
-     * @param $file
-     * @param $x
-     * @param $y
-     * @param $w
-     * @param $h
-     * @param $byte
-     */
-    protected function addImagePngAlpha($file, $x, $y, $w, $h, $byte)
-    {
-        // generate images
-        $img = @imagecreatefrompng($file);
-
-        if ($img === false) {
-            return;
-        }
-
-        // FIXME The pixel transformation doesn't work well with 8bit PNGs
-        $eight_bit = ($byte & 4) !== 4;
-
-        $wpx = imagesx($img);
-        $hpx = imagesy($img);
-
-        imagesavealpha($img, false);
-
-        // create temp alpha file
-        $tempfile_alpha = @tempnam($this->tmp, "cpdf_img_");
-        @unlink($tempfile_alpha);
-        $tempfile_alpha = "$tempfile_alpha.png";
-
-        // create temp plain file
-        $tempfile_plain = @tempnam($this->tmp, "cpdf_img_");
-        @unlink($tempfile_plain);
-        $tempfile_plain = "$tempfile_plain.png";
-
-        $imgalpha = imagecreate($wpx, $hpx);
-        imagesavealpha($imgalpha, false);
-
-        // generate gray scale palette (0 -> 255)
-        for ($c = 0; $c < 256; ++$c) {
-            imagecolorallocate($imgalpha, $c, $c, $c);
-        }
-
-        // Use PECL gmagick + Graphics Magic to process transparent PNG images
-        if (extension_loaded("gmagick")) {
-            $gmagick = new \Gmagick($file);
-            $gmagick->setimageformat('png');
-
-            // Get opacity channel (negative of alpha channel)
-            $alpha_channel_neg = clone $gmagick;
-            $alpha_channel_neg->separateimagechannel(\Gmagick::CHANNEL_OPACITY);
-
-            // Negate opacity channel
-            $alpha_channel = new \Gmagick();
-            $alpha_channel->newimage($wpx, $hpx, "#FFFFFF", "png");
-            $alpha_channel->compositeimage($alpha_channel_neg, \Gmagick::COMPOSITE_DIFFERENCE, 0, 0);
-            $alpha_channel->separateimagechannel(\Gmagick::CHANNEL_RED);
-            $alpha_channel->writeimage($tempfile_alpha);
-
-            // Cast to 8bit+palette
-            $imgalpha_ = @imagecreatefrompng($tempfile_alpha);
-            imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
-            imagedestroy($imgalpha_);
-            imagepng($imgalpha, $tempfile_alpha);
-
-            // Make opaque image
-            $color_channels = new \Gmagick();
-            $color_channels->newimage($wpx, $hpx, "#FFFFFF", "png");
-            $color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYRED, 0, 0);
-            $color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYGREEN, 0, 0);
-            $color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYBLUE, 0, 0);
-            $color_channels->writeimage($tempfile_plain);
-
-            $imgplain = @imagecreatefrompng($tempfile_plain);
-        }
-        // Use PECL imagick + ImageMagic to process transparent PNG images
-        elseif (extension_loaded("imagick")) {
-            // Native cloning was added to pecl-imagick in svn commit 263814
-            // the first version containing it was 3.0.1RC1
-            static $imagickClonable = null;
-            if ($imagickClonable === null) {
-                $imagickClonable = true;
-                if (defined('Imagick::IMAGICK_EXTVER')) {
-                    $imagickVersion = \Imagick::IMAGICK_EXTVER;
-                } else {
-                    $imagickVersion = '0';
-                }
-                if (version_compare($imagickVersion, '0.0.1', '>=')) {
-                    $imagickClonable = version_compare($imagickVersion, '3.0.1rc1', '>=');
-                }
-            }
-
-            $imagick = new \Imagick($file);
-            $imagick->setFormat('png');
-
-            // Get opacity channel (negative of alpha channel)
-            if ($imagick->getImageAlphaChannel()) {
-                $alpha_channel = $imagickClonable ? clone $imagick : $imagick->clone();
-                $alpha_channel->separateImageChannel(\Imagick::CHANNEL_ALPHA);
-                // Since ImageMagick7 negate invert transparency as default
-                if (\Imagick::getVersion()['versionNumber'] < 1800) {
-                    $alpha_channel->negateImage(true);
-                }
-                $alpha_channel->writeImage($tempfile_alpha);
-
-                // Cast to 8bit+palette
-                $imgalpha_ = @imagecreatefrompng($tempfile_alpha);
-                imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
-                imagedestroy($imgalpha_);
-                imagepng($imgalpha, $tempfile_alpha);
-            } else {
-                $tempfile_alpha = null;
-            }
-
-            // Make opaque image
-            $color_channels = new \Imagick();
-            $color_channels->newImage($wpx, $hpx, "#FFFFFF", "png");
-            $color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYRED, 0, 0);
-            $color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYGREEN, 0, 0);
-            $color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYBLUE, 0, 0);
-            $color_channels->writeImage($tempfile_plain);
-
-            $imgplain = @imagecreatefrompng($tempfile_plain);
-        } else {
-            // allocated colors cache
-            $allocated_colors = [];
-
-            // extract alpha channel
-            for ($xpx = 0; $xpx < $wpx; ++$xpx) {
-                for ($ypx = 0; $ypx < $hpx; ++$ypx) {
-                    $color = imagecolorat($img, $xpx, $ypx);
-                    $col = imagecolorsforindex($img, $color);
-                    $alpha = $col['alpha'];
-
-                    if ($eight_bit) {
-                        // with gamma correction
-                        $gammacorr = 2.2;
-                        $pixel = round(pow((((127 - $alpha) * 255 / 127) / 255), $gammacorr) * 255);
-                    } else {
-                        // without gamma correction
-                        $pixel = (127 - $alpha) * 2;
-
-                        $key = $col['red'] . $col['green'] . $col['blue'];
-
-                        if (!isset($allocated_colors[$key])) {
-                            $pixel_img = imagecolorallocate($img, $col['red'], $col['green'], $col['blue']);
-                            $allocated_colors[$key] = $pixel_img;
-                        } else {
-                            $pixel_img = $allocated_colors[$key];
-                        }
-
-                        imagesetpixel($img, $xpx, $ypx, $pixel_img);
-                    }
-
-                    imagesetpixel($imgalpha, $xpx, $ypx, $pixel);
-                }
-            }
-
-            // extract image without alpha channel
-            $imgplain = imagecreatetruecolor($wpx, $hpx);
-            imagecopy($imgplain, $img, 0, 0, 0, 0, $wpx, $hpx);
-            imagedestroy($img);
-
-            imagepng($imgalpha, $tempfile_alpha);
-            imagepng($imgplain, $tempfile_plain);
-        }
-
-        $this->imageAlphaList[$file] = [$tempfile_alpha, $tempfile_plain];
-
-        // embed mask image
-        if ($tempfile_alpha) {
-            $this->addImagePng($imgalpha, $tempfile_alpha, $x, $y, $w, $h, true);
-            imagedestroy($imgalpha);
-            $this->imageCache[] = $tempfile_alpha;
-        }
-
-        // embed image, masked with previously embedded mask
-        $this->addImagePng($imgplain, $tempfile_plain, $x, $y, $w, $h, false, ($tempfile_alpha !== null));
-        imagedestroy($imgplain);
-        $this->imageCache[] = $tempfile_plain;
-    }
-
-    /**
-     * add a PNG image into the document, from a file
-     * this should work with remote files
-     *
-     * @param $file
-     * @param $x
-     * @param $y
-     * @param int $w
-     * @param int $h
-     * @throws Exception
-     */
-    function addPngFromFile($file, $x, $y, $w = 0, $h = 0)
-    {
-        if (!function_exists("imagecreatefrompng")) {
-            throw new \Exception("The PHP GD extension is required, but is not installed.");
-        }
-
-        if (isset($this->imageAlphaList[$file])) {
-            [$alphaFile, $plainFile] = $this->imageAlphaList[$file];
-
-            if ($alphaFile) {
-                $img = null;
-                $this->addImagePng($img, $alphaFile, $x, $y, $w, $h, true);
-            }
-
-            $img = null;
-            $this->addImagePng($img, $plainFile, $x, $y, $w, $h, false, ($plainFile !== null));
-            return;
-        }
-
-        //if already cached, need not to read again
-        if (isset($this->imagelist[$file])) {
-            $img = null;
-        } else {
-            $info = file_get_contents($file, false, null, 24, 5);
-            $meta = unpack("CbitDepth/CcolorType/CcompressionMethod/CfilterMethod/CinterlaceMethod", $info);
-            $bit_depth = $meta["bitDepth"];
-            $color_type = $meta["colorType"];
-
-            // http://www.w3.org/TR/PNG/#11IHDR
-            // 3 => indexed
-            // 4 => greyscale with alpha
-            // 6 => fullcolor with alpha
-            $is_alpha = in_array($color_type, [4, 6]) || ($color_type == 3 && $bit_depth != 4);
-
-            if ($is_alpha) { // exclude grayscale alpha
-                $this->addImagePngAlpha($file, $x, $y, $w, $h, $color_type);
-                return;
-            }
-
-            //png files typically contain an alpha channel.
-            //pdf file format or class.pdf does not support alpha blending.
-            //on alpha blended images, more transparent areas have a color near black.
-            //This appears in the result on not storing the alpha channel.
-            //Correct would be the box background image or its parent when transparent.
-            //But this would make the image dependent on the background.
-            //Therefore create an image with white background and copy in
-            //A more natural background than black is white.
-            //Therefore create an empty image with white background and merge the
-            //image in with alpha blending.
-            $imgtmp = @imagecreatefrompng($file);
-            if (!$imgtmp) {
-                return;
-            }
-            $sx = imagesx($imgtmp);
-            $sy = imagesy($imgtmp);
-            $img = imagecreatetruecolor($sx, $sy);
-            imagealphablending($img, true);
-
-            // @todo is it still needed ??
-            $ti = imagecolortransparent($imgtmp);
-            if ($ti >= 0) {
-                $tc = imagecolorsforindex($imgtmp, $ti);
-                $ti = imagecolorallocate($img, $tc['red'], $tc['green'], $tc['blue']);
-                imagefill($img, 0, 0, $ti);
-                imagecolortransparent($img, $ti);
-            } else {
-                imagefill($img, 1, 1, imagecolorallocate($img, 255, 255, 255));
-            }
-
-            imagecopy($img, $imgtmp, 0, 0, 0, 0, $sx, $sy);
-            imagedestroy($imgtmp);
-        }
-        $this->addImagePng($img, $file, $x, $y, $w, $h);
-
-        if ($img) {
-            imagedestroy($img);
-        }
-    }
-
-    /**
-     * add a PNG image into the document, from a file
-     * this should work with remote files
-     *
-     * @param $file
-     * @param $x
-     * @param $y
-     * @param int $w
-     * @param int $h
-     */
-    function addSvgFromFile($file, $x, $y, $w = 0, $h = 0)
-    {
-        $doc = new \Svg\Document();
-        $doc->loadFile($file);
-        $dimensions = $doc->getDimensions();
-
-        $this->save();
-
-        $this->transform([$w / $dimensions["width"], 0, 0, $h / $dimensions["height"], $x, $y]);
-
-        $surface = new \Svg\Surface\SurfaceCpdf($doc, $this);
-        $doc->render($surface);
-
-        $this->restore();
-    }
-
-    /**
-     * add a PNG image into the document, from a memory buffer of the file
-     *
-     * @param $data
-     * @param $file
-     * @param $x
-     * @param $y
-     * @param float $w
-     * @param float $h
-     * @param bool $is_mask
-     * @param null $mask
-     */
-    function addPngFromBuf(&$data, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
-    {
-        if (isset($this->imagelist[$file])) {
-            $data = null;
-            $info['width'] = $this->imagelist[$file]['w'];
-            $info['height'] = $this->imagelist[$file]['h'];
-            $label = $this->imagelist[$file]['label'];
-        } else {
-            if ($data == null) {
-                $this->addMessage('addPngFromBuf error - data not present!');
-
-                return;
-            }
-
-            $error = 0;
-
-            if (!$error) {
-                $header = chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10);
-
-                if (mb_substr($data, 0, 8, '8bit') != $header) {
-                    $error = 1;
-
-                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile this file does not have a valid header ' . $file . ']';
-                    }
-
-                    $errormsg = 'this file does not have a valid header';
-                }
-            }
-
-            if (!$error) {
-                // set pointer
-                $p = 8;
-                $len = mb_strlen($data, '8bit');
-
-                // cycle through the file, identifying chunks
-                $haveHeader = 0;
-                $info = [];
-                $idata = '';
-                $pdata = '';
-
-                while ($p < $len) {
-                    $chunkLen = $this->getBytes($data, $p, 4);
-                    $chunkType = mb_substr($data, $p + 4, 4, '8bit');
-
-                    switch ($chunkType) {
-                        case 'IHDR':
-                            // this is where all the file information comes from
-                            $info['width'] = $this->getBytes($data, $p + 8, 4);
-                            $info['height'] = $this->getBytes($data, $p + 12, 4);
-                            $info['bitDepth'] = ord($data[$p + 16]);
-                            $info['colorType'] = ord($data[$p + 17]);
-                            $info['compressionMethod'] = ord($data[$p + 18]);
-                            $info['filterMethod'] = ord($data[$p + 19]);
-                            $info['interlaceMethod'] = ord($data[$p + 20]);
-
-                            //print_r($info);
-                            $haveHeader = 1;
-                            if ($info['compressionMethod'] != 0) {
-                                $error = 1;
-
-                                //debugpng
-                                if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported compression method ' . $file . ']';
-                                }
-
-                                $errormsg = 'unsupported compression method';
-                            }
-
-                            if ($info['filterMethod'] != 0) {
-                                $error = 1;
-
-                                //debugpng
-                                if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported filter method ' . $file . ']';
-                                }
-
-                                $errormsg = 'unsupported filter method';
-                            }
-                            break;
-
-                        case 'PLTE':
-                            $pdata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
-                            break;
-
-                        case 'IDAT':
-                            $idata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
-                            break;
-
-                        case 'tRNS':
-                            //this chunk can only occur once and it must occur after the PLTE chunk and before IDAT chunk
-                            //print "tRNS found, color type = ".$info['colorType']."\n";
-                            $transparency = [];
-
-                            switch ($info['colorType']) {
-                                // indexed color, rbg
-                                case 3:
-                                    /* corresponding to entries in the plte chunk
+					}
+				}
+			}
+
+			if ($this->compressionReady && $this->options['compression']) {
+				// then implement ZLIB based compression on CIDtoGID string
+				$data['CIDtoGID_Compressed'] = true;
+				$cidtogid = gzcompress($cidtogid, 6);
+			}
+			$data['CIDtoGID'] = base64_encode($cidtogid);
+			$data['_version_'] = $this->fontcacheVersion;
+			$this->fonts[$font] = $data;
+
+			//Because of potential trouble with php safe mode, expect that the folder already exists.
+			//If not existing, this will hit performance because of missing cached results.
+			if (is_dir($fontcache) && is_writable($fontcache)) {
+				file_put_contents("$fontcache/$cache_name", json_encode($data, JSON_PRETTY_PRINT));
+			}
+			$data = null;
+		}
+
+		if (!isset($this->fonts[$font])) {
+			$this->addMessage("openFont: no font file found for $font. Do you need to run load_font.php?");
+		}
+	}
+
+	/**
+	 * if the font is not loaded then load it and make the required object
+	 * else just make it the current font
+	 * the encoding array can contain 'encoding'=> 'none','WinAnsiEncoding','MacRomanEncoding' or 'MacExpertEncoding'
+	 * note that encoding='none' will need to be used for symbolic fonts
+	 * and 'differences' => an array of mappings between numbers 0->255 and character names.
+	 *
+	 * @param string $fontName
+	 * @param string $encoding
+	 * @param bool $set
+	 * @param bool $isSubsetting
+	 * @return int
+	 * @throws FontNotFoundException
+	 */
+	function selectFont($fontName, $encoding = '', $set = true, $isSubsetting = true)
+	{
+		if ($fontName === null || $fontName === '') {
+			return $this->currentFontNum;
+		}
+
+		$ext = substr($fontName, -4);
+		if ($ext === '.afm' || $ext === '.ufm') {
+			$fontName = substr($fontName, 0, mb_strlen($fontName) - 4);
+		}
+
+		if (!isset($this->fonts[$fontName])) {
+			$this->addMessage("selectFont: selecting - $fontName - $encoding, $set");
+
+			// load the file
+			$this->openFont($fontName);
+
+			if (isset($this->fonts[$fontName])) {
+				$this->numObj++;
+				$this->numFonts++;
+
+				$font = &$this->fonts[$fontName];
+
+				$name = basename($fontName);
+				$options = ['name' => $name, 'fontFileName' => $fontName, 'isSubsetting' => $isSubsetting];
+
+				if (is_array($encoding)) {
+					// then encoding and differences might be set
+					if (isset($encoding['encoding'])) {
+						$options['encoding'] = $encoding['encoding'];
+					}
+
+					if (isset($encoding['differences'])) {
+						$options['differences'] = $encoding['differences'];
+					}
+				} else {
+					if (mb_strlen($encoding, '8bit')) {
+						// then perhaps only the encoding has been set
+						$options['encoding'] = $encoding;
+					}
+				}
+
+				$this->o_font($this->numObj, 'new', $options);
+
+				if (file_exists("$fontName.ttf")) {
+					$fileSuffix = 'ttf';
+				} elseif (file_exists("$fontName.TTF")) {
+					$fileSuffix = 'TTF';
+				} elseif (file_exists("$fontName.pfb")) {
+					$fileSuffix = 'pfb';
+				} elseif (file_exists("$fontName.PFB")) {
+					$fileSuffix = 'PFB';
+				} else {
+					$fileSuffix = '';
+				}
+
+				$font['fileSuffix'] = $fileSuffix;
+
+				$font['fontNum'] = $this->numFonts;
+				$font['isSubsetting'] = $isSubsetting && $font['isUnicode'] && strtolower($fileSuffix) === 'ttf';
+
+				// also set the differences here, note that this means that these will take effect only the
+				//first time that a font is selected, else they are ignored
+				if (isset($options['differences'])) {
+					$font['differences'] = $options['differences'];
+				}
+			}
+		}
+
+		if ($set && isset($this->fonts[$fontName])) {
+			// so if for some reason the font was not set in the last one then it will not be selected
+			$this->currentBaseFont = $fontName;
+
+			// the next lines mean that if a new font is selected, then the current text state will be
+			// applied to it as well.
+			$this->currentFont = $this->currentBaseFont;
+			$this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
+		}
+
+		return $this->currentFontNum;
+	}
+
+	/**
+	 * sets up the current font, based on the font families, and the current text state
+	 * note that this system is quite flexible, a bold-italic font can be completely different to a
+	 * italic-bold font, and even bold-bold will have to be defined within the family to have meaning
+	 * This function is to be called whenever the currentTextState is changed, it will update
+	 * the currentFont setting to whatever the appropriate family one is.
+	 * If the user calls selectFont themselves then that will reset the currentBaseFont, and the currentFont
+	 * This function will change the currentFont to whatever it should be, but will not change the
+	 * currentBaseFont.
+	 */
+	private function setCurrentFont()
+	{
+		//   if (strlen($this->currentBaseFont) == 0){
+		//     // then assume an initial font
+		//     $this->selectFont($this->defaultFont);
+		//   }
+		//   $cf = substr($this->currentBaseFont,strrpos($this->currentBaseFont,'/')+1);
+		//   if (strlen($this->currentTextState)
+		//     && isset($this->fontFamilies[$cf])
+		//       && isset($this->fontFamilies[$cf][$this->currentTextState])){
+		//     // then we are in some state or another
+		//     // and this font has a family, and the current setting exists within it
+		//     // select the font, then return it
+		//     $nf = substr($this->currentBaseFont,0,strrpos($this->currentBaseFont,'/')+1).$this->fontFamilies[$cf][$this->currentTextState];
+		//     $this->selectFont($nf,'',0);
+		//     $this->currentFont = $nf;
+		//     $this->currentFontNum = $this->fonts[$nf]['fontNum'];
+		//   } else {
+		//     // the this font must not have the right family member for the current state
+		//     // simply assume the base font
+		$this->currentFont = $this->currentBaseFont;
+		$this->currentFontNum = $this->fonts[$this->currentFont]['fontNum'];
+		//  }
+	}
+
+	/**
+	 * function for the user to find out what the ID is of the first page that was created during
+	 * startup - useful if they wish to add something to it later.
+	 *
+	 * @return int
+	 */
+	function getFirstPageId()
+	{
+		return $this->firstPageId;
+	}
+
+	/**
+	 * add content to the currently active object
+	 *
+	 * @param $content
+	 */
+	private function addContent($content)
+	{
+		$this->objects[$this->currentContents]['c'] .= $content;
+	}
+
+	/**
+	 * sets the color for fill operations
+	 *
+	 * @param array $color
+	 * @param bool  $force
+	 */
+	function setColor($color, $force = false)
+	{
+		$new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
+
+		if (!$force && $this->currentColor == $new_color) {
+			return;
+		}
+
+		if (isset($new_color[3])) {
+			$this->currentColor = $new_color;
+			$this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F k", $this->currentColor));
+		} else {
+			if (isset($new_color[2])) {
+				$this->currentColor = $new_color;
+				$this->addContent(vsprintf("\n%.3F %.3F %.3F rg", $this->currentColor));
+			}
+		}
+	}
+
+	/**
+	 * @param string $fillRule
+	 */
+	function setFillRule($fillRule)
+	{
+		if (!in_array($fillRule, ["nonzero", "evenodd"])) {
+			return;
+		}
+
+		$this->fillRule = $fillRule;
+	}
+
+	/**
+	 * sets the color for stroke operations
+	 *
+	 * @param array $color
+	 * @param bool  $force
+	 */
+	function setStrokeColor($color, $force = false)
+	{
+		$new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
+
+		if (!$force && $this->currentStrokeColor == $new_color) {
+			return;
+		}
+
+		if (isset($new_color[3])) {
+			$this->currentStrokeColor = $new_color;
+			$this->addContent(vsprintf("\n%.3F %.3F %.3F %.3F K", $this->currentStrokeColor));
+		} else {
+			if (isset($new_color[2])) {
+				$this->currentStrokeColor = $new_color;
+				$this->addContent(vsprintf("\n%.3F %.3F %.3F RG", $this->currentStrokeColor));
+			}
+		}
+	}
+
+	/**
+	 * Set the graphics state for compositions
+	 *
+	 * @param $parameters
+	 */
+	function setGraphicsState($parameters)
+	{
+		// Create a new graphics state object if necessary
+		if (($gstate = array_search($parameters, $this->gstates)) === false) {
+			$this->numObj++;
+			$this->o_extGState($this->numObj, 'new', $parameters);
+			$gstate = $this->numStates;
+			$this->gstates[$gstate] = $parameters;
+		}
+		$this->addContent("\n/GS$gstate gs");
+	}
+
+	/**
+	 * Set current blend mode & opacity for lines.
+	 *
+	 * Valid blend modes are:
+	 *
+	 * Normal, Multiply, Screen, Overlay, Darken, Lighten,
+	 * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
+	 * Exclusion
+	 *
+	 * @param string $mode    the blend mode to use
+	 * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
+	 */
+	function setLineTransparency($mode, $opacity)
+	{
+		static $blend_modes = [
+			"Normal",
+			"Multiply",
+			"Screen",
+			"Overlay",
+			"Darken",
+			"Lighten",
+			"ColorDogde",
+			"ColorBurn",
+			"HardLight",
+			"SoftLight",
+			"Difference",
+			"Exclusion"
+		];
+
+		if (!in_array($mode, $blend_modes)) {
+			$mode = "Normal";
+		}
+
+		if (is_null($this->currentLineTransparency)) {
+			$this->currentLineTransparency = [];
+		}
+
+		if ($mode === (key_exists('mode', $this->currentLineTransparency) ?
+			$this->currentLineTransparency['mode'] : '') &&
+			$opacity === (key_exists('opacity', $this->currentLineTransparency) ?
+			$this->currentLineTransparency["opacity"] : '')) {
+			return;
+		}
+
+		$this->currentLineTransparency["mode"] = $mode;
+		$this->currentLineTransparency["opacity"] = $opacity;
+
+		$options = [
+			"BM" => "/$mode",
+			"CA" => (float)$opacity
+		];
+
+		$this->setGraphicsState($options);
+	}
+
+	/**
+	 * Set current blend mode & opacity for filled objects.
+	 *
+	 * Valid blend modes are:
+	 *
+	 * Normal, Multiply, Screen, Overlay, Darken, Lighten,
+	 * ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
+	 * Exclusion
+	 *
+	 * @param string $mode    the blend mode to use
+	 * @param float  $opacity 0.0 fully transparent, 1.0 fully opaque
+	 */
+	function setFillTransparency($mode, $opacity)
+	{
+		static $blend_modes = [
+			"Normal",
+			"Multiply",
+			"Screen",
+			"Overlay",
+			"Darken",
+			"Lighten",
+			"ColorDogde",
+			"ColorBurn",
+			"HardLight",
+			"SoftLight",
+			"Difference",
+			"Exclusion"
+		];
+
+		if (!in_array($mode, $blend_modes)) {
+			$mode = "Normal";
+		}
+
+		if (is_null($this->currentFillTransparency)) {
+			$this->currentFillTransparency = [];
+		}
+
+		if ($mode === (key_exists('mode', $this->currentFillTransparency) ?
+			$this->currentFillTransparency['mode'] : '') &&
+			$opacity === (key_exists('opacity', $this->currentFillTransparency) ?
+			$this->currentFillTransparency["opacity"] : '')) {
+			return;
+		}
+
+		$this->currentFillTransparency["mode"] = $mode;
+		$this->currentFillTransparency["opacity"] = $opacity;
+
+		$options = [
+			"BM" => "/$mode",
+			"ca" => (float)$opacity,
+		];
+
+		$this->setGraphicsState($options);
+	}
+
+	/**
+	 * draw a line from one set of coordinates to another
+	 *
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $x2
+	 * @param float $y2
+	 * @param bool  $stroke
+	 */
+	function line($x1, $y1, $x2, $y2, $stroke = true)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F m %.3F %.3F l", $x1, $y1, $x2, $y2));
+
+		if ($stroke) {
+			$this->addContent(' S');
+		}
+	}
+
+	/**
+	 * draw a bezier curve based on 4 control points
+	 *
+	 * @param float $x0
+	 * @param float $y0
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $x2
+	 * @param float $y2
+	 * @param float $x3
+	 * @param float $y3
+	 */
+	function curve($x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
+	{
+		// in the current line style, draw a bezier curve from (x0,y0) to (x3,y3) using the other two points
+		// as the control points for the curve.
+		$this->addContent(
+			sprintf("\n%.3F %.3F m %.3F %.3F %.3F %.3F %.3F %.3F c S", $x0, $y0, $x1, $y1, $x2, $y2, $x3, $y3)
+		);
+	}
+
+	/**
+	 * draw a part of an ellipse
+	 *
+	 * @param float $x0
+	 * @param float $y0
+	 * @param float $astart
+	 * @param float $afinish
+	 * @param float $r1
+	 * @param float $r2
+	 * @param float $angle
+	 * @param int $nSeg
+	 */
+	function partEllipse($x0, $y0, $astart, $afinish, $r1, $r2 = 0, $angle = 0, $nSeg = 8)
+	{
+		$this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, false);
+	}
+
+	/**
+	 * draw a filled ellipse
+	 *
+	 * @param float $x0
+	 * @param float $y0
+	 * @param float $r1
+	 * @param float $r2
+	 * @param float $angle
+	 * @param int $nSeg
+	 * @param float $astart
+	 * @param float $afinish
+	 */
+	function filledEllipse($x0, $y0, $r1, $r2 = 0, $angle = 0, $nSeg = 8, $astart = 0, $afinish = 360)
+	{
+		$this->ellipse($x0, $y0, $r1, $r2, $angle, $nSeg, $astart, $afinish, true, true);
+	}
+
+	/**
+	 * @param float $x
+	 * @param float $y
+	 */
+	function lineTo($x, $y)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F l", $x, $y));
+	}
+
+	/**
+	 * @param float $x
+	 * @param float $y
+	 */
+	function moveTo($x, $y)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F m", $x, $y));
+	}
+
+	/**
+	 * draw a bezier curve based on 4 control points
+	 *
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $x2
+	 * @param float $y2
+	 * @param float $x3
+	 * @param float $y3
+	 */
+	function curveTo($x1, $y1, $x2, $y2, $x3, $y3)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F %.3F %.3F c", $x1, $y1, $x2, $y2, $x3, $y3));
+	}
+
+	/**
+	 * draw a bezier curve based on 4 control points
+	 *
+	 * @param float $cpx
+	 * @param float $cpy
+	 * @param float $x
+	 * @param float $y
+	 */
+	function quadTo($cpx, $cpy, $x, $y)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F v", $cpx, $cpy, $x, $y));
+	}
+
+	function closePath()
+	{
+		$this->addContent(' h');
+	}
+
+	function endPath()
+	{
+		$this->addContent(' n');
+	}
+
+	/**
+	 * draw an ellipse
+	 * note that the part and filled ellipse are just special cases of this function
+	 *
+	 * draws an ellipse in the current line style
+	 * centered at $x0,$y0, radii $r1,$r2
+	 * if $r2 is not set, then a circle is drawn
+	 * from $astart to $afinish, measured in degrees, running anti-clockwise from the right hand side of the ellipse.
+	 * nSeg is not allowed to be less than 2, as this will simply draw a line (and will even draw a
+	 * pretty crappy shape at 2, as we are approximating with bezier curves.
+	 *
+	 * @param float $x0
+	 * @param float $y0
+	 * @param float $r1
+	 * @param float $r2
+	 * @param float $angle
+	 * @param int   $nSeg
+	 * @param float $astart
+	 * @param float $afinish
+	 * @param bool  $close
+	 * @param bool  $fill
+	 * @param bool  $stroke
+	 * @param bool  $incomplete
+	 */
+	function ellipse(
+		$x0,
+		$y0,
+		$r1,
+		$r2 = 0,
+		$angle = 0,
+		$nSeg = 8,
+		$astart = 0,
+		$afinish = 360,
+		$close = true,
+		$fill = false,
+		$stroke = true,
+		$incomplete = false
+	) {
+		if ($r1 == 0) {
+			return;
+		}
+
+		if ($r2 == 0) {
+			$r2 = $r1;
+		}
+
+		if ($nSeg < 2) {
+			$nSeg = 2;
+		}
+
+		$astart = deg2rad((float)$astart);
+		$afinish = deg2rad((float)$afinish);
+		$totalAngle = $afinish - $astart;
+
+		$dt = $totalAngle / $nSeg;
+		$dtm = $dt / 3;
+
+		if ($angle != 0) {
+			$a = -1 * deg2rad((float)$angle);
+
+			$this->addContent(
+				sprintf("\n q %.3F %.3F %.3F %.3F %.3F %.3F cm", cos($a), -sin($a), sin($a), cos($a), $x0, $y0)
+			);
+
+			$x0 = 0;
+			$y0 = 0;
+		}
+
+		$t1 = $astart;
+		$a0 = $x0 + $r1 * cos($t1);
+		$b0 = $y0 + $r2 * sin($t1);
+		$c0 = -$r1 * sin($t1);
+		$d0 = $r2 * cos($t1);
+
+		if (!$incomplete) {
+			$this->addContent(sprintf("\n%.3F %.3F m ", $a0, $b0));
+		}
+
+		for ($i = 1; $i <= $nSeg; $i++) {
+			// draw this bit of the total curve
+			$t1 = $i * $dt + $astart;
+			$a1 = $x0 + $r1 * cos($t1);
+			$b1 = $y0 + $r2 * sin($t1);
+			$c1 = -$r1 * sin($t1);
+			$d1 = $r2 * cos($t1);
+
+			$this->addContent(
+				sprintf(
+					"\n%.3F %.3F %.3F %.3F %.3F %.3F c",
+					($a0 + $c0 * $dtm),
+					($b0 + $d0 * $dtm),
+					($a1 - $c1 * $dtm),
+					($b1 - $d1 * $dtm),
+					$a1,
+					$b1
+				)
+			);
+
+			$a0 = $a1;
+			$b0 = $b1;
+			$c0 = $c1;
+			$d0 = $d1;
+		}
+
+		if (!$incomplete) {
+			if ($fill) {
+				$this->addContent(' f');
+			}
+
+			if ($stroke) {
+				if ($close) {
+					$this->addContent(' s'); // small 's' signifies closing the path as well
+				} else {
+					$this->addContent(' S');
+				}
+			}
+		}
+
+		if ($angle != 0) {
+			$this->addContent(' Q');
+		}
+	}
+
+	/**
+	 * this sets the line drawing style.
+	 * width, is the thickness of the line in user units
+	 * cap is the type of cap to put on the line, values can be 'butt','round','square'
+	 *    where the diffference between 'square' and 'butt' is that 'square' projects a flat end past the
+	 *    end of the line.
+	 * join can be 'miter', 'round', 'bevel'
+	 * dash is an array which sets the dash pattern, is a series of length values, which are the lengths of the
+	 *   on and off dashes.
+	 *   (2) represents 2 on, 2 off, 2 on , 2 off ...
+	 *   (2,1) is 2 on, 1 off, 2 on, 1 off.. etc
+	 * phase is a modifier on the dash pattern which is used to shift the point at which the pattern starts.
+	 *
+	 * @param float  $width
+	 * @param string $cap
+	 * @param string $join
+	 * @param array  $dash
+	 * @param int    $phase
+	 */
+	function setLineStyle($width = 1, $cap = '', $join = '', $dash = '', $phase = 0)
+	{
+		// this is quite inefficient in that it sets all the parameters whenever 1 is changed, but will fix another day
+		$string = '';
+
+		if ($width > 0) {
+			$string .= "$width w";
+		}
+
+		$ca = ['butt' => 0, 'round' => 1, 'square' => 2];
+
+		if (isset($ca[$cap])) {
+			$string .= " $ca[$cap] J";
+		}
+
+		$ja = ['miter' => 0, 'round' => 1, 'bevel' => 2];
+
+		if (isset($ja[$join])) {
+			$string .= " $ja[$join] j";
+		}
+
+		if (is_array($dash)) {
+			$string .= ' [ ' . implode(' ', $dash) . " ] $phase d";
+		}
+
+		$this->currentLineStyle = $string;
+		$this->addContent("\n$string");
+	}
+
+	/**
+	 * draw a polygon, the syntax for this is similar to the GD polygon command
+	 *
+	 * @param float[] $p
+	 * @param bool    $fill
+	 */
+	public function polygon(array $p, bool $fill = false): void
+	{
+		$this->addContent(sprintf("\n%.3F %.3F m ", $p[0], $p[1]));
+
+		$n = count($p);
+		for ($i = 2; $i < $n; $i = $i + 2) {
+			$this->addContent(sprintf("%.3F %.3F l ", $p[$i], $p[$i + 1]));
+		}
+
+		if ($fill) {
+			$this->addContent(' f');
+		} else {
+			$this->addContent(' S');
+		}
+	}
+
+	/**
+	 * a filled rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
+	 * the coordinates of the upper-right corner
+	 *
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $width
+	 * @param float $height
+	 */
+	function filledRectangle($x1, $y1, $width, $height)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re f", $x1, $y1, $width, $height));
+	}
+
+	/**
+	 * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
+	 * the coordinates of the upper-right corner
+	 *
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $width
+	 * @param float $height
+	 */
+	function rectangle($x1, $y1, $width, $height)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re S", $x1, $y1, $width, $height));
+	}
+
+	/**
+	 * draw a rectangle, note that it is the width and height of the rectangle which are the secondary parameters, not
+	 * the coordinates of the upper-right corner
+	 *
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $width
+	 * @param float $height
+	 */
+	function rect($x1, $y1, $width, $height)
+	{
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re", $x1, $y1, $width, $height));
+	}
+
+	function stroke()
+	{
+		$this->addContent("\nS");
+	}
+
+	function fill()
+	{
+		$this->addContent("\nf" . ($this->fillRule === "evenodd" ? "*" : ""));
+	}
+
+	function fillStroke()
+	{
+		$this->addContent("\nb" . ($this->fillRule === "evenodd" ? "*" : ""));
+	}
+
+	/**
+	 * @param string $subtype
+	 * @param integer $x
+	 * @param integer $y
+	 * @param integer $w
+	 * @param integer $h
+	 * @return int
+	 */
+	function addXObject($subtype, $x, $y, $w, $h)
+	{
+		$id = ++$this->numObj;
+		$this->o_xobject($id, 'new', ['Subtype' => $subtype, 'bbox' => [$x, $y, $w, $h]]);
+		return $id;
+	}
+
+	/**
+	 * @param integer $numXObject
+	 * @param string $type
+	 * @param array $options
+	 */
+	function setXObjectResource($numXObject, $type, $options)
+	{
+		if (in_array($type, ['procset', 'font', 'xObject'])) {
+			$this->o_xobject($numXObject, $type, $options);
+		}
+	}
+
+	/**
+	 * add signature
+	 *
+	 * $fieldSigId = $cpdf->addFormField(Cpdf::ACROFORM_FIELD_SIG, 'Signature1', 0, 0, 0, 0, 0);
+	 *
+	 * $signatureId = $cpdf->addSignature([
+	 *   'signcert' => file_get_contents('dompdf.crt'),
+	 *   'privkey' => file_get_contents('dompdf.key'),
+	 *   'password' => 'password',
+	 *   'name' => 'DomPDF DEMO',
+	 *   'location' => 'Home',
+	 *   'reason' => 'First Form',
+	 *   'contactinfo' => 'info'
+	 * ]);
+	 * $cpdf->setFormFieldValue($fieldSigId, "$signatureId 0 R");
+	 *
+	 * @param string $signcert
+	 * @param string $privkey
+	 * @param string $password
+	 * @param string|null $name
+	 * @param string|null $location
+	 * @param string|null $reason
+	 * @param string|null $contactinfo
+	 * @return int
+	 */
+	function addSignature($signcert, $privkey, $password = '', $name = null, $location = null, $reason = null, $contactinfo = null) {
+		$sigId = ++$this->numObj;
+		$this->o_sig($sigId, 'new', [
+		  'SignCert' => $signcert,
+		  'PrivKey' => $privkey,
+		  'Password' => $password,
+		  'Name' => $name,
+		  'Location' => $location,
+		  'Reason' => $reason,
+		  'ContactInfo' => $contactinfo
+		]);
+
+		return $sigId;
+	}
+
+	/**
+	 * add field to form
+	 *
+	 * @param string $type ACROFORM_FIELD_*
+	 * @param string $name
+	 * @param $x0
+	 * @param $y0
+	 * @param $x1
+	 * @param $y1
+	 * @param integer $ff Field Flag ACROFORM_FIELD_*_*
+	 * @param float $size
+	 * @param array $color
+	 * @return int
+	 */
+	public function addFormField($type, $name, $x0, $y0, $x1, $y1, $ff = 0, $size = 10.0, $color = [0, 0, 0])
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$color = implode(' ', $color) . ' rg';
+
+		$currentFontNum = $this->currentFontNum;
+		$font = array_filter(
+			$this->objects[$this->currentNode]['info']['fonts'],
+			function ($item) use ($currentFontNum) { return $item['fontNum'] == $currentFontNum; }
+		);
+
+		$this->o_acroform($this->acroFormId, 'font',
+		  ['objNum' => $font[0]['objNum'], 'fontNum' => $font[0]['fontNum']]);
+
+		$fieldId = ++$this->numObj;
+		$this->o_field($fieldId, 'new', [
+		  'rect' => [$x0, $y0, $x1, $y1],
+		  'F' => 4,
+		  'FT' => "/$type",
+		  'T' => $name,
+		  'Ff' => $ff,
+		  'pageid' => $this->currentPage,
+		  'da' => "$color /F$this->currentFontNum " . sprintf('%.1F Tf ', $size)
+		]);
+
+		return $fieldId;
+	}
+
+	/**
+	 * set Field value
+	 *
+	 * @param integer $numFieldObj
+	 * @param string $value
+	 */
+	public function setFormFieldValue($numFieldObj, $value)
+	{
+		$this->o_field($numFieldObj, 'set', ['value' => $value]);
+	}
+
+	/**
+	 * set Field value (reference)
+	 *
+	 * @param integer $numFieldObj
+	 * @param integer $numObj Object number
+	 */
+	public function setFormFieldRefValue($numFieldObj, $numObj)
+	{
+		$this->o_field($numFieldObj, 'set', ['refvalue' => $numObj]);
+	}
+
+	/**
+	 * set Field Appearanc (reference)
+	 *
+	 * @param integer $numFieldObj
+	 * @param integer $normalNumObj
+	 * @param integer|null $rolloverNumObj
+	 * @param integer|null $downNumObj
+	 */
+	public function setFormFieldAppearance($numFieldObj, $normalNumObj, $rolloverNumObj = null, $downNumObj = null)
+	{
+		$appearance['N'] = $normalNumObj;
+
+		if ($rolloverNumObj !== null) {
+			$appearance['R'] = $rolloverNumObj;
+		}
+
+		if ($downNumObj !== null) {
+			$appearance['D'] = $downNumObj;
+		}
+
+		$this->o_field($numFieldObj, 'set', ['appearance' => $appearance]);
+	}
+
+	/**
+	 * set Choice Field option values
+	 *
+	 * @param integer $numFieldObj
+	 * @param array $value
+	 */
+	public function setFormFieldOpt($numFieldObj, $value)
+	{
+		$this->o_field($numFieldObj, 'set', ['options' => $value]);
+	}
+
+	/**
+	 * add form to document
+	 *
+	 * @param integer $sigFlags
+	 * @param boolean $needAppearances
+	 */
+	public function addForm($sigFlags = 0, $needAppearances = false)
+	{
+		$this->acroFormId = ++$this->numObj;
+		$this->o_acroform($this->acroFormId, 'new', [
+		  'NeedAppearances' => $needAppearances ? 'true' : 'false',
+		  'SigFlags' => $sigFlags
+		]);
+	}
+
+	/**
+	 * save the current graphic state
+	 */
+	function save()
+	{
+		// we must reset the color cache or it will keep bad colors after clipping
+		$this->currentColor = null;
+		$this->currentStrokeColor = null;
+		$this->addContent("\nq");
+	}
+
+	/**
+	 * restore the last graphic state
+	 */
+	function restore()
+	{
+		// we must reset the color cache or it will keep bad colors after clipping
+		$this->currentColor = null;
+		$this->currentStrokeColor = null;
+		$this->addContent("\nQ");
+	}
+
+	/**
+	 * draw a clipping rectangle, all the elements added after this will be clipped
+	 *
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $width
+	 * @param float $height
+	 */
+	function clippingRectangle($x1, $y1, $width, $height)
+	{
+		$this->save();
+		$this->addContent(sprintf("\n%.3F %.3F %.3F %.3F re W n", $x1, $y1, $width, $height));
+	}
+
+	/**
+	 * draw a clipping rounded rectangle, all the elements added after this will be clipped
+	 *
+	 * @param float $x1
+	 * @param float $y1
+	 * @param float $w
+	 * @param float $h
+	 * @param float $rTL
+	 * @param float $rTR
+	 * @param float $rBR
+	 * @param float $rBL
+	 */
+	function clippingRectangleRounded($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL)
+	{
+		$this->save();
+
+		// start: top edge, left end
+		$this->addContent(sprintf("\n%.3F %.3F m ", $x1, $y1 - $rTL + $h));
+
+		// line: bottom edge, left end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1, $y1 + $rBL));
+
+		// curve: bottom-left corner
+		$this->ellipse($x1 + $rBL, $y1 + $rBL, $rBL, 0, 0, 8, 180, 270, false, false, false, true);
+
+		// line: right edge, bottom end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w - $rBR, $y1));
+
+		// curve: bottom-right corner
+		$this->ellipse($x1 + $w - $rBR, $y1 + $rBR, $rBR, 0, 0, 8, 270, 360, false, false, false, true);
+
+		// line: right edge, top end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $w, $y1 + $h - $rTR));
+
+		// curve: bottom-right corner
+		$this->ellipse($x1 + $w - $rTR, $y1 + $h - $rTR, $rTR, 0, 0, 8, 0, 90, false, false, false, true);
+
+		// line: bottom edge, right end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rTL, $y1 + $h));
+
+		// curve: top-right corner
+		$this->ellipse($x1 + $rTL, $y1 + $h - $rTL, $rTL, 0, 0, 8, 90, 180, false, false, false, true);
+
+		// line: top edge, left end
+		$this->addContent(sprintf("\n%.3F %.3F l ", $x1 + $rBL, $y1));
+
+		// Close & clip
+		$this->addContent(" W n");
+	}
+
+	/**
+	 * draw a clipping polygon, the syntax for this is similar to the GD polygon command
+	 *
+	 * @param float[] $p
+	 */
+	public function clippingPolygon(array $p): void
+	{
+		$this->save();
+
+		$this->addContent(sprintf("\n%.3F %.3F m ", $p[0], $p[1]));
+
+		$n = count($p);
+		for ($i = 2; $i < $n; $i = $i + 2) {
+			$this->addContent(sprintf("%.3F %.3F l ", $p[$i], $p[$i + 1]));
+		}
+
+		$this->addContent("W n");
+	}
+
+	/**
+	 * ends the last clipping shape
+	 */
+	function clippingEnd()
+	{
+		$this->restore();
+	}
+
+	/**
+	 * scale
+	 *
+	 * @param float $s_x scaling factor for width as percent
+	 * @param float $s_y scaling factor for height as percent
+	 * @param float $x   Origin abscissa
+	 * @param float $y   Origin ordinate
+	 */
+	function scale($s_x, $s_y, $x, $y)
+	{
+		$y = $this->currentPageSize["height"] - $y;
+
+		$tm = [
+			$s_x,
+			0,
+			0,
+			$s_y,
+			$x * (1 - $s_x),
+			$y * (1 - $s_y)
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * translate
+	 *
+	 * @param float $t_x movement to the right
+	 * @param float $t_y movement to the bottom
+	 */
+	function translate($t_x, $t_y)
+	{
+		$tm = [
+			1,
+			0,
+			0,
+			1,
+			$t_x,
+			-$t_y
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * rotate
+	 *
+	 * @param float $angle angle in degrees for counter-clockwise rotation
+	 * @param float $x     Origin abscissa
+	 * @param float $y     Origin ordinate
+	 */
+	function rotate($angle, $x, $y)
+	{
+		$y = $this->currentPageSize["height"] - $y;
+
+		$a = deg2rad($angle);
+		$cos_a = cos($a);
+		$sin_a = sin($a);
+
+		$tm = [
+			$cos_a,
+			-$sin_a,
+			$sin_a,
+			$cos_a,
+			$x - $sin_a * $y - $cos_a * $x,
+			$y - $cos_a * $y + $sin_a * $x,
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * skew
+	 *
+	 * @param float $angle_x
+	 * @param float $angle_y
+	 * @param float $x Origin abscissa
+	 * @param float $y Origin ordinate
+	 */
+	function skew($angle_x, $angle_y, $x, $y)
+	{
+		$y = $this->currentPageSize["height"] - $y;
+
+		$tan_x = tan(deg2rad($angle_x));
+		$tan_y = tan(deg2rad($angle_y));
+
+		$tm = [
+			1,
+			-$tan_y,
+			-$tan_x,
+			1,
+			$tan_x * $y,
+			$tan_y * $x,
+		];
+
+		$this->transform($tm);
+	}
+
+	/**
+	 * apply graphic transformations
+	 *
+	 * @param array $tm transformation matrix
+	 */
+	function transform($tm)
+	{
+		$this->addContent(vsprintf("\n %.3F %.3F %.3F %.3F %.3F %.3F cm", $tm));
+	}
+
+	/**
+	 * add a new page to the document
+	 * this also makes the new page the current active object
+	 *
+	 * @param int $insert
+	 * @param int $id
+	 * @param string $pos
+	 * @return int
+	 */
+	function newPage($insert = 0, $id = 0, $pos = 'after')
+	{
+		// if there is a state saved, then go up the stack closing them
+		// then on the new page, re-open them with the right setings
+
+		if ($this->nStateStack) {
+			for ($i = $this->nStateStack; $i >= 1; $i--) {
+				$this->restoreState($i);
+			}
+		}
+
+		$this->numObj++;
+
+		if ($insert) {
+			// the id from the ezPdf class is the id of the contents of the page, not the page object itself
+			// query that object to find the parent
+			$rid = $this->objects[$id]['onPage'];
+			$opt = ['rid' => $rid, 'pos' => $pos];
+			$this->o_page($this->numObj, 'new', $opt);
+		} else {
+			$this->o_page($this->numObj, 'new');
+		}
+
+		// if there is a stack saved, then put that onto the page
+		if ($this->nStateStack) {
+			for ($i = 1; $i <= $this->nStateStack; $i++) {
+				$this->saveState($i);
+			}
+		}
+
+		// and if there has been a stroke or fill color set, then transfer them
+		if (isset($this->currentColor)) {
+			$this->setColor($this->currentColor, true);
+		}
+
+		if (isset($this->currentStrokeColor)) {
+			$this->setStrokeColor($this->currentStrokeColor, true);
+		}
+
+		// if there is a line style set, then put this in too
+		if (mb_strlen($this->currentLineStyle, '8bit')) {
+			$this->addContent("\n$this->currentLineStyle");
+		}
+
+		// the call to the o_page object set currentContents to the present page, so this can be returned as the page id
+		return $this->currentContents;
+	}
+
+	/**
+	 * Streams the PDF to the client.
+	 *
+	 * @param string $filename The filename to present to the client.
+	 * @param array $options Associative array: 'compress' => 1 or 0 (default 1); 'Attachment' => 1 or 0 (default 1).
+	 */
+	function stream($filename = "document.pdf", $options = [])
+	{
+		if (headers_sent()) {
+			die("Unable to stream pdf: headers already sent");
+		}
+
+		if (!isset($options["compress"])) $options["compress"] = true;
+		if (!isset($options["Attachment"])) $options["Attachment"] = true;
+
+		$debug = !$options['compress'];
+		$tmp = ltrim($this->output($debug));
+
+		header("Cache-Control: private");
+		header("Content-Type: application/pdf");
+		header("Content-Length: " . mb_strlen($tmp, "8bit"));
+
+		$filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
+		$attachment = $options["Attachment"] ? "attachment" : "inline";
+
+		$encoding = mb_detect_encoding($filename);
+		$fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding);
+		$fallbackfilename = str_replace("\"", "", $fallbackfilename);
+		$encodedfilename = rawurlencode($filename);
+
+		$contentDisposition = "Content-Disposition: $attachment; filename=\"$fallbackfilename\"";
+		if ($fallbackfilename !== $filename) {
+			$contentDisposition .= "; filename*=UTF-8''$encodedfilename";
+		}
+		header($contentDisposition);
+
+		echo $tmp;
+		flush();
+	}
+
+	/**
+	 * return the height in units of the current font in the given size
+	 *
+	 * @param float $size
+	 *
+	 * @return float
+	 */
+	public function getFontHeight(float $size): float
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$font = $this->fonts[$this->currentFont];
+
+		// for the current font, and the given size, what is the height of the font in user units
+		if (isset($font['Ascender']) && isset($font['Descender'])) {
+			$h = $font['Ascender'] - $font['Descender'];
+		} else {
+			$h = $font['FontBBox'][3] - $font['FontBBox'][1];
+		}
+
+		// have to adjust by a font offset for Windows fonts.  unfortunately it looks like
+		// the bounding box calculations are wrong and I don't know why.
+		if (isset($font['FontHeightOffset'])) {
+			// For CourierNew from Windows this needs to be -646 to match the
+			// Adobe native Courier font.
+			//
+			// For FreeMono from GNU this needs to be -337 to match the
+			// Courier font.
+			//
+			// Both have been added manually to the .afm and .ufm files.
+			$h += (int)$font['FontHeightOffset'];
+		}
+
+		return $size * $h / 1000;
+	}
+
+	/**
+	 * @param float $size
+	 *
+	 * @return float
+	 */
+	public function getFontXHeight(float $size): float
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$font = $this->fonts[$this->currentFont];
+
+		// for the current font, and the given size, what is the height of the font in user units
+		if (isset($font['XHeight'])) {
+			$xh = $font['Ascender'] - $font['Descender'];
+		} else {
+			$xh = $this->getFontHeight($size) / 2;
+		}
+
+		return $size * $xh / 1000;
+	}
+
+	/**
+	 * return the font descender, this will normally return a negative number
+	 * if you add this number to the baseline, you get the level of the bottom of the font
+	 * it is in the pdf user units
+	 *
+	 * @param float $size
+	 *
+	 * @return float
+	 */
+	public function getFontDescender(float $size): float
+	{
+		// note that this will most likely return a negative value
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		//$h = $this->fonts[$this->currentFont]['FontBBox'][1];
+		$h = $this->fonts[$this->currentFont]['Descender'];
+
+		return $size * $h / 1000;
+	}
+
+	/**
+	 * filter the text, this is applied to all text just before being inserted into the pdf document
+	 * it escapes the various things that need to be escaped, and so on
+	 *
+	 * @param $text
+	 * @param bool $bom
+	 * @param bool $convert_encoding
+	 * @return string
+	 */
+	function filterText($text, $bom = true, $convert_encoding = true)
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		if ($convert_encoding) {
+			$cf = $this->currentFont;
+			if (isset($this->fonts[$cf]) && $this->fonts[$cf]['isUnicode']) {
+				$text = $this->utf8toUtf16BE($text, $bom);
+			} else {
+				//$text = html_entity_decode($text, ENT_QUOTES);
+				$text = mb_convert_encoding($text, self::$targetEncoding, 'UTF-8');
+			}
+		} elseif ($bom) {
+			$text = $this->utf8toUtf16BE($text, $bom);
+		}
+
+		// the chr(13) substitution fixes a bug seen in TCPDF (bug #1421290)
+		return strtr($text, [')' => '\\)', '(' => '\\(', '\\' => '\\\\', chr(13) => '\r']);
+	}
+
+	/**
+	 * return array containing codepoints (UTF-8 character values) for the
+	 * string passed in.
+	 *
+	 * based on the excellent TCPDF code by Nicola Asuni and the
+	 * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
+	 *
+	 * @param string $text UTF-8 string to process
+	 * @return array UTF-8 codepoints array for the string
+	 */
+	function utf8toCodePointsArray(&$text)
+	{
+		$length = mb_strlen($text, '8bit'); // http://www.php.net/manual/en/function.mb-strlen.php#77040
+		$unicode = []; // array containing unicode values
+		$bytes = []; // array containing single character byte sequences
+		$numbytes = 1; // number of octets needed to represent the UTF-8 character
+
+		for ($i = 0; $i < $length; $i++) {
+			$c = ord($text[$i]); // get one string character at time
+			if (count($bytes) === 0) { // get starting octect
+				if ($c <= 0x7F) {
+					$unicode[] = $c; // use the character "as is" because is ASCII
+					$numbytes = 1;
+				} elseif (($c >> 0x05) === 0x06) { // 2 bytes character (0x06 = 110 BIN)
+					$bytes[] = ($c - 0xC0) << 0x06;
+					$numbytes = 2;
+				} elseif (($c >> 0x04) === 0x0E) { // 3 bytes character (0x0E = 1110 BIN)
+					$bytes[] = ($c - 0xE0) << 0x0C;
+					$numbytes = 3;
+				} elseif (($c >> 0x03) === 0x1E) { // 4 bytes character (0x1E = 11110 BIN)
+					$bytes[] = ($c - 0xF0) << 0x12;
+					$numbytes = 4;
+				} else {
+					// use replacement character for other invalid sequences
+					$unicode[] = 0xFFFD;
+					$bytes = [];
+					$numbytes = 1;
+				}
+			} elseif (($c >> 0x06) === 0x02) { // bytes 2, 3 and 4 must start with 0x02 = 10 BIN
+				$bytes[] = $c - 0x80;
+				if (count($bytes) === $numbytes) {
+					// compose UTF-8 bytes to a single unicode value
+					$c = $bytes[0];
+					for ($j = 1; $j < $numbytes; $j++) {
+						$c += ($bytes[$j] << (($numbytes - $j - 1) * 0x06));
+					}
+					if ((($c >= 0xD800) and ($c <= 0xDFFF)) or ($c >= 0x10FFFF)) {
+						// The definition of UTF-8 prohibits encoding character numbers between
+						// U+D800 and U+DFFF, which are reserved for use with the UTF-16
+						// encoding form (as surrogate pairs) and do not directly represent
+						// characters.
+						$unicode[] = 0xFFFD; // use replacement character
+					} else {
+						$unicode[] = $c; // add char to array
+					}
+					// reset data for next char
+					$bytes = [];
+					$numbytes = 1;
+				}
+			} else {
+				// use replacement character for other invalid sequences
+				$unicode[] = 0xFFFD;
+				$bytes = [];
+				$numbytes = 1;
+			}
+		}
+
+		return $unicode;
+	}
+
+	/**
+	 * convert UTF-8 to UTF-16 with an additional byte order marker
+	 * at the front if required.
+	 *
+	 * based on the excellent TCPDF code by Nicola Asuni and the
+	 * RFC for UTF-8 at http://www.faqs.org/rfcs/rfc3629.html
+	 *
+	 * @param string  $text UTF-8 string to process
+	 * @param boolean $bom  whether to add the byte order marker
+	 * @return string UTF-16 result string
+	 */
+	function utf8toUtf16BE(&$text, $bom = true)
+	{
+		$out = $bom ? "\xFE\xFF" : '';
+
+		$unicode = $this->utf8toCodePointsArray($text);
+		foreach ($unicode as $c) {
+			if ($c === 0xFFFD) {
+				$out .= "\xFF\xFD"; // replacement character
+			} elseif ($c < 0x10000) {
+				$out .= chr($c >> 0x08) . chr($c & 0xFF);
+			} else {
+				$c -= 0x10000;
+				$w1 = 0xD800 | ($c >> 0x10);
+				$w2 = 0xDC00 | ($c & 0x3FF);
+				$out .= chr($w1 >> 0x08) . chr($w1 & 0xFF) . chr($w2 >> 0x08) . chr($w2 & 0xFF);
+			}
+		}
+
+		return $out;
+	}
+
+	/**
+	 * given a start position and information about how text is to be laid out, calculate where
+	 * on the page the text will end
+	 *
+	 * @param $x
+	 * @param $y
+	 * @param $angle
+	 * @param $size
+	 * @param $wa
+	 * @param $text
+	 * @return array
+	 */
+	private function getTextPosition($x, $y, $angle, $size, $wa, $text)
+	{
+		// given this information return an array containing x and y for the end position as elements 0 and 1
+		$w = $this->getTextWidth($size, $text);
+
+		// need to adjust for the number of spaces in this text
+		$words = explode(' ', $text);
+		$nspaces = count($words) - 1;
+		$w += $wa * $nspaces;
+		$a = deg2rad((float)$angle);
+
+		return [cos($a) * $w + $x, -sin($a) * $w + $y];
+	}
+
+	/**
+	 * Callback method used by smallCaps
+	 *
+	 * @param array $matches
+	 *
+	 * @return string
+	 */
+	function toUpper($matches)
+	{
+		return mb_strtoupper($matches[0]);
+	}
+
+	function concatMatches($matches)
+	{
+		$str = "";
+		foreach ($matches as $match) {
+			$str .= $match[0];
+		}
+
+		return $str;
+	}
+
+	/**
+	 * register text for font subsetting
+	 *
+	 * @param string $font
+	 * @param string $text
+	 */
+	function registerText($font, $text)
+	{
+		if (!$this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
+			return;
+		}
+
+		if (!isset($this->stringSubsets[$font])) {
+			$base_subset = "\u{fffd}\u{fffe}\u{ffff}";
+			$this->stringSubsets[$font] = $this->utf8toCodePointsArray($base_subset);
+		}
+
+		$this->stringSubsets[$font] = array_unique(
+			array_merge($this->stringSubsets[$font], $this->utf8toCodePointsArray($text))
+		);
+	}
+
+	/**
+	 * add text to the document, at a specified location, size and angle on the page
+	 *
+	 * @param float  $x
+	 * @param float  $y
+	 * @param float  $size
+	 * @param string $text
+	 * @param float  $angle
+	 * @param float  $wordSpaceAdjust
+	 * @param float  $charSpaceAdjust
+	 * @param bool   $smallCaps
+	 */
+	function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0, $charSpaceAdjust = 0, $smallCaps = false)
+	{
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$text = str_replace(["\r", "\n"], "", $text);
+
+		// if ($smallCaps) {
+		//     preg_match_all("/(\P{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
+		//     $lower = $this->concatMatches($matches);
+		//     d($lower);
+
+		//     preg_match_all("/(\p{Ll}+)/u", $text, $matches, PREG_SET_ORDER);
+		//     $other = $this->concatMatches($matches);
+		//     d($other);
+
+		//     $text = preg_replace_callback("/\p{Ll}/u", array($this, "toUpper"), $text);
+		// }
+
+		// if there are any open callbacks, then they should be called, to show the start of the line
+		if ($this->nCallback > 0) {
+			for ($i = $this->nCallback; $i > 0; $i--) {
+				// call each function
+				$info = [
+					'x'         => $x,
+					'y'         => $y,
+					'angle'     => $angle,
+					'status'    => 'sol',
+					'p'         => $this->callback[$i]['p'],
+					'nCallback' => $this->callback[$i]['nCallback'],
+					'height'    => $this->callback[$i]['height'],
+					'descender' => $this->callback[$i]['descender']
+				];
+
+				$func = $this->callback[$i]['f'];
+				$this->$func($info);
+			}
+		}
+
+		if ($angle == 0) {
+			$this->addContent(sprintf("\nBT %.3F %.3F Td", $x, $y));
+		} else {
+			$a = deg2rad((float)$angle);
+			$this->addContent(
+				sprintf("\nBT %.3F %.3F %.3F %.3F %.3F %.3F Tm", cos($a), -sin($a), sin($a), cos($a), $x, $y)
+			);
+		}
+
+		if ($wordSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tw", $wordSpaceAdjust));
+		}
+
+		if ($charSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tc", $charSpaceAdjust));
+		}
+
+		$len = mb_strlen($text);
+		$start = 0;
+
+		if ($start < $len) {
+			$part = $text; // OAR - Don't need this anymore, given that $start always equals zero.  substr($text, $start);
+			$place_text = $this->filterText($part, false);
+			// modify unicode text so that extra word spacing is manually implemented (bug #)
+			if ($this->fonts[$this->currentFont]['isUnicode'] && $wordSpaceAdjust != 0) {
+				$space_scale = 1000 / $size;
+				$place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20" . (-round($space_scale * $wordSpaceAdjust)) . "\x00\x20(", $place_text);
+			}
+			$this->addContent(" /F$this->currentFontNum " . sprintf('%.1F Tf ', $size));
+			$this->addContent(" [($place_text)] TJ");
+		}
+
+		if ($wordSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tw", 0));
+		}
+
+		if ($charSpaceAdjust != 0) {
+			$this->addContent(sprintf(" %.3F Tc", 0));
+		}
+
+		$this->addContent(' ET');
+
+		// if there are any open callbacks, then they should be called, to show the end of the line
+		if ($this->nCallback > 0) {
+			for ($i = $this->nCallback; $i > 0; $i--) {
+				// call each function
+				$tmp = $this->getTextPosition($x, $y, $angle, $size, $wordSpaceAdjust, $text);
+				$info = [
+					'x'         => $tmp[0],
+					'y'         => $tmp[1],
+					'angle'     => $angle,
+					'status'    => 'eol',
+					'p'         => $this->callback[$i]['p'],
+					'nCallback' => $this->callback[$i]['nCallback'],
+					'height'    => $this->callback[$i]['height'],
+					'descender' => $this->callback[$i]['descender']
+				];
+				$func = $this->callback[$i]['f'];
+				$this->$func($info);
+			}
+		}
+
+		if ($this->fonts[$this->currentFont]['isSubsetting']) {
+			$this->registerText($this->currentFont, $text);
+		}
+	}
+
+	/**
+	 * calculate how wide a given text string will be on a page, at a given size.
+	 * this can be called externally, but is also used by the other class functions
+	 *
+	 * @param float  $size
+	 * @param string $text
+	 * @param float  $wordSpacing
+	 * @param float  $charSpacing
+	 *
+	 * @return float
+	 */
+	public function getTextWidth(float $size, string $text, float $wordSpacing = 0.0, float $charSpacing = 0.0): float
+	{
+		static $ord_cache = [];
+
+		// this function should not change any of the settings, though it will need to
+		// track any directives which change during calculation, so copy them at the start
+		// and put them back at the end.
+		$store_currentTextState = $this->currentTextState;
+
+		if (!$this->numFonts) {
+			$this->selectFont($this->defaultFont);
+		}
+
+		$text = str_replace(["\r", "\n"], "", $text);
+
+		// hmm, this is where it all starts to get tricky - use the font information to
+		// calculate the width of each character, add them up and convert to user units
+		$w = 0;
+		$cf = $this->currentFont;
+		$current_font = $this->fonts[$cf];
+		$space_scale = 1000 / ($size > 0 ? $size : 1);
+
+		if ($current_font['isUnicode']) {
+			// for Unicode, use the code points array to calculate width rather
+			// than just the string itself
+			$unicode = $this->utf8toCodePointsArray($text);
+
+			foreach ($unicode as $char) {
+				// check if we have to replace character
+				if (isset($current_font['differences'][$char])) {
+					$char = $current_font['differences'][$char];
+				}
+
+				if (isset($current_font['C'][$char])) {
+					$char_width = $current_font['C'][$char];
+
+					// add the character width
+					$w += $char_width;
+
+					// add additional padding for space
+					if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
+						$w += $wordSpacing * $space_scale;
+					}
+				}
+			}
+
+			// add additional char spacing
+			if ($charSpacing != 0) {
+				$w += $charSpacing * $space_scale * count($unicode);
+			}
+
+		} else {
+			// If CPDF is in Unicode mode but the current font does not support Unicode we need to convert the character set to Windows-1252
+			if ($this->isUnicode) {
+				$text = mb_convert_encoding($text, 'Windows-1252', 'UTF-8');
+			}
+
+			$len = mb_strlen($text, 'Windows-1252');
+
+			for ($i = 0; $i < $len; $i++) {
+				$c = $text[$i];
+				$char = isset($ord_cache[$c]) ? $ord_cache[$c] : ($ord_cache[$c] = ord($c));
+
+				// check if we have to replace character
+				if (isset($current_font['differences'][$char])) {
+					$char = $current_font['differences'][$char];
+				}
+
+				if (isset($current_font['C'][$char])) {
+					$char_width = $current_font['C'][$char];
+
+					// add the character width
+					$w += $char_width;
+
+					// add additional padding for space
+					if (isset($current_font['codeToName'][$char]) && $current_font['codeToName'][$char] === 'space') {  // Space
+						$w += $wordSpacing * $space_scale;
+					}
+				}
+			}
+
+			// add additional char spacing
+			if ($charSpacing != 0) {
+				$w += $charSpacing * $space_scale * $len;
+			}
+		}
+
+		$this->currentTextState = $store_currentTextState;
+		$this->setCurrentFont();
+
+		return $w * $size / 1000;
+	}
+
+	/**
+	 * this will be called at a new page to return the state to what it was on the
+	 * end of the previous page, before the stack was closed down
+	 * This is to get around not being able to have open 'q' across pages
+	 *
+	 * @param int $pageEnd
+	 */
+	function saveState($pageEnd = 0)
+	{
+		if ($pageEnd) {
+			// this will be called at a new page to return the state to what it was on the
+			// end of the previous page, before the stack was closed down
+			// This is to get around not being able to have open 'q' across pages
+			$opt = $this->stateStack[$pageEnd];
+			// ok to use this as stack starts numbering at 1
+			$this->setColor($opt['col'], true);
+			$this->setStrokeColor($opt['str'], true);
+			$this->addContent("\n" . $opt['lin']);
+			//    $this->currentLineStyle = $opt['lin'];
+		} else {
+			$this->nStateStack++;
+			$this->stateStack[$this->nStateStack] = [
+				'col' => $this->currentColor,
+				'str' => $this->currentStrokeColor,
+				'lin' => $this->currentLineStyle
+			];
+		}
+
+		$this->save();
+	}
+
+	/**
+	 * restore a previously saved state
+	 *
+	 * @param int $pageEnd
+	 */
+	function restoreState($pageEnd = 0)
+	{
+		if (!$pageEnd) {
+			$n = $this->nStateStack;
+			$this->currentColor = $this->stateStack[$n]['col'];
+			$this->currentStrokeColor = $this->stateStack[$n]['str'];
+			$this->addContent("\n" . $this->stateStack[$n]['lin']);
+			$this->currentLineStyle = $this->stateStack[$n]['lin'];
+			$this->stateStack[$n] = null;
+			unset($this->stateStack[$n]);
+			$this->nStateStack--;
+		}
+
+		$this->restore();
+	}
+
+	/**
+	 * make a loose object, the output will go into this object, until it is closed, then will revert to
+	 * the current one.
+	 * this object will not appear until it is included within a page.
+	 * the function will return the object number
+	 *
+	 * @return int
+	 */
+	function openObject()
+	{
+		$this->nStack++;
+		$this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
+		// add a new object of the content type, to hold the data flow
+		$this->numObj++;
+		$this->o_contents($this->numObj, 'new');
+		$this->currentContents = $this->numObj;
+		$this->looseObjects[$this->numObj] = 1;
+
+		return $this->numObj;
+	}
+
+	/**
+	 * open an existing object for editing
+	 *
+	 * @param $id
+	 */
+	function reopenObject($id)
+	{
+		$this->nStack++;
+		$this->stack[$this->nStack] = ['c' => $this->currentContents, 'p' => $this->currentPage];
+		$this->currentContents = $id;
+
+		// also if this object is the primary contents for a page, then set the current page to its parent
+		if (isset($this->objects[$id]['onPage'])) {
+			$this->currentPage = $this->objects[$id]['onPage'];
+		}
+	}
+
+	/**
+	 * close an object
+	 */
+	function closeObject()
+	{
+		// close the object, as long as there was one open in the first place, which will be indicated by
+		// an objectId on the stack.
+		if ($this->nStack > 0) {
+			$this->currentContents = $this->stack[$this->nStack]['c'];
+			$this->currentPage = $this->stack[$this->nStack]['p'];
+			$this->nStack--;
+			// easier to probably not worry about removing the old entries, they will be overwritten
+			// if there are new ones.
+		}
+	}
+
+	/**
+	 * stop an object from appearing on pages from this point on
+	 *
+	 * @param $id
+	 */
+	function stopObject($id)
+	{
+		// if an object has been appearing on pages up to now, then stop it, this page will
+		// be the last one that could contain it.
+		if (isset($this->addLooseObjects[$id])) {
+			$this->addLooseObjects[$id] = '';
+		}
+	}
+
+	/**
+	 * after an object has been created, it wil only show if it has been added, using this function.
+	 *
+	 * @param $id
+	 * @param string $options
+	 */
+	function addObject($id, $options = 'add')
+	{
+		// add the specified object to the page
+		if (isset($this->looseObjects[$id]) && $this->currentContents != $id) {
+			// then it is a valid object, and it is not being added to itself
+			switch ($options) {
+				case 'all':
+					// then this object is to be added to this page (done in the next block) and
+					// all future new pages.
+					$this->addLooseObjects[$id] = 'all';
+
+				case 'add':
+					if (isset($this->objects[$this->currentContents]['onPage'])) {
+						// then the destination contents is the primary for the page
+						// (though this object is actually added to that page)
+						$this->o_page($this->objects[$this->currentContents]['onPage'], 'content', $id);
+					}
+					break;
+
+				case 'even':
+					$this->addLooseObjects[$id] = 'even';
+					$pageObjectId = $this->objects[$this->currentContents]['onPage'];
+					if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 0) {
+						$this->addObject($id);
+						// hacky huh :)
+					}
+					break;
+
+				case 'odd':
+					$this->addLooseObjects[$id] = 'odd';
+					$pageObjectId = $this->objects[$this->currentContents]['onPage'];
+					if ($this->objects[$pageObjectId]['info']['pageNum'] % 2 == 1) {
+						$this->addObject($id);
+						// hacky huh :)
+					}
+					break;
+
+				case 'next':
+					$this->addLooseObjects[$id] = 'all';
+					break;
+
+				case 'nexteven':
+					$this->addLooseObjects[$id] = 'even';
+					break;
+
+				case 'nextodd':
+					$this->addLooseObjects[$id] = 'odd';
+					break;
+			}
+		}
+	}
+
+	/**
+	 * return a storable representation of a specific object
+	 *
+	 * @param $id
+	 * @return string|null
+	 */
+	function serializeObject($id)
+	{
+		if (array_key_exists($id, $this->objects)) {
+			return serialize($this->objects[$id]);
+		}
+
+		return null;
+	}
+
+	/**
+	 * restore an object from its stored representation. Returns its new object id.
+	 *
+	 * @param $obj
+	 * @return int
+	 */
+	function restoreSerializedObject($obj)
+	{
+		$obj_id = $this->openObject();
+		$this->objects[$obj_id] = unserialize($obj);
+		$this->closeObject();
+
+		return $obj_id;
+	}
+
+	/**
+	 * Embeds a file inside the PDF
+	 *
+	 * @param string $filepath path to the file to store inside the PDF
+	 * @param string $embeddedFilename the filename displayed in the list of embedded files
+	 * @param string $description a description in the list of embedded files
+	 */
+	public function addEmbeddedFile(string $filepath, string $embeddedFilename, string $description): void
+	{
+		$this->numObj++;
+		$this->o_embedded_file_dictionary(
+			$this->numObj,
+			'new',
+			[
+				'filepath' => $filepath,
+				'filename' => $embeddedFilename,
+				'description' => $description
+			]
+		);
+	}
+
+	/**
+	 * Add content to the documents info object
+	 *
+	 * @param string|array $label
+	 * @param string       $value
+	 */
+	public function addInfo($label, string $value = ""): void
+	{
+		// this will only work if the label is one of the valid ones.
+		// modify this so that arrays can be passed as well.
+		// if $label is an array then assume that it is key => value pairs
+		// else assume that they are both scalar, anything else will probably error
+		if (is_array($label)) {
+			foreach ($label as $l => $v) {
+				$this->o_info($this->infoObject, $l, (string) $v);
+			}
+		} else {
+			$this->o_info($this->infoObject, $label, $value);
+		}
+	}
+
+	/**
+	 * set the viewer preferences of the document, it is up to the browser to obey these.
+	 *
+	 * @param $label
+	 * @param int $value
+	 */
+	function setPreferences($label, $value = 0)
+	{
+		// this will only work if the label is one of the valid ones.
+		if (is_array($label)) {
+			foreach ($label as $l => $v) {
+				$this->o_catalog($this->catalogId, 'viewerPreferences', [$l => $v]);
+			}
+		} else {
+			$this->o_catalog($this->catalogId, 'viewerPreferences', [$label => $value]);
+		}
+	}
+
+	/**
+	 * extract an integer from a position in a byte stream
+	 *
+	 * @param $data
+	 * @param $pos
+	 * @param $num
+	 * @return int
+	 */
+	private function getBytes(&$data, $pos, $num)
+	{
+		// return the integer represented by $num bytes from $pos within $data
+		$ret = 0;
+		for ($i = 0; $i < $num; $i++) {
+			$ret *= 256;
+			$ret += ord($data[$pos + $i]);
+		}
+
+		return $ret;
+	}
+
+	/**
+	 * Check if image already added to pdf image directory.
+	 * If yes, need not to create again (pass empty data)
+	 *
+	 * @param string $imgname
+	 * @return bool
+	 */
+	function image_iscached($imgname)
+	{
+		return isset($this->imagelist[$imgname]);
+	}
+
+	/**
+	 * add a PNG image into the document, from a GD object
+	 * this should work with remote files
+	 *
+	 * @param \GdImage|resource $img A GD resource
+	 * @param string $file The PNG file
+	 * @param float $x X position
+	 * @param float $y Y position
+	 * @param float $w Width
+	 * @param float $h Height
+	 * @param bool $is_mask true if the image is a mask
+	 * @param bool $mask true if the image is masked
+	 * @throws Exception
+	 */
+	function addImagePng(&$img, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
+	{
+		if (!function_exists("imagepng")) {
+			throw new \Exception("The PHP GD extension is required, but is not installed.");
+		}
+
+		//if already cached, need not to read again
+		if (isset($this->imagelist[$file])) {
+			$data = null;
+		} else {
+			// Example for transparency handling on new image. Retain for current image
+			// $tIndex = imagecolortransparent($img);
+			// if ($tIndex > 0) {
+			//   $tColor    = imagecolorsforindex($img, $tIndex);
+			//   $new_tIndex    = imagecolorallocate($new_img, $tColor['red'], $tColor['green'], $tColor['blue']);
+			//   imagefill($new_img, 0, 0, $new_tIndex);
+			//   imagecolortransparent($new_img, $new_tIndex);
+			// }
+			// blending mode (literal/blending) on drawing into current image. not relevant when not saved or not drawn
+			//imagealphablending($img, true);
+
+			//default, but explicitely set to ensure pdf compatibility
+			imagesavealpha($img, false/*!$is_mask && !$mask*/);
+
+			$error = 0;
+			//DEBUG_IMG_TEMP
+			//debugpng
+			if (defined("DEBUGPNG") && DEBUGPNG) {
+				print '[addImagePng ' . $file . ']';
+			}
+
+			ob_start();
+			@imagepng($img);
+			$data = ob_get_clean();
+
+			if ($data == '') {
+				$error = 1;
+				$errormsg = 'trouble writing file from GD';
+				//DEBUG_IMG_TEMP
+				//debugpng
+				if (defined("DEBUGPNG") && DEBUGPNG) {
+					print 'trouble writing file from GD';
+				}
+			}
+
+			if ($error) {
+				$this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+
+				return;
+			}
+		}  //End isset($this->imagelist[$file]) (png Duplicate removal)
+
+		$this->addPngFromBuf($data, $file, $x, $y, $w, $h, $is_mask, $mask);
+	}
+
+	/**
+	 * @param $file
+	 * @param $x
+	 * @param $y
+	 * @param $w
+	 * @param $h
+	 * @param $byte
+	 */
+	protected function addImagePngAlpha($file, $x, $y, $w, $h, $byte)
+	{
+		// generate images
+		$img = @imagecreatefrompng($file);
+
+		if ($img === false) {
+			return;
+		}
+
+		// FIXME The pixel transformation doesn't work well with 8bit PNGs
+		$eight_bit = ($byte & 4) !== 4;
+
+		$wpx = imagesx($img);
+		$hpx = imagesy($img);
+
+		imagesavealpha($img, false);
+
+		// create temp alpha file
+		$tempfile_alpha = @tempnam($this->tmp, "cpdf_img_");
+		@unlink($tempfile_alpha);
+		$tempfile_alpha = "$tempfile_alpha.png";
+
+		// create temp plain file
+		$tempfile_plain = @tempnam($this->tmp, "cpdf_img_");
+		@unlink($tempfile_plain);
+		$tempfile_plain = "$tempfile_plain.png";
+
+		$imgalpha = imagecreate($wpx, $hpx);
+		imagesavealpha($imgalpha, false);
+
+		// generate gray scale palette (0 -> 255)
+		for ($c = 0; $c < 256; ++$c) {
+			imagecolorallocate($imgalpha, $c, $c, $c);
+		}
+
+		// Use PECL gmagick + Graphics Magic to process transparent PNG images
+		if (extension_loaded("gmagick")) {
+			$gmagick = new \Gmagick($file);
+			$gmagick->setimageformat('png');
+
+			// Get opacity channel (negative of alpha channel)
+			$alpha_channel_neg = clone $gmagick;
+			$alpha_channel_neg->separateimagechannel(\Gmagick::CHANNEL_OPACITY);
+
+			// Negate opacity channel
+			$alpha_channel = new \Gmagick();
+			$alpha_channel->newimage($wpx, $hpx, "#FFFFFF", "png");
+			$alpha_channel->compositeimage($alpha_channel_neg, \Gmagick::COMPOSITE_DIFFERENCE, 0, 0);
+			$alpha_channel->separateimagechannel(\Gmagick::CHANNEL_RED);
+			$alpha_channel->writeimage($tempfile_alpha);
+
+			// Cast to 8bit+palette
+			$imgalpha_ = @imagecreatefrompng($tempfile_alpha);
+			imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
+			imagedestroy($imgalpha_);
+			imagepng($imgalpha, $tempfile_alpha);
+
+			// Make opaque image
+			$color_channels = new \Gmagick();
+			$color_channels->newimage($wpx, $hpx, "#FFFFFF", "png");
+			$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYRED, 0, 0);
+			$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYGREEN, 0, 0);
+			$color_channels->compositeimage($gmagick, \Gmagick::COMPOSITE_COPYBLUE, 0, 0);
+			$color_channels->writeimage($tempfile_plain);
+
+			$imgplain = @imagecreatefrompng($tempfile_plain);
+		}
+		// Use PECL imagick + ImageMagic to process transparent PNG images
+		elseif (extension_loaded("imagick")) {
+			// Native cloning was added to pecl-imagick in svn commit 263814
+			// the first version containing it was 3.0.1RC1
+			static $imagickClonable = null;
+			if ($imagickClonable === null) {
+				$imagickClonable = true;
+				if (defined('Imagick::IMAGICK_EXTVER')) {
+					$imagickVersion = \Imagick::IMAGICK_EXTVER;
+				} else {
+					$imagickVersion = '0';
+				}
+				if (version_compare($imagickVersion, '0.0.1', '>=')) {
+					$imagickClonable = version_compare($imagickVersion, '3.0.1rc1', '>=');
+				}
+			}
+
+			$imagick = new \Imagick($file);
+			$imagick->setFormat('png');
+
+			// Get opacity channel (negative of alpha channel)
+			if ($imagick->getImageAlphaChannel()) {
+				$alpha_channel = $imagickClonable ? clone $imagick : $imagick->clone();
+				$alpha_channel->separateImageChannel(\Imagick::CHANNEL_ALPHA);
+				// Since ImageMagick7 negate invert transparency as default
+				if (\Imagick::getVersion()['versionNumber'] < 1800) {
+					$alpha_channel->negateImage(true);
+				}
+				$alpha_channel->writeImage($tempfile_alpha);
+
+				// Cast to 8bit+palette
+				$imgalpha_ = @imagecreatefrompng($tempfile_alpha);
+				imagecopy($imgalpha, $imgalpha_, 0, 0, 0, 0, $wpx, $hpx);
+				imagedestroy($imgalpha_);
+				imagepng($imgalpha, $tempfile_alpha);
+			} else {
+				$tempfile_alpha = null;
+			}
+
+			// Make opaque image
+			$color_channels = new \Imagick();
+			$color_channels->newImage($wpx, $hpx, "#FFFFFF", "png");
+			$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYRED, 0, 0);
+			$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYGREEN, 0, 0);
+			$color_channels->compositeImage($imagick, \Imagick::COMPOSITE_COPYBLUE, 0, 0);
+			$color_channels->writeImage($tempfile_plain);
+
+			$imgplain = @imagecreatefrompng($tempfile_plain);
+		} else {
+			// allocated colors cache
+			$allocated_colors = [];
+
+			// extract alpha channel
+			for ($xpx = 0; $xpx < $wpx; ++$xpx) {
+				for ($ypx = 0; $ypx < $hpx; ++$ypx) {
+					$color = imagecolorat($img, $xpx, $ypx);
+					$col = imagecolorsforindex($img, $color);
+					$alpha = $col['alpha'];
+
+					if ($eight_bit) {
+						// with gamma correction
+						$gammacorr = 2.2;
+						$pixel = round(pow((((127 - $alpha) * 255 / 127) / 255), $gammacorr) * 255);
+					} else {
+						// without gamma correction
+						$pixel = (127 - $alpha) * 2;
+
+						$key = $col['red'] . $col['green'] . $col['blue'];
+
+						if (!isset($allocated_colors[$key])) {
+							$pixel_img = imagecolorallocate($img, $col['red'], $col['green'], $col['blue']);
+							$allocated_colors[$key] = $pixel_img;
+						} else {
+							$pixel_img = $allocated_colors[$key];
+						}
+
+						imagesetpixel($img, $xpx, $ypx, $pixel_img);
+					}
+
+					imagesetpixel($imgalpha, $xpx, $ypx, $pixel);
+				}
+			}
+
+			// extract image without alpha channel
+			$imgplain = imagecreatetruecolor($wpx, $hpx);
+			imagecopy($imgplain, $img, 0, 0, 0, 0, $wpx, $hpx);
+			imagedestroy($img);
+
+			imagepng($imgalpha, $tempfile_alpha);
+			imagepng($imgplain, $tempfile_plain);
+		}
+
+		$this->imageAlphaList[$file] = [$tempfile_alpha, $tempfile_plain];
+
+		// embed mask image
+		if ($tempfile_alpha) {
+			$this->addImagePng($imgalpha, $tempfile_alpha, $x, $y, $w, $h, true);
+			imagedestroy($imgalpha);
+			$this->imageCache[] = $tempfile_alpha;
+		}
+
+		// embed image, masked with previously embedded mask
+		$this->addImagePng($imgplain, $tempfile_plain, $x, $y, $w, $h, false, ($tempfile_alpha !== null));
+		imagedestroy($imgplain);
+		$this->imageCache[] = $tempfile_plain;
+	}
+
+	/**
+	 * add a PNG image into the document, from a file
+	 * this should work with remote files
+	 *
+	 * @param $file
+	 * @param $x
+	 * @param $y
+	 * @param int $w
+	 * @param int $h
+	 * @throws Exception
+	 */
+	function addPngFromFile($file, $x, $y, $w = 0, $h = 0)
+	{
+		if (!function_exists("imagecreatefrompng")) {
+			throw new \Exception("The PHP GD extension is required, but is not installed.");
+		}
+
+		if (isset($this->imageAlphaList[$file])) {
+			[$alphaFile, $plainFile] = $this->imageAlphaList[$file];
+
+			if ($alphaFile) {
+				$img = null;
+				$this->addImagePng($img, $alphaFile, $x, $y, $w, $h, true);
+			}
+
+			$img = null;
+			$this->addImagePng($img, $plainFile, $x, $y, $w, $h, false, ($plainFile !== null));
+			return;
+		}
+
+		//if already cached, need not to read again
+		if (isset($this->imagelist[$file])) {
+			$img = null;
+		} else {
+			$info = file_get_contents($file, false, null, 24, 5);
+			$meta = unpack("CbitDepth/CcolorType/CcompressionMethod/CfilterMethod/CinterlaceMethod", $info);
+			$bit_depth = $meta["bitDepth"];
+			$color_type = $meta["colorType"];
+
+			// http://www.w3.org/TR/PNG/#11IHDR
+			// 3 => indexed
+			// 4 => greyscale with alpha
+			// 6 => fullcolor with alpha
+			$is_alpha = in_array($color_type, [4, 6]) || ($color_type == 3 && $bit_depth != 4);
+
+			if ($is_alpha) { // exclude grayscale alpha
+				$this->addImagePngAlpha($file, $x, $y, $w, $h, $color_type);
+				return;
+			}
+
+			//png files typically contain an alpha channel.
+			//pdf file format or class.pdf does not support alpha blending.
+			//on alpha blended images, more transparent areas have a color near black.
+			//This appears in the result on not storing the alpha channel.
+			//Correct would be the box background image or its parent when transparent.
+			//But this would make the image dependent on the background.
+			//Therefore create an image with white background and copy in
+			//A more natural background than black is white.
+			//Therefore create an empty image with white background and merge the
+			//image in with alpha blending.
+			$imgtmp = @imagecreatefrompng($file);
+			if (!$imgtmp) {
+				return;
+			}
+			$sx = imagesx($imgtmp);
+			$sy = imagesy($imgtmp);
+			$img = imagecreatetruecolor($sx, $sy);
+			imagealphablending($img, true);
+
+			// @todo is it still needed ??
+			$ti = imagecolortransparent($imgtmp);
+			if ($ti >= 0) {
+				$tc = imagecolorsforindex($imgtmp, $ti);
+				$ti = imagecolorallocate($img, $tc['red'], $tc['green'], $tc['blue']);
+				imagefill($img, 0, 0, $ti);
+				imagecolortransparent($img, $ti);
+			} else {
+				imagefill($img, 1, 1, imagecolorallocate($img, 255, 255, 255));
+			}
+
+			imagecopy($img, $imgtmp, 0, 0, 0, 0, $sx, $sy);
+			imagedestroy($imgtmp);
+		}
+		$this->addImagePng($img, $file, $x, $y, $w, $h);
+
+		if ($img) {
+			imagedestroy($img);
+		}
+	}
+
+	/**
+	 * add a PNG image into the document, from a file
+	 * this should work with remote files
+	 *
+	 * @param $file
+	 * @param $x
+	 * @param $y
+	 * @param int $w
+	 * @param int $h
+	 */
+	function addSvgFromFile($file, $x, $y, $w = 0, $h = 0)
+	{
+		$doc = new \Svg\Document();
+		$doc->loadFile($file);
+		$dimensions = $doc->getDimensions();
+
+		$this->save();
+
+		$this->transform([$w / $dimensions["width"], 0, 0, $h / $dimensions["height"], $x, $y]);
+
+		$surface = new \Svg\Surface\SurfaceCpdf($doc, $this);
+		$doc->render($surface);
+
+		$this->restore();
+	}
+
+	/**
+	 * add a PNG image into the document, from a memory buffer of the file
+	 *
+	 * @param $data
+	 * @param $file
+	 * @param $x
+	 * @param $y
+	 * @param float $w
+	 * @param float $h
+	 * @param bool $is_mask
+	 * @param null $mask
+	 */
+	function addPngFromBuf(&$data, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
+	{
+		if (isset($this->imagelist[$file])) {
+			$data = null;
+			$info['width'] = $this->imagelist[$file]['w'];
+			$info['height'] = $this->imagelist[$file]['h'];
+			$label = $this->imagelist[$file]['label'];
+		} else {
+			if ($data == null) {
+				$this->addMessage('addPngFromBuf error - data not present!');
+
+				return;
+			}
+
+			$error = 0;
+
+			if (!$error) {
+				$header = chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10);
+
+				if (mb_substr($data, 0, 8, '8bit') != $header) {
+					$error = 1;
+
+					if (defined("DEBUGPNG") && DEBUGPNG) {
+						print '[addPngFromFile this file does not have a valid header ' . $file . ']';
+					}
+
+					$errormsg = 'this file does not have a valid header';
+				}
+			}
+
+			if (!$error) {
+				// set pointer
+				$p = 8;
+				$len = mb_strlen($data, '8bit');
+
+				// cycle through the file, identifying chunks
+				$haveHeader = 0;
+				$info = [];
+				$idata = '';
+				$pdata = '';
+
+				while ($p < $len) {
+					$chunkLen = $this->getBytes($data, $p, 4);
+					$chunkType = mb_substr($data, $p + 4, 4, '8bit');
+
+					switch ($chunkType) {
+						case 'IHDR':
+							// this is where all the file information comes from
+							$info['width'] = $this->getBytes($data, $p + 8, 4);
+							$info['height'] = $this->getBytes($data, $p + 12, 4);
+							$info['bitDepth'] = ord($data[$p + 16]);
+							$info['colorType'] = ord($data[$p + 17]);
+							$info['compressionMethod'] = ord($data[$p + 18]);
+							$info['filterMethod'] = ord($data[$p + 19]);
+							$info['interlaceMethod'] = ord($data[$p + 20]);
+
+							//print_r($info);
+							$haveHeader = 1;
+							if ($info['compressionMethod'] != 0) {
+								$error = 1;
+
+								//debugpng
+								if (defined("DEBUGPNG") && DEBUGPNG) {
+									print '[addPngFromFile unsupported compression method ' . $file . ']';
+								}
+
+								$errormsg = 'unsupported compression method';
+							}
+
+							if ($info['filterMethod'] != 0) {
+								$error = 1;
+
+								//debugpng
+								if (defined("DEBUGPNG") && DEBUGPNG) {
+									print '[addPngFromFile unsupported filter method ' . $file . ']';
+								}
+
+								$errormsg = 'unsupported filter method';
+							}
+							break;
+
+						case 'PLTE':
+							$pdata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
+							break;
+
+						case 'IDAT':
+							$idata .= mb_substr($data, $p + 8, $chunkLen, '8bit');
+							break;
+
+						case 'tRNS':
+							//this chunk can only occur once and it must occur after the PLTE chunk and before IDAT chunk
+							//print "tRNS found, color type = ".$info['colorType']."\n";
+							$transparency = [];
+
+							switch ($info['colorType']) {
+								// indexed color, rbg
+								case 3:
+									/* corresponding to entries in the plte chunk
                                      Alpha for palette index 0: 1 byte
                                      Alpha for palette index 1: 1 byte
                                      ...etc...
                                     */
-                                    // there will be one entry for each palette entry. up until the last non-opaque entry.
-                                    // set up an array, stretching over all palette entries which will be o (opaque) or 1 (transparent)
-                                    $transparency['type'] = 'indexed';
-                                    $trans = 0;
-
-                                    for ($i = $chunkLen; $i >= 0; $i--) {
-                                        if (ord($data[$p + 8 + $i]) == 0) {
-                                            $trans = $i;
-                                        }
-                                    }
-
-                                    $transparency['data'] = $trans;
-                                    break;
-
-                                // grayscale
-                                case 0:
-                                    /* corresponding to entries in the plte chunk
+									// there will be one entry for each palette entry. up until the last non-opaque entry.
+									// set up an array, stretching over all palette entries which will be o (opaque) or 1 (transparent)
+									$transparency['type'] = 'indexed';
+									$trans = 0;
+
+									for ($i = $chunkLen; $i >= 0; $i--) {
+										if (ord($data[$p + 8 + $i]) == 0) {
+											$trans = $i;
+										}
+									}
+
+									$transparency['data'] = $trans;
+									break;
+
+								// grayscale
+								case 0:
+									/* corresponding to entries in the plte chunk
                                      Gray: 2 bytes, range 0 .. (2^bitdepth)-1
                                     */
-                                    //            $transparency['grayscale'] = $this->PRVT_getBytes($data,$p+8,2); // g = grayscale
-                                    $transparency['type'] = 'indexed';
-                                    $transparency['data'] = ord($data[$p + 8 + 1]);
-                                    break;
-
-                                // truecolor
-                                case 2:
-                                    /* corresponding to entries in the plte chunk
+									//            $transparency['grayscale'] = $this->PRVT_getBytes($data,$p+8,2); // g = grayscale
+									$transparency['type'] = 'indexed';
+									$transparency['data'] = ord($data[$p + 8 + 1]);
+									break;
+
+								// truecolor
+								case 2:
+									/* corresponding to entries in the plte chunk
                                      Red: 2 bytes, range 0 .. (2^bitdepth)-1
                                      Green: 2 bytes, range 0 .. (2^bitdepth)-1
                                      Blue: 2 bytes, range 0 .. (2^bitdepth)-1
                                     */
-                                    $transparency['r'] = $this->getBytes($data, $p + 8, 2);
-                                    // r from truecolor
-                                    $transparency['g'] = $this->getBytes($data, $p + 10, 2);
-                                    // g from truecolor
-                                    $transparency['b'] = $this->getBytes($data, $p + 12, 2);
-                                    // b from truecolor
-
-                                    $transparency['type'] = 'color-key';
-                                    break;
-
-                                //unsupported transparency type
-                                default:
-                                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                                        print '[addPngFromFile unsupported transparency type ' . $file . ']';
-                                    }
-                                    break;
-                            }
-
-                            // KS End new code
-                            break;
-
-                        default:
-                            break;
-                    }
-
-                    $p += $chunkLen + 12;
-                }
-
-                if (!$haveHeader) {
-                    $error = 1;
-
-                    //debugpng
-                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile information header is missing ' . $file . ']';
-                    }
-
-                    $errormsg = 'information header is missing';
-                }
-
-                if (isset($info['interlaceMethod']) && $info['interlaceMethod']) {
-                    $error = 1;
-
-                    //debugpng
-                    if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile no support for interlaced images in pdf ' . $file . ']';
-                    }
-
-                    $errormsg = 'There appears to be no support for interlaced images in pdf.';
-                }
-            }
-
-            if (!$error && $info['bitDepth'] > 8) {
-                $error = 1;
-
-                //debugpng
-                if (defined("DEBUGPNG") && DEBUGPNG) {
-                    print '[addPngFromFile bit depth of 8 or less is supported ' . $file . ']';
-                }
-
-                $errormsg = 'only bit depth of 8 or less is supported';
-            }
-
-            if (!$error) {
-                switch ($info['colorType']) {
-                    case 3:
-                        $color = 'DeviceRGB';
-                        $ncolor = 1;
-                        break;
-
-                    case 2:
-                        $color = 'DeviceRGB';
-                        $ncolor = 3;
-                        break;
-
-                    case 0:
-                        $color = 'DeviceGray';
-                        $ncolor = 1;
-                        break;
-
-                    default:
-                        $error = 1;
-
-                        //debugpng
-                        if (defined("DEBUGPNG") && DEBUGPNG) {
-                            print '[addPngFromFile alpha channel not supported: ' . $info['colorType'] . ' ' . $file . ']';
-                        }
-
-                        $errormsg = 'transparency alpha channel not supported, transparency only supported for palette images.';
-                }
-            }
-
-            if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
-
-                return;
-            }
-
-            //print_r($info);
-            // so this image is ok... add it in.
-            $this->numImages++;
-            $im = $this->numImages;
-            $label = "I$im";
-            $this->numObj++;
-
-            //  $this->o_image($this->numObj,'new',array('label' => $label,'data' => $idata,'iw' => $w,'ih' => $h,'type' => 'png','ic' => $info['width']));
-            $options = [
-                'label'            => $label,
-                'data'             => $idata,
-                'bitsPerComponent' => $info['bitDepth'],
-                'pdata'            => $pdata,
-                'iw'               => $info['width'],
-                'ih'               => $info['height'],
-                'type'             => 'png',
-                'color'            => $color,
-                'ncolor'           => $ncolor,
-                'masked'           => $mask,
-                'isMask'           => $is_mask
-            ];
-
-            if (isset($transparency)) {
-                $options['transparency'] = $transparency;
-            }
-
-            $this->o_image($this->numObj, 'new', $options);
-            $this->imagelist[$file] = ['label' => $label, 'w' => $info['width'], 'h' => $info['height']];
-        }
-
-        if ($is_mask) {
-            return;
-        }
-
-        if ($w <= 0 && $h <= 0) {
-            $w = $info['width'];
-            $h = $info['height'];
-        }
-
-        if ($w <= 0) {
-            $w = $h / $info['height'] * $info['width'];
-        }
-
-        if ($h <= 0) {
-            $h = $w * $info['height'] / $info['width'];
-        }
-
-        $this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ", $w, $h, $x, $y, $label));
-    }
-
-    /**
-     * add a JPEG image into the document, from a file
-     *
-     * @param $img
-     * @param $x
-     * @param $y
-     * @param int $w
-     * @param int $h
-     */
-    function addJpegFromFile($img, $x, $y, $w = 0, $h = 0)
-    {
-        // attempt to add a jpeg image straight from a file, using no GD commands
-        // note that this function is unable to operate on a remote file.
-
-        if (!file_exists($img)) {
-            return;
-        }
-
-        if ($this->image_iscached($img)) {
-            $data = null;
-            $imageWidth = $this->imagelist[$img]['w'];
-            $imageHeight = $this->imagelist[$img]['h'];
-            $channels = $this->imagelist[$img]['c'];
-        } else {
-            $tmp = getimagesize($img);
-            $imageWidth = $tmp[0];
-            $imageHeight = $tmp[1];
-
-            if (isset($tmp['channels'])) {
-                $channels = $tmp['channels'];
-            } else {
-                $channels = 3;
-            }
-
-            $data = file_get_contents($img);
-        }
-
-        if ($w <= 0 && $h <= 0) {
-            $w = $imageWidth;
-        }
-
-        if ($w == 0) {
-            $w = $h / $imageHeight * $imageWidth;
-        }
-
-        if ($h == 0) {
-            $h = $w * $imageHeight / $imageWidth;
-        }
-
-        $this->addJpegImage_common($data, $img, $imageWidth, $imageHeight, $x, $y, $w, $h, $channels);
-    }
-
-    /**
-     * common code used by the two JPEG adding functions
-     * @param $data
-     * @param $imgname
-     * @param $imageWidth
-     * @param $imageHeight
-     * @param $x
-     * @param $y
-     * @param int $w
-     * @param int $h
-     * @param int $channels
-     */
-    private function addJpegImage_common(
-        &$data,
-        $imgname,
-        $imageWidth,
-        $imageHeight,
-        $x,
-        $y,
-        $w = 0,
-        $h = 0,
-        $channels = 3
-    ) {
-        if ($this->image_iscached($imgname)) {
-            $label = $this->imagelist[$imgname]['label'];
-            //debugpng
-            //if (DEBUGPNG) print '[addJpegImage_common Duplicate '.$imgname.']';
-
-        } else {
-            if ($data == null) {
-                $this->addMessage('addJpegImage_common error - (' . $imgname . ') data not present!');
-
-                return;
-            }
-
-            // note that this function is not to be called externally
-            // it is just the common code between the GD and the file options
-            $this->numImages++;
-            $im = $this->numImages;
-            $label = "I$im";
-            $this->numObj++;
-
-            $this->o_image(
-                $this->numObj,
-                'new',
-                [
-                    'label'    => $label,
-                    'data'     => &$data,
-                    'iw'       => $imageWidth,
-                    'ih'       => $imageHeight,
-                    'channels' => $channels
-                ]
-            );
-
-            $this->imagelist[$imgname] = [
-                'label' => $label,
-                'w'     => $imageWidth,
-                'h'     => $imageHeight,
-                'c'     => $channels
-            ];
-        }
-
-        $this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ ", $w, $h, $x, $y, $label));
-    }
-
-    /**
-     * specify where the document should open when it first starts
-     *
-     * @param $style
-     * @param int $a
-     * @param int $b
-     * @param int $c
-     */
-    function openHere($style, $a = 0, $b = 0, $c = 0)
-    {
-        // this function will open the document at a specified page, in a specified style
-        // the values for style, and the required parameters are:
-        // 'XYZ'  left, top, zoom
-        // 'Fit'
-        // 'FitH' top
-        // 'FitV' left
-        // 'FitR' left,bottom,right
-        // 'FitB'
-        // 'FitBH' top
-        // 'FitBV' left
-        $this->numObj++;
-        $this->o_destination(
-            $this->numObj,
-            'new',
-            ['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
-        );
-        $id = $this->catalogId;
-        $this->o_catalog($id, 'openHere', $this->numObj);
-    }
-
-    /**
-     * Add JavaScript code to the PDF document
-     *
-     * @param string $code
-     */
-    function addJavascript($code)
-    {
-        $this->javascript .= $code;
-    }
-
-    /**
-     * create a labelled destination within the document
-     *
-     * @param $label
-     * @param $style
-     * @param int $a
-     * @param int $b
-     * @param int $c
-     */
-    function addDestination($label, $style, $a = 0, $b = 0, $c = 0)
-    {
-        // associates the given label with the destination, it is done this way so that a destination can be specified after
-        // it has been linked to
-        // styles are the same as the 'openHere' function
-        $this->numObj++;
-        $this->o_destination(
-            $this->numObj,
-            'new',
-            ['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
-        );
-        $id = $this->numObj;
-
-        // store the label->idf relationship, note that this means that labels can be used only once
-        $this->destinations["$label"] = $id;
-    }
-
-    /**
-     * define font families, this is used to initialize the font families for the default fonts
-     * and for the user to add new ones for their fonts. The default bahavious can be overridden should
-     * that be desired.
-     *
-     * @param $family
-     * @param string $options
-     */
-    function setFontFamily($family, $options = '')
-    {
-        if (!is_array($options)) {
-            if ($family === 'init') {
-                // set the known family groups
-                // these font families will be used to enable bold and italic markers to be included
-                // within text streams. html forms will be used... <b></b> <i></i>
-                $this->fontFamilies['Helvetica.afm'] =
-                    [
-                        'b'  => 'Helvetica-Bold.afm',
-                        'i'  => 'Helvetica-Oblique.afm',
-                        'bi' => 'Helvetica-BoldOblique.afm',
-                        'ib' => 'Helvetica-BoldOblique.afm'
-                    ];
-
-                $this->fontFamilies['Courier.afm'] =
-                    [
-                        'b'  => 'Courier-Bold.afm',
-                        'i'  => 'Courier-Oblique.afm',
-                        'bi' => 'Courier-BoldOblique.afm',
-                        'ib' => 'Courier-BoldOblique.afm'
-                    ];
-
-                $this->fontFamilies['Times-Roman.afm'] =
-                    [
-                        'b'  => 'Times-Bold.afm',
-                        'i'  => 'Times-Italic.afm',
-                        'bi' => 'Times-BoldItalic.afm',
-                        'ib' => 'Times-BoldItalic.afm'
-                    ];
-            }
-        } else {
-
-            // the user is trying to set a font family
-            // note that this can also be used to set the base ones to something else
-            if (mb_strlen($family)) {
-                $this->fontFamilies[$family] = $options;
-            }
-        }
-    }
-
-    /**
-     * used to add messages for use in debugging
-     *
-     * @param $message
-     */
-    function addMessage($message)
-    {
-        $this->messages .= $message . "\n";
-    }
-
-    /**
-     * a few functions which should allow the document to be treated transactionally.
-     *
-     * @param $action
-     */
-    function transaction($action)
-    {
-        switch ($action) {
-            case 'start':
-                // store all the data away into the checkpoint variable
-                $data = get_object_vars($this);
-                $this->checkpoint = $data;
-                unset($data);
-                break;
-
-            case 'commit':
-                if (is_array($this->checkpoint) && isset($this->checkpoint['checkpoint'])) {
-                    $tmp = $this->checkpoint['checkpoint'];
-                    $this->checkpoint = $tmp;
-                    unset($tmp);
-                } else {
-                    $this->checkpoint = '';
-                }
-                break;
-
-            case 'rewind':
-                // do not destroy the current checkpoint, but move us back to the state then, so that we can try again
-                if (is_array($this->checkpoint)) {
-                    // can only abort if were inside a checkpoint
-                    $tmp = $this->checkpoint;
-
-                    foreach ($tmp as $k => $v) {
-                        if ($k !== 'checkpoint') {
-                            $this->$k = $v;
-                        }
-                    }
-                    unset($tmp);
-                }
-                break;
-
-            case 'abort':
-                if (is_array($this->checkpoint)) {
-                    // can only abort if were inside a checkpoint
-                    $tmp = $this->checkpoint;
-                    foreach ($tmp as $k => $v) {
-                        $this->$k = $v;
-                    }
-                    unset($tmp);
-                }
-                break;
-        }
-    }
+									$transparency['r'] = $this->getBytes($data, $p + 8, 2);
+									// r from truecolor
+									$transparency['g'] = $this->getBytes($data, $p + 10, 2);
+									// g from truecolor
+									$transparency['b'] = $this->getBytes($data, $p + 12, 2);
+									// b from truecolor
+
+									$transparency['type'] = 'color-key';
+									break;
+
+								//unsupported transparency type
+								default:
+									if (defined("DEBUGPNG") && DEBUGPNG) {
+										print '[addPngFromFile unsupported transparency type ' . $file . ']';
+									}
+									break;
+							}
+
+							// KS End new code
+							break;
+
+						default:
+							break;
+					}
+
+					$p += $chunkLen + 12;
+				}
+
+				if (!$haveHeader) {
+					$error = 1;
+
+					//debugpng
+					if (defined("DEBUGPNG") && DEBUGPNG) {
+						print '[addPngFromFile information header is missing ' . $file . ']';
+					}
+
+					$errormsg = 'information header is missing';
+				}
+
+				if (isset($info['interlaceMethod']) && $info['interlaceMethod']) {
+					$error = 1;
+
+					//debugpng
+					if (defined("DEBUGPNG") && DEBUGPNG) {
+						print '[addPngFromFile no support for interlaced images in pdf ' . $file . ']';
+					}
+
+					$errormsg = 'There appears to be no support for interlaced images in pdf.';
+				}
+			}
+
+			if (!$error && $info['bitDepth'] > 8) {
+				$error = 1;
+
+				//debugpng
+				if (defined("DEBUGPNG") && DEBUGPNG) {
+					print '[addPngFromFile bit depth of 8 or less is supported ' . $file . ']';
+				}
+
+				$errormsg = 'only bit depth of 8 or less is supported';
+			}
+
+			if (!$error) {
+				switch ($info['colorType']) {
+					case 3:
+						$color = 'DeviceRGB';
+						$ncolor = 1;
+						break;
+
+					case 2:
+						$color = 'DeviceRGB';
+						$ncolor = 3;
+						break;
+
+					case 0:
+						$color = 'DeviceGray';
+						$ncolor = 1;
+						break;
+
+					default:
+						$error = 1;
+
+						//debugpng
+						if (defined("DEBUGPNG") && DEBUGPNG) {
+							print '[addPngFromFile alpha channel not supported: ' . $info['colorType'] . ' ' . $file . ']';
+						}
+
+						$errormsg = 'transparency alpha channel not supported, transparency only supported for palette images.';
+				}
+			}
+
+			if ($error) {
+				$this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+
+				return;
+			}
+
+			//print_r($info);
+			// so this image is ok... add it in.
+			$this->numImages++;
+			$im = $this->numImages;
+			$label = "I$im";
+			$this->numObj++;
+
+			//  $this->o_image($this->numObj,'new',array('label' => $label,'data' => $idata,'iw' => $w,'ih' => $h,'type' => 'png','ic' => $info['width']));
+			$options = [
+				'label'            => $label,
+				'data'             => $idata,
+				'bitsPerComponent' => $info['bitDepth'],
+				'pdata'            => $pdata,
+				'iw'               => $info['width'],
+				'ih'               => $info['height'],
+				'type'             => 'png',
+				'color'            => $color,
+				'ncolor'           => $ncolor,
+				'masked'           => $mask,
+				'isMask'           => $is_mask
+			];
+
+			if (isset($transparency)) {
+				$options['transparency'] = $transparency;
+			}
+
+			$this->o_image($this->numObj, 'new', $options);
+			$this->imagelist[$file] = ['label' => $label, 'w' => $info['width'], 'h' => $info['height']];
+		}
+
+		if ($is_mask) {
+			return;
+		}
+
+		if ($w <= 0 && $h <= 0) {
+			$w = $info['width'];
+			$h = $info['height'];
+		}
+
+		if ($w <= 0) {
+			$w = $h / $info['height'] * $info['width'];
+		}
+
+		if ($h <= 0) {
+			$h = $w * $info['height'] / $info['width'];
+		}
+
+		$this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ", $w, $h, $x, $y, $label));
+	}
+
+	/**
+	 * add a JPEG image into the document, from a file
+	 *
+	 * @param $img
+	 * @param $x
+	 * @param $y
+	 * @param int $w
+	 * @param int $h
+	 */
+	function addJpegFromFile($img, $x, $y, $w = 0, $h = 0)
+	{
+		// attempt to add a jpeg image straight from a file, using no GD commands
+		// note that this function is unable to operate on a remote file.
+
+		if (!file_exists($img)) {
+			return;
+		}
+
+		if ($this->image_iscached($img)) {
+			$data = null;
+			$imageWidth = $this->imagelist[$img]['w'];
+			$imageHeight = $this->imagelist[$img]['h'];
+			$channels = $this->imagelist[$img]['c'];
+		} else {
+			$tmp = getimagesize($img);
+			$imageWidth = $tmp[0];
+			$imageHeight = $tmp[1];
+
+			if (isset($tmp['channels'])) {
+				$channels = $tmp['channels'];
+			} else {
+				$channels = 3;
+			}
+
+			$data = file_get_contents($img);
+		}
+
+		if ($w <= 0 && $h <= 0) {
+			$w = $imageWidth;
+		}
+
+		if ($w == 0) {
+			$w = $h / $imageHeight * $imageWidth;
+		}
+
+		if ($h == 0) {
+			$h = $w * $imageHeight / $imageWidth;
+		}
+
+		$this->addJpegImage_common($data, $img, $imageWidth, $imageHeight, $x, $y, $w, $h, $channels);
+	}
+
+	/**
+	 * common code used by the two JPEG adding functions
+	 * @param $data
+	 * @param $imgname
+	 * @param $imageWidth
+	 * @param $imageHeight
+	 * @param $x
+	 * @param $y
+	 * @param int $w
+	 * @param int $h
+	 * @param int $channels
+	 */
+	private function addJpegImage_common(
+		&$data,
+		$imgname,
+		$imageWidth,
+		$imageHeight,
+		$x,
+		$y,
+		$w = 0,
+		$h = 0,
+		$channels = 3
+	) {
+		if ($this->image_iscached($imgname)) {
+			$label = $this->imagelist[$imgname]['label'];
+			//debugpng
+			//if (DEBUGPNG) print '[addJpegImage_common Duplicate '.$imgname.']';
+
+		} else {
+			if ($data == null) {
+				$this->addMessage('addJpegImage_common error - (' . $imgname . ') data not present!');
+
+				return;
+			}
+
+			// note that this function is not to be called externally
+			// it is just the common code between the GD and the file options
+			$this->numImages++;
+			$im = $this->numImages;
+			$label = "I$im";
+			$this->numObj++;
+
+			$this->o_image(
+				$this->numObj,
+				'new',
+				[
+					'label'    => $label,
+					'data'     => &$data,
+					'iw'       => $imageWidth,
+					'ih'       => $imageHeight,
+					'channels' => $channels
+				]
+			);
+
+			$this->imagelist[$imgname] = [
+				'label' => $label,
+				'w'     => $imageWidth,
+				'h'     => $imageHeight,
+				'c'     => $channels
+			];
+		}
+
+		$this->addContent(sprintf("\nq\n%.3F 0 0 %.3F %.3F %.3F cm /%s Do\nQ ", $w, $h, $x, $y, $label));
+	}
+
+	/**
+	 * specify where the document should open when it first starts
+	 *
+	 * @param $style
+	 * @param int $a
+	 * @param int $b
+	 * @param int $c
+	 */
+	function openHere($style, $a = 0, $b = 0, $c = 0)
+	{
+		// this function will open the document at a specified page, in a specified style
+		// the values for style, and the required parameters are:
+		// 'XYZ'  left, top, zoom
+		// 'Fit'
+		// 'FitH' top
+		// 'FitV' left
+		// 'FitR' left,bottom,right
+		// 'FitB'
+		// 'FitBH' top
+		// 'FitBV' left
+		$this->numObj++;
+		$this->o_destination(
+			$this->numObj,
+			'new',
+			['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
+		);
+		$id = $this->catalogId;
+		$this->o_catalog($id, 'openHere', $this->numObj);
+	}
+
+	/**
+	 * Add JavaScript code to the PDF document
+	 *
+	 * @param string $code
+	 */
+	function addJavascript($code)
+	{
+		$this->javascript .= $code;
+	}
+
+	/**
+	 * create a labelled destination within the document
+	 *
+	 * @param $label
+	 * @param $style
+	 * @param int $a
+	 * @param int $b
+	 * @param int $c
+	 */
+	function addDestination($label, $style, $a = 0, $b = 0, $c = 0)
+	{
+		// associates the given label with the destination, it is done this way so that a destination can be specified after
+		// it has been linked to
+		// styles are the same as the 'openHere' function
+		$this->numObj++;
+		$this->o_destination(
+			$this->numObj,
+			'new',
+			['page' => $this->currentPage, 'type' => $style, 'p1' => $a, 'p2' => $b, 'p3' => $c]
+		);
+		$id = $this->numObj;
+
+		// store the label->idf relationship, note that this means that labels can be used only once
+		$this->destinations["$label"] = $id;
+	}
+
+	/**
+	 * define font families, this is used to initialize the font families for the default fonts
+	 * and for the user to add new ones for their fonts. The default bahavious can be overridden should
+	 * that be desired.
+	 *
+	 * @param $family
+	 * @param string $options
+	 */
+	function setFontFamily($family, $options = '')
+	{
+		if (!is_array($options)) {
+			if ($family === 'init') {
+				// set the known family groups
+				// these font families will be used to enable bold and italic markers to be included
+				// within text streams. html forms will be used... <b></b> <i></i>
+				$this->fontFamilies['Helvetica.afm'] =
+					[
+						'b'  => 'Helvetica-Bold.afm',
+						'i'  => 'Helvetica-Oblique.afm',
+						'bi' => 'Helvetica-BoldOblique.afm',
+						'ib' => 'Helvetica-BoldOblique.afm'
+					];
+
+				$this->fontFamilies['Courier.afm'] =
+					[
+						'b'  => 'Courier-Bold.afm',
+						'i'  => 'Courier-Oblique.afm',
+						'bi' => 'Courier-BoldOblique.afm',
+						'ib' => 'Courier-BoldOblique.afm'
+					];
+
+				$this->fontFamilies['Times-Roman.afm'] =
+					[
+						'b'  => 'Times-Bold.afm',
+						'i'  => 'Times-Italic.afm',
+						'bi' => 'Times-BoldItalic.afm',
+						'ib' => 'Times-BoldItalic.afm'
+					];
+			}
+		} else {
+
+			// the user is trying to set a font family
+			// note that this can also be used to set the base ones to something else
+			if (mb_strlen($family)) {
+				$this->fontFamilies[$family] = $options;
+			}
+		}
+	}
+
+	/**
+	 * used to add messages for use in debugging
+	 *
+	 * @param $message
+	 */
+	function addMessage($message)
+	{
+		$this->messages .= $message . "\n";
+	}
+
+	/**
+	 * a few functions which should allow the document to be treated transactionally.
+	 *
+	 * @param $action
+	 */
+	function transaction($action)
+	{
+		switch ($action) {
+			case 'start':
+				// store all the data away into the checkpoint variable
+				$data = get_object_vars($this);
+				$this->checkpoint = $data;
+				unset($data);
+				break;
+
+			case 'commit':
+				if (is_array($this->checkpoint) && isset($this->checkpoint['checkpoint'])) {
+					$tmp = $this->checkpoint['checkpoint'];
+					$this->checkpoint = $tmp;
+					unset($tmp);
+				} else {
+					$this->checkpoint = '';
+				}
+				break;
+
+			case 'rewind':
+				// do not destroy the current checkpoint, but move us back to the state then, so that we can try again
+				if (is_array($this->checkpoint)) {
+					// can only abort if were inside a checkpoint
+					$tmp = $this->checkpoint;
+
+					foreach ($tmp as $k => $v) {
+						if ($k !== 'checkpoint') {
+							$this->$k = $v;
+						}
+					}
+					unset($tmp);
+				}
+				break;
+
+			case 'abort':
+				if (is_array($this->checkpoint)) {
+					// can only abort if were inside a checkpoint
+					$tmp = $this->checkpoint;
+					foreach ($tmp as $k => $v) {
+						$this->$k = $v;
+					}
+					unset($tmp);
+				}
+				break;
+		}
+	}
 }

Spacing +232 added lines, -232 removed lines

@@ -18,24 +18,24 @@ 
     const PDF_VERSION = '1.7';
 
     const ACROFORM_SIG_SIGNATURESEXISTS = 0x0001;
-    const ACROFORM_SIG_APPENDONLY =       0x0002;
+    const ACROFORM_SIG_APPENDONLY = 0x0002;
 
-    const ACROFORM_FIELD_BUTTON =   'Btn';
-    const ACROFORM_FIELD_TEXT =     'Tx';
-    const ACROFORM_FIELD_CHOICE =   'Ch';
-    const ACROFORM_FIELD_SIG =      'Sig';
+    const ACROFORM_FIELD_BUTTON = 'Btn';
+    const ACROFORM_FIELD_TEXT = 'Tx';
+    const ACROFORM_FIELD_CHOICE = 'Ch';
+    const ACROFORM_FIELD_SIG = 'Sig';
 
-    const ACROFORM_FIELD_READONLY =               0x0001;
-    const ACROFORM_FIELD_REQUIRED =               0x0002;
+    const ACROFORM_FIELD_READONLY = 0x0001;
+    const ACROFORM_FIELD_REQUIRED = 0x0002;
 
-    const ACROFORM_FIELD_TEXT_MULTILINE =         0x1000;
-    const ACROFORM_FIELD_TEXT_PASSWORD =          0x2000;
-    const ACROFORM_FIELD_TEXT_RICHTEXT =         0x10000;
+    const ACROFORM_FIELD_TEXT_MULTILINE = 0x1000;
+    const ACROFORM_FIELD_TEXT_PASSWORD = 0x2000;
+    const ACROFORM_FIELD_TEXT_RICHTEXT = 0x10000;
 
-    const ACROFORM_FIELD_CHOICE_COMBO =          0x20000;
-    const ACROFORM_FIELD_CHOICE_EDIT =           0x40000;
-    const ACROFORM_FIELD_CHOICE_SORT =           0x80000;
-    const ACROFORM_FIELD_CHOICE_MULTISELECT =   0x200000;
+    const ACROFORM_FIELD_CHOICE_COMBO = 0x20000;
+    const ACROFORM_FIELD_CHOICE_EDIT = 0x40000;
+    const ACROFORM_FIELD_CHOICE_SORT = 0x80000;
+    const ACROFORM_FIELD_CHOICE_MULTISELECT = 0x200000;
 
     const XOBJECT_SUBTYPE_FORM = 'Form';
 
@@ -454,16 +454,16 @@ 
                     case 'XYZ':
                     /** @noinspection PhpMissingBreakStatementInspection */
                     case 'FitR':
-                        $tmp = ' ' . $options['p3'] . $tmp;
+                        $tmp = ' '.$options['p3'].$tmp;
                     case 'FitH':
                     case 'FitV':
                     case 'FitBH':
                     /** @noinspection PhpMissingBreakStatementInspection */
                     case 'FitBV':
-                        $tmp = ' ' . $options['p1'] . ' ' . $options['p2'] . $tmp;
+                        $tmp = ' '.$options['p1'].' '.$options['p2'].$tmp;
                     case 'Fit':
                     case 'FitB':
-                        $tmp = $options['type'] . $tmp;
+                        $tmp = $options['type'].$tmp;
                         $this->objects[$id]['info']['string'] = $tmp;
                         $this->objects[$id]['info']['page'] = $options['page'];
                 }
@@ -473,7 +473,7 @@ 
                 $o = &$this->objects[$id];
 
                 $tmp = $o['info'];
-                $res = "\n$id 0 obj\n" . '[' . $tmp['page'] . ' 0 R /' . $tmp['string'] . "]\nendobj";
+                $res = "\n$id 0 obj\n".'['.$tmp['page'].' 0 R /'.$tmp['string']."]\nendobj";
 
                 return $res;
         }
@@ -509,12 +509,12 @@ 
                         case 'CenterWindow':
                         case 'DisplayDocTitle':
                         case 'PickTrayByPDFSize':
-                            $o['info'][$k] = (bool)$v;
+                            $o['info'][$k] = (bool) $v;
                             break;
 
                         // Integer keys
                         case 'NumCopies':
-                            $o['info'][$k] = (int)$v;
+                            $o['info'][$k] = (int) $v;
                             break;
 
                         // Name keys
@@ -522,33 +522,33 @@ 
                         case 'ViewClip':
                         case 'PrintClip':
                         case 'PrintArea':
-                            $o['info'][$k] = (string)$v;
+                            $o['info'][$k] = (string) $v;
                             break;
 
                         // Named with limited valid values
                         case 'NonFullScreenPageMode':
-                            if (!in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
+                            if ( ! in_array($v, ['UseNone', 'UseOutlines', 'UseThumbs', 'UseOC'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
                             break;
 
                         case 'Direction':
-                            if (!in_array($v, ['L2R', 'R2L'])) {
+                            if ( ! in_array($v, ['L2R', 'R2L'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
                             break;
 
                         case 'PrintScaling':
-                            if (!in_array($v, ['None', 'AppDefault'])) {
+                            if ( ! in_array($v, ['None', 'AppDefault'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
                             break;
 
                         case 'Duplex':
-                            if (!in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
+                            if ( ! in_array($v, ['None', 'Simplex', 'DuplexFlipShortEdge', 'DuplexFlipLongEdge'])) {
                                 break;
                             }
                             $o['info'][$k] = $v;
@@ -558,7 +558,7 @@ 
                         case 'PrintPageRange':
                             // Cast to integer array
                             foreach ($v as $vK => $vV) {
-                                $v[$vK] = (int)$vV;
+                                $v[$vK] = (int) $vV;
                             }
                             $o['info'][$k] = array_values($v);
                             break;
@@ -572,13 +572,13 @@ 
 
                 foreach ($o['info'] as $k => $v) {
                     if (is_string($v)) {
-                        $v = '/' . $v;
+                        $v = '/'.$v;
                     } elseif (is_int($v)) {
                         $v = (string) $v;
                     } elseif (is_bool($v)) {
                         $v = ($v ? 'true' : 'false');
                     } elseif (is_array($v)) {
-                        $v = '[' . implode(' ', $v) . ']';
+                        $v = '['.implode(' ', $v).']';
                     }
                     $res .= "\n/$k $v";
                 }
@@ -619,7 +619,7 @@ 
                 break;
 
             case 'viewerPreferences':
-                if (!isset($o['info']['viewerPreferences'])) {
+                if ( ! isset($o['info']['viewerPreferences'])) {
                     $this->numObj++;
                     $this->o_viewerPreferences($this->numObj, 'new');
                     $o['info']['viewerPreferences'] = $this->numObj;
@@ -690,7 +690,7 @@ 
                 break;
 
             case 'page':
-                if (!is_array($options)) {
+                if ( ! is_array($options)) {
                     // then it will just be the id of the new page
                     $o['info']['pages'][] = $options;
                 } else {
@@ -757,7 +757,7 @@ 
                         $res .= "$v 0 R\n";
                     }
 
-                    $res .= "]\n/Count " . count($this->objects[$id]['info']['pages']);
+                    $res .= "]\n/Count ".count($this->objects[$id]['info']['pages']);
 
                     if ((isset($o['info']['fonts']) && count($o['info']['fonts'])) ||
                         isset($o['info']['procset']) ||
@@ -766,13 +766,13 @@ 
                         $res .= "\n/Resources <<";
 
                         if (isset($o['info']['procset'])) {
-                            $res .= "\n/ProcSet " . $o['info']['procset'] . " 0 R";
+                            $res .= "\n/ProcSet ".$o['info']['procset']." 0 R";
                         }
 
                         if (isset($o['info']['fonts']) && count($o['info']['fonts'])) {
                             $res .= "\n/Font << ";
                             foreach ($o['info']['fonts'] as $finfo) {
-                                $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+                                $res .= "\n/F".$finfo['fontNum']." ".$finfo['objNum']." 0 R";
                             }
                             $res .= "\n>>";
                         }
@@ -780,7 +780,7 @@ 
                         if (isset($o['info']['xObjects']) && count($o['info']['xObjects'])) {
                             $res .= "\n/XObject << ";
                             foreach ($o['info']['xObjects'] as $finfo) {
-                                $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+                                $res .= "\n/".$finfo['label']." ".$finfo['objNum']." 0 R";
                             }
                             $res .= "\n>>";
                         }
@@ -788,7 +788,7 @@ 
                         if (isset($o['info']['extGStates']) && count($o['info']['extGStates'])) {
                             $res .= "\n/ExtGState << ";
                             foreach ($o['info']['extGStates'] as $gstate) {
-                                $res .= "\n/GS" . $gstate['stateNum'] . " " . $gstate['objNum'] . " 0 R";
+                                $res .= "\n/GS".$gstate['stateNum']." ".$gstate['objNum']." 0 R";
                             }
                             $res .= "\n>>";
                         }
@@ -796,13 +796,13 @@ 
                         $res .= "\n>>";
                         if (isset($o['info']['mediaBox'])) {
                             $tmp = $o['info']['mediaBox'];
-                            $res .= "\n/MediaBox [" . sprintf(
+                            $res .= "\n/MediaBox [".sprintf(
                                     '%.3F %.3F %.3F %.3F',
                                     $tmp[0],
                                     $tmp[1],
                                     $tmp[2],
                                     $tmp[3]
-                                ) . ']';
+                                ).']';
                         }
                     }
 
@@ -848,7 +848,7 @@ 
                         $res .= "$v 0 R ";
                     }
 
-                    $res .= "] /Count " . count($o['info']['outlines']) . " >>\nendobj";
+                    $res .= "] /Count ".count($o['info']['outlines'])." >>\nendobj";
                 } else {
                     $res = "\n$id 0 obj\n<< /Type /Outlines /Count 0 >>\nendobj";
                 }
@@ -952,7 +952,7 @@ 
                             case 'Widths':
                             case 'FontDescriptor':
                             case 'SubType':
-                                $this->addMessage('o_font ' . $k . " : " . $v);
+                                $this->addMessage('o_font '.$k." : ".$v);
                                 $o['info'][$k] = $v;
                                 break;
                         }
@@ -976,44 +976,44 @@ 
                     // transform FPDF to TCPDF (http://tcpdf.sourceforge.net/)
 
                     $res = "\n$id 0 obj\n<</Type /Font\n/Subtype /Type0\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
+                    $res .= "/BaseFont /".$o['info']['name']."\n";
 
                     // The horizontal identity mapping for 2-byte CIDs; may be used
                     // with CIDFonts using any Registry, Ordering, and Supplement values.
                     $res .= "/Encoding /Identity-H\n";
-                    $res .= "/DescendantFonts [" . $o['info']['cidFont'] . " 0 R]\n";
-                    $res .= "/ToUnicode " . $o['info']['toUnicode'] . " 0 R\n";
+                    $res .= "/DescendantFonts [".$o['info']['cidFont']." 0 R]\n";
+                    $res .= "/ToUnicode ".$o['info']['toUnicode']." 0 R\n";
                     $res .= ">>\n";
                     $res .= "endobj";
                 } else {
-                    $res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /" . $o['info']['SubType'] . "\n";
-                    $res .= "/Name /F" . $o['info']['fontNum'] . "\n";
-                    $res .= "/BaseFont /" . $o['info']['name'] . "\n";
+                    $res = "\n$id 0 obj\n<< /Type /Font\n/Subtype /".$o['info']['SubType']."\n";
+                    $res .= "/Name /F".$o['info']['fontNum']."\n";
+                    $res .= "/BaseFont /".$o['info']['name']."\n";
 
                     if (isset($o['info']['encodingDictionary'])) {
                         // then place a reference to the dictionary
-                        $res .= "/Encoding " . $o['info']['encodingDictionary'] . " 0 R\n";
+                        $res .= "/Encoding ".$o['info']['encodingDictionary']." 0 R\n";
                     } else {
                         if (isset($o['info']['encoding'])) {
                             // use the specified encoding
-                            $res .= "/Encoding /" . $o['info']['encoding'] . "\n";
+                            $res .= "/Encoding /".$o['info']['encoding']."\n";
                         }
                     }
 
                     if (isset($o['info']['FirstChar'])) {
-                        $res .= "/FirstChar " . $o['info']['FirstChar'] . "\n";
+                        $res .= "/FirstChar ".$o['info']['FirstChar']."\n";
                     }
 
                     if (isset($o['info']['LastChar'])) {
-                        $res .= "/LastChar " . $o['info']['LastChar'] . "\n";
+                        $res .= "/LastChar ".$o['info']['LastChar']."\n";
                     }
 
                     if (isset($o['info']['Widths'])) {
-                        $res .= "/Widths " . $o['info']['Widths'] . " 0 R\n";
+                        $res .= "/Widths ".$o['info']['Widths']." 0 R\n";
                     }
 
                     if (isset($o['info']['FontDescriptor'])) {
-                        $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+                        $res .= "/FontDescriptor ".$o['info']['FontDescriptor']." 0 R\n";
                     }
 
                     $res .= ">>\n";
@@ -1039,7 +1039,7 @@ 
             }
         }
 
-        return 'SUB' . str_pad($base_26, 3, 'A', STR_PAD_LEFT);
+        return 'SUB'.str_pad($base_26, 3, 'A', STR_PAD_LEFT);
     }
 
     /**
@@ -1051,7 +1051,7 @@ 
     private function processFont(int $fontObjId, array $object_info)
     {
         $fontFileName = $object_info['fontFileName'];
-        if (!isset($this->fonts[$fontFileName])) {
+        if ( ! isset($this->fonts[$fontFileName])) {
             return false;
         }
 
@@ -1063,9 +1063,9 @@ 
         $isTtfFont = $fileSuffixLower === 'ttf';
         $isPfbFont = $fileSuffixLower === 'pfb';
 
-        $this->addMessage('selectFont: checking for - ' . $fbfile);
+        $this->addMessage('selectFont: checking for - '.$fbfile);
 
-        if (!$fileSuffix) {
+        if ( ! $fileSuffix) {
             $this->addMessage(
                 'selectFont: pfb or ttf file not found, ok if this is one of the 14 standard fonts'
             );
@@ -1084,7 +1084,7 @@ 
 
             foreach ($font['C'] as $num => $d) {
                 if (intval($num) > 0 || $num == '0') {
-                    if (!$font['isUnicode']) {
+                    if ( ! $font['isUnicode']) {
                         // With Unicode, widths array isn't used
                         if ($lastChar > 0 && $num > $lastChar + 1) {
                             for ($i = $lastChar + 1; $i < $num; $i++) {
@@ -1111,7 +1111,7 @@ 
             if (isset($object['differences'])) {
                 foreach ($object['differences'] as $charNum => $charName) {
                     if ($charNum > $lastChar) {
-                        if (!$object['isUnicode']) {
+                        if ( ! $object['isUnicode']) {
                             // With Unicode, widths array isn't used
                             for ($i = $lastChar + 1; $i <= $charNum; $i++) {
                                 $widths[] = 0;
@@ -1134,17 +1134,17 @@ 
                 $font['CIDWidths'] = $cid_widths;
             }
 
-            $this->addMessage('selectFont: FirstChar = ' . $firstChar);
-            $this->addMessage('selectFont: LastChar = ' . $lastChar);
+            $this->addMessage('selectFont: FirstChar = '.$firstChar);
+            $this->addMessage('selectFont: LastChar = '.$lastChar);
 
             $widthid = -1;
 
-            if (!$font['isUnicode']) {
+            if ( ! $font['isUnicode']) {
                 // With Unicode, widths array isn't used
 
                 $this->numObj++;
                 $this->o_contents($this->numObj, 'new', 'raw');
-                $this->objects[$this->numObj]['c'] .= '[' . implode(' ', $widths) . ']';
+                $this->objects[$this->numObj]['c'] .= '['.implode(' ', $widths).']';
                 $widthid = $this->numObj;
             }
 
@@ -1165,10 +1165,10 @@ 
             // load the pfb file, and put that into an object too.
             // note that pdf supports only binary format type 1 font files, though there is a
             // simple utility to convert them from pfa to pfb.
-            if (!$font['isSubsetting']) {
+            if ( ! $font['isSubsetting']) {
                 $data = file_get_contents($fbfile);
             } else {
-                $adobeFontName = $this->getFontSubsettingTag($font) . '+' . $adobeFontName;
+                $adobeFontName = $this->getFontSubsettingTag($font).'+'.$adobeFontName;
                 $this->stringSubsets[$fontFileName][] = 32; // Force space if not in yet
 
                 $subset = $this->stringSubsets[$fontFileName];
@@ -1371,8 +1371,8 @@ 
 EOT;
 
                 $res = "\n$id 0 obj\n";
-                $res .= "<</Length " . mb_strlen($stream, '8bit') . " >>\n";
-                $res .= "stream\n" . $stream . "\nendstream" . "\nendobj";
+                $res .= "<</Length ".mb_strlen($stream, '8bit')." >>\n";
+                $res .= "stream\n".$stream."\nendstream"."\nendobj";
 
                 return $res;
         }
@@ -1467,12 +1467,12 @@ 
 
             case 'out':
                 $res = "\n$id 0 obj\n<< /Type /Encoding\n";
-                if (!isset($o['info']['encoding'])) {
+                if ( ! isset($o['info']['encoding'])) {
                     $o['info']['encoding'] = 'WinAnsiEncoding';
                 }
 
                 if ($o['info']['encoding'] !== 'none') {
-                    $res .= "/BaseEncoding /" . $o['info']['encoding'] . "\n";
+                    $res .= "/BaseEncoding /".$o['info']['encoding']."\n";
                 }
 
                 $res .= "/Differences \n[";
@@ -1553,8 +1553,8 @@ 
                 $res = "\n$id 0 obj\n";
                 $res .= "<</Type /Font\n";
                 $res .= "/Subtype /CIDFontType2\n";
-                $res .= "/BaseFont /" . $o['info']['name'] . "\n";
-                $res .= "/CIDSystemInfo " . $o['info']['cidSystemInfo'] . " 0 R\n";
+                $res .= "/BaseFont /".$o['info']['name']."\n";
+                $res .= "/CIDSystemInfo ".$o['info']['cidSystemInfo']." 0 R\n";
                 //      if (isset($o['info']['FirstChar'])) {
                 //        $res.= "/FirstChar ".$o['info']['FirstChar']."\n";
                 //      }
@@ -1563,11 +1563,11 @@ 
                 //        $res.= "/LastChar ".$o['info']['LastChar']."\n";
                 //      }
                 if (isset($o['info']['FontDescriptor'])) {
-                    $res .= "/FontDescriptor " . $o['info']['FontDescriptor'] . " 0 R\n";
+                    $res .= "/FontDescriptor ".$o['info']['FontDescriptor']." 0 R\n";
                 }
 
                 if (isset($o['info']['MissingWidth'])) {
-                    $res .= "/DW " . $o['info']['MissingWidth'] . "\n";
+                    $res .= "/DW ".$o['info']['MissingWidth']."\n";
                 }
 
                 if (isset($o['info']['fontFileName']) && isset($this->fonts[$o['info']['fontFileName']]['CIDWidths'])) {
@@ -1579,7 +1579,7 @@ 
                     $res .= "/W [$w]\n";
                 }
 
-                $res .= "/CIDToGIDMap " . $o['info']['cidToGidMap'] . " 0 R\n";
+                $res .= "/CIDToGIDMap ".$o['info']['cidToGidMap']." 0 R\n";
                 $res .= ">>\n";
                 $res .= "endobj";
 
@@ -1619,8 +1619,8 @@ 
 
                 $res = "\n$id 0 obj\n";
 
-                $res .= '<</Registry (' . $registry . ")\n"; // A string identifying an issuer of character collections
-                $res .= '/Ordering (' . $ordering . ")\n"; // A string that uniquely names a character collection issued by a specific registry
+                $res .= '<</Registry ('.$registry.")\n"; // A string identifying an issuer of character collections
+                $res .= '/Ordering ('.$ordering.")\n"; // A string that uniquely names a character collection issued by a specific registry
                 $res .= "/Supplement 0\n"; // The supplement number of the character collection.
                 $res .= ">>";
 
@@ -1659,12 +1659,12 @@ 
                 $compressed = isset($this->fonts[$fontFileName]['CIDtoGID_Compressed']) &&
                     $this->fonts[$fontFileName]['CIDtoGID_Compressed'];
 
-                if (!$compressed && isset($o['raw'])) {
+                if ( ! $compressed && isset($o['raw'])) {
                     $res .= $tmp;
                 } else {
                     $res .= "<<";
 
-                    if (!$compressed && $this->compressionReady && $this->options['compression']) {
+                    if ( ! $compressed && $this->compressionReady && $this->options['compression']) {
                         // then implement ZLIB based compression on this content stream
                         $compressed = true;
                         $tmp = gzcompress($tmp, 6);
@@ -1678,7 +1678,7 @@ 
                         $tmp = $this->ARC4($tmp);
                     }
 
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream";
+                    $res .= "\n/Length ".mb_strlen($tmp, '8bit').">>\nstream\n$tmp\nendstream";
                 }
 
                 $res .= "\nendobj";
@@ -1748,7 +1748,7 @@ 
         switch ($action) {
             case 'new':
                 $this->infoObject = $id;
-                $date = 'D:' . @date('Ymd');
+                $date = 'D:'.@date('Ymd');
                 $this->objects[$id] = [
                     't'    => 'info',
                     'info' => [
@@ -1833,12 +1833,12 @@ 
                 $res = "\n$id 0 obj\n<< /Type /Action";
                 switch ($o['type']) {
                     case 'ilink':
-                        if (!isset($this->destinations[(string)$o['info']['label']])) {
+                        if ( ! isset($this->destinations[(string) $o['info']['label']])) {
                             break;
                         }
 
                         // there will be an 'label' setting, this is the name of the destination
-                        $res .= "\n/S /GoTo\n/D " . $this->destinations[(string)$o['info']['label']] . " 0 R";
+                        $res .= "\n/S /GoTo\n/D ".$this->destinations[(string) $o['info']['label']]." 0 R";
                         break;
 
                     case 'URI':
@@ -1910,7 +1910,7 @@ 
                         $res .= "\n/Subtype /Link";
                         break;
                 }
-                $res .= "\n/A " . $o['info']['actionId'] . " 0 R";
+                $res .= "\n/A ".$o['info']['actionId']." 0 R";
                 $res .= "\n/Border [0 0 0]";
                 $res .= "\n/H /I";
                 $res .= "\n/Rect [ ";
@@ -1984,7 +1984,7 @@ 
 
             case 'annot':
                 // add an annotation to this page
-                if (!isset($o['info']['annot'])) {
+                if ( ! isset($o['info']['annot'])) {
                     $o['info']['annot'] = [];
                 }
 
@@ -1996,15 +1996,15 @@ 
                 $res = "\n$id 0 obj\n<< /Type /Page";
                 if (isset($o['info']['mediaBox'])) {
                     $tmp = $o['info']['mediaBox'];
-                    $res .= "\n/MediaBox [" . sprintf(
+                    $res .= "\n/MediaBox [".sprintf(
                             '%.3F %.3F %.3F %.3F',
                             $tmp[0],
                             $tmp[1],
                             $tmp[2],
                             $tmp[3]
-                        ) . ']';
+                        ).']';
                 }
-                $res .= "\n/Parent " . $o['info']['parent'] . " 0 R";
+                $res .= "\n/Parent ".$o['info']['parent']." 0 R";
 
                 if (isset($o['info']['annot'])) {
                     $res .= "\n/Annots [";
@@ -2016,7 +2016,7 @@ 
 
                 $count = count($o['info']['contents']);
                 if ($count == 1) {
-                    $res .= "\n/Contents " . $o['info']['contents'][0] . " 0 R";
+                    $res .= "\n/Contents ".$o['info']['contents'][0]." 0 R";
                 } else {
                     if ($count > 1) {
                         $res .= "\n/Contents [\n";
@@ -2096,7 +2096,7 @@ 
                         $res .= "\n/$k $v";
                     }
 
-                    $res .= "\n/Length " . mb_strlen($tmp, '8bit') . " >>\nstream\n$tmp\nendstream";
+                    $res .= "\n/Length ".mb_strlen($tmp, '8bit')." >>\nstream\n$tmp\nendstream";
                 }
 
                 $res .= "\nendobj";
@@ -2119,7 +2119,7 @@ 
                 $this->objects[$id] = [
                     't'    => 'embedjs',
                     'info' => [
-                        'Names' => '[(EmbeddedJS) ' . ($id + 1) . ' 0 R]'
+                        'Names' => '[(EmbeddedJS) '.($id + 1).' 0 R]'
                     ]
                 ];
                 break;
@@ -2152,7 +2152,7 @@ 
                     't'    => 'javascript',
                     'info' => [
                         'S'  => '/JavaScript',
-                        'JS' => '(' . $this->filterText($code, true, false) . ')',
+                        'JS' => '('.$this->filterText($code, true, false).')',
                     ]
                 ];
                 break;
@@ -2187,7 +2187,7 @@ 
                 // make the new object
                 $this->objects[$id] = ['t' => 'image', 'data' => &$options['data'], 'info' => []];
 
-                $info =& $this->objects[$id]['info'];
+                $info = & $this->objects[$id]['info'];
 
                 $info['Type'] = '/XObject';
                 $info['Subtype'] = '/Image';
@@ -2195,11 +2195,11 @@ 
                 $info['Height'] = $options['ih'];
 
                 if (isset($options['masked']) && $options['masked']) {
-                    $info['SMask'] = ($this->numObj - 1) . ' 0 R';
+                    $info['SMask'] = ($this->numObj - 1).' 0 R';
                 }
 
-                if (!isset($options['type']) || $options['type'] === 'jpg') {
-                    if (!isset($options['channels'])) {
+                if ( ! isset($options['type']) || $options['type'] === 'jpg') {
+                    if ( ! isset($options['channels'])) {
                         $options['channels'] = 3;
                     }
 
@@ -2224,17 +2224,17 @@ 
                 } else {
                     if ($options['type'] === 'png') {
                         $info['Filter'] = '/FlateDecode';
-                        $info['DecodeParms'] = '<< /Predictor 15 /Colors ' . $options['ncolor'] . ' /Columns ' . $options['iw'] . ' /BitsPerComponent ' . $options['bitsPerComponent'] . '>>';
+                        $info['DecodeParms'] = '<< /Predictor 15 /Colors '.$options['ncolor'].' /Columns '.$options['iw'].' /BitsPerComponent '.$options['bitsPerComponent'].'>>';
 
                         if ($options['isMask']) {
                             $info['ColorSpace'] = '/DeviceGray';
                         } else {
                             if (mb_strlen($options['pdata'], '8bit')) {
-                                $tmp = ' [ /Indexed /DeviceRGB ' . (mb_strlen($options['pdata'], '8bit') / 3 - 1) . ' ';
+                                $tmp = ' [ /Indexed /DeviceRGB '.(mb_strlen($options['pdata'], '8bit') / 3 - 1).' ';
                                 $this->numObj++;
                                 $this->o_contents($this->numObj, 'new');
                                 $this->objects[$this->numObj]['c'] = $options['pdata'];
-                                $tmp .= $this->numObj . ' 0 R';
+                                $tmp .= $this->numObj.' 0 R';
                                 $tmp .= ' ]';
                                 $info['ColorSpace'] = $tmp;
 
@@ -2242,15 +2242,15 @@ 
                                     $transparency = $options['transparency'];
                                     switch ($transparency['type']) {
                                         case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+                                            $tmp = ' [ '.$transparency['data'].' '.$transparency['data'].'] ';
                                             $info['Mask'] = $tmp;
                                             break;
 
                                         case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] .
-                                                $transparency['g'] . ' ' . $transparency['g'] .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
+                                            $tmp = ' [ '.
+                                                $transparency['r'].' '.$transparency['r'].
+                                                $transparency['g'].' '.$transparency['g'].
+                                                $transparency['b'].' '.$transparency['b'].
                                                 ' ] ';
                                             $info['Mask'] = $tmp;
                                             break;
@@ -2262,21 +2262,21 @@ 
 
                                     switch ($transparency['type']) {
                                         case 'indexed':
-                                            $tmp = ' [ ' . $transparency['data'] . ' ' . $transparency['data'] . '] ';
+                                            $tmp = ' [ '.$transparency['data'].' '.$transparency['data'].'] ';
                                             $info['Mask'] = $tmp;
                                             break;
 
                                         case 'color-key':
-                                            $tmp = ' [ ' .
-                                                $transparency['r'] . ' ' . $transparency['r'] . ' ' .
-                                                $transparency['g'] . ' ' . $transparency['g'] . ' ' .
-                                                $transparency['b'] . ' ' . $transparency['b'] .
+                                            $tmp = ' [ '.
+                                                $transparency['r'].' '.$transparency['r'].' '.
+                                                $transparency['g'].' '.$transparency['g'].' '.
+                                                $transparency['b'].' '.$transparency['b'].
                                                 ' ] ';
                                             $info['Mask'] = $tmp;
                                             break;
                                     }
                                 }
-                                $info['ColorSpace'] = '/' . $options['color'];
+                                $info['ColorSpace'] = '/'.$options['color'];
                             }
                         }
 
@@ -2306,7 +2306,7 @@ 
                     $tmp = $this->ARC4($tmp);
                 }
 
-                $res .= "\n/Length " . mb_strlen($tmp, '8bit') . ">>\nstream\n$tmp\nendstream\nendobj";
+                $res .= "\n/Length ".mb_strlen($tmp, '8bit').">>\nstream\n$tmp\nendstream\nendobj";
 
                 return $res;
         }
@@ -2367,7 +2367,7 @@ 
                 $res = "\n$id 0 obj\n<< /Type /ExtGState\n";
 
                 foreach ($o["info"] as $k => $v) {
-                    if (!in_array($k, $valid_params)) {
+                    if ( ! in_array($k, $valid_params)) {
                         continue;
                     }
                     $res .= "/$k $v\n";
@@ -2434,21 +2434,21 @@ 
 
                 $res .= "/Resources <<";
                 if (isset($o['procset'])) {
-                    $res .= "\n/ProcSet " . $o['procset'] . " 0 R";
+                    $res .= "\n/ProcSet ".$o['procset']." 0 R";
                 } else {
                     $res .= "\n/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]";
                 }
                 if (isset($o['fonts']) && count($o['fonts'])) {
                     $res .= "\n/Font << ";
                     foreach ($o['fonts'] as $finfo) {
-                        $res .= "\n/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R";
+                        $res .= "\n/F".$finfo['fontNum']." ".$finfo['objNum']." 0 R";
                     }
                     $res .= "\n>>";
                 }
                 if (isset($o['xObjects']) && count($o['xObjects'])) {
                     $res .= "\n/XObject << ";
                     foreach ($o['xObjects'] as $finfo) {
-                        $res .= "\n/" . $finfo['label'] . " " . $finfo['objNum'] . " 0 R";
+                        $res .= "\n/".$finfo['label']." ".$finfo['objNum']." 0 R";
                     }
                     $res .= "\n>>";
                 }
@@ -2466,8 +2466,8 @@ 
                     $tmp = $this->ARC4($tmp);
                 }
 
-                $res .= "/Length " . mb_strlen($tmp, '8bit') . " >>\n";
-                $res .= "stream\n" . $tmp . "\nendstream" . "\nendobj";
+                $res .= "/Length ".mb_strlen($tmp, '8bit')." >>\n";
+                $res .= "stream\n".$tmp."\nendstream"."\nendobj";
 
                 return $res;
         }
@@ -2522,7 +2522,7 @@ 
                 if (isset($o['fonts']) && count($o['fonts'])) {
                     $res .= "/Font << \n";
                     foreach ($o['fonts'] as $finfo) {
-                        $res .= "/F" . $finfo['fontNum'] . " " . $finfo['objNum'] . " 0 R\n";
+                        $res .= "/F".$finfo['fontNum']." ".$finfo['objNum']." 0 R\n";
                     }
                     $res .= ">>\n";
                 }
@@ -2647,7 +2647,7 @@ 
 
             case 'byterange':
                 $o = &$this->objects[$id];
-                $content =& $options['content'];
+                $content = & $options['content'];
                 $content_len = strlen($content);
                 $pos = strpos($content, sprintf("/ByteRange [ %'.010d", $id));
                 $len = strlen('/ByteRange [ ********** ********** ********** ********** ]');
@@ -2655,8 +2655,8 @@ 
                 $content = substr_replace($content, str_pad(sprintf('/ByteRange [ 0 %u %u %u ]', $rangeStartPos, $rangeStartPos + $sign_maxlen + 2, $content_len - 2 - $sign_maxlen - $rangeStartPos), $len, ' ', STR_PAD_RIGHT), $pos, $len);
 
                 $fuid = uniqid();
-                $tmpInput = $this->tmp . "/pkcs7.tmp." . $fuid . '.in';
-                $tmpOutput = $this->tmp . "/pkcs7.tmp." . $fuid . '.out';
+                $tmpInput = $this->tmp."/pkcs7.tmp.".$fuid.'.in';
+                $tmpOutput = $this->tmp."/pkcs7.tmp.".$fuid.'.out';
 
                 if (file_put_contents($tmpInput, substr($content, 0, $rangeStartPos)) === false) {
                     throw new \Exception("Unable to write temporary file for signing.");
@@ -2701,12 +2701,12 @@ 
                     $this->encryptInit($id);
                 }
 
-                $res .= "/ByteRange " .sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
-                $res .= "/Contents <" . str_pad('', $sign_maxlen, '0') . ">\n";
+                $res .= "/ByteRange ".sprintf("[ %'.010d ********** ********** ********** ]\n", $id);
+                $res .= "/Contents <".str_pad('', $sign_maxlen, '0').">\n";
                 $res .= "/Filter/Adobe.PPKLite\n"; //PPKMS \n";
                 $res .= "/Type/Sig/SubFilter/adbe.pkcs7.detached \n";
 
-                $date = "D:" . substr_replace(date('YmdHisO'), '\'', -2, 0) . '\'';
+                $date = "D:".substr_replace(date('YmdHisO'), '\'', -2, 0).'\'';
                 if ($encrypted) {
                     $date = $this->ARC4($date);
                 }
@@ -2722,8 +2722,8 @@ 
                         case 'Reason':
                         case 'ContactInfo':
                             if ($v !== null && $v !== '') {
-                                $res .= "/$k (" .
-                                  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v) . ") \n";
+                                $res .= "/$k (".
+                                  ($encrypted ? $this->filterText($this->ARC4($v), false, false) : $v).") \n";
                             }
                             break;
                     }
@@ -2755,10 +2755,10 @@ 
 
             case 'keys':
                 // figure out the additional parameters required
-                $pad = chr(0x28) . chr(0xBF) . chr(0x4E) . chr(0x5E) . chr(0x4E) . chr(0x75) . chr(0x8A) . chr(0x41)
-                    . chr(0x64) . chr(0x00) . chr(0x4E) . chr(0x56) . chr(0xFF) . chr(0xFA) . chr(0x01) . chr(0x08)
-                    . chr(0x2E) . chr(0x2E) . chr(0x00) . chr(0xB6) . chr(0xD0) . chr(0x68) . chr(0x3E) . chr(0x80)
-                    . chr(0x2F) . chr(0x0C) . chr(0xA9) . chr(0xFE) . chr(0x64) . chr(0x53) . chr(0x69) . chr(0x7A);
+                $pad = chr(0x28).chr(0xBF).chr(0x4E).chr(0x5E).chr(0x4E).chr(0x75).chr(0x8A).chr(0x41)
+                    . chr(0x64).chr(0x00).chr(0x4E).chr(0x56).chr(0xFF).chr(0xFA).chr(0x01).chr(0x08)
+                    . chr(0x2E).chr(0x2E).chr(0x00).chr(0xB6).chr(0xD0).chr(0x68).chr(0x3E).chr(0x80)
+                    . chr(0x2F).chr(0x0C).chr(0xA9).chr(0xFE).chr(0x64).chr(0x53).chr(0x69).chr(0x7A);
 
                 $info = $this->objects[$id]['info'];
 
@@ -2768,7 +2768,7 @@ 
                     $owner = substr($info['owner'], 0, 32);
                 } else {
                     if ($len < 32) {
-                        $owner = $info['owner'] . substr($pad, 0, 32 - $len);
+                        $owner = $info['owner'].substr($pad, 0, 32 - $len);
                     } else {
                         $owner = $info['owner'];
                     }
@@ -2779,7 +2779,7 @@ 
                     $user = substr($info['user'], 0, 32);
                 } else {
                     if ($len < 32) {
-                        $user = $info['user'] . substr($pad, 0, 32 - $len);
+                        $user = $info['user'].substr($pad, 0, 32 - $len);
                     } else {
                         $user = $info['user'];
                     }
@@ -2793,7 +2793,7 @@ 
 
                 // now make the u value, phew.
                 $tmp = $this->md5_16(
-                    $user . $ovalue . chr($info['p']) . chr(255) . chr(255) . chr(255) . hex2bin($this->fileIdentifier)
+                    $user.$ovalue.chr($info['p']).chr(255).chr(255).chr(255).hex2bin($this->fileIdentifier)
                 );
 
                 $ukey = substr($tmp, 0, 5);
@@ -2812,11 +2812,11 @@ 
                 $res .= "\n/Filter /Standard";
                 $res .= "\n/V 1";
                 $res .= "\n/R 2";
-                $res .= "\n/O (" . $this->filterText($o['info']['O'], false, false) . ')';
-                $res .= "\n/U (" . $this->filterText($o['info']['U'], false, false) . ')';
+                $res .= "\n/O (".$this->filterText($o['info']['O'], false, false).')';
+                $res .= "\n/U (".$this->filterText($o['info']['U'], false, false).')';
                 // and the p-value needs to be converted to account for the twos-complement approach
                 $o['info']['p'] = (($o['info']['p'] ^ 255) + 1) * -1;
-                $res .= "\n/P " . ($o['info']['p']);
+                $res .= "\n/P ".($o['info']['p']);
                 $res .= "\n>>\nendobj";
 
                 return $res;
@@ -2884,7 +2884,7 @@ 
                             $filename = $entry['filename'];
                         }
 
-                        $res .= "($filename) " . $entry['dict_reference'] . " 0 R ";
+                        $res .= "($filename) ".$entry['dict_reference']." 0 R ";
                     }
 
                     $res .= "] >> endobj";
@@ -2921,7 +2921,7 @@ 
                 $description = $this->filterText($description, false, false);
 
                 $res = "\n$id 0 obj <</Type /Filespec /EF";
-                $res .= " <</F " . $info['embedded_reference'] . " 0 R >>";
+                $res .= " <</F ".$info['embedded_reference']." 0 R >>";
                 $res .= " /F ($filename) /UF ($filename) /Desc ($description)";
                 $res .= " >> endobj";
                 return $res;
@@ -2965,8 +2965,8 @@ 
                 }
                 $file_size_compressed = mb_strlen($file_content_compressed, '8bit');
 
-                $res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>" .
-                    " /Type/EmbeddedFile /Filter/FlateDecode" .
+                $res = "\n$id 0 obj <</Params <</Size $file_size_uncompressed /CheckSum ($checksum) >>".
+                    " /Type/EmbeddedFile /Filter/FlateDecode".
                     " /Length $file_size_compressed >> stream\n$file_content_compressed\nendstream\nendobj";
 
                 return $res;
@@ -3007,7 +3007,7 @@ 
         $tmp = $this->encryptionKey;
         $hex = dechex($id);
         if (mb_strlen($hex, '8bit') < 6) {
-            $hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')) . $hex;
+            $hex = substr('000000', 0, 6 - mb_strlen($hex, '8bit')).$hex;
         }
         $tmp .= chr(hexdec(substr($hex, 4, 2)))
             . chr(hexdec(substr($hex, 2, 2)))
@@ -3186,7 +3186,7 @@ 
 
         if ($this->fileIdentifier === '') {
             $tmp = implode('', $this->objects[$this->infoObject]['info']);
-            $this->fileIdentifier = md5('DOMPDF' . __FILE__ . $tmp . microtime() . mt_rand());
+            $this->fileIdentifier = md5('DOMPDF'.__FILE__.$tmp.microtime().mt_rand());
         }
 
         if ($this->arc4_objnum) {
@@ -3197,7 +3197,7 @@ 
         $this->checkAllHere();
 
         $xref = [];
-        $content = '%PDF-' . self::PDF_VERSION;
+        $content = '%PDF-'.self::PDF_VERSION;
         $pos = mb_strlen($content, '8bit');
 
         // pre-process o_font objects before output of all objects
@@ -3208,31 +3208,31 @@ 
         }
 
         foreach ($this->objects as $k => $v) {
-            $tmp = 'o_' . $v['t'];
+            $tmp = 'o_'.$v['t'];
             $cont = $this->$tmp($k, 'out');
             $content .= $cont;
             $xref[] = $pos + 1; //+1 to account for \n at the start of each object
             $pos += mb_strlen($cont, '8bit');
         }
 
-        $content .= "\nxref\n0 " . (count($xref) + 1) . "\n0000000000 65535 f \n";
+        $content .= "\nxref\n0 ".(count($xref) + 1)."\n0000000000 65535 f \n";
 
         foreach ($xref as $p) {
-            $content .= str_pad($p, 10, "0", STR_PAD_LEFT) . " 00000 n \n";
+            $content .= str_pad($p, 10, "0", STR_PAD_LEFT)." 00000 n \n";
         }
 
-        $content .= "trailer\n<<\n" .
-            '/Size ' . (count($xref) + 1) . "\n" .
-            '/Root 1 0 R' . "\n" .
-            '/Info ' . $this->infoObject . " 0 R\n"
+        $content .= "trailer\n<<\n".
+            '/Size '.(count($xref) + 1)."\n".
+            '/Root 1 0 R'."\n".
+            '/Info '.$this->infoObject." 0 R\n"
         ;
 
         // if encryption has been applied to this document then add the marker for this dictionary
         if ($this->arc4_objnum > 0) {
-            $content .= '/Encrypt ' . $this->arc4_objnum . " 0 R\n";
+            $content .= '/Encrypt '.$this->arc4_objnum." 0 R\n";
         }
 
-        $content .= '/ID[<' . $this->fileIdentifier . '><' . $this->fileIdentifier . ">]\n";
+        $content .= '/ID[<'.$this->fileIdentifier.'><'.$this->fileIdentifier.">]\n";
 
         // account for \n added at start of xref table
         $pos++;
@@ -3241,7 +3241,7 @@ 
 
         if (count($this->byteRange) > 0) {
             foreach ($this->byteRange as $k => $v) {
-                $tmp = 'o_' . $v['t'];
+                $tmp = 'o_'.$v['t'];
                 $this->$tmp($k, 'byterange', ['content' => &$content]);
             }
         }
@@ -3315,7 +3315,7 @@ 
 
         $this->addMessage("openFont: $font - $name");
 
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
+        if ( ! $this->isUnicode || in_array(mb_strtolower(basename($name)), self::$coreFonts)) {
             $metrics_name = "$name.afm";
         } else {
             $metrics_name = "$name.ufm";
@@ -3324,17 +3324,17 @@ 
         $cache_name = "$metrics_name.json";
         $this->addMessage("metrics: $metrics_name, cache: $cache_name");
         
-        if (file_exists($fontcache . '/' . $cache_name)) {
+        if (file_exists($fontcache.'/'.$cache_name)) {
             $this->addMessage("openFont: json metrics file exists $fontcache/$cache_name");
-            $cached_font_info = json_decode(file_get_contents($fontcache . '/' . $cache_name), true);
-            if (!isset($cached_font_info['_version_']) || $cached_font_info['_version_'] != $this->fontcacheVersion) {
+            $cached_font_info = json_decode(file_get_contents($fontcache.'/'.$cache_name), true);
+            if ( ! isset($cached_font_info['_version_']) || $cached_font_info['_version_'] != $this->fontcacheVersion) {
                 $this->addMessage('openFont: font cache is out of date, regenerating');
             } else {
                 $this->fonts[$font] = $cached_font_info;
             }
         }
 
-        if (!isset($this->fonts[$font]) && file_exists("$dir/$metrics_name")) {
+        if ( ! isset($this->fonts[$font]) && file_exists("$dir/$metrics_name")) {
             // then rebuild the php_<font>.afm file from the <font>.afm file
             $this->addMessage("openFont: build php file from $dir/$metrics_name");
             $data = [];
@@ -3411,12 +3411,12 @@ 
                                 }
                             }
 
-                            $c = (int)$dtmp['C'];
+                            $c = (int) $dtmp['C'];
                             $n = $dtmp['N'];
                             $width = floatval($dtmp['WX']);
 
                             if ($c >= 0) {
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
+                                if ( ! ctype_xdigit($n) || $c != hexdec($n)) {
                                     $data['codeToName'][$c] = $n;
                                 }
                                 $data['C'][$c] = $width;
@@ -3424,7 +3424,7 @@ 
                                 $data['C'][$n] = $width;
                             }
 
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+                            if ( ! isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
                                 $data['MissingWidth'] = $width;
                             }
 
@@ -3432,7 +3432,7 @@ 
 
                         // U 827 ; WX 0 ; N squaresubnosp ; G 675 ;
                         case 'U': // Found in UFM files
-                            if (!$data['isUnicode']) {
+                            if ( ! $data['isUnicode']) {
                                 break;
                             }
 
@@ -3457,7 +3457,7 @@ 
                                 }
                             }
 
-                            $c = (int)$dtmp['U'];
+                            $c = (int) $dtmp['U'];
                             $n = $dtmp['N'];
                             $glyph = $dtmp['G'];
                             $width = floatval($dtmp['WX']);
@@ -3469,7 +3469,7 @@ 
                                     $cidtogid[$c * 2 + 1] = chr($glyph & 0xFF);
                                 }
 
-                                if (!ctype_xdigit($n) || $c != hexdec($n)) {
+                                if ( ! ctype_xdigit($n) || $c != hexdec($n)) {
                                     $data['codeToName'][$c] = $n;
                                 }
                                 $data['C'][$c] = $width;
@@ -3477,7 +3477,7 @@ 
                                 $data['C'][$n] = $width;
                             }
 
-                            if (!isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
+                            if ( ! isset($data['MissingWidth']) && $c === -1 && $n === '.notdef') {
                                 $data['MissingWidth'] = $width;
                             }
 
@@ -3510,7 +3510,7 @@ 
             $data = null;
         }
 
-        if (!isset($this->fonts[$font])) {
+        if ( ! isset($this->fonts[$font])) {
             $this->addMessage("openFont: no font file found for $font. Do you need to run load_font.php?");
         }
     }
@@ -3540,7 +3540,7 @@ 
             $fontName = substr($fontName, 0, mb_strlen($fontName) - 4);
         }
 
-        if (!isset($this->fonts[$fontName])) {
+        if ( ! isset($this->fonts[$fontName])) {
             $this->addMessage("selectFont: selecting - $fontName - $encoding, $set");
 
             // load the file
@@ -3677,7 +3677,7 @@ 
     {
         $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
 
-        if (!$force && $this->currentColor == $new_color) {
+        if ( ! $force && $this->currentColor == $new_color) {
             return;
         }
 
@@ -3697,7 +3697,7 @@ 
      */
     function setFillRule($fillRule)
     {
-        if (!in_array($fillRule, ["nonzero", "evenodd"])) {
+        if ( ! in_array($fillRule, ["nonzero", "evenodd"])) {
             return;
         }
 
@@ -3714,7 +3714,7 @@ 
     {
         $new_color = [$color[0], $color[1], $color[2], isset($color[3]) ? $color[3] : null];
 
-        if (!$force && $this->currentStrokeColor == $new_color) {
+        if ( ! $force && $this->currentStrokeColor == $new_color) {
             return;
         }
 
@@ -3775,7 +3775,7 @@ 
             "Exclusion"
         ];
 
-        if (!in_array($mode, $blend_modes)) {
+        if ( ! in_array($mode, $blend_modes)) {
             $mode = "Normal";
         }
 
@@ -3795,7 +3795,7 @@ 
 
         $options = [
             "BM" => "/$mode",
-            "CA" => (float)$opacity
+            "CA" => (float) $opacity
         ];
 
         $this->setGraphicsState($options);
@@ -3830,7 +3830,7 @@ 
             "Exclusion"
         ];
 
-        if (!in_array($mode, $blend_modes)) {
+        if ( ! in_array($mode, $blend_modes)) {
             $mode = "Normal";
         }
 
@@ -3850,7 +3850,7 @@ 
 
         $options = [
             "BM" => "/$mode",
-            "ca" => (float)$opacity,
+            "ca" => (float) $opacity,
         ];
 
         $this->setGraphicsState($options);
@@ -4035,15 +4035,15 @@ 
             $nSeg = 2;
         }
 
-        $astart = deg2rad((float)$astart);
-        $afinish = deg2rad((float)$afinish);
+        $astart = deg2rad((float) $astart);
+        $afinish = deg2rad((float) $afinish);
         $totalAngle = $afinish - $astart;
 
         $dt = $totalAngle / $nSeg;
         $dtm = $dt / 3;
 
         if ($angle != 0) {
-            $a = -1 * deg2rad((float)$angle);
+            $a = -1 * deg2rad((float) $angle);
 
             $this->addContent(
                 sprintf("\n q %.3F %.3F %.3F %.3F %.3F %.3F cm", cos($a), -sin($a), sin($a), cos($a), $x0, $y0)
@@ -4059,7 +4059,7 @@ 
         $c0 = -$r1 * sin($t1);
         $d0 = $r2 * cos($t1);
 
-        if (!$incomplete) {
+        if ( ! $incomplete) {
             $this->addContent(sprintf("\n%.3F %.3F m ", $a0, $b0));
         }
 
@@ -4089,7 +4089,7 @@ 
             $d0 = $d1;
         }
 
-        if (!$incomplete) {
+        if ( ! $incomplete) {
             if ($fill) {
                 $this->addContent(' f');
             }
@@ -4149,7 +4149,7 @@ 
         }
 
         if (is_array($dash)) {
-            $string .= ' [ ' . implode(' ', $dash) . " ] $phase d";
+            $string .= ' [ '.implode(' ', $dash)." ] $phase d";
         }
 
         $this->currentLineStyle = $string;
@@ -4227,12 +4227,12 @@ 
 
     function fill()
     {
-        $this->addContent("\nf" . ($this->fillRule === "evenodd" ? "*" : ""));
+        $this->addContent("\nf".($this->fillRule === "evenodd" ? "*" : ""));
     }
 
     function fillStroke()
     {
-        $this->addContent("\nb" . ($this->fillRule === "evenodd" ? "*" : ""));
+        $this->addContent("\nb".($this->fillRule === "evenodd" ? "*" : ""));
     }
 
     /**
@@ -4318,16 +4318,16 @@ 
      */
     public function addFormField($type, $name, $x0, $y0, $x1, $y1, $ff = 0, $size = 10.0, $color = [0, 0, 0])
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
-        $color = implode(' ', $color) . ' rg';
+        $color = implode(' ', $color).' rg';
 
         $currentFontNum = $this->currentFontNum;
         $font = array_filter(
             $this->objects[$this->currentNode]['info']['fonts'],
-            function ($item) use ($currentFontNum) { return $item['fontNum'] == $currentFontNum; }
+            function($item) use ($currentFontNum) { return $item['fontNum'] == $currentFontNum; }
         );
 
         $this->o_acroform($this->acroFormId, 'font',
@@ -4341,7 +4341,7 @@ 
           'T' => $name,
           'Ff' => $ff,
           'pageid' => $this->currentPage,
-          'da' => "$color /F$this->currentFontNum " . sprintf('%.1F Tf ', $size)
+          'da' => "$color /F$this->currentFontNum ".sprintf('%.1F Tf ', $size)
         ]);
 
         return $fieldId;
@@ -4708,17 +4708,17 @@ 
             die("Unable to stream pdf: headers already sent");
         }
 
-        if (!isset($options["compress"])) $options["compress"] = true;
-        if (!isset($options["Attachment"])) $options["Attachment"] = true;
+        if ( ! isset($options["compress"])) $options["compress"] = true;
+        if ( ! isset($options["Attachment"])) $options["Attachment"] = true;
 
-        $debug = !$options['compress'];
+        $debug = ! $options['compress'];
         $tmp = ltrim($this->output($debug));
 
         header("Cache-Control: private");
         header("Content-Type: application/pdf");
-        header("Content-Length: " . mb_strlen($tmp, "8bit"));
+        header("Content-Length: ".mb_strlen($tmp, "8bit"));
 
-        $filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
+        $filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")).".pdf";
         $attachment = $options["Attachment"] ? "attachment" : "inline";
 
         $encoding = mb_detect_encoding($filename);
@@ -4745,7 +4745,7 @@ 
      */
     public function getFontHeight(float $size): float
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4768,7 +4768,7 @@ 
             // Courier font.
             //
             // Both have been added manually to the .afm and .ufm files.
-            $h += (int)$font['FontHeightOffset'];
+            $h += (int) $font['FontHeightOffset'];
         }
 
         return $size * $h / 1000;
@@ -4781,7 +4781,7 @@ 
      */
     public function getFontXHeight(float $size): float
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4809,7 +4809,7 @@ 
     public function getFontDescender(float $size): float
     {
         // note that this will most likely return a negative value
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4830,7 +4830,7 @@ 
      */
     function filterText($text, $bom = true, $convert_encoding = true)
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -4940,12 +4940,12 @@ 
             if ($c === 0xFFFD) {
                 $out .= "\xFF\xFD"; // replacement character
             } elseif ($c < 0x10000) {
-                $out .= chr($c >> 0x08) . chr($c & 0xFF);
+                $out .= chr($c >> 0x08).chr($c & 0xFF);
             } else {
                 $c -= 0x10000;
                 $w1 = 0xD800 | ($c >> 0x10);
                 $w2 = 0xDC00 | ($c & 0x3FF);
-                $out .= chr($w1 >> 0x08) . chr($w1 & 0xFF) . chr($w2 >> 0x08) . chr($w2 & 0xFF);
+                $out .= chr($w1 >> 0x08).chr($w1 & 0xFF).chr($w2 >> 0x08).chr($w2 & 0xFF);
             }
         }
 
@@ -4973,7 +4973,7 @@ 
         $words = explode(' ', $text);
         $nspaces = count($words) - 1;
         $w += $wa * $nspaces;
-        $a = deg2rad((float)$angle);
+        $a = deg2rad((float) $angle);
 
         return [cos($a) * $w + $x, -sin($a) * $w + $y];
     }
@@ -5008,11 +5008,11 @@ 
      */
     function registerText($font, $text)
     {
-        if (!$this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
+        if ( ! $this->isUnicode || in_array(mb_strtolower(basename($font)), self::$coreFonts)) {
             return;
         }
 
-        if (!isset($this->stringSubsets[$font])) {
+        if ( ! isset($this->stringSubsets[$font])) {
             $base_subset = "\u{fffd}\u{fffe}\u{ffff}";
             $this->stringSubsets[$font] = $this->utf8toCodePointsArray($base_subset);
         }
@@ -5036,7 +5036,7 @@ 
      */
     function addText($x, $y, $size, $text, $angle = 0, $wordSpaceAdjust = 0, $charSpaceAdjust = 0, $smallCaps = false)
     {
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -5077,7 +5077,7 @@ 
         if ($angle == 0) {
             $this->addContent(sprintf("\nBT %.3F %.3F Td", $x, $y));
         } else {
-            $a = deg2rad((float)$angle);
+            $a = deg2rad((float) $angle);
             $this->addContent(
                 sprintf("\nBT %.3F %.3F %.3F %.3F %.3F %.3F Tm", cos($a), -sin($a), sin($a), cos($a), $x, $y)
             );
@@ -5100,9 +5100,9 @@ 
             // modify unicode text so that extra word spacing is manually implemented (bug #)
             if ($this->fonts[$this->currentFont]['isUnicode'] && $wordSpaceAdjust != 0) {
                 $space_scale = 1000 / $size;
-                $place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20" . (-round($space_scale * $wordSpaceAdjust)) . "\x00\x20(", $place_text);
+                $place_text = str_replace("\x00\x20", "\x00\x20)\x00\x20".(-round($space_scale * $wordSpaceAdjust))."\x00\x20(", $place_text);
             }
-            $this->addContent(" /F$this->currentFontNum " . sprintf('%.1F Tf ', $size));
+            $this->addContent(" /F$this->currentFontNum ".sprintf('%.1F Tf ', $size));
             $this->addContent(" [($place_text)] TJ");
         }
 
@@ -5161,7 +5161,7 @@ 
         // and put them back at the end.
         $store_currentTextState = $this->currentTextState;
 
-        if (!$this->numFonts) {
+        if ( ! $this->numFonts) {
             $this->selectFont($this->defaultFont);
         }
 
@@ -5262,7 +5262,7 @@ 
             // ok to use this as stack starts numbering at 1
             $this->setColor($opt['col'], true);
             $this->setStrokeColor($opt['str'], true);
-            $this->addContent("\n" . $opt['lin']);
+            $this->addContent("\n".$opt['lin']);
             //    $this->currentLineStyle = $opt['lin'];
         } else {
             $this->nStateStack++;
@@ -5283,11 +5283,11 @@ 
      */
     function restoreState($pageEnd = 0)
     {
-        if (!$pageEnd) {
+        if ( ! $pageEnd) {
             $n = $this->nStateStack;
             $this->currentColor = $this->stateStack[$n]['col'];
             $this->currentStrokeColor = $this->stateStack[$n]['str'];
-            $this->addContent("\n" . $this->stateStack[$n]['lin']);
+            $this->addContent("\n".$this->stateStack[$n]['lin']);
             $this->currentLineStyle = $this->stateStack[$n]['lin'];
             $this->stateStack[$n] = null;
             unset($this->stateStack[$n]);
@@ -5561,7 +5561,7 @@ 
      */
     function addImagePng(&$img, $file, $x, $y, $w = 0.0, $h = 0.0, $is_mask = false, $mask = null)
     {
-        if (!function_exists("imagepng")) {
+        if ( ! function_exists("imagepng")) {
             throw new \Exception("The PHP GD extension is required, but is not installed.");
         }
 
@@ -5587,7 +5587,7 @@ 
             //DEBUG_IMG_TEMP
             //debugpng
             if (defined("DEBUGPNG") && DEBUGPNG) {
-                print '[addImagePng ' . $file . ']';
+                print '[addImagePng '.$file.']';
             }
 
             ob_start();
@@ -5605,7 +5605,7 @@ 
             }
 
             if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+                $this->addMessage('PNG error - ('.$file.') '.$errormsg);
 
                 return;
             }
@@ -5756,9 +5756,9 @@ 
                         // without gamma correction
                         $pixel = (127 - $alpha) * 2;
 
-                        $key = $col['red'] . $col['green'] . $col['blue'];
+                        $key = $col['red'].$col['green'].$col['blue'];
 
-                        if (!isset($allocated_colors[$key])) {
+                        if ( ! isset($allocated_colors[$key])) {
                             $pixel_img = imagecolorallocate($img, $col['red'], $col['green'], $col['blue']);
                             $allocated_colors[$key] = $pixel_img;
                         } else {
@@ -5809,7 +5809,7 @@ 
      */
     function addPngFromFile($file, $x, $y, $w = 0, $h = 0)
     {
-        if (!function_exists("imagecreatefrompng")) {
+        if ( ! function_exists("imagecreatefrompng")) {
             throw new \Exception("The PHP GD extension is required, but is not installed.");
         }
 
@@ -5857,7 +5857,7 @@ 
             //Therefore create an empty image with white background and merge the
             //image in with alpha blending.
             $imgtmp = @imagecreatefrompng($file);
-            if (!$imgtmp) {
+            if ( ! $imgtmp) {
                 return;
             }
             $sx = imagesx($imgtmp);
@@ -5940,21 +5940,21 @@ 
 
             $error = 0;
 
-            if (!$error) {
-                $header = chr(137) . chr(80) . chr(78) . chr(71) . chr(13) . chr(10) . chr(26) . chr(10);
+            if ( ! $error) {
+                $header = chr(137).chr(80).chr(78).chr(71).chr(13).chr(10).chr(26).chr(10);
 
                 if (mb_substr($data, 0, 8, '8bit') != $header) {
                     $error = 1;
 
                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile this file does not have a valid header ' . $file . ']';
+                        print '[addPngFromFile this file does not have a valid header '.$file.']';
                     }
 
                     $errormsg = 'this file does not have a valid header';
                 }
             }
 
-            if (!$error) {
+            if ( ! $error) {
                 // set pointer
                 $p = 8;
                 $len = mb_strlen($data, '8bit');
@@ -5987,7 +5987,7 @@ 
 
                                 //debugpng
                                 if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported compression method ' . $file . ']';
+                                    print '[addPngFromFile unsupported compression method '.$file.']';
                                 }
 
                                 $errormsg = 'unsupported compression method';
@@ -5998,7 +5998,7 @@ 
 
                                 //debugpng
                                 if (defined("DEBUGPNG") && DEBUGPNG) {
-                                    print '[addPngFromFile unsupported filter method ' . $file . ']';
+                                    print '[addPngFromFile unsupported filter method '.$file.']';
                                 }
 
                                 $errormsg = 'unsupported filter method';
@@ -6070,7 +6070,7 @@ 
                                 //unsupported transparency type
                                 default:
                                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                                        print '[addPngFromFile unsupported transparency type ' . $file . ']';
+                                        print '[addPngFromFile unsupported transparency type '.$file.']';
                                     }
                                     break;
                             }
@@ -6085,12 +6085,12 @@ 
                     $p += $chunkLen + 12;
                 }
 
-                if (!$haveHeader) {
+                if ( ! $haveHeader) {
                     $error = 1;
 
                     //debugpng
                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile information header is missing ' . $file . ']';
+                        print '[addPngFromFile information header is missing '.$file.']';
                     }
 
                     $errormsg = 'information header is missing';
@@ -6101,25 +6101,25 @@ 
 
                     //debugpng
                     if (defined("DEBUGPNG") && DEBUGPNG) {
-                        print '[addPngFromFile no support for interlaced images in pdf ' . $file . ']';
+                        print '[addPngFromFile no support for interlaced images in pdf '.$file.']';
                     }
 
                     $errormsg = 'There appears to be no support for interlaced images in pdf.';
                 }
             }
 
-            if (!$error && $info['bitDepth'] > 8) {
+            if ( ! $error && $info['bitDepth'] > 8) {
                 $error = 1;
 
                 //debugpng
                 if (defined("DEBUGPNG") && DEBUGPNG) {
-                    print '[addPngFromFile bit depth of 8 or less is supported ' . $file . ']';
+                    print '[addPngFromFile bit depth of 8 or less is supported '.$file.']';
                 }
 
                 $errormsg = 'only bit depth of 8 or less is supported';
             }
 
-            if (!$error) {
+            if ( ! $error) {
                 switch ($info['colorType']) {
                     case 3:
                         $color = 'DeviceRGB';
@@ -6141,7 +6141,7 @@ 
 
                         //debugpng
                         if (defined("DEBUGPNG") && DEBUGPNG) {
-                            print '[addPngFromFile alpha channel not supported: ' . $info['colorType'] . ' ' . $file . ']';
+                            print '[addPngFromFile alpha channel not supported: '.$info['colorType'].' '.$file.']';
                         }
 
                         $errormsg = 'transparency alpha channel not supported, transparency only supported for palette images.';
@@ -6149,7 +6149,7 @@ 
             }
 
             if ($error) {
-                $this->addMessage('PNG error - (' . $file . ') ' . $errormsg);
+                $this->addMessage('PNG error - ('.$file.') '.$errormsg);
 
                 return;
             }
@@ -6218,7 +6218,7 @@ 
         // attempt to add a jpeg image straight from a file, using no GD commands
         // note that this function is unable to operate on a remote file.
 
-        if (!file_exists($img)) {
+        if ( ! file_exists($img)) {
             return;
         }
 
@@ -6286,7 +6286,7 @@ 
 
         } else {
             if ($data == null) {
-                $this->addMessage('addJpegImage_common error - (' . $imgname . ') data not present!');
+                $this->addMessage('addJpegImage_common error - ('.$imgname.') data not present!');
 
                 return;
             }
@@ -6397,7 +6397,7 @@ 
      */
     function setFontFamily($family, $options = '')
     {
-        if (!is_array($options)) {
+        if ( ! is_array($options)) {
             if ($family === 'init') {
                 // set the known family groups
                 // these font families will be used to enable bold and italic markers to be included
@@ -6443,7 +6443,7 @@ 
      */
     function addMessage($message)
     {
-        $this->messages .= $message . "\n";
+        $this->messages .= $message."\n";
     }
 
     /**

vendor/dompdf/dompdf/src/Dompdf.php

Indentation +1401 added lines, -1401 removed lines

@@ -66,1405 +66,1405 @@
  */
 class Dompdf
 {
-    /**
-     * Version string for dompdf
-     *
-     * @var string
-     */
-    private $version = 'dompdf';
-
-    /**
-     * DomDocument representing the HTML document
-     *
-     * @var DOMDocument
-     */
-    private $dom;
-
-    /**
-     * FrameTree derived from the DOM tree
-     *
-     * @var FrameTree
-     */
-    private $tree;
-
-    /**
-     * Stylesheet for the document
-     *
-     * @var Stylesheet
-     */
-    private $css;
-
-    /**
-     * Actual PDF renderer
-     *
-     * @var Canvas
-     */
-    private $canvas;
-
-    /**
-     * Desired paper size ('letter', 'legal', 'A4', etc.)
-     *
-     * @var string|array
-     */
-    private $paperSize;
-
-    /**
-     * Paper orientation ('portrait' or 'landscape')
-     *
-     * @var string
-     */
-    private $paperOrientation = "portrait";
-
-    /**
-     * Callbacks on new page and new element
-     *
-     * @var array
-     */
-    private $callbacks = [];
-
-    /**
-     * Experimental caching capability
-     *
-     * @var string
-     */
-    private $cacheId;
-
-    /**
-     * Base hostname
-     *
-     * Used for relative paths/urls
-     * @var string
-     */
-    private $baseHost = "";
-
-    /**
-     * Absolute base path
-     *
-     * Used for relative paths/urls
-     * @var string
-     */
-    private $basePath = "";
-
-    /**
-     * Protocol used to request file (file://, http://, etc)
-     *
-     * @var string
-     */
-    private $protocol = "";
-
-    /**
-     * The system's locale
-     *
-     * @var string
-     */
-    private $systemLocale = null;
-
-    /**
-     * The system's mbstring internal encoding
-     *
-     * @var string
-     */
-    private $mbstringEncoding = null;
-
-    /**
-     * The system's PCRE JIT configuration
-     *
-     * @var string
-     */
-    private $pcreJit = null;
-
-    /**
-     * The default view of the PDF in the viewer
-     *
-     * @var string
-     */
-    private $defaultView = "Fit";
-
-    /**
-     * The default view options of the PDF in the viewer
-     *
-     * @var array
-     */
-    private $defaultViewOptions = [];
-
-    /**
-     * Tells whether the DOM document is in quirksmode (experimental)
-     *
-     * @var bool
-     */
-    private $quirksmode = false;
-
-    /**
-    * Local file extension whitelist
-    *
-    * File extensions supported by dompdf for local files.
-    *
-    * @var array
-    */
-    private $allowedLocalFileExtensions = ["htm", "html"];
-
-    /**
-     * @var array
-     */
-    private $messages = [];
-
-    /**
-     * @var Options
-     */
-    private $options;
-
-    /**
-     * @var FontMetrics
-     */
-    private $fontMetrics;
-
-    /**
-     * The list of built-in fonts
-     *
-     * @var array
-     * @deprecated
-     */
-    public static $native_fonts = [
-        "courier", "courier-bold", "courier-oblique", "courier-boldoblique",
-        "helvetica", "helvetica-bold", "helvetica-oblique", "helvetica-boldoblique",
-        "times-roman", "times-bold", "times-italic", "times-bolditalic",
-        "symbol", "zapfdinbats"
-    ];
-
-    /**
-     * The list of built-in fonts
-     *
-     * @var array
-     */
-    public static $nativeFonts = [
-        "courier", "courier-bold", "courier-oblique", "courier-boldoblique",
-        "helvetica", "helvetica-bold", "helvetica-oblique", "helvetica-boldoblique",
-        "times-roman", "times-bold", "times-italic", "times-bolditalic",
-        "symbol", "zapfdinbats"
-    ];
-
-    /**
-     * Class constructor
-     *
-     * @param Options|array|null $options
-     */
-    public function __construct($options = null)
-    {
-        if (isset($options) && $options instanceof Options) {
-            $this->setOptions($options);
-        } elseif (is_array($options)) {
-            $this->setOptions(new Options($options));
-        } else {
-            $this->setOptions(new Options());
-        }
-
-        $versionFile = realpath(__DIR__ . '/../VERSION');
-        if (($version = file_get_contents($versionFile)) !== false) {
-            $version = trim($version);
-            if ($version !== '$Format:<%h>$') {
-                $this->version = sprintf('dompdf %s', $version);
-            }
-        }
-
-        $this->setPhpConfig();
-
-        $this->paperSize = $this->options->getDefaultPaperSize();
-        $this->paperOrientation = $this->options->getDefaultPaperOrientation();
-
-        $this->canvas = CanvasFactory::get_instance($this, $this->paperSize, $this->paperOrientation);
-        $this->fontMetrics = new FontMetrics($this->canvas, $this->options);
-        $this->css = new Stylesheet($this);
-
-        $this->restorePhpConfig();
-    }
-
-    /**
-     * Save the system's existing locale, PCRE JIT, and MBString encoding
-     * configuration and configure the system for Dompdf processing
-     */
-    private function setPhpConfig()
-    {
-        if (sprintf('%.1f', 1.0) !== '1.0') {
-            $this->systemLocale = setlocale(LC_NUMERIC, "0");
-            setlocale(LC_NUMERIC, "C");
-        }
-
-        $this->pcreJit = @ini_get('pcre.jit');
-        @ini_set('pcre.jit', '0');
-
-        $this->mbstringEncoding = mb_internal_encoding();
-        mb_internal_encoding('UTF-8');
-    }
-
-    /**
-     * Restore the system's locale configuration
-     */
-    private function restorePhpConfig()
-    {
-        if ($this->systemLocale !== null) {
-            setlocale(LC_NUMERIC, $this->systemLocale);
-            $this->systemLocale = null;
-        }
-
-        if ($this->pcreJit !== null) {
-            @ini_set('pcre.jit', $this->pcreJit);
-            $this->pcreJit = null;
-        }
-
-        if ($this->mbstringEncoding !== null) {
-            mb_internal_encoding($this->mbstringEncoding);
-            $this->mbstringEncoding = null;
-        }
-    }
-
-    /**
-     * @param $file
-     * @deprecated
-     */
-    public function load_html_file($file)
-    {
-        $this->loadHtmlFile($file);
-    }
-
-    /**
-     * Loads an HTML file
-     * Parse errors are stored in the global array _dompdf_warnings.
-     *
-     * @param string $file a filename or url to load
-     * @param string $encoding Encoding of $file
-     *
-     * @throws Exception
-     */
-    public function loadHtmlFile($file, $encoding = null)
-    {
-        $this->setPhpConfig();
-
-        if (!$this->protocol && !$this->baseHost && !$this->basePath) {
-            [$this->protocol, $this->baseHost, $this->basePath] = Helpers::explode_url($file);
-        }
-        $protocol = strtolower($this->protocol);
-        $uri = Helpers::build_url($this->protocol, $this->baseHost, $this->basePath, $file);
-
-        $allowed_protocols = $this->options->getAllowedProtocols();
-        if (!array_key_exists($protocol, $allowed_protocols)) {
-            throw new Exception("Permission denied on $file. The communication protocol is not supported.");
-        }
-
-        if ($protocol === "file://") {
-            $ext = strtolower(pathinfo($uri, PATHINFO_EXTENSION));
-            if (!in_array($ext, $this->allowedLocalFileExtensions)) {
-                throw new Exception("Permission denied on $file: The file extension is forbidden.");
-            }
-        }
-
-        foreach ($allowed_protocols[$protocol]["rules"] as $rule) {
-            [$result, $message] = $rule($uri);
-            if (!$result) {
-                throw new Exception("Error loading $file: $message");
-            }
-        }
-
-        [$contents, $http_response_header] = Helpers::getFileContent($uri, $this->options->getHttpContext());
-        if ($contents === null) {
-            throw new Exception("File '$file' not found.");
-        }
-
-        // See http://the-stickman.com/web-development/php/getting-http-response-headers-when-using-file_get_contents/
-        if (isset($http_response_header)) {
-            foreach ($http_response_header as $_header) {
-                if (preg_match("@Content-Type:\s*[\w/]+;\s*?charset=([^\s]+)@i", $_header, $matches)) {
-                    $encoding = strtoupper($matches[1]);
-                    break;
-                }
-            }
-        }
-
-        $this->restorePhpConfig();
-
-        $this->loadHtml($contents, $encoding);
-    }
-
-    /**
-     * @param string $str
-     * @param string $encoding
-     * @deprecated
-     */
-    public function load_html($str, $encoding = null)
-    {
-        $this->loadHtml($str, $encoding);
-    }
-
-    public function loadDOM($doc, $quirksmode = false) {
-        // Remove #text children nodes in nodes that shouldn't have
-        $tag_names = ["html", "head", "table", "tbody", "thead", "tfoot", "tr"];
-        foreach ($tag_names as $tag_name) {
-            $nodes = $doc->getElementsByTagName($tag_name);
-
-            foreach ($nodes as $node) {
-                self::removeTextNodes($node);
-            }
-        }
-
-        $this->dom = $doc;
-        $this->quirksmode = $quirksmode;
-        $this->tree = new FrameTree($this->dom);
-    }
-
-    /**
-     * Loads an HTML string
-     * Parse errors are stored in the global array _dompdf_warnings.
-     *
-     * @param string $str HTML text to load
-     * @param string $encoding Encoding of $str
-     */
-    public function loadHtml($str, $encoding = null)
-    {
-        $this->setPhpConfig();
-
-        // Determine character encoding when $encoding parameter not used
-        if ($encoding === null) {
-            mb_detect_order('auto');
-            if (($encoding = mb_detect_encoding($str, null, true)) === false) {
-
-                //"auto" is expanded to "ASCII,JIS,UTF-8,EUC-JP,SJIS"
-                $encoding = "auto";
-            }
-        }
-
-        if (in_array(strtoupper($encoding), array('UTF-8','UTF8')) === false) {
-            $str = mb_convert_encoding($str, 'UTF-8', $encoding);
-
-            //Update encoding after converting
-            $encoding = 'UTF-8';
-        }
-
-        $metatags = [
-            '@<meta\s+http-equiv="Content-Type"\s+content="(?:[\w/]+)(?:;\s*?charset=([^\s"]+))?@i',
-            '@<meta\s+content="(?:[\w/]+)(?:;\s*?charset=([^\s"]+))"?\s+http-equiv="Content-Type"@i',
-            '@<meta [^>]*charset\s*=\s*["\']?\s*([^"\' ]+)@i',
-        ];
-        foreach ($metatags as $metatag) {
-            if (preg_match($metatag, $str, $matches)) {
-                if (isset($matches[1]) && in_array($matches[1], mb_list_encodings())) {
-                    $document_encoding = $matches[1];
-                    break;
-                }
-            }
-        }
-        if (isset($document_encoding) && in_array(strtoupper($document_encoding), ['UTF-8','UTF8']) === false) {
-            $str = preg_replace('/charset=([^\s"]+)/i', 'charset=UTF-8', $str);
-        } elseif (isset($document_encoding) === false && strpos($str, '<head>') !== false) {
-            $str = str_replace('<head>', '<head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">', $str);
-        } elseif (isset($document_encoding) === false) {
-            $str = '<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">' . $str;
-        }
-
-        // remove BOM mark from UTF-8, it's treated as document text by DOMDocument
-        // FIXME: roll this into the encoding detection using UTF-8/16/32 BOM (http://us2.php.net/manual/en/function.mb-detect-encoding.php#91051)?
-        if (substr($str, 0, 3) == chr(0xEF) . chr(0xBB) . chr(0xBF)) {
-            $str = substr($str, 3);
-        }
-
-        // Store parsing warnings as messages
-        set_error_handler([Helpers::class, 'record_warnings']);
-
-        try {
-            // @todo Take the quirksmode into account
-            // https://quirks.spec.whatwg.org/
-            // http://hsivonen.iki.fi/doctype/
-            $quirksmode = false;
-
-            $html5 = new HTML5(['encoding' => $encoding, 'disable_html_ns' => true]);
-            $dom = $html5->loadHTML($str);
-
-            // extra step to normalize the HTML document structure
-            // see Masterminds/html5-php#166
-            $doc = new DOMDocument("1.0", $encoding);
-            $doc->preserveWhiteSpace = true;
-            $doc->loadHTML($html5->saveHTML($dom), LIBXML_NOWARNING | LIBXML_NOERROR);
-
-            $this->loadDOM($doc, $quirksmode);
-        } finally {
-            restore_error_handler();
-            $this->restorePhpConfig();
-        }
-    }
-
-    /**
-     * @param DOMNode $node
-     * @deprecated
-     */
-    public static function remove_text_nodes(DOMNode $node)
-    {
-        self::removeTextNodes($node);
-    }
-
-    /**
-     * @param DOMNode $node
-     */
-    public static function removeTextNodes(DOMNode $node)
-    {
-        $children = [];
-        for ($i = 0; $i < $node->childNodes->length; $i++) {
-            $child = $node->childNodes->item($i);
-            if ($child->nodeName === "#text") {
-                $children[] = $child;
-            }
-        }
-
-        foreach ($children as $child) {
-            $node->removeChild($child);
-        }
-    }
-
-    /**
-     * Builds the {@link FrameTree}, loads any CSS and applies the styles to
-     * the {@link FrameTree}
-     */
-    private function processHtml()
-    {
-        $this->tree->build_tree();
-
-        $this->css->load_css_file($this->css->getDefaultStylesheet(), Stylesheet::ORIG_UA);
-
-        $acceptedmedia = Stylesheet::$ACCEPTED_GENERIC_MEDIA_TYPES;
-        $acceptedmedia[] = $this->options->getDefaultMediaType();
-
-        // <base href="" />
-        /** @var \DOMElement|null */
-        $baseNode = $this->dom->getElementsByTagName("base")->item(0);
-        $baseHref = $baseNode ? $baseNode->getAttribute("href") : "";
-        if ($baseHref !== "") {
-            [$this->protocol, $this->baseHost, $this->basePath] = Helpers::explode_url($baseHref);
-        }
-
-        // Set the base path of the Stylesheet to that of the file being processed
-        $this->css->set_protocol($this->protocol);
-        $this->css->set_host($this->baseHost);
-        $this->css->set_base_path($this->basePath);
-
-        // Get all the stylesheets so that they are processed in document order
-        $xpath = new DOMXPath($this->dom);
-        $stylesheets = $xpath->query("//*[name() = 'link' or name() = 'style']");
-
-        /** @var \DOMElement $tag */
-        foreach ($stylesheets as $tag) {
-            switch (strtolower($tag->nodeName)) {
-                // load <link rel="STYLESHEET" ... /> tags
-                case "link":
-                    if (mb_strtolower(stripos($tag->getAttribute("rel"), "stylesheet") !== false) || // may be "appendix stylesheet"
-                        mb_strtolower($tag->getAttribute("type")) === "text/css"
-                    ) {
-                        //Check if the css file is for an accepted media type
-                        //media not given then always valid
-                        $formedialist = preg_split("/[\s\n,]/", $tag->getAttribute("media"), -1, PREG_SPLIT_NO_EMPTY);
-                        if (count($formedialist) > 0) {
-                            $accept = false;
-                            foreach ($formedialist as $type) {
-                                if (in_array(mb_strtolower(trim($type)), $acceptedmedia)) {
-                                    $accept = true;
-                                    break;
-                                }
-                            }
-
-                            if (!$accept) {
-                                //found at least one mediatype, but none of the accepted ones
-                                //Skip this css file.
-                                break;
-                            }
-                        }
-
-                        $url = $tag->getAttribute("href");
-                        $url = Helpers::build_url($this->protocol, $this->baseHost, $this->basePath, $url);
-
-                        if ($url !== null) {
-                            $this->css->load_css_file($url, Stylesheet::ORIG_AUTHOR);
-                        }
-                    }
-                    break;
-
-                // load <style> tags
-                case "style":
-                    // Accept all <style> tags by default (note this is contrary to W3C
-                    // HTML 4.0 spec:
-                    // http://www.w3.org/TR/REC-html40/present/styles.html#adef-media
-                    // which states that the default media type is 'screen'
-                    if ($tag->hasAttributes() &&
-                        ($media = $tag->getAttribute("media")) &&
-                        !in_array($media, $acceptedmedia)
-                    ) {
-                        break;
-                    }
-
-                    $css = "";
-                    if ($tag->hasChildNodes()) {
-                        $child = $tag->firstChild;
-                        while ($child) {
-                            $css .= $child->nodeValue; // Handle <style><!-- blah --></style>
-                            $child = $child->nextSibling;
-                        }
-                    } else {
-                        $css = $tag->nodeValue;
-                    }
-
-                    // Set the base path of the Stylesheet to that of the file being processed
-                    $this->css->set_protocol($this->protocol);
-                    $this->css->set_host($this->baseHost);
-                    $this->css->set_base_path($this->basePath);
-
-                    $this->css->load_css($css, Stylesheet::ORIG_AUTHOR);
-                    break;
-            }
-
-            // Set the base path of the Stylesheet to that of the file being processed
-            $this->css->set_protocol($this->protocol);
-            $this->css->set_host($this->baseHost);
-            $this->css->set_base_path($this->basePath);
-        }
-    }
-
-    /**
-     * @param string $cacheId
-     * @deprecated
-     */
-    public function enable_caching($cacheId)
-    {
-        $this->enableCaching($cacheId);
-    }
-
-    /**
-     * Enable experimental caching capability
-     *
-     * @param string $cacheId
-     */
-    public function enableCaching($cacheId)
-    {
-        $this->cacheId = $cacheId;
-    }
-
-    /**
-     * @param string $value
-     * @return bool
-     * @deprecated
-     */
-    public function parse_default_view($value)
-    {
-        return $this->parseDefaultView($value);
-    }
-
-    /**
-     * @param string $value
-     * @return bool
-     */
-    public function parseDefaultView($value)
-    {
-        $valid = ["XYZ", "Fit", "FitH", "FitV", "FitR", "FitB", "FitBH", "FitBV"];
-
-        $options = preg_split("/\s*,\s*/", trim($value));
-        $defaultView = array_shift($options);
-
-        if (!in_array($defaultView, $valid)) {
-            return false;
-        }
-
-        $this->setDefaultView($defaultView, $options);
-        return true;
-    }
-
-    /**
-     * Renders the HTML to PDF
-     */
-    public function render()
-    {
-        $this->setPhpConfig();
-
-        $logOutputFile = $this->options->getLogOutputFile();
-        if ($logOutputFile) {
-            if (!file_exists($logOutputFile) && is_writable(dirname($logOutputFile))) {
-                touch($logOutputFile);
-            }
-
-            $startTime = microtime(true);
-            if (is_writable($logOutputFile)) {
-                ob_start();
-            }
-        }
-
-        $this->processHtml();
-
-        $this->css->apply_styles($this->tree);
-
-        // @page style rules : size, margins
-        $pageStyles = $this->css->get_page_styles();
-        $basePageStyle = $pageStyles["base"];
-        unset($pageStyles["base"]);
-
-        foreach ($pageStyles as $pageStyle) {
-            $pageStyle->inherit($basePageStyle);
-        }
-
-        // Set paper size if defined via CSS
-        if (is_array($basePageStyle->size)) {
-            [$width, $height] = $basePageStyle->size;
-            $this->setPaper([0, 0, $width, $height]);
-        }
-
-        // Create a new canvas instance if the current one does not match the
-        // desired paper size
-        $canvasWidth = $this->canvas->get_width();
-        $canvasHeight = $this->canvas->get_height();
-        $size = $this->getPaperSize();
-
-        if ($canvasWidth !== $size[2] || $canvasHeight !== $size[3]) {
-            $this->canvas = CanvasFactory::get_instance($this, $this->paperSize, $this->paperOrientation);
-            $this->fontMetrics->setCanvas($this->canvas);
-        }
-
-        $canvas = $this->canvas;
-
-        $root_frame = $this->tree->get_root();
-        $root = Factory::decorate_root($root_frame, $this);
-        foreach ($this->tree as $frame) {
-            if ($frame === $root_frame) {
-                continue;
-            }
-            Factory::decorate_frame($frame, $this, $root);
-        }
-
-        // Add meta information
-        $title = $this->dom->getElementsByTagName("title");
-        if ($title->length) {
-            $canvas->add_info("Title", trim($title->item(0)->nodeValue));
-        }
-
-        $metas = $this->dom->getElementsByTagName("meta");
-        $labels = [
-            "author" => "Author",
-            "keywords" => "Keywords",
-            "description" => "Subject",
-        ];
-        /** @var \DOMElement $meta */
-        foreach ($metas as $meta) {
-            $name = mb_strtolower($meta->getAttribute("name"));
-            $value = trim($meta->getAttribute("content"));
-
-            if (isset($labels[$name])) {
-                $canvas->add_info($labels[$name], $value);
-                continue;
-            }
-
-            if ($name === "dompdf.view" && $this->parseDefaultView($value)) {
-                $canvas->set_default_view($this->defaultView, $this->defaultViewOptions);
-            }
-        }
-
-        $root->set_containing_block(0, 0, $canvas->get_width(), $canvas->get_height());
-        $root->set_renderer(new Renderer($this));
-
-        // This is where the magic happens:
-        $root->reflow();
-
-        if (isset($this->callbacks["end_document"])) {
-            $fs = $this->callbacks["end_document"];
-
-            foreach ($fs as $f) {
-                $canvas->page_script($f);
-            }
-        }
-
-        // Clean up cached images
-        if (!$this->options->getDebugKeepTemp()) {
-            Cache::clear($this->options->getDebugPng());
-        }
-
-        global $_dompdf_warnings, $_dompdf_show_warnings;
-        if ($_dompdf_show_warnings && isset($_dompdf_warnings)) {
-            echo '<b>Dompdf Warnings</b><br><pre>';
-            foreach ($_dompdf_warnings as $msg) {
-                echo $msg . "\n";
-            }
-
-            if ($canvas instanceof CPDF) {
-                echo $canvas->get_cpdf()->messages;
-            }
-            echo '</pre>';
-            flush();
-        }
-
-        if ($logOutputFile && is_writable($logOutputFile)) {
-            $this->writeLog($logOutputFile, $startTime);
-            ob_end_clean();
-        }
-
-        $this->restorePhpConfig();
-    }
-
-    /**
-     * Writes the output buffer in the log file
-     *
-     * @param string $logOutputFile
-     * @param float $startTime
-     */
-    private function writeLog(string $logOutputFile, float $startTime): void
-    {
-        $frames = Frame::$ID_COUNTER;
-        $memory = memory_get_peak_usage(true) / 1024;
-        $time = (microtime(true) - $startTime) * 1000;
-
-        $out = sprintf(
-            "<span style='color: #000' title='Frames'>%6d</span>" .
-            "<span style='color: #009' title='Memory'>%10.2f KB</span>" .
-            "<span style='color: #900' title='Time'>%10.2f ms</span>" .
-            "<span  title='Quirksmode'>  " .
-            ($this->quirksmode ? "<span style='color: #d00'> ON</span>" : "<span style='color: #0d0'>OFF</span>") .
-            "</span><br />", $frames, $memory, $time);
-
-        $out .= ob_get_contents();
-        ob_clean();
-
-        file_put_contents($logOutputFile, $out);
-    }
-
-    /**
-     * Add meta information to the PDF after rendering.
-     *
-     * @deprecated
-     */
-    public function add_info($label, $value)
-    {
-        $this->addInfo($label, $value);
-    }
-
-    /**
-     * Add meta information to the PDF after rendering.
-     *
-     * @param string $label Label of the value (Creator, Producer, etc.)
-     * @param string $value The text to set
-     */
-    public function addInfo(string $label, string $value): void
-    {
-        $this->canvas->add_info($label, $value);
-    }
-
-    /**
-     * Streams the PDF to the client.
-     *
-     * The file will open a download dialog by default. The options
-     * parameter controls the output. Accepted options (array keys) are:
-     *
-     * 'compress' = > 1 (=default) or 0:
-     *   Apply content stream compression
-     *
-     * 'Attachment' => 1 (=default) or 0:
-     *   Set the 'Content-Disposition:' HTTP header to 'attachment'
-     *   (thereby causing the browser to open a download dialog)
-     *
-     * @param string $filename the name of the streamed file
-     * @param array $options header options (see above)
-     */
-    public function stream($filename = "document.pdf", $options = [])
-    {
-        $this->setPhpConfig();
-
-        $this->canvas->stream($filename, $options);
-
-        $this->restorePhpConfig();
-    }
-
-    /**
-     * Returns the PDF as a string.
-     *
-     * The options parameter controls the output. Accepted options are:
-     *
-     * 'compress' = > 1 or 0 - apply content stream compression, this is
-     *    on (1) by default
-     *
-     * @param array $options options (see above)
-     *
-     * @return string|null
-     */
-    public function output($options = [])
-    {
-        $this->setPhpConfig();
-
-        $output = $this->canvas->output($options);
-
-        $this->restorePhpConfig();
-
-        return $output;
-    }
-
-    /**
-     * @return string
-     * @deprecated
-     */
-    public function output_html()
-    {
-        return $this->outputHtml();
-    }
-
-    /**
-     * Returns the underlying HTML document as a string
-     *
-     * @return string
-     */
-    public function outputHtml()
-    {
-        return $this->dom->saveHTML();
-    }
-
-    /**
-     * Get the dompdf option value
-     *
-     * @param string $key
-     * @return mixed
-     * @deprecated
-     */
-    public function get_option($key)
-    {
-        return $this->options->get($key);
-    }
-
-    /**
-     * @param string $key
-     * @param mixed $value
-     * @return $this
-     * @deprecated
-     */
-    public function set_option($key, $value)
-    {
-        $this->options->set($key, $value);
-        return $this;
-    }
-
-    /**
-     * @param array $options
-     * @return $this
-     * @deprecated
-     */
-    public function set_options(array $options)
-    {
-        $this->options->set($options);
-        return $this;
-    }
-
-    /**
-     * @param string $size
-     * @param string $orientation
-     * @deprecated
-     */
-    public function set_paper($size, $orientation = "portrait")
-    {
-        $this->setPaper($size, $orientation);
-    }
-
-    /**
-     * Sets the paper size & orientation
-     *
-     * @param string|float[] $size 'letter', 'legal', 'A4', etc. {@link Dompdf\Adapter\CPDF::$PAPER_SIZES}
-     * @param string $orientation 'portrait' or 'landscape'
-     * @return $this
-     */
-    public function setPaper($size, $orientation = "portrait")
-    {
-        $this->paperSize = $size;
-        $this->paperOrientation = $orientation;
-        return $this;
-    }
-
-    /**
-     * Gets the paper size
-     *
-     * @return float[] A four-element float array
-     */
-    public function getPaperSize()
-    {
-        $paper = $this->paperSize;
-        $orientation = $this->paperOrientation;
-
-        if (is_array($paper)) {
-            $size = array_map("floatval", $paper);
-        } else {
-            $paper = strtolower($paper);
-            $size = CPDF::$PAPER_SIZES[$paper] ?? CPDF::$PAPER_SIZES["letter"];
-        }
-
-        if (strtolower($orientation) === "landscape") {
-            [$size[2], $size[3]] = [$size[3], $size[2]];
-        }
-
-        return $size;
-    }
-
-    /**
-     * Gets the paper orientation
-     *
-     * @return string Either "portrait" or "landscape"
-     */
-    public function getPaperOrientation()
-    {
-        return $this->paperOrientation;
-    }
-
-    /**
-     * @param FrameTree $tree
-     * @return $this
-     */
-    public function setTree(FrameTree $tree)
-    {
-        $this->tree = $tree;
-        return $this;
-    }
-
-    /**
-     * @return FrameTree
-     * @deprecated
-     */
-    public function get_tree()
-    {
-        return $this->getTree();
-    }
-
-    /**
-     * Returns the underlying {@link FrameTree} object
-     *
-     * @return FrameTree
-     */
-    public function getTree()
-    {
-        return $this->tree;
-    }
-
-    /**
-     * @param string $protocol
-     * @return $this
-     * @deprecated
-     */
-    public function set_protocol($protocol)
-    {
-        return $this->setProtocol($protocol);
-    }
-
-    /**
-     * Sets the protocol to use
-     * FIXME validate these
-     *
-     * @param string $protocol
-     * @return $this
-     */
-    public function setProtocol(string $protocol)
-    {
-        $this->protocol = $protocol;
-        return $this;
-    }
-
-    /**
-     * @return string
-     * @deprecated
-     */
-    public function get_protocol()
-    {
-        return $this->getProtocol();
-    }
-
-    /**
-     * Returns the protocol in use
-     *
-     * @return string
-     */
-    public function getProtocol()
-    {
-        return $this->protocol;
-    }
-
-    /**
-     * @param string $host
-     * @deprecated
-     */
-    public function set_host($host)
-    {
-        $this->setBaseHost($host);
-    }
-
-    /**
-     * Sets the base hostname
-     *
-     * @param string $baseHost
-     * @return $this
-     */
-    public function setBaseHost(string $baseHost)
-    {
-        $this->baseHost = $baseHost;
-        return $this;
-    }
-
-    /**
-     * @return string
-     * @deprecated
-     */
-    public function get_host()
-    {
-        return $this->getBaseHost();
-    }
-
-    /**
-     * Returns the base hostname
-     *
-     * @return string
-     */
-    public function getBaseHost()
-    {
-        return $this->baseHost;
-    }
-
-    /**
-     * Sets the base path
-     *
-     * @param string $path
-     * @deprecated
-     */
-    public function set_base_path($path)
-    {
-        $this->setBasePath($path);
-    }
-
-    /**
-     * Sets the base path
-     *
-     * @param string $basePath
-     * @return $this
-     */
-    public function setBasePath(string $basePath)
-    {
-        $this->basePath = $basePath;
-        return $this;
-    }
-
-    /**
-     * @return string
-     * @deprecated
-     */
-    public function get_base_path()
-    {
-        return $this->getBasePath();
-    }
-
-    /**
-     * Returns the base path
-     *
-     * @return string
-     */
-    public function getBasePath()
-    {
-        return $this->basePath;
-    }
-
-    /**
-     * @param string $default_view The default document view
-     * @param array $options The view's options
-     * @return $this
-     * @deprecated
-     */
-    public function set_default_view($default_view, $options)
-    {
-        return $this->setDefaultView($default_view, $options);
-    }
-
-    /**
-     * Sets the default view
-     *
-     * @param string $defaultView The default document view
-     * @param array $options The view's options
-     * @return $this
-     */
-    public function setDefaultView($defaultView, $options)
-    {
-        $this->defaultView = $defaultView;
-        $this->defaultViewOptions = $options;
-        return $this;
-    }
-
-    /**
-     * @param resource $http_context
-     * @return $this
-     * @deprecated
-     */
-    public function set_http_context($http_context)
-    {
-        return $this->setHttpContext($http_context);
-    }
-
-    /**
-     * Sets the HTTP context
-     *
-     * @param resource|array $httpContext
-     * @return $this
-     */
-    public function setHttpContext($httpContext)
-    {
-        $this->options->setHttpContext($httpContext);
-        return $this;
-    }
-
-    /**
-     * @return resource
-     * @deprecated
-     */
-    public function get_http_context()
-    {
-        return $this->getHttpContext();
-    }
-
-    /**
-     * Returns the HTTP context
-     *
-     * @return resource
-     */
-    public function getHttpContext()
-    {
-        return $this->options->getHttpContext();
-    }
-
-    /**
-     * Set a custom `Canvas` instance to render the document to.
-     *
-     * Be aware that the instance will be replaced on render if the document
-     * defines a paper size different from the canvas.
-     *
-     * @param Canvas $canvas
-     * @return $this
-     */
-    public function setCanvas(Canvas $canvas)
-    {
-        $this->canvas = $canvas;
-        return $this;
-    }
-
-    /**
-     * @return Canvas
-     * @deprecated
-     */
-    public function get_canvas()
-    {
-        return $this->getCanvas();
-    }
-
-    /**
-     * Return the underlying Canvas instance (e.g. Dompdf\Adapter\CPDF, Dompdf\Adapter\GD)
-     *
-     * @return Canvas
-     */
-    public function getCanvas()
-    {
-        return $this->canvas;
-    }
-
-    /**
-     * @param Stylesheet $css
-     * @return $this
-     */
-    public function setCss(Stylesheet $css)
-    {
-        $this->css = $css;
-        return $this;
-    }
-
-    /**
-     * @return Stylesheet
-     * @deprecated
-     */
-    public function get_css()
-    {
-        return $this->getCss();
-    }
-
-    /**
-     * Returns the stylesheet
-     *
-     * @return Stylesheet
-     */
-    public function getCss()
-    {
-        return $this->css;
-    }
-
-    /**
-     * @param DOMDocument $dom
-     * @return $this
-     */
-    public function setDom(DOMDocument $dom)
-    {
-        $this->dom = $dom;
-        return $this;
-    }
-
-    /**
-     * @return DOMDocument
-     * @deprecated
-     */
-    public function get_dom()
-    {
-        return $this->getDom();
-    }
-
-    /**
-     * @return DOMDocument
-     */
-    public function getDom()
-    {
-        return $this->dom;
-    }
-
-    /**
-     * @param Options $options
-     * @return $this
-     */
-    public function setOptions(Options $options)
-    {
-        // For backwards compatibility
-        if ($this->options && $this->options->getHttpContext() && !$options->getHttpContext()) {
-            $options->setHttpContext($this->options->getHttpContext());
-        }
-
-        $this->options = $options;
-        $fontMetrics = $this->fontMetrics;
-        if (isset($fontMetrics)) {
-            $fontMetrics->setOptions($options);
-        }
-        return $this;
-    }
-
-    /**
-     * @return Options
-     */
-    public function getOptions()
-    {
-        return $this->options;
-    }
-
-    /**
-     * @return array
-     * @deprecated
-     */
-    public function get_callbacks()
-    {
-        return $this->getCallbacks();
-    }
-
-    /**
-     * Returns the callbacks array
-     *
-     * @return array
-     */
-    public function getCallbacks()
-    {
-        return $this->callbacks;
-    }
-
-    /**
-     * @param array $callbacks the set of callbacks to set
-     * @return $this
-     * @deprecated
-     */
-    public function set_callbacks($callbacks)
-    {
-        return $this->setCallbacks($callbacks);
-    }
-
-    /**
-     * Define callbacks that allow modifying the document during render.
-     *
-     * The callbacks array should contain arrays with `event` set to a callback
-     * event name and `f` set to a function or any other callable.
-     *
-     * The available callback events are:
-     * * `begin_page_reflow`: called before page reflow
-     * * `begin_frame`: called before a frame is rendered
-     * * `end_frame`: called after frame rendering is complete
-     * * `begin_page_render`: called before a page is rendered
-     * * `end_page_render`: called after page rendering is complete
-     * * `end_document`: called for every page after rendering is complete
-     *
-     * The function `f` receives three arguments `Frame $frame`, `Canvas $canvas`,
-     * and `FontMetrics $fontMetrics` for all events but `end_document`. For
-     * `end_document`, the function receives four arguments `int $pageNumber`,
-     * `int $pageCount`, `Canvas $canvas`, and `FontMetrics $fontMetrics` instead.
-     *
-     * @param array $callbacks The set of callbacks to set.
-     * @return $this
-     */
-    public function setCallbacks(array $callbacks): self
-    {
-        $this->callbacks = [];
-
-        foreach ($callbacks as $c) {
-            if (is_array($c) && isset($c["event"]) && isset($c["f"])) {
-                $event = $c["event"];
-                $f = $c["f"];
-                if (is_string($event) && is_callable($f)) {
-                    $this->callbacks[$event][] = $f;
-                }
-            }
-        }
-
-        return $this;
-    }
-
-    /**
-     * @return boolean
-     * @deprecated
-     */
-    public function get_quirksmode()
-    {
-        return $this->getQuirksmode();
-    }
-
-    /**
-     * Get the quirks mode
-     *
-     * @return boolean true if quirks mode is active
-     */
-    public function getQuirksmode()
-    {
-        return $this->quirksmode;
-    }
-
-    /**
-     * @param FontMetrics $fontMetrics
-     * @return $this
-     */
-    public function setFontMetrics(FontMetrics $fontMetrics)
-    {
-        $this->fontMetrics = $fontMetrics;
-        return $this;
-    }
-
-    /**
-     * @return FontMetrics
-     */
-    public function getFontMetrics()
-    {
-        return $this->fontMetrics;
-    }
-
-    /**
-     * PHP5 overloaded getter
-     * Along with {@link Dompdf::__set()} __get() provides access to all
-     * properties directly.  Typically __get() is not called directly outside
-     * of this class.
-     *
-     * @param string $prop
-     *
-     * @throws Exception
-     * @return mixed
-     */
-    function __get($prop)
-    {
-        switch ($prop) {
-            case 'version':
-                return $this->version;
-            default:
-                throw new Exception('Invalid property: ' . $prop);
-        }
-    }
+	/**
+	 * Version string for dompdf
+	 *
+	 * @var string
+	 */
+	private $version = 'dompdf';
+
+	/**
+	 * DomDocument representing the HTML document
+	 *
+	 * @var DOMDocument
+	 */
+	private $dom;
+
+	/**
+	 * FrameTree derived from the DOM tree
+	 *
+	 * @var FrameTree
+	 */
+	private $tree;
+
+	/**
+	 * Stylesheet for the document
+	 *
+	 * @var Stylesheet
+	 */
+	private $css;
+
+	/**
+	 * Actual PDF renderer
+	 *
+	 * @var Canvas
+	 */
+	private $canvas;
+
+	/**
+	 * Desired paper size ('letter', 'legal', 'A4', etc.)
+	 *
+	 * @var string|array
+	 */
+	private $paperSize;
+
+	/**
+	 * Paper orientation ('portrait' or 'landscape')
+	 *
+	 * @var string
+	 */
+	private $paperOrientation = "portrait";
+
+	/**
+	 * Callbacks on new page and new element
+	 *
+	 * @var array
+	 */
+	private $callbacks = [];
+
+	/**
+	 * Experimental caching capability
+	 *
+	 * @var string
+	 */
+	private $cacheId;
+
+	/**
+	 * Base hostname
+	 *
+	 * Used for relative paths/urls
+	 * @var string
+	 */
+	private $baseHost = "";
+
+	/**
+	 * Absolute base path
+	 *
+	 * Used for relative paths/urls
+	 * @var string
+	 */
+	private $basePath = "";
+
+	/**
+	 * Protocol used to request file (file://, http://, etc)
+	 *
+	 * @var string
+	 */
+	private $protocol = "";
+
+	/**
+	 * The system's locale
+	 *
+	 * @var string
+	 */
+	private $systemLocale = null;
+
+	/**
+	 * The system's mbstring internal encoding
+	 *
+	 * @var string
+	 */
+	private $mbstringEncoding = null;
+
+	/**
+	 * The system's PCRE JIT configuration
+	 *
+	 * @var string
+	 */
+	private $pcreJit = null;
+
+	/**
+	 * The default view of the PDF in the viewer
+	 *
+	 * @var string
+	 */
+	private $defaultView = "Fit";
+
+	/**
+	 * The default view options of the PDF in the viewer
+	 *
+	 * @var array
+	 */
+	private $defaultViewOptions = [];
+
+	/**
+	 * Tells whether the DOM document is in quirksmode (experimental)
+	 *
+	 * @var bool
+	 */
+	private $quirksmode = false;
+
+	/**
+	 * Local file extension whitelist
+	 *
+	 * File extensions supported by dompdf for local files.
+	 *
+	 * @var array
+	 */
+	private $allowedLocalFileExtensions = ["htm", "html"];
+
+	/**
+	 * @var array
+	 */
+	private $messages = [];
+
+	/**
+	 * @var Options
+	 */
+	private $options;
+
+	/**
+	 * @var FontMetrics
+	 */
+	private $fontMetrics;
+
+	/**
+	 * The list of built-in fonts
+	 *
+	 * @var array
+	 * @deprecated
+	 */
+	public static $native_fonts = [
+		"courier", "courier-bold", "courier-oblique", "courier-boldoblique",
+		"helvetica", "helvetica-bold", "helvetica-oblique", "helvetica-boldoblique",
+		"times-roman", "times-bold", "times-italic", "times-bolditalic",
+		"symbol", "zapfdinbats"
+	];
+
+	/**
+	 * The list of built-in fonts
+	 *
+	 * @var array
+	 */
+	public static $nativeFonts = [
+		"courier", "courier-bold", "courier-oblique", "courier-boldoblique",
+		"helvetica", "helvetica-bold", "helvetica-oblique", "helvetica-boldoblique",
+		"times-roman", "times-bold", "times-italic", "times-bolditalic",
+		"symbol", "zapfdinbats"
+	];
+
+	/**
+	 * Class constructor
+	 *
+	 * @param Options|array|null $options
+	 */
+	public function __construct($options = null)
+	{
+		if (isset($options) && $options instanceof Options) {
+			$this->setOptions($options);
+		} elseif (is_array($options)) {
+			$this->setOptions(new Options($options));
+		} else {
+			$this->setOptions(new Options());
+		}
+
+		$versionFile = realpath(__DIR__ . '/../VERSION');
+		if (($version = file_get_contents($versionFile)) !== false) {
+			$version = trim($version);
+			if ($version !== '$Format:<%h>$') {
+				$this->version = sprintf('dompdf %s', $version);
+			}
+		}
+
+		$this->setPhpConfig();
+
+		$this->paperSize = $this->options->getDefaultPaperSize();
+		$this->paperOrientation = $this->options->getDefaultPaperOrientation();
+
+		$this->canvas = CanvasFactory::get_instance($this, $this->paperSize, $this->paperOrientation);
+		$this->fontMetrics = new FontMetrics($this->canvas, $this->options);
+		$this->css = new Stylesheet($this);
+
+		$this->restorePhpConfig();
+	}
+
+	/**
+	 * Save the system's existing locale, PCRE JIT, and MBString encoding
+	 * configuration and configure the system for Dompdf processing
+	 */
+	private function setPhpConfig()
+	{
+		if (sprintf('%.1f', 1.0) !== '1.0') {
+			$this->systemLocale = setlocale(LC_NUMERIC, "0");
+			setlocale(LC_NUMERIC, "C");
+		}
+
+		$this->pcreJit = @ini_get('pcre.jit');
+		@ini_set('pcre.jit', '0');
+
+		$this->mbstringEncoding = mb_internal_encoding();
+		mb_internal_encoding('UTF-8');
+	}
+
+	/**
+	 * Restore the system's locale configuration
+	 */
+	private function restorePhpConfig()
+	{
+		if ($this->systemLocale !== null) {
+			setlocale(LC_NUMERIC, $this->systemLocale);
+			$this->systemLocale = null;
+		}
+
+		if ($this->pcreJit !== null) {
+			@ini_set('pcre.jit', $this->pcreJit);
+			$this->pcreJit = null;
+		}
+
+		if ($this->mbstringEncoding !== null) {
+			mb_internal_encoding($this->mbstringEncoding);
+			$this->mbstringEncoding = null;
+		}
+	}
+
+	/**
+	 * @param $file
+	 * @deprecated
+	 */
+	public function load_html_file($file)
+	{
+		$this->loadHtmlFile($file);
+	}
+
+	/**
+	 * Loads an HTML file
+	 * Parse errors are stored in the global array _dompdf_warnings.
+	 *
+	 * @param string $file a filename or url to load
+	 * @param string $encoding Encoding of $file
+	 *
+	 * @throws Exception
+	 */
+	public function loadHtmlFile($file, $encoding = null)
+	{
+		$this->setPhpConfig();
+
+		if (!$this->protocol && !$this->baseHost && !$this->basePath) {
+			[$this->protocol, $this->baseHost, $this->basePath] = Helpers::explode_url($file);
+		}
+		$protocol = strtolower($this->protocol);
+		$uri = Helpers::build_url($this->protocol, $this->baseHost, $this->basePath, $file);
+
+		$allowed_protocols = $this->options->getAllowedProtocols();
+		if (!array_key_exists($protocol, $allowed_protocols)) {
+			throw new Exception("Permission denied on $file. The communication protocol is not supported.");
+		}
+
+		if ($protocol === "file://") {
+			$ext = strtolower(pathinfo($uri, PATHINFO_EXTENSION));
+			if (!in_array($ext, $this->allowedLocalFileExtensions)) {
+				throw new Exception("Permission denied on $file: The file extension is forbidden.");
+			}
+		}
+
+		foreach ($allowed_protocols[$protocol]["rules"] as $rule) {
+			[$result, $message] = $rule($uri);
+			if (!$result) {
+				throw new Exception("Error loading $file: $message");
+			}
+		}
+
+		[$contents, $http_response_header] = Helpers::getFileContent($uri, $this->options->getHttpContext());
+		if ($contents === null) {
+			throw new Exception("File '$file' not found.");
+		}
+
+		// See http://the-stickman.com/web-development/php/getting-http-response-headers-when-using-file_get_contents/
+		if (isset($http_response_header)) {
+			foreach ($http_response_header as $_header) {
+				if (preg_match("@Content-Type:\s*[\w/]+;\s*?charset=([^\s]+)@i", $_header, $matches)) {
+					$encoding = strtoupper($matches[1]);
+					break;
+				}
+			}
+		}
+
+		$this->restorePhpConfig();
+
+		$this->loadHtml($contents, $encoding);
+	}
+
+	/**
+	 * @param string $str
+	 * @param string $encoding
+	 * @deprecated
+	 */
+	public function load_html($str, $encoding = null)
+	{
+		$this->loadHtml($str, $encoding);
+	}
+
+	public function loadDOM($doc, $quirksmode = false) {
+		// Remove #text children nodes in nodes that shouldn't have
+		$tag_names = ["html", "head", "table", "tbody", "thead", "tfoot", "tr"];
+		foreach ($tag_names as $tag_name) {
+			$nodes = $doc->getElementsByTagName($tag_name);
+
+			foreach ($nodes as $node) {
+				self::removeTextNodes($node);
+			}
+		}
+
+		$this->dom = $doc;
+		$this->quirksmode = $quirksmode;
+		$this->tree = new FrameTree($this->dom);
+	}
+
+	/**
+	 * Loads an HTML string
+	 * Parse errors are stored in the global array _dompdf_warnings.
+	 *
+	 * @param string $str HTML text to load
+	 * @param string $encoding Encoding of $str
+	 */
+	public function loadHtml($str, $encoding = null)
+	{
+		$this->setPhpConfig();
+
+		// Determine character encoding when $encoding parameter not used
+		if ($encoding === null) {
+			mb_detect_order('auto');
+			if (($encoding = mb_detect_encoding($str, null, true)) === false) {
+
+				//"auto" is expanded to "ASCII,JIS,UTF-8,EUC-JP,SJIS"
+				$encoding = "auto";
+			}
+		}
+
+		if (in_array(strtoupper($encoding), array('UTF-8','UTF8')) === false) {
+			$str = mb_convert_encoding($str, 'UTF-8', $encoding);
+
+			//Update encoding after converting
+			$encoding = 'UTF-8';
+		}
+
+		$metatags = [
+			'@<meta\s+http-equiv="Content-Type"\s+content="(?:[\w/]+)(?:;\s*?charset=([^\s"]+))?@i',
+			'@<meta\s+content="(?:[\w/]+)(?:;\s*?charset=([^\s"]+))"?\s+http-equiv="Content-Type"@i',
+			'@<meta [^>]*charset\s*=\s*["\']?\s*([^"\' ]+)@i',
+		];
+		foreach ($metatags as $metatag) {
+			if (preg_match($metatag, $str, $matches)) {
+				if (isset($matches[1]) && in_array($matches[1], mb_list_encodings())) {
+					$document_encoding = $matches[1];
+					break;
+				}
+			}
+		}
+		if (isset($document_encoding) && in_array(strtoupper($document_encoding), ['UTF-8','UTF8']) === false) {
+			$str = preg_replace('/charset=([^\s"]+)/i', 'charset=UTF-8', $str);
+		} elseif (isset($document_encoding) === false && strpos($str, '<head>') !== false) {
+			$str = str_replace('<head>', '<head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">', $str);
+		} elseif (isset($document_encoding) === false) {
+			$str = '<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">' . $str;
+		}
+
+		// remove BOM mark from UTF-8, it's treated as document text by DOMDocument
+		// FIXME: roll this into the encoding detection using UTF-8/16/32 BOM (http://us2.php.net/manual/en/function.mb-detect-encoding.php#91051)?
+		if (substr($str, 0, 3) == chr(0xEF) . chr(0xBB) . chr(0xBF)) {
+			$str = substr($str, 3);
+		}
+
+		// Store parsing warnings as messages
+		set_error_handler([Helpers::class, 'record_warnings']);
+
+		try {
+			// @todo Take the quirksmode into account
+			// https://quirks.spec.whatwg.org/
+			// http://hsivonen.iki.fi/doctype/
+			$quirksmode = false;
+
+			$html5 = new HTML5(['encoding' => $encoding, 'disable_html_ns' => true]);
+			$dom = $html5->loadHTML($str);
+
+			// extra step to normalize the HTML document structure
+			// see Masterminds/html5-php#166
+			$doc = new DOMDocument("1.0", $encoding);
+			$doc->preserveWhiteSpace = true;
+			$doc->loadHTML($html5->saveHTML($dom), LIBXML_NOWARNING | LIBXML_NOERROR);
+
+			$this->loadDOM($doc, $quirksmode);
+		} finally {
+			restore_error_handler();
+			$this->restorePhpConfig();
+		}
+	}
+
+	/**
+	 * @param DOMNode $node
+	 * @deprecated
+	 */
+	public static function remove_text_nodes(DOMNode $node)
+	{
+		self::removeTextNodes($node);
+	}
+
+	/**
+	 * @param DOMNode $node
+	 */
+	public static function removeTextNodes(DOMNode $node)
+	{
+		$children = [];
+		for ($i = 0; $i < $node->childNodes->length; $i++) {
+			$child = $node->childNodes->item($i);
+			if ($child->nodeName === "#text") {
+				$children[] = $child;
+			}
+		}
+
+		foreach ($children as $child) {
+			$node->removeChild($child);
+		}
+	}
+
+	/**
+	 * Builds the {@link FrameTree}, loads any CSS and applies the styles to
+	 * the {@link FrameTree}
+	 */
+	private function processHtml()
+	{
+		$this->tree->build_tree();
+
+		$this->css->load_css_file($this->css->getDefaultStylesheet(), Stylesheet::ORIG_UA);
+
+		$acceptedmedia = Stylesheet::$ACCEPTED_GENERIC_MEDIA_TYPES;
+		$acceptedmedia[] = $this->options->getDefaultMediaType();
+
+		// <base href="" />
+		/** @var \DOMElement|null */
+		$baseNode = $this->dom->getElementsByTagName("base")->item(0);
+		$baseHref = $baseNode ? $baseNode->getAttribute("href") : "";
+		if ($baseHref !== "") {
+			[$this->protocol, $this->baseHost, $this->basePath] = Helpers::explode_url($baseHref);
+		}
+
+		// Set the base path of the Stylesheet to that of the file being processed
+		$this->css->set_protocol($this->protocol);
+		$this->css->set_host($this->baseHost);
+		$this->css->set_base_path($this->basePath);
+
+		// Get all the stylesheets so that they are processed in document order
+		$xpath = new DOMXPath($this->dom);
+		$stylesheets = $xpath->query("//*[name() = 'link' or name() = 'style']");
+
+		/** @var \DOMElement $tag */
+		foreach ($stylesheets as $tag) {
+			switch (strtolower($tag->nodeName)) {
+				// load <link rel="STYLESHEET" ... /> tags
+				case "link":
+					if (mb_strtolower(stripos($tag->getAttribute("rel"), "stylesheet") !== false) || // may be "appendix stylesheet"
+						mb_strtolower($tag->getAttribute("type")) === "text/css"
+					) {
+						//Check if the css file is for an accepted media type
+						//media not given then always valid
+						$formedialist = preg_split("/[\s\n,]/", $tag->getAttribute("media"), -1, PREG_SPLIT_NO_EMPTY);
+						if (count($formedialist) > 0) {
+							$accept = false;
+							foreach ($formedialist as $type) {
+								if (in_array(mb_strtolower(trim($type)), $acceptedmedia)) {
+									$accept = true;
+									break;
+								}
+							}
+
+							if (!$accept) {
+								//found at least one mediatype, but none of the accepted ones
+								//Skip this css file.
+								break;
+							}
+						}
+
+						$url = $tag->getAttribute("href");
+						$url = Helpers::build_url($this->protocol, $this->baseHost, $this->basePath, $url);
+
+						if ($url !== null) {
+							$this->css->load_css_file($url, Stylesheet::ORIG_AUTHOR);
+						}
+					}
+					break;
+
+				// load <style> tags
+				case "style":
+					// Accept all <style> tags by default (note this is contrary to W3C
+					// HTML 4.0 spec:
+					// http://www.w3.org/TR/REC-html40/present/styles.html#adef-media
+					// which states that the default media type is 'screen'
+					if ($tag->hasAttributes() &&
+						($media = $tag->getAttribute("media")) &&
+						!in_array($media, $acceptedmedia)
+					) {
+						break;
+					}
+
+					$css = "";
+					if ($tag->hasChildNodes()) {
+						$child = $tag->firstChild;
+						while ($child) {
+							$css .= $child->nodeValue; // Handle <style><!-- blah --></style>
+							$child = $child->nextSibling;
+						}
+					} else {
+						$css = $tag->nodeValue;
+					}
+
+					// Set the base path of the Stylesheet to that of the file being processed
+					$this->css->set_protocol($this->protocol);
+					$this->css->set_host($this->baseHost);
+					$this->css->set_base_path($this->basePath);
+
+					$this->css->load_css($css, Stylesheet::ORIG_AUTHOR);
+					break;
+			}
+
+			// Set the base path of the Stylesheet to that of the file being processed
+			$this->css->set_protocol($this->protocol);
+			$this->css->set_host($this->baseHost);
+			$this->css->set_base_path($this->basePath);
+		}
+	}
+
+	/**
+	 * @param string $cacheId
+	 * @deprecated
+	 */
+	public function enable_caching($cacheId)
+	{
+		$this->enableCaching($cacheId);
+	}
+
+	/**
+	 * Enable experimental caching capability
+	 *
+	 * @param string $cacheId
+	 */
+	public function enableCaching($cacheId)
+	{
+		$this->cacheId = $cacheId;
+	}
+
+	/**
+	 * @param string $value
+	 * @return bool
+	 * @deprecated
+	 */
+	public function parse_default_view($value)
+	{
+		return $this->parseDefaultView($value);
+	}
+
+	/**
+	 * @param string $value
+	 * @return bool
+	 */
+	public function parseDefaultView($value)
+	{
+		$valid = ["XYZ", "Fit", "FitH", "FitV", "FitR", "FitB", "FitBH", "FitBV"];
+
+		$options = preg_split("/\s*,\s*/", trim($value));
+		$defaultView = array_shift($options);
+
+		if (!in_array($defaultView, $valid)) {
+			return false;
+		}
+
+		$this->setDefaultView($defaultView, $options);
+		return true;
+	}
+
+	/**
+	 * Renders the HTML to PDF
+	 */
+	public function render()
+	{
+		$this->setPhpConfig();
+
+		$logOutputFile = $this->options->getLogOutputFile();
+		if ($logOutputFile) {
+			if (!file_exists($logOutputFile) && is_writable(dirname($logOutputFile))) {
+				touch($logOutputFile);
+			}
+
+			$startTime = microtime(true);
+			if (is_writable($logOutputFile)) {
+				ob_start();
+			}
+		}
+
+		$this->processHtml();
+
+		$this->css->apply_styles($this->tree);
+
+		// @page style rules : size, margins
+		$pageStyles = $this->css->get_page_styles();
+		$basePageStyle = $pageStyles["base"];
+		unset($pageStyles["base"]);
+
+		foreach ($pageStyles as $pageStyle) {
+			$pageStyle->inherit($basePageStyle);
+		}
+
+		// Set paper size if defined via CSS
+		if (is_array($basePageStyle->size)) {
+			[$width, $height] = $basePageStyle->size;
+			$this->setPaper([0, 0, $width, $height]);
+		}
+
+		// Create a new canvas instance if the current one does not match the
+		// desired paper size
+		$canvasWidth = $this->canvas->get_width();
+		$canvasHeight = $this->canvas->get_height();
+		$size = $this->getPaperSize();
+
+		if ($canvasWidth !== $size[2] || $canvasHeight !== $size[3]) {
+			$this->canvas = CanvasFactory::get_instance($this, $this->paperSize, $this->paperOrientation);
+			$this->fontMetrics->setCanvas($this->canvas);
+		}
+
+		$canvas = $this->canvas;
+
+		$root_frame = $this->tree->get_root();
+		$root = Factory::decorate_root($root_frame, $this);
+		foreach ($this->tree as $frame) {
+			if ($frame === $root_frame) {
+				continue;
+			}
+			Factory::decorate_frame($frame, $this, $root);
+		}
+
+		// Add meta information
+		$title = $this->dom->getElementsByTagName("title");
+		if ($title->length) {
+			$canvas->add_info("Title", trim($title->item(0)->nodeValue));
+		}
+
+		$metas = $this->dom->getElementsByTagName("meta");
+		$labels = [
+			"author" => "Author",
+			"keywords" => "Keywords",
+			"description" => "Subject",
+		];
+		/** @var \DOMElement $meta */
+		foreach ($metas as $meta) {
+			$name = mb_strtolower($meta->getAttribute("name"));
+			$value = trim($meta->getAttribute("content"));
+
+			if (isset($labels[$name])) {
+				$canvas->add_info($labels[$name], $value);
+				continue;
+			}
+
+			if ($name === "dompdf.view" && $this->parseDefaultView($value)) {
+				$canvas->set_default_view($this->defaultView, $this->defaultViewOptions);
+			}
+		}
+
+		$root->set_containing_block(0, 0, $canvas->get_width(), $canvas->get_height());
+		$root->set_renderer(new Renderer($this));
+
+		// This is where the magic happens:
+		$root->reflow();
+
+		if (isset($this->callbacks["end_document"])) {
+			$fs = $this->callbacks["end_document"];
+
+			foreach ($fs as $f) {
+				$canvas->page_script($f);
+			}
+		}
+
+		// Clean up cached images
+		if (!$this->options->getDebugKeepTemp()) {
+			Cache::clear($this->options->getDebugPng());
+		}
+
+		global $_dompdf_warnings, $_dompdf_show_warnings;
+		if ($_dompdf_show_warnings && isset($_dompdf_warnings)) {
+			echo '<b>Dompdf Warnings</b><br><pre>';
+			foreach ($_dompdf_warnings as $msg) {
+				echo $msg . "\n";
+			}
+
+			if ($canvas instanceof CPDF) {
+				echo $canvas->get_cpdf()->messages;
+			}
+			echo '</pre>';
+			flush();
+		}
+
+		if ($logOutputFile && is_writable($logOutputFile)) {
+			$this->writeLog($logOutputFile, $startTime);
+			ob_end_clean();
+		}
+
+		$this->restorePhpConfig();
+	}
+
+	/**
+	 * Writes the output buffer in the log file
+	 *
+	 * @param string $logOutputFile
+	 * @param float $startTime
+	 */
+	private function writeLog(string $logOutputFile, float $startTime): void
+	{
+		$frames = Frame::$ID_COUNTER;
+		$memory = memory_get_peak_usage(true) / 1024;
+		$time = (microtime(true) - $startTime) * 1000;
+
+		$out = sprintf(
+			"<span style='color: #000' title='Frames'>%6d</span>" .
+			"<span style='color: #009' title='Memory'>%10.2f KB</span>" .
+			"<span style='color: #900' title='Time'>%10.2f ms</span>" .
+			"<span  title='Quirksmode'>  " .
+			($this->quirksmode ? "<span style='color: #d00'> ON</span>" : "<span style='color: #0d0'>OFF</span>") .
+			"</span><br />", $frames, $memory, $time);
+
+		$out .= ob_get_contents();
+		ob_clean();
+
+		file_put_contents($logOutputFile, $out);
+	}
+
+	/**
+	 * Add meta information to the PDF after rendering.
+	 *
+	 * @deprecated
+	 */
+	public function add_info($label, $value)
+	{
+		$this->addInfo($label, $value);
+	}
+
+	/**
+	 * Add meta information to the PDF after rendering.
+	 *
+	 * @param string $label Label of the value (Creator, Producer, etc.)
+	 * @param string $value The text to set
+	 */
+	public function addInfo(string $label, string $value): void
+	{
+		$this->canvas->add_info($label, $value);
+	}
+
+	/**
+	 * Streams the PDF to the client.
+	 *
+	 * The file will open a download dialog by default. The options
+	 * parameter controls the output. Accepted options (array keys) are:
+	 *
+	 * 'compress' = > 1 (=default) or 0:
+	 *   Apply content stream compression
+	 *
+	 * 'Attachment' => 1 (=default) or 0:
+	 *   Set the 'Content-Disposition:' HTTP header to 'attachment'
+	 *   (thereby causing the browser to open a download dialog)
+	 *
+	 * @param string $filename the name of the streamed file
+	 * @param array $options header options (see above)
+	 */
+	public function stream($filename = "document.pdf", $options = [])
+	{
+		$this->setPhpConfig();
+
+		$this->canvas->stream($filename, $options);
+
+		$this->restorePhpConfig();
+	}
+
+	/**
+	 * Returns the PDF as a string.
+	 *
+	 * The options parameter controls the output. Accepted options are:
+	 *
+	 * 'compress' = > 1 or 0 - apply content stream compression, this is
+	 *    on (1) by default
+	 *
+	 * @param array $options options (see above)
+	 *
+	 * @return string|null
+	 */
+	public function output($options = [])
+	{
+		$this->setPhpConfig();
+
+		$output = $this->canvas->output($options);
+
+		$this->restorePhpConfig();
+
+		return $output;
+	}
+
+	/**
+	 * @return string
+	 * @deprecated
+	 */
+	public function output_html()
+	{
+		return $this->outputHtml();
+	}
+
+	/**
+	 * Returns the underlying HTML document as a string
+	 *
+	 * @return string
+	 */
+	public function outputHtml()
+	{
+		return $this->dom->saveHTML();
+	}
+
+	/**
+	 * Get the dompdf option value
+	 *
+	 * @param string $key
+	 * @return mixed
+	 * @deprecated
+	 */
+	public function get_option($key)
+	{
+		return $this->options->get($key);
+	}
+
+	/**
+	 * @param string $key
+	 * @param mixed $value
+	 * @return $this
+	 * @deprecated
+	 */
+	public function set_option($key, $value)
+	{
+		$this->options->set($key, $value);
+		return $this;
+	}
+
+	/**
+	 * @param array $options
+	 * @return $this
+	 * @deprecated
+	 */
+	public function set_options(array $options)
+	{
+		$this->options->set($options);
+		return $this;
+	}
+
+	/**
+	 * @param string $size
+	 * @param string $orientation
+	 * @deprecated
+	 */
+	public function set_paper($size, $orientation = "portrait")
+	{
+		$this->setPaper($size, $orientation);
+	}
+
+	/**
+	 * Sets the paper size & orientation
+	 *
+	 * @param string|float[] $size 'letter', 'legal', 'A4', etc. {@link Dompdf\Adapter\CPDF::$PAPER_SIZES}
+	 * @param string $orientation 'portrait' or 'landscape'
+	 * @return $this
+	 */
+	public function setPaper($size, $orientation = "portrait")
+	{
+		$this->paperSize = $size;
+		$this->paperOrientation = $orientation;
+		return $this;
+	}
+
+	/**
+	 * Gets the paper size
+	 *
+	 * @return float[] A four-element float array
+	 */
+	public function getPaperSize()
+	{
+		$paper = $this->paperSize;
+		$orientation = $this->paperOrientation;
+
+		if (is_array($paper)) {
+			$size = array_map("floatval", $paper);
+		} else {
+			$paper = strtolower($paper);
+			$size = CPDF::$PAPER_SIZES[$paper] ?? CPDF::$PAPER_SIZES["letter"];
+		}
+
+		if (strtolower($orientation) === "landscape") {
+			[$size[2], $size[3]] = [$size[3], $size[2]];
+		}
+
+		return $size;
+	}
+
+	/**
+	 * Gets the paper orientation
+	 *
+	 * @return string Either "portrait" or "landscape"
+	 */
+	public function getPaperOrientation()
+	{
+		return $this->paperOrientation;
+	}
+
+	/**
+	 * @param FrameTree $tree
+	 * @return $this
+	 */
+	public function setTree(FrameTree $tree)
+	{
+		$this->tree = $tree;
+		return $this;
+	}
+
+	/**
+	 * @return FrameTree
+	 * @deprecated
+	 */
+	public function get_tree()
+	{
+		return $this->getTree();
+	}
+
+	/**
+	 * Returns the underlying {@link FrameTree} object
+	 *
+	 * @return FrameTree
+	 */
+	public function getTree()
+	{
+		return $this->tree;
+	}
+
+	/**
+	 * @param string $protocol
+	 * @return $this
+	 * @deprecated
+	 */
+	public function set_protocol($protocol)
+	{
+		return $this->setProtocol($protocol);
+	}
+
+	/**
+	 * Sets the protocol to use
+	 * FIXME validate these
+	 *
+	 * @param string $protocol
+	 * @return $this
+	 */
+	public function setProtocol(string $protocol)
+	{
+		$this->protocol = $protocol;
+		return $this;
+	}
+
+	/**
+	 * @return string
+	 * @deprecated
+	 */
+	public function get_protocol()
+	{
+		return $this->getProtocol();
+	}
+
+	/**
+	 * Returns the protocol in use
+	 *
+	 * @return string
+	 */
+	public function getProtocol()
+	{
+		return $this->protocol;
+	}
+
+	/**
+	 * @param string $host
+	 * @deprecated
+	 */
+	public function set_host($host)
+	{
+		$this->setBaseHost($host);
+	}
+
+	/**
+	 * Sets the base hostname
+	 *
+	 * @param string $baseHost
+	 * @return $this
+	 */
+	public function setBaseHost(string $baseHost)
+	{
+		$this->baseHost = $baseHost;
+		return $this;
+	}
+
+	/**
+	 * @return string
+	 * @deprecated
+	 */
+	public function get_host()
+	{
+		return $this->getBaseHost();
+	}
+
+	/**
+	 * Returns the base hostname
+	 *
+	 * @return string
+	 */
+	public function getBaseHost()
+	{
+		return $this->baseHost;
+	}
+
+	/**
+	 * Sets the base path
+	 *
+	 * @param string $path
+	 * @deprecated
+	 */
+	public function set_base_path($path)
+	{
+		$this->setBasePath($path);
+	}
+
+	/**
+	 * Sets the base path
+	 *
+	 * @param string $basePath
+	 * @return $this
+	 */
+	public function setBasePath(string $basePath)
+	{
+		$this->basePath = $basePath;
+		return $this;
+	}
+
+	/**
+	 * @return string
+	 * @deprecated
+	 */
+	public function get_base_path()
+	{
+		return $this->getBasePath();
+	}
+
+	/**
+	 * Returns the base path
+	 *
+	 * @return string
+	 */
+	public function getBasePath()
+	{
+		return $this->basePath;
+	}
+
+	/**
+	 * @param string $default_view The default document view
+	 * @param array $options The view's options
+	 * @return $this
+	 * @deprecated
+	 */
+	public function set_default_view($default_view, $options)
+	{
+		return $this->setDefaultView($default_view, $options);
+	}
+
+	/**
+	 * Sets the default view
+	 *
+	 * @param string $defaultView The default document view
+	 * @param array $options The view's options
+	 * @return $this
+	 */
+	public function setDefaultView($defaultView, $options)
+	{
+		$this->defaultView = $defaultView;
+		$this->defaultViewOptions = $options;
+		return $this;
+	}
+
+	/**
+	 * @param resource $http_context
+	 * @return $this
+	 * @deprecated
+	 */
+	public function set_http_context($http_context)
+	{
+		return $this->setHttpContext($http_context);
+	}
+
+	/**
+	 * Sets the HTTP context
+	 *
+	 * @param resource|array $httpContext
+	 * @return $this
+	 */
+	public function setHttpContext($httpContext)
+	{
+		$this->options->setHttpContext($httpContext);
+		return $this;
+	}
+
+	/**
+	 * @return resource
+	 * @deprecated
+	 */
+	public function get_http_context()
+	{
+		return $this->getHttpContext();
+	}
+
+	/**
+	 * Returns the HTTP context
+	 *
+	 * @return resource
+	 */
+	public function getHttpContext()
+	{
+		return $this->options->getHttpContext();
+	}
+
+	/**
+	 * Set a custom `Canvas` instance to render the document to.
+	 *
+	 * Be aware that the instance will be replaced on render if the document
+	 * defines a paper size different from the canvas.
+	 *
+	 * @param Canvas $canvas
+	 * @return $this
+	 */
+	public function setCanvas(Canvas $canvas)
+	{
+		$this->canvas = $canvas;
+		return $this;
+	}
+
+	/**
+	 * @return Canvas
+	 * @deprecated
+	 */
+	public function get_canvas()
+	{
+		return $this->getCanvas();
+	}
+
+	/**
+	 * Return the underlying Canvas instance (e.g. Dompdf\Adapter\CPDF, Dompdf\Adapter\GD)
+	 *
+	 * @return Canvas
+	 */
+	public function getCanvas()
+	{
+		return $this->canvas;
+	}
+
+	/**
+	 * @param Stylesheet $css
+	 * @return $this
+	 */
+	public function setCss(Stylesheet $css)
+	{
+		$this->css = $css;
+		return $this;
+	}
+
+	/**
+	 * @return Stylesheet
+	 * @deprecated
+	 */
+	public function get_css()
+	{
+		return $this->getCss();
+	}
+
+	/**
+	 * Returns the stylesheet
+	 *
+	 * @return Stylesheet
+	 */
+	public function getCss()
+	{
+		return $this->css;
+	}
+
+	/**
+	 * @param DOMDocument $dom
+	 * @return $this
+	 */
+	public function setDom(DOMDocument $dom)
+	{
+		$this->dom = $dom;
+		return $this;
+	}
+
+	/**
+	 * @return DOMDocument
+	 * @deprecated
+	 */
+	public function get_dom()
+	{
+		return $this->getDom();
+	}
+
+	/**
+	 * @return DOMDocument
+	 */
+	public function getDom()
+	{
+		return $this->dom;
+	}
+
+	/**
+	 * @param Options $options
+	 * @return $this
+	 */
+	public function setOptions(Options $options)
+	{
+		// For backwards compatibility
+		if ($this->options && $this->options->getHttpContext() && !$options->getHttpContext()) {
+			$options->setHttpContext($this->options->getHttpContext());
+		}
+
+		$this->options = $options;
+		$fontMetrics = $this->fontMetrics;
+		if (isset($fontMetrics)) {
+			$fontMetrics->setOptions($options);
+		}
+		return $this;
+	}
+
+	/**
+	 * @return Options
+	 */
+	public function getOptions()
+	{
+		return $this->options;
+	}
+
+	/**
+	 * @return array
+	 * @deprecated
+	 */
+	public function get_callbacks()
+	{
+		return $this->getCallbacks();
+	}
+
+	/**
+	 * Returns the callbacks array
+	 *
+	 * @return array
+	 */
+	public function getCallbacks()
+	{
+		return $this->callbacks;
+	}
+
+	/**
+	 * @param array $callbacks the set of callbacks to set
+	 * @return $this
+	 * @deprecated
+	 */
+	public function set_callbacks($callbacks)
+	{
+		return $this->setCallbacks($callbacks);
+	}
+
+	/**
+	 * Define callbacks that allow modifying the document during render.
+	 *
+	 * The callbacks array should contain arrays with `event` set to a callback
+	 * event name and `f` set to a function or any other callable.
+	 *
+	 * The available callback events are:
+	 * * `begin_page_reflow`: called before page reflow
+	 * * `begin_frame`: called before a frame is rendered
+	 * * `end_frame`: called after frame rendering is complete
+	 * * `begin_page_render`: called before a page is rendered
+	 * * `end_page_render`: called after page rendering is complete
+	 * * `end_document`: called for every page after rendering is complete
+	 *
+	 * The function `f` receives three arguments `Frame $frame`, `Canvas $canvas`,
+	 * and `FontMetrics $fontMetrics` for all events but `end_document`. For
+	 * `end_document`, the function receives four arguments `int $pageNumber`,
+	 * `int $pageCount`, `Canvas $canvas`, and `FontMetrics $fontMetrics` instead.
+	 *
+	 * @param array $callbacks The set of callbacks to set.
+	 * @return $this
+	 */
+	public function setCallbacks(array $callbacks): self
+	{
+		$this->callbacks = [];
+
+		foreach ($callbacks as $c) {
+			if (is_array($c) && isset($c["event"]) && isset($c["f"])) {
+				$event = $c["event"];
+				$f = $c["f"];
+				if (is_string($event) && is_callable($f)) {
+					$this->callbacks[$event][] = $f;
+				}
+			}
+		}
+
+		return $this;
+	}
+
+	/**
+	 * @return boolean
+	 * @deprecated
+	 */
+	public function get_quirksmode()
+	{
+		return $this->getQuirksmode();
+	}
+
+	/**
+	 * Get the quirks mode
+	 *
+	 * @return boolean true if quirks mode is active
+	 */
+	public function getQuirksmode()
+	{
+		return $this->quirksmode;
+	}
+
+	/**
+	 * @param FontMetrics $fontMetrics
+	 * @return $this
+	 */
+	public function setFontMetrics(FontMetrics $fontMetrics)
+	{
+		$this->fontMetrics = $fontMetrics;
+		return $this;
+	}
+
+	/**
+	 * @return FontMetrics
+	 */
+	public function getFontMetrics()
+	{
+		return $this->fontMetrics;
+	}
+
+	/**
+	 * PHP5 overloaded getter
+	 * Along with {@link Dompdf::__set()} __get() provides access to all
+	 * properties directly.  Typically __get() is not called directly outside
+	 * of this class.
+	 *
+	 * @param string $prop
+	 *
+	 * @throws Exception
+	 * @return mixed
+	 */
+	function __get($prop)
+	{
+		switch ($prop) {
+			case 'version':
+				return $this->version;
+			default:
+				throw new Exception('Invalid property: ' . $prop);
+		}
+	}
 }

vendor/dompdf/dompdf/src/Css/Stylesheet.php

Indentation +1617 added lines, -1617 removed lines

@@ -27,33 +27,33 @@ 
  */
 class Stylesheet
 {
-    /**
-     * The location of the default built-in CSS file.
-     */
-    const DEFAULT_STYLESHEET = "/lib/res/html.css";
-
-    /**
-     * User agent stylesheet origin
-     *
-     * @var int
-     */
-    const ORIG_UA = 1;
-
-    /**
-     * User normal stylesheet origin
-     *
-     * @var int
-     */
-    const ORIG_USER = 2;
-
-    /**
-     * Author normal stylesheet origin
-     *
-     * @var int
-     */
-    const ORIG_AUTHOR = 3;
-
-    /*
+	/**
+	 * The location of the default built-in CSS file.
+	 */
+	const DEFAULT_STYLESHEET = "/lib/res/html.css";
+
+	/**
+	 * User agent stylesheet origin
+	 *
+	 * @var int
+	 */
+	const ORIG_UA = 1;
+
+	/**
+	 * User normal stylesheet origin
+	 *
+	 * @var int
+	 */
+	const ORIG_USER = 2;
+
+	/**
+	 * Author normal stylesheet origin
+	 *
+	 * @var int
+	 */
+	const ORIG_AUTHOR = 3;
+
+	/*
      * The highest possible specificity is 0x01000000 (and that is only for author
      * stylesheets, as it is for inline styles). Origin precedence can be achieved by
      * adding multiples of 0x10000000 to the actual specificity. Important
@@ -63,797 +63,797 @@ 
      * not support user stylesheets, and user agent stylesheets can not include
      * important declarations.
      */
-    private static $_stylesheet_origins = [
-        self::ORIG_UA => 0x00000000, // user agent declarations
-        self::ORIG_USER => 0x10000000, // user normal declarations
-        self::ORIG_AUTHOR => 0x30000000, // author normal declarations
-    ];
-
-    /**
-     * Non-CSS presentational hints (i.e. HTML 4 attributes) are handled as if added
-     * to the beginning of an author stylesheet, i.e. anything in author stylesheets
-     * should override them.
-     */
-    const SPEC_NON_CSS = 0x20000000;
-
-    /**
-     * Current dompdf instance
-     *
-     * @var Dompdf
-     */
-    private $_dompdf;
-
-    /**
-     * Array of currently defined styles
-     *
-     * @var Style[]
-     */
-    private $_styles;
-
-    /**
-     * Base protocol of the document being parsed
-     * Used to handle relative urls.
-     *
-     * @var string
-     */
-    private $_protocol = "";
-
-    /**
-     * Base hostname of the document being parsed
-     * Used to handle relative urls.
-     *
-     * @var string
-     */
-    private $_base_host = "";
-
-    /**
-     * Base path of the document being parsed
-     * Used to handle relative urls.
-     *
-     * @var string
-     */
-    private $_base_path = "";
-
-    /**
-     * The styles defined by @page rules
-     *
-     * @var array<Style>
-     */
-    private $_page_styles;
-
-    /**
-     * List of loaded files, used to prevent recursion
-     *
-     * @var array
-     */
-    private $_loaded_files;
-
-    /**
-     * Current stylesheet origin
-     *
-     * @var int
-     */
-    private $_current_origin = self::ORIG_UA;
-
-    /**
-     * Accepted CSS media types
-     * List of types and parsing rules for future extensions:
-     * http://www.w3.org/TR/REC-html40/types.html
-     *   screen, tty, tv, projection, handheld, print, braille, aural, all
-     * The following are non standard extensions for undocumented specific environments.
-     *   static, visual, bitmap, paged, dompdf
-     * Note, even though the generated pdf file is intended for print output,
-     * the desired content might be different (e.g. screen or projection view of html file).
-     * Therefore allow specification of content by dompdf setting Options::defaultMediaType.
-     * If given, replace media "print" by Options::defaultMediaType.
-     * (Previous version $ACCEPTED_MEDIA_TYPES = $ACCEPTED_GENERIC_MEDIA_TYPES + $ACCEPTED_DEFAULT_MEDIA_TYPE)
-     */
-    static $ACCEPTED_DEFAULT_MEDIA_TYPE = "print";
-    static $ACCEPTED_GENERIC_MEDIA_TYPES = ["all", "static", "visual", "bitmap", "paged", "dompdf"];
-    static $VALID_MEDIA_TYPES = ["all", "aural", "bitmap", "braille", "dompdf", "embossed", "handheld", "paged", "print", "projection", "screen", "speech", "static", "tty", "tv", "visual"];
-
-    /**
-     * @var FontMetrics
-     */
-    private $fontMetrics;
-
-    /**
-     * The class constructor.
-     *
-     * The base protocol, host & path are initialized to those of
-     * the current script.
-     */
-    function __construct(Dompdf $dompdf)
-    {
-        $this->_dompdf = $dompdf;
-        $this->setFontMetrics($dompdf->getFontMetrics());
-        $this->_styles = [];
-        $this->_loaded_files = [];
-        $script = __FILE__;
-        if (isset($_SERVER["SCRIPT_FILENAME"])) {
-            $script = $_SERVER["SCRIPT_FILENAME"];
-        }
-        list($this->_protocol, $this->_base_host, $this->_base_path) = Helpers::explode_url($script);
-        $this->_page_styles = ["base" => new Style($this)];
-    }
-
-    /**
-     * Set the base protocol
-     *
-     * @param string $protocol
-     */
-    function set_protocol(string $protocol)
-    {
-        $this->_protocol = $protocol;
-    }
-
-    /**
-     * Set the base host
-     *
-     * @param string $host
-     */
-    function set_host(string $host)
-    {
-        $this->_base_host = $host;
-    }
-
-    /**
-     * Set the base path
-     *
-     * @param string $path
-     */
-    function set_base_path(string $path)
-    {
-        $this->_base_path = $path;
-    }
-
-    /**
-     * Return the Dompdf object
-     *
-     * @return Dompdf
-     */
-    function get_dompdf()
-    {
-        return $this->_dompdf;
-    }
-
-    /**
-     * Return the base protocol for this stylesheet
-     *
-     * @return string
-     */
-    function get_protocol()
-    {
-        return $this->_protocol;
-    }
-
-    /**
-     * Return the base host for this stylesheet
-     *
-     * @return string
-     */
-    function get_host()
-    {
-        return $this->_base_host;
-    }
-
-    /**
-     * Return the base path for this stylesheet
-     *
-     * @return string
-     */
-    function get_base_path()
-    {
-        return $this->_base_path;
-    }
-
-    /**
-     * Return the array of page styles
-     *
-     * @return Style[]
-     */
-    function get_page_styles()
-    {
-        return $this->_page_styles;
-    }
-
-    /**
-     * Create a new Style object associated with this stylesheet
-     *
-     * @return Style
-     */
-    function create_style(): Style
-    {
-        return new Style($this, $this->_current_origin);
-    }
-
-    /**
-     * Add a new Style object to the stylesheet
-     *
-     * The style's origin is changed to the current origin of the stylesheet.
-     *
-     * @param string $key the Style's selector
-     * @param Style $style the Style to be added
-     */
-    function add_style(string $key, Style $style): void
-    {
-        if (!isset($this->_styles[$key])) {
-            $this->_styles[$key] = [];
-        }
-
-        $style->set_origin($this->_current_origin);
-        $this->_styles[$key][] = $style;
-    }
-
-    /**
-     * load and parse a CSS string
-     *
-     * @param string $css
-     * @param int $origin
-     */
-    function load_css(&$css, $origin = self::ORIG_AUTHOR)
-    {
-        if ($origin) {
-            $this->_current_origin = $origin;
-        }
-        $this->_parse_css($css);
-    }
-
-    /**
-     * load and parse a CSS file
-     *
-     * @param string $file
-     * @param int $origin
-     */
-    function load_css_file($file, $origin = self::ORIG_AUTHOR)
-    {
-        if ($origin) {
-            $this->_current_origin = $origin;
-        }
-
-        // Prevent circular references
-        if (isset($this->_loaded_files[$file])) {
-            return;
-        }
-
-        $this->_loaded_files[$file] = true;
-
-        if (strpos($file, "data:") === 0) {
-            $parsed = Helpers::parse_data_uri($file);
-            $css = $parsed["data"];
-        } else {
-            $options = $this->_dompdf->getOptions();
-
-            $parsed_url = Helpers::explode_url($file);
-            $protocol = $parsed_url["protocol"];
-
-            if ($file !== $this->getDefaultStylesheet()) {
-                $allowed_protocols = $options->getAllowedProtocols();
-                if (!array_key_exists($protocol, $allowed_protocols)) {
-                    Helpers::record_warnings(E_USER_WARNING, "Permission denied on $file. The communication protocol is not supported.", __FILE__, __LINE__);
-                    return;
-                }
-                foreach ($allowed_protocols[$protocol]["rules"] as $rule) {
-                    [$result, $message] = $rule($file);
-                    if (!$result) {
-                        Helpers::record_warnings(E_USER_WARNING, "Error loading $file: $message", __FILE__, __LINE__);
-                        return;
-                    }
-                }
-            }
-
-            [$css, $http_response_header] = Helpers::getFileContent($file, $this->_dompdf->getHttpContext());
-
-            $good_mime_type = true;
-
-            // See http://the-stickman.com/web-development/php/getting-http-response-headers-when-using-file_get_contents/
-            if (isset($http_response_header) && !$this->_dompdf->getQuirksmode()) {
-                foreach ($http_response_header as $_header) {
-                    if (preg_match("@Content-Type:\s*([\w/]+)@i", $_header, $matches) &&
-                        ($matches[1] !== "text/css")
-                    ) {
-                        $good_mime_type = false;
-                    }
-                }
-            }
-            if (!$good_mime_type || $css === null) {
-                Helpers::record_warnings(E_USER_WARNING, "Unable to load css file $file", __FILE__, __LINE__);
-                return;
-            }
-
-            [$this->_protocol, $this->_base_host, $this->_base_path] = $parsed_url;
-        }
-
-        $this->_parse_css($css);
-    }
-
-    /**
-     * @link http://www.w3.org/TR/CSS21/cascade.html#specificity
-     *
-     * @param string $selector
-     * @param int $origin :
-     *    - Stylesheet::ORIG_UA: user agent style sheet
-     *    - Stylesheet::ORIG_USER: user style sheet
-     *    - Stylesheet::ORIG_AUTHOR: author style sheet
-     *
-     * @return int
-     */
-    private function _specificity($selector, $origin = self::ORIG_AUTHOR)
-    {
-        // http://www.w3.org/TR/CSS21/cascade.html#specificity
-        // ignoring the ":" pseudoclass modifiers
-        // also ignored in _css_selector_to_xpath
-
-        $a = ($selector === "!attr") ? 1 : 0;
-
-        $b = min(mb_substr_count($selector, "#"), 255);
-
-        $c = min(mb_substr_count($selector, ".") +
-            mb_substr_count($selector, "["), 255);
-
-        $d = min(mb_substr_count($selector, " ") +
-            mb_substr_count($selector, ">") +
-            mb_substr_count($selector, "+") +
-            mb_substr_count($selector, "~") -
-            mb_substr_count($selector, "~="), 255);
-
-        //If a normal element name is at the beginning of the string,
-        //a leading whitespace might have been removed on whitespace collapsing and removal
-        //therefore there might be one whitespace less as selected element names
-        //this can lead to a too small specificity
-        //see _css_selector_to_xpath
-
-        if (!in_array($selector[0], [" ", ">", ".", "#", "+", "~", ":", "["]) && $selector !== "*") {
-            $d++;
-        }
-
-        if ($this->_dompdf->getOptions()->getDebugCss()) {
-            /*DEBUGCSS*/
-            print "<pre>\n";
-            /*DEBUGCSS*/
-            printf("_specificity(): 0x%08x \"%s\"\n", self::$_stylesheet_origins[$origin] + (($a << 24) | ($b << 16) | ($c << 8) | ($d)), $selector);
-            /*DEBUGCSS*/
-            print "</pre>";
-        }
-
-        return self::$_stylesheet_origins[$origin] + (($a << 24) | ($b << 16) | ($c << 8) | ($d));
-    }
-
-    /**
-     * Converts a CSS selector to an XPath query.
-     *
-     * @param string $selector
-     * @param bool $first_pass
-     *
-     * @throws Exception
-     * @return array
-     */
-    private function _css_selector_to_xpath(string $selector, bool $first_pass = false): array
-    {
-        // Collapse white space and strip whitespace around delimiters
-        //$search = array("/\\s+/", "/\\s+([.>#+:])\\s+/");
-        //$replace = array(" ", "\\1");
-        //$selector = preg_replace($search, $replace, trim($selector));
-
-        // Initial query (non-absolute)
-        $query = "//";
-
-        // Will contain :before and :after
-        $pseudo_elements = [];
-
-        // Will contain :link, etc
-        $pseudo_classes = [];
-
-        // Parse the selector
-        //$s = preg_split("/([ :>.#+])/", $selector, -1, PREG_SPLIT_DELIM_CAPTURE);
-
-        $delimiters = [" ", ">", ".", "#", "+", "~", ":", "[", "("];
-
-        // Add an implicit * at the beginning of the selector
-        // if it begins with an attribute selector
-        if ($selector[0] === "[") {
-            $selector = "*$selector";
-        }
-
-        // Add an implicit space at the beginning of the selector if there is no
-        // delimiter there already.
-        if (!in_array($selector[0], $delimiters)) {
-            $selector = " $selector";
-        }
-
-        $tok = "";
-        $len = mb_strlen($selector);
-        $i = 0;
-
-        while ($i < $len) {
-
-            $s = $selector[$i];
-            $i++;
-
-            // Eat characters up to the next delimiter
-            $tok = "";
-            $in_attr = false;
-            $in_func = false;
-
-            while ($i < $len) {
-                $c = $selector[$i];
-                $c_prev = $selector[$i - 1];
-
-                if (!$in_func && !$in_attr && in_array($c, $delimiters) && !(($c == $c_prev) == ":")) {
-                    break;
-                }
-
-                if ($c_prev === "[") {
-                    $in_attr = true;
-                }
-                if ($c_prev === "(") {
-                    $in_func = true;
-                }
-
-                $tok .= $selector[$i++];
-
-                if ($in_attr && $c === "]") {
-                    $in_attr = false;
-                    break;
-                }
-                if ($in_func && $c === ")") {
-                    $in_func = false;
-                    break;
-                }
-            }
-
-            switch ($s) {
-
-                case " ":
-                case ">":
-                    // All elements matching the next token that are direct children of
-                    // the current token
-                    $expr = $s === " " ? "descendant" : "child";
-
-                    if (mb_substr($query, -1, 1) !== "/") {
-                        $query .= "/";
-                    }
-
-                    // Tag names are case-insensitive
-                    $tok = strtolower($tok);
-
-                    if (!$tok) {
-                        $tok = "*";
-                    }
-
-                    $query .= "$expr::$tok";
-                    $tok = "";
-                    break;
-
-                case ".":
-                case "#":
-                    // All elements matching the current token with a class/id equal to
-                    // the _next_ token.
-
-                    $attr = $s === "." ? "class" : "id";
-
-                    // empty class/id == *
-                    if (mb_substr($query, -1, 1) === "/") {
-                        $query .= "*";
-                    }
-
-                    // Match multiple classes: $tok contains the current selected
-                    // class.  Search for class attributes with class="$tok",
-                    // class=".* $tok .*" and class=".* $tok"
-
-                    // This doesn't work because libxml only supports XPath 1.0...
-                    //$query .= "[matches(@$attr,\"^{$tok}\$|^{$tok}[ ]+|[ ]+{$tok}\$|[ ]+{$tok}[ ]+\")]";
-
-                    $query .= "[contains(concat(' ', normalize-space(@$attr), ' '), concat(' ', '$tok', ' '))]";
-                    $tok = "";
-                    break;
-
-                case "+":
-                case "~":
-                    // Next-sibling combinator
-                    // Subsequent-sibling combinator
-                    // https://www.w3.org/TR/selectors-3/#sibling-combinators
-                    if (mb_substr($query, -1, 1) !== "/") {
-                        $query .= "/";
-                    }
-
-                    // Tag names are case-insensitive
-                    $tok = strtolower($tok);
-
-                    if (!$tok) {
-                        $tok = "*";
-                    }
-
-                    $query .= "following-sibling::$tok";
-
-                    if ($s === "+") {
-                        $query .= "[1]";
-                    }
-
-                    $tok = "";
-                    break;
-
-                case ":":
-                    $i2 = $i - strlen($tok) - 2; // the char before ":"
-                    if (($i2 < 0 || !isset($selector[$i2]) || (in_array($selector[$i2], $delimiters) && $selector[$i2] != ":")) && substr($query, -1) != "*") {
-                        $query .= "*";
-                    }
-
-                    $last = false;
-
-                    // Pseudo-classes
-                    switch ($tok) {
-
-                        case "first-child":
-                            $query .= "[not(preceding-sibling::*)]";
-                            $tok = "";
-                            break;
-
-                        case "last-child":
-                            $query .= "[not(following-sibling::*)]";
-                            $tok = "";
-                            break;
-
-                        case "first-of-type":
-                            $query .= "[position() = 1]";
-                            $tok = "";
-                            break;
-
-                        case "last-of-type":
-                            $query .= "[position() = last()]";
-                            $tok = "";
-                            break;
-
-                        // an+b, n, odd, and even
-                        /** @noinspection PhpMissingBreakStatementInspection */
-                        case "nth-last-of-type":
-                            $last = true;
-                        case "nth-of-type":
-                            //FIXME: this fix-up is pretty ugly, would parsing the selector in reverse work better generally?
-                            $descendant_delimeter = strrpos($query, "::");
-                            $isChild = substr($query, $descendant_delimeter-5, 5) == "child";
-                            $el = substr($query, $descendant_delimeter+2);
-                            $query = substr($query, 0, strrpos($query, "/")) . ($isChild ? "/" : "//") . $el;
-
-                            $pseudo_classes[$tok] = true;
-                            $p = $i + 1;
-                            $nth = trim(mb_substr($selector, $p, strpos($selector, ")", $i) - $p));
-                            $position = $last ? "(last()-position()+1)" : "position()";
-
-                            // 1
-                            if (preg_match("/^\d+$/", $nth)) {
-                                $condition = "$position = $nth";
-                            } // odd
-                            elseif ($nth === "odd") {
-                                $condition = "($position mod 2) = 1";
-                            } // even
-                            elseif ($nth === "even") {
-                                $condition = "($position mod 2) = 0";
-                            } // an+b
-                            else {
-                                $condition = $this->_selector_an_plus_b($nth, $last);
-                            }
-
-                            $query .= "[$condition]";
-                            $tok = "";
-                            break;
-                        /** @noinspection PhpMissingBreakStatementInspection */
-                        case "nth-last-child":
-                            $last = true;
-                        case "nth-child":
-                            //FIXME: this fix-up is pretty ugly, would parsing the selector in reverse work better generally?
-                            $descendant_delimeter = strrpos($query, "::");
-                            $isChild = substr($query, $descendant_delimeter-5, 5) == "child";
-                            $el = substr($query, $descendant_delimeter+2);
-                            $query = substr($query, 0, strrpos($query, "/")) . ($isChild ? "/" : "//") . "*";
-
-                            $pseudo_classes[$tok] = true;
-                            $p = $i + 1;
-                            $nth = trim(mb_substr($selector, $p, strpos($selector, ")", $i) - $p));
-                            $position = $last ? "(last()-position()+1)" : "position()";
-
-                            // 1
-                            if (preg_match("/^\d+$/", $nth)) {
-                                $condition = "$position = $nth";
-                            } // odd
-                            elseif ($nth === "odd") {
-                                $condition = "($position mod 2) = 1";
-                            } // even
-                            elseif ($nth === "even") {
-                                $condition = "($position mod 2) = 0";
-                            } // an+b
-                            else {
-                                $condition = $this->_selector_an_plus_b($nth, $last);
-                            }
-
-                            $query .= "[$condition]";
-                            if ($el != "*") {
-                                $query .= "[name() = '$el']";
-                            }
-                            $tok = "";
-                            break;
-
-                        //TODO: bit of a hack attempt at matches support, currently only matches against elements
-                        case "matches":
-                            $pseudo_classes[$tok] = true;
-                            $p = $i + 1;
-                            $matchList = trim(mb_substr($selector, $p, strpos($selector, ")", $i) - $p));
-
-                            // Tag names are case-insensitive
-                            $elements = array_map("trim", explode(",", strtolower($matchList)));
-                            foreach ($elements as &$element) {
-                                $element = "name() = '$element'";
-                            }
-
-                            $query .= "[" . implode(" or ", $elements) . "]";
-                            $tok = "";
-                            break;
-
-                        case "link":
-                            $query .= "[@href]";
-                            $tok = "";
-                            break;
-
-                        case "first-line":
-                        case ":first-line":
-                        case "first-letter":
-                        case ":first-letter":
-                            // TODO
-                            $el = trim($tok, ":");
-                            $pseudo_elements[$el] = true;
-                            break;
-
-                            // N/A
-                        case "focus":
-                        case "active":
-                        case "hover":
-                        case "visited":
-                            $query .= "[false()]";
-                            $tok = "";
-                            break;
-
-                        /* Pseudo-elements */
-                        case "before":
-                        case ":before":
-                        case "after":
-                        case ":after":
-                            $pos = trim($tok, ":");
-                            $pseudo_elements[$pos] = true;
-                            if (!$first_pass) {
-                                $query .= "/*[@$pos]";
-                            }
-
-                            $tok = "";
-                            break;
-
-                        case "empty":
-                            $query .= "[not(*) and not(normalize-space())]";
-                            $tok = "";
-                            break;
-
-                        case "disabled":
-                        case "checked":
-                            $query .= "[@$tok]";
-                            $tok = "";
-                            break;
-
-                        case "enabled":
-                            $query .= "[not(@disabled)]";
-                            $tok = "";
-                            break;
-
-                        // the selector is not handled, until we support all possible selectors force an empty set (silent failure)
-                        default:
-                            $query = "/../.."; // go up two levels because generated content starts on the body element
-                            $tok = "";
-                            break;
-                    }
-
-                    break;
-
-                case "[":
-                    // Attribute selectors.  All with an attribute matching the following token(s)
-                    // https://www.w3.org/TR/selectors-3/#attribute-selectors
-                    $attr_delimiters = ["=", "]", "~", "|", "$", "^", "*"];
-                    $tok_len = mb_strlen($tok);
-                    $j = 0;
-
-                    $attr = "";
-                    $op = "";
-                    $value = "";
-
-                    while ($j < $tok_len) {
-                        if (in_array($tok[$j], $attr_delimiters)) {
-                            break;
-                        }
-                        $attr .= $tok[$j++];
-                    }
-
-                    switch ($tok[$j]) {
-
-                        case "~":
-                        case "|":
-                        case "$":
-                        case "^":
-                        case "*":
-                            $op .= $tok[$j++];
-
-                            if ($tok[$j] !== "=") {
-                                throw new Exception("Invalid CSS selector syntax: invalid attribute selector: $selector");
-                            }
-
-                            $op .= $tok[$j];
-                            break;
-
-                        case "=":
-                            $op = "=";
-                            break;
-
-                    }
-
-                    // Read the attribute value, if required
-                    if ($op != "") {
-                        $j++;
-                        while ($j < $tok_len) {
-                            if ($tok[$j] === "]") {
-                                break;
-                            }
-                            $value .= $tok[$j++];
-                        }
-                    }
-
-                    if ($attr == "") {
-                        throw new Exception("Invalid CSS selector syntax: missing attribute name");
-                    }
-
-                    $value = trim($value, "\"'");
-
-                    switch ($op) {
-
-                        case "":
-                            $query .= "[@$attr]";
-                            break;
-
-                        case "=":
-                            $query .= "[@$attr=\"$value\"]";
-                            break;
-
-                        case "~=":
-                            // FIXME: this will break if $value contains quoted strings
-                            // (e.g. [type~="a b c" "d e f"])
-                            // FIXME: Don't match anything if value contains
-                            // whitespace or is the empty string
-                            $query .= "[contains(concat(' ', normalize-space(@$attr), ' '), concat(' ', '$value', ' '))]";
-                            break;
-
-                        case "|=":
-                            $values = explode("-", $value);
-                            $query .= "[";
-
-                            foreach ($values as $val) {
-                                $query .= "starts-with(@$attr, \"$val\") or ";
-                            }
-
-                            $query = rtrim($query, " or ") . "]";
-                            break;
-
-                        case "$=":
-                            $query .= "[substring(@$attr, string-length(@$attr)-" . (strlen($value) - 1) . ")=\"$value\"]";
-                            break;
-
-                        case "^=":
-                            $query .= "[starts-with(@$attr,\"$value\")]";
-                            break;
-
-                        case "*=":
-                            $query .= "[contains(@$attr,\"$value\")]";
-                            break;
-                    }
-
-                    break;
-            }
-        }
-        $i++;
+	private static $_stylesheet_origins = [
+		self::ORIG_UA => 0x00000000, // user agent declarations
+		self::ORIG_USER => 0x10000000, // user normal declarations
+		self::ORIG_AUTHOR => 0x30000000, // author normal declarations
+	];
+
+	/**
+	 * Non-CSS presentational hints (i.e. HTML 4 attributes) are handled as if added
+	 * to the beginning of an author stylesheet, i.e. anything in author stylesheets
+	 * should override them.
+	 */
+	const SPEC_NON_CSS = 0x20000000;
+
+	/**
+	 * Current dompdf instance
+	 *
+	 * @var Dompdf
+	 */
+	private $_dompdf;
+
+	/**
+	 * Array of currently defined styles
+	 *
+	 * @var Style[]
+	 */
+	private $_styles;
+
+	/**
+	 * Base protocol of the document being parsed
+	 * Used to handle relative urls.
+	 *
+	 * @var string
+	 */
+	private $_protocol = "";
+
+	/**
+	 * Base hostname of the document being parsed
+	 * Used to handle relative urls.
+	 *
+	 * @var string
+	 */
+	private $_base_host = "";
+
+	/**
+	 * Base path of the document being parsed
+	 * Used to handle relative urls.
+	 *
+	 * @var string
+	 */
+	private $_base_path = "";
+
+	/**
+	 * The styles defined by @page rules
+	 *
+	 * @var array<Style>
+	 */
+	private $_page_styles;
+
+	/**
+	 * List of loaded files, used to prevent recursion
+	 *
+	 * @var array
+	 */
+	private $_loaded_files;
+
+	/**
+	 * Current stylesheet origin
+	 *
+	 * @var int
+	 */
+	private $_current_origin = self::ORIG_UA;
+
+	/**
+	 * Accepted CSS media types
+	 * List of types and parsing rules for future extensions:
+	 * http://www.w3.org/TR/REC-html40/types.html
+	 *   screen, tty, tv, projection, handheld, print, braille, aural, all
+	 * The following are non standard extensions for undocumented specific environments.
+	 *   static, visual, bitmap, paged, dompdf
+	 * Note, even though the generated pdf file is intended for print output,
+	 * the desired content might be different (e.g. screen or projection view of html file).
+	 * Therefore allow specification of content by dompdf setting Options::defaultMediaType.
+	 * If given, replace media "print" by Options::defaultMediaType.
+	 * (Previous version $ACCEPTED_MEDIA_TYPES = $ACCEPTED_GENERIC_MEDIA_TYPES + $ACCEPTED_DEFAULT_MEDIA_TYPE)
+	 */
+	static $ACCEPTED_DEFAULT_MEDIA_TYPE = "print";
+	static $ACCEPTED_GENERIC_MEDIA_TYPES = ["all", "static", "visual", "bitmap", "paged", "dompdf"];
+	static $VALID_MEDIA_TYPES = ["all", "aural", "bitmap", "braille", "dompdf", "embossed", "handheld", "paged", "print", "projection", "screen", "speech", "static", "tty", "tv", "visual"];
+
+	/**
+	 * @var FontMetrics
+	 */
+	private $fontMetrics;
+
+	/**
+	 * The class constructor.
+	 *
+	 * The base protocol, host & path are initialized to those of
+	 * the current script.
+	 */
+	function __construct(Dompdf $dompdf)
+	{
+		$this->_dompdf = $dompdf;
+		$this->setFontMetrics($dompdf->getFontMetrics());
+		$this->_styles = [];
+		$this->_loaded_files = [];
+		$script = __FILE__;
+		if (isset($_SERVER["SCRIPT_FILENAME"])) {
+			$script = $_SERVER["SCRIPT_FILENAME"];
+		}
+		list($this->_protocol, $this->_base_host, $this->_base_path) = Helpers::explode_url($script);
+		$this->_page_styles = ["base" => new Style($this)];
+	}
+
+	/**
+	 * Set the base protocol
+	 *
+	 * @param string $protocol
+	 */
+	function set_protocol(string $protocol)
+	{
+		$this->_protocol = $protocol;
+	}
+
+	/**
+	 * Set the base host
+	 *
+	 * @param string $host
+	 */
+	function set_host(string $host)
+	{
+		$this->_base_host = $host;
+	}
+
+	/**
+	 * Set the base path
+	 *
+	 * @param string $path
+	 */
+	function set_base_path(string $path)
+	{
+		$this->_base_path = $path;
+	}
+
+	/**
+	 * Return the Dompdf object
+	 *
+	 * @return Dompdf
+	 */
+	function get_dompdf()
+	{
+		return $this->_dompdf;
+	}
+
+	/**
+	 * Return the base protocol for this stylesheet
+	 *
+	 * @return string
+	 */
+	function get_protocol()
+	{
+		return $this->_protocol;
+	}
+
+	/**
+	 * Return the base host for this stylesheet
+	 *
+	 * @return string
+	 */
+	function get_host()
+	{
+		return $this->_base_host;
+	}
+
+	/**
+	 * Return the base path for this stylesheet
+	 *
+	 * @return string
+	 */
+	function get_base_path()
+	{
+		return $this->_base_path;
+	}
+
+	/**
+	 * Return the array of page styles
+	 *
+	 * @return Style[]
+	 */
+	function get_page_styles()
+	{
+		return $this->_page_styles;
+	}
+
+	/**
+	 * Create a new Style object associated with this stylesheet
+	 *
+	 * @return Style
+	 */
+	function create_style(): Style
+	{
+		return new Style($this, $this->_current_origin);
+	}
+
+	/**
+	 * Add a new Style object to the stylesheet
+	 *
+	 * The style's origin is changed to the current origin of the stylesheet.
+	 *
+	 * @param string $key the Style's selector
+	 * @param Style $style the Style to be added
+	 */
+	function add_style(string $key, Style $style): void
+	{
+		if (!isset($this->_styles[$key])) {
+			$this->_styles[$key] = [];
+		}
+
+		$style->set_origin($this->_current_origin);
+		$this->_styles[$key][] = $style;
+	}
+
+	/**
+	 * load and parse a CSS string
+	 *
+	 * @param string $css
+	 * @param int $origin
+	 */
+	function load_css(&$css, $origin = self::ORIG_AUTHOR)
+	{
+		if ($origin) {
+			$this->_current_origin = $origin;
+		}
+		$this->_parse_css($css);
+	}
+
+	/**
+	 * load and parse a CSS file
+	 *
+	 * @param string $file
+	 * @param int $origin
+	 */
+	function load_css_file($file, $origin = self::ORIG_AUTHOR)
+	{
+		if ($origin) {
+			$this->_current_origin = $origin;
+		}
+
+		// Prevent circular references
+		if (isset($this->_loaded_files[$file])) {
+			return;
+		}
+
+		$this->_loaded_files[$file] = true;
+
+		if (strpos($file, "data:") === 0) {
+			$parsed = Helpers::parse_data_uri($file);
+			$css = $parsed["data"];
+		} else {
+			$options = $this->_dompdf->getOptions();
+
+			$parsed_url = Helpers::explode_url($file);
+			$protocol = $parsed_url["protocol"];
+
+			if ($file !== $this->getDefaultStylesheet()) {
+				$allowed_protocols = $options->getAllowedProtocols();
+				if (!array_key_exists($protocol, $allowed_protocols)) {
+					Helpers::record_warnings(E_USER_WARNING, "Permission denied on $file. The communication protocol is not supported.", __FILE__, __LINE__);
+					return;
+				}
+				foreach ($allowed_protocols[$protocol]["rules"] as $rule) {
+					[$result, $message] = $rule($file);
+					if (!$result) {
+						Helpers::record_warnings(E_USER_WARNING, "Error loading $file: $message", __FILE__, __LINE__);
+						return;
+					}
+				}
+			}
+
+			[$css, $http_response_header] = Helpers::getFileContent($file, $this->_dompdf->getHttpContext());
+
+			$good_mime_type = true;
+
+			// See http://the-stickman.com/web-development/php/getting-http-response-headers-when-using-file_get_contents/
+			if (isset($http_response_header) && !$this->_dompdf->getQuirksmode()) {
+				foreach ($http_response_header as $_header) {
+					if (preg_match("@Content-Type:\s*([\w/]+)@i", $_header, $matches) &&
+						($matches[1] !== "text/css")
+					) {
+						$good_mime_type = false;
+					}
+				}
+			}
+			if (!$good_mime_type || $css === null) {
+				Helpers::record_warnings(E_USER_WARNING, "Unable to load css file $file", __FILE__, __LINE__);
+				return;
+			}
+
+			[$this->_protocol, $this->_base_host, $this->_base_path] = $parsed_url;
+		}
+
+		$this->_parse_css($css);
+	}
+
+	/**
+	 * @link http://www.w3.org/TR/CSS21/cascade.html#specificity
+	 *
+	 * @param string $selector
+	 * @param int $origin :
+	 *    - Stylesheet::ORIG_UA: user agent style sheet
+	 *    - Stylesheet::ORIG_USER: user style sheet
+	 *    - Stylesheet::ORIG_AUTHOR: author style sheet
+	 *
+	 * @return int
+	 */
+	private function _specificity($selector, $origin = self::ORIG_AUTHOR)
+	{
+		// http://www.w3.org/TR/CSS21/cascade.html#specificity
+		// ignoring the ":" pseudoclass modifiers
+		// also ignored in _css_selector_to_xpath
+
+		$a = ($selector === "!attr") ? 1 : 0;
+
+		$b = min(mb_substr_count($selector, "#"), 255);
+
+		$c = min(mb_substr_count($selector, ".") +
+			mb_substr_count($selector, "["), 255);
+
+		$d = min(mb_substr_count($selector, " ") +
+			mb_substr_count($selector, ">") +
+			mb_substr_count($selector, "+") +
+			mb_substr_count($selector, "~") -
+			mb_substr_count($selector, "~="), 255);
+
+		//If a normal element name is at the beginning of the string,
+		//a leading whitespace might have been removed on whitespace collapsing and removal
+		//therefore there might be one whitespace less as selected element names
+		//this can lead to a too small specificity
+		//see _css_selector_to_xpath
+
+		if (!in_array($selector[0], [" ", ">", ".", "#", "+", "~", ":", "["]) && $selector !== "*") {
+			$d++;
+		}
+
+		if ($this->_dompdf->getOptions()->getDebugCss()) {
+			/*DEBUGCSS*/
+			print "<pre>\n";
+			/*DEBUGCSS*/
+			printf("_specificity(): 0x%08x \"%s\"\n", self::$_stylesheet_origins[$origin] + (($a << 24) | ($b << 16) | ($c << 8) | ($d)), $selector);
+			/*DEBUGCSS*/
+			print "</pre>";
+		}
+
+		return self::$_stylesheet_origins[$origin] + (($a << 24) | ($b << 16) | ($c << 8) | ($d));
+	}
+
+	/**
+	 * Converts a CSS selector to an XPath query.
+	 *
+	 * @param string $selector
+	 * @param bool $first_pass
+	 *
+	 * @throws Exception
+	 * @return array
+	 */
+	private function _css_selector_to_xpath(string $selector, bool $first_pass = false): array
+	{
+		// Collapse white space and strip whitespace around delimiters
+		//$search = array("/\\s+/", "/\\s+([.>#+:])\\s+/");
+		//$replace = array(" ", "\\1");
+		//$selector = preg_replace($search, $replace, trim($selector));
+
+		// Initial query (non-absolute)
+		$query = "//";
+
+		// Will contain :before and :after
+		$pseudo_elements = [];
+
+		// Will contain :link, etc
+		$pseudo_classes = [];
+
+		// Parse the selector
+		//$s = preg_split("/([ :>.#+])/", $selector, -1, PREG_SPLIT_DELIM_CAPTURE);
+
+		$delimiters = [" ", ">", ".", "#", "+", "~", ":", "[", "("];
+
+		// Add an implicit * at the beginning of the selector
+		// if it begins with an attribute selector
+		if ($selector[0] === "[") {
+			$selector = "*$selector";
+		}
+
+		// Add an implicit space at the beginning of the selector if there is no
+		// delimiter there already.
+		if (!in_array($selector[0], $delimiters)) {
+			$selector = " $selector";
+		}
+
+		$tok = "";
+		$len = mb_strlen($selector);
+		$i = 0;
+
+		while ($i < $len) {
+
+			$s = $selector[$i];
+			$i++;
+
+			// Eat characters up to the next delimiter
+			$tok = "";
+			$in_attr = false;
+			$in_func = false;
+
+			while ($i < $len) {
+				$c = $selector[$i];
+				$c_prev = $selector[$i - 1];
+
+				if (!$in_func && !$in_attr && in_array($c, $delimiters) && !(($c == $c_prev) == ":")) {
+					break;
+				}
+
+				if ($c_prev === "[") {
+					$in_attr = true;
+				}
+				if ($c_prev === "(") {
+					$in_func = true;
+				}
+
+				$tok .= $selector[$i++];
+
+				if ($in_attr && $c === "]") {
+					$in_attr = false;
+					break;
+				}
+				if ($in_func && $c === ")") {
+					$in_func = false;
+					break;
+				}
+			}
+
+			switch ($s) {
+
+				case " ":
+				case ">":
+					// All elements matching the next token that are direct children of
+					// the current token
+					$expr = $s === " " ? "descendant" : "child";
+
+					if (mb_substr($query, -1, 1) !== "/") {
+						$query .= "/";
+					}
+
+					// Tag names are case-insensitive
+					$tok = strtolower($tok);
+
+					if (!$tok) {
+						$tok = "*";
+					}
+
+					$query .= "$expr::$tok";
+					$tok = "";
+					break;
+
+				case ".":
+				case "#":
+					// All elements matching the current token with a class/id equal to
+					// the _next_ token.
+
+					$attr = $s === "." ? "class" : "id";
+
+					// empty class/id == *
+					if (mb_substr($query, -1, 1) === "/") {
+						$query .= "*";
+					}
+
+					// Match multiple classes: $tok contains the current selected
+					// class.  Search for class attributes with class="$tok",
+					// class=".* $tok .*" and class=".* $tok"
+
+					// This doesn't work because libxml only supports XPath 1.0...
+					//$query .= "[matches(@$attr,\"^{$tok}\$|^{$tok}[ ]+|[ ]+{$tok}\$|[ ]+{$tok}[ ]+\")]";
+
+					$query .= "[contains(concat(' ', normalize-space(@$attr), ' '), concat(' ', '$tok', ' '))]";
+					$tok = "";
+					break;
+
+				case "+":
+				case "~":
+					// Next-sibling combinator
+					// Subsequent-sibling combinator
+					// https://www.w3.org/TR/selectors-3/#sibling-combinators
+					if (mb_substr($query, -1, 1) !== "/") {
+						$query .= "/";
+					}
+
+					// Tag names are case-insensitive
+					$tok = strtolower($tok);
+
+					if (!$tok) {
+						$tok = "*";
+					}
+
+					$query .= "following-sibling::$tok";
+
+					if ($s === "+") {
+						$query .= "[1]";
+					}
+
+					$tok = "";
+					break;
+
+				case ":":
+					$i2 = $i - strlen($tok) - 2; // the char before ":"
+					if (($i2 < 0 || !isset($selector[$i2]) || (in_array($selector[$i2], $delimiters) && $selector[$i2] != ":")) && substr($query, -1) != "*") {
+						$query .= "*";
+					}
+
+					$last = false;
+
+					// Pseudo-classes
+					switch ($tok) {
+
+						case "first-child":
+							$query .= "[not(preceding-sibling::*)]";
+							$tok = "";
+							break;
+
+						case "last-child":
+							$query .= "[not(following-sibling::*)]";
+							$tok = "";
+							break;
+
+						case "first-of-type":
+							$query .= "[position() = 1]";
+							$tok = "";
+							break;
+
+						case "last-of-type":
+							$query .= "[position() = last()]";
+							$tok = "";
+							break;
+
+						// an+b, n, odd, and even
+						/** @noinspection PhpMissingBreakStatementInspection */
+						case "nth-last-of-type":
+							$last = true;
+						case "nth-of-type":
+							//FIXME: this fix-up is pretty ugly, would parsing the selector in reverse work better generally?
+							$descendant_delimeter = strrpos($query, "::");
+							$isChild = substr($query, $descendant_delimeter-5, 5) == "child";
+							$el = substr($query, $descendant_delimeter+2);
+							$query = substr($query, 0, strrpos($query, "/")) . ($isChild ? "/" : "//") . $el;
+
+							$pseudo_classes[$tok] = true;
+							$p = $i + 1;
+							$nth = trim(mb_substr($selector, $p, strpos($selector, ")", $i) - $p));
+							$position = $last ? "(last()-position()+1)" : "position()";
+
+							// 1
+							if (preg_match("/^\d+$/", $nth)) {
+								$condition = "$position = $nth";
+							} // odd
+							elseif ($nth === "odd") {
+								$condition = "($position mod 2) = 1";
+							} // even
+							elseif ($nth === "even") {
+								$condition = "($position mod 2) = 0";
+							} // an+b
+							else {
+								$condition = $this->_selector_an_plus_b($nth, $last);
+							}
+
+							$query .= "[$condition]";
+							$tok = "";
+							break;
+						/** @noinspection PhpMissingBreakStatementInspection */
+						case "nth-last-child":
+							$last = true;
+						case "nth-child":
+							//FIXME: this fix-up is pretty ugly, would parsing the selector in reverse work better generally?
+							$descendant_delimeter = strrpos($query, "::");
+							$isChild = substr($query, $descendant_delimeter-5, 5) == "child";
+							$el = substr($query, $descendant_delimeter+2);
+							$query = substr($query, 0, strrpos($query, "/")) . ($isChild ? "/" : "//") . "*";
+
+							$pseudo_classes[$tok] = true;
+							$p = $i + 1;
+							$nth = trim(mb_substr($selector, $p, strpos($selector, ")", $i) - $p));
+							$position = $last ? "(last()-position()+1)" : "position()";
+
+							// 1
+							if (preg_match("/^\d+$/", $nth)) {
+								$condition = "$position = $nth";
+							} // odd
+							elseif ($nth === "odd") {
+								$condition = "($position mod 2) = 1";
+							} // even
+							elseif ($nth === "even") {
+								$condition = "($position mod 2) = 0";
+							} // an+b
+							else {
+								$condition = $this->_selector_an_plus_b($nth, $last);
+							}
+
+							$query .= "[$condition]";
+							if ($el != "*") {
+								$query .= "[name() = '$el']";
+							}
+							$tok = "";
+							break;
+
+						//TODO: bit of a hack attempt at matches support, currently only matches against elements
+						case "matches":
+							$pseudo_classes[$tok] = true;
+							$p = $i + 1;
+							$matchList = trim(mb_substr($selector, $p, strpos($selector, ")", $i) - $p));
+
+							// Tag names are case-insensitive
+							$elements = array_map("trim", explode(",", strtolower($matchList)));
+							foreach ($elements as &$element) {
+								$element = "name() = '$element'";
+							}
+
+							$query .= "[" . implode(" or ", $elements) . "]";
+							$tok = "";
+							break;
+
+						case "link":
+							$query .= "[@href]";
+							$tok = "";
+							break;
+
+						case "first-line":
+						case ":first-line":
+						case "first-letter":
+						case ":first-letter":
+							// TODO
+							$el = trim($tok, ":");
+							$pseudo_elements[$el] = true;
+							break;
+
+							// N/A
+						case "focus":
+						case "active":
+						case "hover":
+						case "visited":
+							$query .= "[false()]";
+							$tok = "";
+							break;
+
+						/* Pseudo-elements */
+						case "before":
+						case ":before":
+						case "after":
+						case ":after":
+							$pos = trim($tok, ":");
+							$pseudo_elements[$pos] = true;
+							if (!$first_pass) {
+								$query .= "/*[@$pos]";
+							}
+
+							$tok = "";
+							break;
+
+						case "empty":
+							$query .= "[not(*) and not(normalize-space())]";
+							$tok = "";
+							break;
+
+						case "disabled":
+						case "checked":
+							$query .= "[@$tok]";
+							$tok = "";
+							break;
+
+						case "enabled":
+							$query .= "[not(@disabled)]";
+							$tok = "";
+							break;
+
+						// the selector is not handled, until we support all possible selectors force an empty set (silent failure)
+						default:
+							$query = "/../.."; // go up two levels because generated content starts on the body element
+							$tok = "";
+							break;
+					}
+
+					break;
+
+				case "[":
+					// Attribute selectors.  All with an attribute matching the following token(s)
+					// https://www.w3.org/TR/selectors-3/#attribute-selectors
+					$attr_delimiters = ["=", "]", "~", "|", "$", "^", "*"];
+					$tok_len = mb_strlen($tok);
+					$j = 0;
+
+					$attr = "";
+					$op = "";
+					$value = "";
+
+					while ($j < $tok_len) {
+						if (in_array($tok[$j], $attr_delimiters)) {
+							break;
+						}
+						$attr .= $tok[$j++];
+					}
+
+					switch ($tok[$j]) {
+
+						case "~":
+						case "|":
+						case "$":
+						case "^":
+						case "*":
+							$op .= $tok[$j++];
+
+							if ($tok[$j] !== "=") {
+								throw new Exception("Invalid CSS selector syntax: invalid attribute selector: $selector");
+							}
+
+							$op .= $tok[$j];
+							break;
+
+						case "=":
+							$op = "=";
+							break;
+
+					}
+
+					// Read the attribute value, if required
+					if ($op != "") {
+						$j++;
+						while ($j < $tok_len) {
+							if ($tok[$j] === "]") {
+								break;
+							}
+							$value .= $tok[$j++];
+						}
+					}
+
+					if ($attr == "") {
+						throw new Exception("Invalid CSS selector syntax: missing attribute name");
+					}
+
+					$value = trim($value, "\"'");
+
+					switch ($op) {
+
+						case "":
+							$query .= "[@$attr]";
+							break;
+
+						case "=":
+							$query .= "[@$attr=\"$value\"]";
+							break;
+
+						case "~=":
+							// FIXME: this will break if $value contains quoted strings
+							// (e.g. [type~="a b c" "d e f"])
+							// FIXME: Don't match anything if value contains
+							// whitespace or is the empty string
+							$query .= "[contains(concat(' ', normalize-space(@$attr), ' '), concat(' ', '$value', ' '))]";
+							break;
+
+						case "|=":
+							$values = explode("-", $value);
+							$query .= "[";
+
+							foreach ($values as $val) {
+								$query .= "starts-with(@$attr, \"$val\") or ";
+							}
+
+							$query = rtrim($query, " or ") . "]";
+							break;
+
+						case "$=":
+							$query .= "[substring(@$attr, string-length(@$attr)-" . (strlen($value) - 1) . ")=\"$value\"]";
+							break;
+
+						case "^=":
+							$query .= "[starts-with(@$attr,\"$value\")]";
+							break;
+
+						case "*=":
+							$query .= "[contains(@$attr,\"$value\")]";
+							break;
+					}
+
+					break;
+			}
+		}
+		$i++;
 
 //       case ":":
 //         // Pseudo selectors: ignore for now.  Partially handled directly
@@ -876,814 +876,814 @@ 
 //    }
 
 
-        // Trim the trailing '/' from the query
-        if (mb_strlen($query) > 2) {
-            $query = rtrim($query, "/");
-        }
-
-        return ['query' => $query, 'pseudo_elements' => $pseudo_elements];
-    }
-
-    /**
-     * https://github.com/tenderlove/nokogiri/blob/master/lib/nokogiri/css/xpath_visitor.rb
-     *
-     * @param string $expr
-     * @param bool $last
-     *
-     * @return string
-     */
-    protected function _selector_an_plus_b(string $expr, bool $last = false): string
-    {
-        $expr = preg_replace("/\s/", "", $expr);
-        if (!preg_match("/^(?P<a>-?[0-9]*)?n(?P<b>[-+]?[0-9]+)?$/", $expr, $matches)) {
-            return "false()";
-        }
-
-        $a = (isset($matches["a"]) && $matches["a"] !== "") ? ($matches["a"] !== "-" ? intval($matches["a"]) : -1) : 1;
-        $b = (isset($matches["b"]) && $matches["b"] !== "") ? intval($matches["b"]) : 0;
-
-        $position = $last ? "(last()-position()+1)" : "position()";
-
-        if ($b == 0) {
-            return "($position mod $a) = 0";
-        } else {
-            $compare = ($a < 0) ? "<=" : ">=";
-            $b2 = -$b;
-            if ($b2 >= 0) {
-                $b2 = "+$b2";
-            }
-            return "($position $compare $b) and ((($position $b2) mod " . abs($a) . ") = 0)";
-        }
-    }
-
-    /**
-     * applies all current styles to a particular document tree
-     *
-     * apply_styles() applies all currently loaded styles to the provided
-     * {@link FrameTree}.  Aside from parsing CSS, this is the main purpose
-     * of this class.
-     *
-     * @param \Dompdf\Frame\FrameTree $tree
-     */
-    function apply_styles(FrameTree $tree)
-    {
-        // Use XPath to select nodes.  This would be easier if we could attach
-        // Frame objects directly to DOMNodes using the setUserData() method, but
-        // we can't do that just yet.  Instead, we set a _node attribute_ in
-        // Frame->set_id() and use that as a handle on the Frame object via
-        // FrameTree::$_registry.
-
-        // We create a scratch array of styles indexed by frame id.  Once all
-        // styles have been assigned, we order the cached styles by specificity
-        // and create a final style object to assign to the frame.
-
-        // FIXME: this is not particularly robust...
-
-        $styles = [];
-        $xp = new DOMXPath($tree->get_dom());
-        $DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
-
-        // Add generated content
-        foreach ($this->_styles as $selector => $selector_styles) {
-            /** @var Style $style */
-            foreach ($selector_styles as $style) {
-                if (strpos($selector, ":before") === false && strpos($selector, ":after") === false) {
-                    continue;
-                }
-
-                $query = $this->_css_selector_to_xpath($selector, true);
-
-                // Retrieve the nodes, limit to body for generated content
-                //TODO: If we use a context node can we remove the leading dot?
-                $nodes = @$xp->query('.' . $query["query"]);
-                if ($nodes === false) {
-                    Helpers::record_warnings(E_USER_WARNING, "The CSS selector '$selector' is not valid", __FILE__, __LINE__);
-                    continue;
-                }
-
-                /** @var \DOMElement $node */
-                foreach ($nodes as $node) {
-                    // Only DOMElements get styles
-                    if ($node->nodeType != XML_ELEMENT_NODE) {
-                        continue;
-                    }
-
-                    foreach (array_keys($query["pseudo_elements"], true, true) as $pos) {
-                        // Do not add a new pseudo element if another one already matched
-                        if ($node->hasAttribute("dompdf_{$pos}_frame_id")) {
-                            continue;
-                        }
-
-                        $content = $style->get_specified("content");
-
-                        // Do not create non-displayed before/after pseudo elements
-                        // https://www.w3.org/TR/CSS21/generate.html#content
-                        // https://www.w3.org/TR/CSS21/generate.html#undisplayed-counters
-                        if ($content === "normal" || $content === "none") {
-                            continue;
-                        }
-
-                        if (($src = $this->resolve_url($content)) !== "none") {
-                            $new_node = $node->ownerDocument->createElement("img_generated");
-                            $new_node->setAttribute("src", $src);
-                        } else {
-                            $new_node = $node->ownerDocument->createElement("dompdf_generated");
-                        }
-
-                        $new_node->setAttribute($pos, $pos);
-                        $new_frame_id = $tree->insert_node($node, $new_node, $pos);
-                        $node->setAttribute("dompdf_{$pos}_frame_id", $new_frame_id);
-                    }
-                }
-            }
-        }
-
-        // Apply all styles in stylesheet
-        foreach ($this->_styles as $selector => $selector_styles) {
-            /** @var Style $style */
-            foreach ($selector_styles as $style) {
-                $query = $this->_css_selector_to_xpath($selector);
-
-                // Retrieve the nodes
-                $nodes = @$xp->query($query["query"]);
-                if ($nodes === false) {
-                    Helpers::record_warnings(E_USER_WARNING, "The CSS selector '$selector' is not valid", __FILE__, __LINE__);
-                    continue;
-                }
-
-                $spec = $this->_specificity($selector, $style->get_origin());
-
-                foreach ($nodes as $node) {
-                    // Retrieve the node id
-                    // Only DOMElements get styles
-                    if ($node->nodeType != XML_ELEMENT_NODE) {
-                        continue;
-                    }
-
-                    $id = $node->getAttribute("frame_id");
-
-                    // Assign the current style to the scratch array
-                    $styles[$id][$spec][] = $style;
-                }
-            }
-        }
-
-        // Set the page width, height, and orientation based on the canvas paper size
-        $canvas = $this->_dompdf->getCanvas();
-        $paper_width = $canvas->get_width();
-        $paper_height = $canvas->get_height();
-        $paper_orientation = ($paper_width > $paper_height ? "landscape" : "portrait");
-
-        if ($this->_page_styles["base"] && is_array($this->_page_styles["base"]->size)) {
-            $paper_width = $this->_page_styles['base']->size[0];
-            $paper_height = $this->_page_styles['base']->size[1];
-            $paper_orientation = ($paper_width > $paper_height ? "landscape" : "portrait");
-        }
-
-        // Now create the styles and assign them to the appropriate frames. (We
-        // iterate over the tree using an implicit FrameTree iterator.)
-        $root_flg = false;
-        foreach ($tree as $frame) {
-            // Helpers::pre_r($frame->get_node()->nodeName . ":");
-            if (!$root_flg && $this->_page_styles["base"]) {
-                $style = $this->_page_styles["base"];
-            } else {
-                $style = $this->create_style();
-            }
-
-            // Find nearest DOMElement parent
-            $p = $frame;
-            while ($p = $p->get_parent()) {
-                if ($p->get_node()->nodeType === XML_ELEMENT_NODE) {
-                    break;
-                }
-            }
-
-            // Styles can only be applied directly to DOMElements; anonymous
-            // frames inherit from their parent
-            if ($frame->get_node()->nodeType !== XML_ELEMENT_NODE) {
-                $style->inherit($p ? $p->get_style() : null);
-                $frame->set_style($style);
-                continue;
-            }
-
-            $id = $frame->get_id();
-
-            // Handle HTML 4.0 attributes
-            AttributeTranslator::translate_attributes($frame);
-            if (($str = $frame->get_node()->getAttribute(AttributeTranslator::$_style_attr)) !== "") {
-                $styles[$id][self::SPEC_NON_CSS][] = $this->_parse_properties($str);
-            }
-
-            // Locate any additional style attributes
-            if (($str = $frame->get_node()->getAttribute("style")) !== "") {
-                // Destroy CSS comments
-                $str = preg_replace("'/\*.*?\*/'si", "", $str);
-
-                $spec = $this->_specificity("!attr", self::ORIG_AUTHOR);
-                $styles[$id][$spec][] = $this->_parse_properties($str);
-            }
-
-            // Grab the applicable styles
-            if (isset($styles[$id])) {
-
-                /** @var array[][] $applied_styles */
-                $applied_styles = $styles[$id];
-
-                // Sort by specificity
-                ksort($applied_styles);
-
-                if ($DEBUGCSS) {
-                    $debug_nodename = $frame->get_node()->nodeName;
-                    print "<pre>\n$debug_nodename [\n";
-                    foreach ($applied_styles as $spec => $arr) {
-                        printf("  specificity 0x%08x\n", $spec);
-                        /** @var Style $s */
-                        foreach ($arr as $s) {
-                            print "  [\n";
-                            $s->debug_print();
-                            print "  ]\n";
-                        }
-                    }
-                }
-
-                // Merge the new styles with the inherited styles
-                $acceptedmedia = self::$ACCEPTED_GENERIC_MEDIA_TYPES;
-                $acceptedmedia[] = $this->_dompdf->getOptions()->getDefaultMediaType();
-                foreach ($applied_styles as $arr) {
-                    /** @var Style $s */
-                    foreach ($arr as $s) {
-                        $media_queries = $s->get_media_queries();
-                        foreach ($media_queries as $media_query) {
-                            list($media_query_feature, $media_query_value) = $media_query;
-                            // if any of the Style's media queries fail then do not apply the style
-                            //TODO: When the media query logic is fully developed we should not apply the Style when any of the media queries fail or are bad, per https://www.w3.org/TR/css3-mediaqueries/#error-handling
-                            if (in_array($media_query_feature, self::$VALID_MEDIA_TYPES)) {
-                                if ((strlen($media_query_feature) === 0 && !in_array($media_query, $acceptedmedia)) || (in_array($media_query, $acceptedmedia) && $media_query_value == "not")) {
-                                    continue (3);
-                                }
-                            } else {
-                                switch ($media_query_feature) {
-                                    case "height":
-                                        if ($paper_height !== (float)$style->length_in_pt($media_query_value)) {
-                                            continue (3);
-                                        }
-                                        break;
-                                    case "min-height":
-                                        if ($paper_height < (float)$style->length_in_pt($media_query_value)) {
-                                            continue (3);
-                                        }
-                                        break;
-                                    case "max-height":
-                                        if ($paper_height > (float)$style->length_in_pt($media_query_value)) {
-                                            continue (3);
-                                        }
-                                        break;
-                                    case "width":
-                                        if ($paper_width !== (float)$style->length_in_pt($media_query_value)) {
-                                            continue (3);
-                                        }
-                                        break;
-                                    case "min-width":
-                                        //if (min($paper_width, $media_query_width) === $paper_width) {
-                                        if ($paper_width < (float)$style->length_in_pt($media_query_value)) {
-                                            continue (3);
-                                        }
-                                        break;
-                                    case "max-width":
-                                        //if (max($paper_width, $media_query_width) === $paper_width) {
-                                        if ($paper_width > (float)$style->length_in_pt($media_query_value)) {
-                                            continue (3);
-                                        }
-                                        break;
-                                    case "orientation":
-                                        if ($paper_orientation !== $media_query_value) {
-                                            continue (3);
-                                        }
-                                        break;
-                                    default:
-                                        Helpers::record_warnings(E_USER_WARNING, "Unknown media query: $media_query_feature", __FILE__, __LINE__);
-                                        break;
-                                }
-                            }
-                        }
-
-                        $style->merge($s);
-                    }
-                }
-            }
-
-            // Handle inheritance
-            if ($p && $DEBUGCSS) {
-                print "  inherit [\n";
-                $p->get_style()->debug_print();
-                print "  ]\n";
-            }
-
-            $style->inherit($p ? $p->get_style() : null);
-
-            if ($DEBUGCSS) {
-                print "  DomElementStyle [\n";
-                $style->debug_print();
-                print "  ]\n";
-                print "]\n</pre>";
-            }
-
-            $style->clear_important();
-            $frame->set_style($style);
-
-            if (!$root_flg && $this->_page_styles["base"]) {
-                $root_flg = true;
-
-                // set the page width, height, and orientation based on the parsed page style
-                if ($style->size !== "auto") {
-                    list($paper_width, $paper_height) = $style->size;
-                }
-                $paper_width = $paper_width - (float)$style->length_in_pt($style->margin_left) - (float)$style->length_in_pt($style->margin_right);
-                $paper_height = $paper_height - (float)$style->length_in_pt($style->margin_top) - (float)$style->length_in_pt($style->margin_bottom);
-                $paper_orientation = ($paper_width > $paper_height ? "landscape" : "portrait");
-            }
-        }
-
-        // We're done!  Clean out the registry of all styles since we
-        // won't be needing this later.
-        foreach (array_keys($this->_styles) as $key) {
-            $this->_styles[$key] = null;
-            unset($this->_styles[$key]);
-        }
-    }
-
-    /**
-     * parse a CSS string using a regex parser
-     * Called by {@link Stylesheet::parse_css()}
-     *
-     * @param string $str
-     *
-     * @throws Exception
-     */
-    private function _parse_css($str)
-    {
-        $str = trim($str);
-
-        // Destroy comments and remove HTML comments
-        $css = preg_replace([
-            "'/\*.*?\*/'si",
-            "/^<!--/",
-            "/-->$/"
-        ], "", $str);
-
-        // FIXME: handle '{' within strings, e.g. [attr="string {}"]
-
-        // Something more legible:
-        $re =
-            "/\s*                                   # Skip leading whitespace                             \n" .
-            "( @([^\s{]+)\s*([^{;]*) (?:;|({)) )?   # Match @rules followed by ';' or '{'                 \n" .
-            "(?(1)                                  # Only parse sub-sections if we're in an @rule...     \n" .
-            "  (?(4)                                # ...and if there was a leading '{'                   \n" .
-            "    \s*( (?:(?>[^{}]+) ({)?            # Parse rulesets and individual @page rules           \n" .
-            "            (?(6) (?>[^}]*) }) \s*)+?                                                        \n" .
-            "       )                                                                                     \n" .
-            "   })                                  # Balancing '}'                                       \n" .
-            "|                                      # Branch to match regular rules (not preceded by '@') \n" .
-            "([^{]*{[^}]*}))                        # Parse normal rulesets                               \n" .
-            "/xs";
-
-        if (preg_match_all($re, $css, $matches, PREG_SET_ORDER) === false) {
-            // An error occurred
-            throw new Exception("Error parsing css file: preg_match_all() failed.");
-        }
-
-        // After matching, the array indices are set as follows:
-        //
-        // [0] => complete text of match
-        // [1] => contains '@import ...;' or '@media {' if applicable
-        // [2] => text following @ for cases where [1] is set
-        // [3] => media types or full text following '@import ...;'
-        // [4] => '{', if present
-        // [5] => rulesets within media rules
-        // [6] => '{', within media rules
-        // [7] => individual rules, outside of media rules
-        //
-
-        $media_query_regex = "/(?:((only|not)?\s*(" . implode("|", self::$VALID_MEDIA_TYPES) . "))|(\s*\(\s*((?:(min|max)-)?([\w\-]+))\s*(?:\:\s*(.*?)\s*)?\)))/isx";
-
-        //Helpers::pre_r($matches);
-        foreach ($matches as $match) {
-            $match[2] = trim($match[2]);
-
-            if ($match[2] !== "") {
-                // Handle @rules
-                switch ($match[2]) {
-
-                    case "import":
-                        $this->_parse_import($match[3]);
-                        break;
-
-                    case "media":
-                        $acceptedmedia = self::$ACCEPTED_GENERIC_MEDIA_TYPES;
-                        $acceptedmedia[] = $this->_dompdf->getOptions()->getDefaultMediaType();
-
-                        $media_queries = preg_split("/\s*,\s*/", mb_strtolower(trim($match[3])));
-                        foreach ($media_queries as $media_query) {
-                            if (in_array($media_query, $acceptedmedia)) {
-                                //if we have a media type match go ahead and parse the stylesheet
-                                $this->_parse_sections($match[5]);
-                                break;
-                            } elseif (!in_array($media_query, self::$VALID_MEDIA_TYPES)) {
-                                // otherwise conditionally parse the stylesheet assuming there are parseable media queries
-                                if (preg_match_all($media_query_regex, $media_query, $media_query_matches, PREG_SET_ORDER) !== false) {
-                                    $mq = [];
-                                    foreach ($media_query_matches as $media_query_match) {
-                                        if (empty($media_query_match[1]) === false) {
-                                            $media_query_feature = strtolower($media_query_match[3]);
-                                            $media_query_value = strtolower($media_query_match[2]);
-                                            $mq[] = [$media_query_feature, $media_query_value];
-                                        } elseif (empty($media_query_match[4]) === false) {
-                                            $media_query_feature = strtolower($media_query_match[5]);
-                                            $media_query_value = (array_key_exists(8, $media_query_match) ? strtolower($media_query_match[8]) : null);
-                                            $mq[] = [$media_query_feature, $media_query_value];
-                                        }
-                                    }
-                                    $this->_parse_sections($match[5], $mq);
-                                    break;
-                                }
-                            }
-                        }
-                        break;
-
-                    case "page":
-                        //This handles @page to be applied to page oriented media
-                        //Note: This has a reduced syntax:
-                        //@page { margin:1cm; color:blue; }
-                        //Not a sequence of styles like a full.css, but only the properties
-                        //of a single style, which is applied to the very first "root" frame before
-                        //processing other styles of the frame.
-                        //Working properties:
-                        // margin (for margin around edge of paper)
-                        // font-family (default font of pages)
-                        // color (default text color of pages)
-                        //Non working properties:
-                        // border
-                        // padding
-                        // background-color
-                        //Todo:Reason is unknown
-                        //Other properties (like further font or border attributes) not tested.
-                        //If a border or background color around each paper sheet is desired,
-                        //assign it to the <body> tag, possibly only for the css of the correct media type.
-
-                        // If the page has a name, skip the style.
-                        $page_selector = trim($match[3]);
-
-                        $key = null;
-                        switch ($page_selector) {
-                            case "":
-                                $key = "base";
-                                break;
-
-                            case ":left":
-                            case ":right":
-                            case ":odd":
-                            case ":even":
-                            /** @noinspection PhpMissingBreakStatementInspection */
-                            case ":first":
-                                $key = $page_selector;
-                                break;
-
-                            default:
-                                break 2;
-                        }
-
-                        // Store the style for later...
-                        if (empty($this->_page_styles[$key])) {
-                            $this->_page_styles[$key] = $this->_parse_properties($match[5]);
-                        } else {
-                            $this->_page_styles[$key]->merge($this->_parse_properties($match[5]));
-                        }
-                        break;
-
-                    case "font-face":
-                        $this->_parse_font_face($match[5]);
-                        break;
-
-                    default:
-                        // ignore everything else
-                        break;
-                }
-
-                continue;
-            }
-
-            if ($match[7] !== "") {
-                $this->_parse_sections($match[7]);
-            }
-        }
-    }
-
-    /**
-     * Resolve the given `url()` declaration to an absolute URL.
-     *
-     * @param string|null $val The declaration to resolve in the context of the stylesheet.
-     * @return string The resolved URL, or `none`, if the value is `none`,
-     *         invalid, or points to a non-existent local file.
-     */
-    public function resolve_url($val): string
-    {
-        $DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
-        $parsed_url = "none";
-
-        if (empty($val) || $val === "none") {
-            $path = "none";
-        } elseif (mb_strpos($val, "url") === false) {
-            $path = "none"; //Don't resolve no image -> otherwise would prefix path and no longer recognize as none
-        } else {
-            $val = preg_replace("/url\(\s*['\"]?([^'\")]+)['\"]?\s*\)/", "\\1", trim($val));
-
-            // Resolve the url now in the context of the current stylesheet
-            $path = Helpers::build_url($this->_protocol,
-                $this->_base_host,
-                $this->_base_path,
-                $val);
-            if ($path === null) {
-                $path = "none";
-            }
-        }
-        if ($DEBUGCSS) {
-            $parsed_url = Helpers::explode_url($path);
-            print "<pre>[_image\n";
-            print_r($parsed_url);
-            print $this->_protocol . "\n" . $this->_base_path . "\n" . $path . "\n";
-            print "_image]</pre>";
-        }
-        return $path;
-    }
-
-    /**
-     * parse @import{} sections
-     *
-     * @param string $url the url of the imported CSS file
-     */
-    private function _parse_import($url)
-    {
-        $arr = preg_split("/[\s\n,]/", $url, -1, PREG_SPLIT_NO_EMPTY);
-        $url = array_shift($arr);
-        $accept = false;
-
-        if (count($arr) > 0) {
-            $acceptedmedia = self::$ACCEPTED_GENERIC_MEDIA_TYPES;
-            $acceptedmedia[] = $this->_dompdf->getOptions()->getDefaultMediaType();
-
-            // @import url media_type [media_type...]
-            foreach ($arr as $type) {
-                if (in_array(mb_strtolower(trim($type)), $acceptedmedia)) {
-                    $accept = true;
-                    break;
-                }
-            }
-
-        } else {
-            // unconditional import
-            $accept = true;
-        }
-
-        if ($accept) {
-            // Store our current base url properties in case the new url is elsewhere
-            $protocol = $this->_protocol;
-            $host = $this->_base_host;
-            $path = $this->_base_path;
-
-            // $url = str_replace(array('"',"url", "(", ")"), "", $url);
-            // If the protocol is php, assume that we will import using file://
-            // $url = Helpers::build_url($protocol === "php://" ? "file://" : $protocol, $host, $path, $url);
-            // Above does not work for subfolders and absolute urls.
-            // Todo: As above, do we need to replace php or file to an empty protocol for local files?
-
-            if (($url = $this->resolve_url($url)) !== "none") {
-                $this->load_css_file($url);
-            }
-
-            // Restore the current base url
-            $this->_protocol = $protocol;
-            $this->_base_host = $host;
-            $this->_base_path = $path;
-        }
-    }
-
-    /**
-     * parse @font-face{} sections
-     * http://www.w3.org/TR/css3-fonts/#the-font-face-rule
-     *
-     * @param string $str CSS @font-face rules
-     */
-    private function _parse_font_face($str)
-    {
-        $descriptors = $this->_parse_properties($str);
-
-        preg_match_all("/(url|local)\s*\(\s*[\"\']?([^\"\'\)]+)[\"\']?\s*\)\s*(format\s*\(\s*[\"\']?([^\"\'\)]+)[\"\']?\s*\))?/i", $descriptors->src, $src);
-
-        $valid_sources = [];
-        foreach ($src[0] as $i => $value) {
-            $source = [
-                "local" => strtolower($src[1][$i]) === "local",
-                "uri" => $src[2][$i],
-                "format" => strtolower($src[4][$i]),
-                "path" => Helpers::build_url($this->_protocol, $this->_base_host, $this->_base_path, $src[2][$i]),
-            ];
-
-            if (!$source["local"] && in_array($source["format"], ["", "truetype"]) && $source["path"] !== null) {
-                $valid_sources[] = $source;
-            }
-        }
-
-        // No valid sources
-        if (empty($valid_sources)) {
-            return;
-        }
-
-        $style = [
-            "family" => $descriptors->get_font_family_raw(),
-            "weight" => $descriptors->font_weight,
-            "style" => $descriptors->font_style,
-        ];
-
-        $this->getFontMetrics()->registerFont($style, $valid_sources[0]["path"], $this->_dompdf->getHttpContext());
-    }
-
-    /**
-     * parse regular CSS blocks
-     *
-     * _parse_properties() creates a new Style object based on the provided
-     * CSS rules.
-     *
-     * @param string $str CSS rules
-     * @return Style
-     */
-    private function _parse_properties($str)
-    {
-        $properties = preg_split("/;(?=(?:[^\(]*\([^\)]*\))*(?![^\)]*\)))/", $str);
-        $DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
-
-        if ($DEBUGCSS) {
-            print '[_parse_properties';
-        }
-
-        // Create the style
-        $style = new Style($this, Stylesheet::ORIG_AUTHOR);
-
-        foreach ($properties as $prop) {
-            // If the $prop contains an url, the regex may be wrong
-            // @todo: fix the regex so that it works every time
-            /*if (strpos($prop, "url(") === false) {
+		// Trim the trailing '/' from the query
+		if (mb_strlen($query) > 2) {
+			$query = rtrim($query, "/");
+		}
+
+		return ['query' => $query, 'pseudo_elements' => $pseudo_elements];
+	}
+
+	/**
+	 * https://github.com/tenderlove/nokogiri/blob/master/lib/nokogiri/css/xpath_visitor.rb
+	 *
+	 * @param string $expr
+	 * @param bool $last
+	 *
+	 * @return string
+	 */
+	protected function _selector_an_plus_b(string $expr, bool $last = false): string
+	{
+		$expr = preg_replace("/\s/", "", $expr);
+		if (!preg_match("/^(?P<a>-?[0-9]*)?n(?P<b>[-+]?[0-9]+)?$/", $expr, $matches)) {
+			return "false()";
+		}
+
+		$a = (isset($matches["a"]) && $matches["a"] !== "") ? ($matches["a"] !== "-" ? intval($matches["a"]) : -1) : 1;
+		$b = (isset($matches["b"]) && $matches["b"] !== "") ? intval($matches["b"]) : 0;
+
+		$position = $last ? "(last()-position()+1)" : "position()";
+
+		if ($b == 0) {
+			return "($position mod $a) = 0";
+		} else {
+			$compare = ($a < 0) ? "<=" : ">=";
+			$b2 = -$b;
+			if ($b2 >= 0) {
+				$b2 = "+$b2";
+			}
+			return "($position $compare $b) and ((($position $b2) mod " . abs($a) . ") = 0)";
+		}
+	}
+
+	/**
+	 * applies all current styles to a particular document tree
+	 *
+	 * apply_styles() applies all currently loaded styles to the provided
+	 * {@link FrameTree}.  Aside from parsing CSS, this is the main purpose
+	 * of this class.
+	 *
+	 * @param \Dompdf\Frame\FrameTree $tree
+	 */
+	function apply_styles(FrameTree $tree)
+	{
+		// Use XPath to select nodes.  This would be easier if we could attach
+		// Frame objects directly to DOMNodes using the setUserData() method, but
+		// we can't do that just yet.  Instead, we set a _node attribute_ in
+		// Frame->set_id() and use that as a handle on the Frame object via
+		// FrameTree::$_registry.
+
+		// We create a scratch array of styles indexed by frame id.  Once all
+		// styles have been assigned, we order the cached styles by specificity
+		// and create a final style object to assign to the frame.
+
+		// FIXME: this is not particularly robust...
+
+		$styles = [];
+		$xp = new DOMXPath($tree->get_dom());
+		$DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
+
+		// Add generated content
+		foreach ($this->_styles as $selector => $selector_styles) {
+			/** @var Style $style */
+			foreach ($selector_styles as $style) {
+				if (strpos($selector, ":before") === false && strpos($selector, ":after") === false) {
+					continue;
+				}
+
+				$query = $this->_css_selector_to_xpath($selector, true);
+
+				// Retrieve the nodes, limit to body for generated content
+				//TODO: If we use a context node can we remove the leading dot?
+				$nodes = @$xp->query('.' . $query["query"]);
+				if ($nodes === false) {
+					Helpers::record_warnings(E_USER_WARNING, "The CSS selector '$selector' is not valid", __FILE__, __LINE__);
+					continue;
+				}
+
+				/** @var \DOMElement $node */
+				foreach ($nodes as $node) {
+					// Only DOMElements get styles
+					if ($node->nodeType != XML_ELEMENT_NODE) {
+						continue;
+					}
+
+					foreach (array_keys($query["pseudo_elements"], true, true) as $pos) {
+						// Do not add a new pseudo element if another one already matched
+						if ($node->hasAttribute("dompdf_{$pos}_frame_id")) {
+							continue;
+						}
+
+						$content = $style->get_specified("content");
+
+						// Do not create non-displayed before/after pseudo elements
+						// https://www.w3.org/TR/CSS21/generate.html#content
+						// https://www.w3.org/TR/CSS21/generate.html#undisplayed-counters
+						if ($content === "normal" || $content === "none") {
+							continue;
+						}
+
+						if (($src = $this->resolve_url($content)) !== "none") {
+							$new_node = $node->ownerDocument->createElement("img_generated");
+							$new_node->setAttribute("src", $src);
+						} else {
+							$new_node = $node->ownerDocument->createElement("dompdf_generated");
+						}
+
+						$new_node->setAttribute($pos, $pos);
+						$new_frame_id = $tree->insert_node($node, $new_node, $pos);
+						$node->setAttribute("dompdf_{$pos}_frame_id", $new_frame_id);
+					}
+				}
+			}
+		}
+
+		// Apply all styles in stylesheet
+		foreach ($this->_styles as $selector => $selector_styles) {
+			/** @var Style $style */
+			foreach ($selector_styles as $style) {
+				$query = $this->_css_selector_to_xpath($selector);
+
+				// Retrieve the nodes
+				$nodes = @$xp->query($query["query"]);
+				if ($nodes === false) {
+					Helpers::record_warnings(E_USER_WARNING, "The CSS selector '$selector' is not valid", __FILE__, __LINE__);
+					continue;
+				}
+
+				$spec = $this->_specificity($selector, $style->get_origin());
+
+				foreach ($nodes as $node) {
+					// Retrieve the node id
+					// Only DOMElements get styles
+					if ($node->nodeType != XML_ELEMENT_NODE) {
+						continue;
+					}
+
+					$id = $node->getAttribute("frame_id");
+
+					// Assign the current style to the scratch array
+					$styles[$id][$spec][] = $style;
+				}
+			}
+		}
+
+		// Set the page width, height, and orientation based on the canvas paper size
+		$canvas = $this->_dompdf->getCanvas();
+		$paper_width = $canvas->get_width();
+		$paper_height = $canvas->get_height();
+		$paper_orientation = ($paper_width > $paper_height ? "landscape" : "portrait");
+
+		if ($this->_page_styles["base"] && is_array($this->_page_styles["base"]->size)) {
+			$paper_width = $this->_page_styles['base']->size[0];
+			$paper_height = $this->_page_styles['base']->size[1];
+			$paper_orientation = ($paper_width > $paper_height ? "landscape" : "portrait");
+		}
+
+		// Now create the styles and assign them to the appropriate frames. (We
+		// iterate over the tree using an implicit FrameTree iterator.)
+		$root_flg = false;
+		foreach ($tree as $frame) {
+			// Helpers::pre_r($frame->get_node()->nodeName . ":");
+			if (!$root_flg && $this->_page_styles["base"]) {
+				$style = $this->_page_styles["base"];
+			} else {
+				$style = $this->create_style();
+			}
+
+			// Find nearest DOMElement parent
+			$p = $frame;
+			while ($p = $p->get_parent()) {
+				if ($p->get_node()->nodeType === XML_ELEMENT_NODE) {
+					break;
+				}
+			}
+
+			// Styles can only be applied directly to DOMElements; anonymous
+			// frames inherit from their parent
+			if ($frame->get_node()->nodeType !== XML_ELEMENT_NODE) {
+				$style->inherit($p ? $p->get_style() : null);
+				$frame->set_style($style);
+				continue;
+			}
+
+			$id = $frame->get_id();
+
+			// Handle HTML 4.0 attributes
+			AttributeTranslator::translate_attributes($frame);
+			if (($str = $frame->get_node()->getAttribute(AttributeTranslator::$_style_attr)) !== "") {
+				$styles[$id][self::SPEC_NON_CSS][] = $this->_parse_properties($str);
+			}
+
+			// Locate any additional style attributes
+			if (($str = $frame->get_node()->getAttribute("style")) !== "") {
+				// Destroy CSS comments
+				$str = preg_replace("'/\*.*?\*/'si", "", $str);
+
+				$spec = $this->_specificity("!attr", self::ORIG_AUTHOR);
+				$styles[$id][$spec][] = $this->_parse_properties($str);
+			}
+
+			// Grab the applicable styles
+			if (isset($styles[$id])) {
+
+				/** @var array[][] $applied_styles */
+				$applied_styles = $styles[$id];
+
+				// Sort by specificity
+				ksort($applied_styles);
+
+				if ($DEBUGCSS) {
+					$debug_nodename = $frame->get_node()->nodeName;
+					print "<pre>\n$debug_nodename [\n";
+					foreach ($applied_styles as $spec => $arr) {
+						printf("  specificity 0x%08x\n", $spec);
+						/** @var Style $s */
+						foreach ($arr as $s) {
+							print "  [\n";
+							$s->debug_print();
+							print "  ]\n";
+						}
+					}
+				}
+
+				// Merge the new styles with the inherited styles
+				$acceptedmedia = self::$ACCEPTED_GENERIC_MEDIA_TYPES;
+				$acceptedmedia[] = $this->_dompdf->getOptions()->getDefaultMediaType();
+				foreach ($applied_styles as $arr) {
+					/** @var Style $s */
+					foreach ($arr as $s) {
+						$media_queries = $s->get_media_queries();
+						foreach ($media_queries as $media_query) {
+							list($media_query_feature, $media_query_value) = $media_query;
+							// if any of the Style's media queries fail then do not apply the style
+							//TODO: When the media query logic is fully developed we should not apply the Style when any of the media queries fail or are bad, per https://www.w3.org/TR/css3-mediaqueries/#error-handling
+							if (in_array($media_query_feature, self::$VALID_MEDIA_TYPES)) {
+								if ((strlen($media_query_feature) === 0 && !in_array($media_query, $acceptedmedia)) || (in_array($media_query, $acceptedmedia) && $media_query_value == "not")) {
+									continue (3);
+								}
+							} else {
+								switch ($media_query_feature) {
+									case "height":
+										if ($paper_height !== (float)$style->length_in_pt($media_query_value)) {
+											continue (3);
+										}
+										break;
+									case "min-height":
+										if ($paper_height < (float)$style->length_in_pt($media_query_value)) {
+											continue (3);
+										}
+										break;
+									case "max-height":
+										if ($paper_height > (float)$style->length_in_pt($media_query_value)) {
+											continue (3);
+										}
+										break;
+									case "width":
+										if ($paper_width !== (float)$style->length_in_pt($media_query_value)) {
+											continue (3);
+										}
+										break;
+									case "min-width":
+										//if (min($paper_width, $media_query_width) === $paper_width) {
+										if ($paper_width < (float)$style->length_in_pt($media_query_value)) {
+											continue (3);
+										}
+										break;
+									case "max-width":
+										//if (max($paper_width, $media_query_width) === $paper_width) {
+										if ($paper_width > (float)$style->length_in_pt($media_query_value)) {
+											continue (3);
+										}
+										break;
+									case "orientation":
+										if ($paper_orientation !== $media_query_value) {
+											continue (3);
+										}
+										break;
+									default:
+										Helpers::record_warnings(E_USER_WARNING, "Unknown media query: $media_query_feature", __FILE__, __LINE__);
+										break;
+								}
+							}
+						}
+
+						$style->merge($s);
+					}
+				}
+			}
+
+			// Handle inheritance
+			if ($p && $DEBUGCSS) {
+				print "  inherit [\n";
+				$p->get_style()->debug_print();
+				print "  ]\n";
+			}
+
+			$style->inherit($p ? $p->get_style() : null);
+
+			if ($DEBUGCSS) {
+				print "  DomElementStyle [\n";
+				$style->debug_print();
+				print "  ]\n";
+				print "]\n</pre>";
+			}
+
+			$style->clear_important();
+			$frame->set_style($style);
+
+			if (!$root_flg && $this->_page_styles["base"]) {
+				$root_flg = true;
+
+				// set the page width, height, and orientation based on the parsed page style
+				if ($style->size !== "auto") {
+					list($paper_width, $paper_height) = $style->size;
+				}
+				$paper_width = $paper_width - (float)$style->length_in_pt($style->margin_left) - (float)$style->length_in_pt($style->margin_right);
+				$paper_height = $paper_height - (float)$style->length_in_pt($style->margin_top) - (float)$style->length_in_pt($style->margin_bottom);
+				$paper_orientation = ($paper_width > $paper_height ? "landscape" : "portrait");
+			}
+		}
+
+		// We're done!  Clean out the registry of all styles since we
+		// won't be needing this later.
+		foreach (array_keys($this->_styles) as $key) {
+			$this->_styles[$key] = null;
+			unset($this->_styles[$key]);
+		}
+	}
+
+	/**
+	 * parse a CSS string using a regex parser
+	 * Called by {@link Stylesheet::parse_css()}
+	 *
+	 * @param string $str
+	 *
+	 * @throws Exception
+	 */
+	private function _parse_css($str)
+	{
+		$str = trim($str);
+
+		// Destroy comments and remove HTML comments
+		$css = preg_replace([
+			"'/\*.*?\*/'si",
+			"/^<!--/",
+			"/-->$/"
+		], "", $str);
+
+		// FIXME: handle '{' within strings, e.g. [attr="string {}"]
+
+		// Something more legible:
+		$re =
+			"/\s*                                   # Skip leading whitespace                             \n" .
+			"( @([^\s{]+)\s*([^{;]*) (?:;|({)) )?   # Match @rules followed by ';' or '{'                 \n" .
+			"(?(1)                                  # Only parse sub-sections if we're in an @rule...     \n" .
+			"  (?(4)                                # ...and if there was a leading '{'                   \n" .
+			"    \s*( (?:(?>[^{}]+) ({)?            # Parse rulesets and individual @page rules           \n" .
+			"            (?(6) (?>[^}]*) }) \s*)+?                                                        \n" .
+			"       )                                                                                     \n" .
+			"   })                                  # Balancing '}'                                       \n" .
+			"|                                      # Branch to match regular rules (not preceded by '@') \n" .
+			"([^{]*{[^}]*}))                        # Parse normal rulesets                               \n" .
+			"/xs";
+
+		if (preg_match_all($re, $css, $matches, PREG_SET_ORDER) === false) {
+			// An error occurred
+			throw new Exception("Error parsing css file: preg_match_all() failed.");
+		}
+
+		// After matching, the array indices are set as follows:
+		//
+		// [0] => complete text of match
+		// [1] => contains '@import ...;' or '@media {' if applicable
+		// [2] => text following @ for cases where [1] is set
+		// [3] => media types or full text following '@import ...;'
+		// [4] => '{', if present
+		// [5] => rulesets within media rules
+		// [6] => '{', within media rules
+		// [7] => individual rules, outside of media rules
+		//
+
+		$media_query_regex = "/(?:((only|not)?\s*(" . implode("|", self::$VALID_MEDIA_TYPES) . "))|(\s*\(\s*((?:(min|max)-)?([\w\-]+))\s*(?:\:\s*(.*?)\s*)?\)))/isx";
+
+		//Helpers::pre_r($matches);
+		foreach ($matches as $match) {
+			$match[2] = trim($match[2]);
+
+			if ($match[2] !== "") {
+				// Handle @rules
+				switch ($match[2]) {
+
+					case "import":
+						$this->_parse_import($match[3]);
+						break;
+
+					case "media":
+						$acceptedmedia = self::$ACCEPTED_GENERIC_MEDIA_TYPES;
+						$acceptedmedia[] = $this->_dompdf->getOptions()->getDefaultMediaType();
+
+						$media_queries = preg_split("/\s*,\s*/", mb_strtolower(trim($match[3])));
+						foreach ($media_queries as $media_query) {
+							if (in_array($media_query, $acceptedmedia)) {
+								//if we have a media type match go ahead and parse the stylesheet
+								$this->_parse_sections($match[5]);
+								break;
+							} elseif (!in_array($media_query, self::$VALID_MEDIA_TYPES)) {
+								// otherwise conditionally parse the stylesheet assuming there are parseable media queries
+								if (preg_match_all($media_query_regex, $media_query, $media_query_matches, PREG_SET_ORDER) !== false) {
+									$mq = [];
+									foreach ($media_query_matches as $media_query_match) {
+										if (empty($media_query_match[1]) === false) {
+											$media_query_feature = strtolower($media_query_match[3]);
+											$media_query_value = strtolower($media_query_match[2]);
+											$mq[] = [$media_query_feature, $media_query_value];
+										} elseif (empty($media_query_match[4]) === false) {
+											$media_query_feature = strtolower($media_query_match[5]);
+											$media_query_value = (array_key_exists(8, $media_query_match) ? strtolower($media_query_match[8]) : null);
+											$mq[] = [$media_query_feature, $media_query_value];
+										}
+									}
+									$this->_parse_sections($match[5], $mq);
+									break;
+								}
+							}
+						}
+						break;
+
+					case "page":
+						//This handles @page to be applied to page oriented media
+						//Note: This has a reduced syntax:
+						//@page { margin:1cm; color:blue; }
+						//Not a sequence of styles like a full.css, but only the properties
+						//of a single style, which is applied to the very first "root" frame before
+						//processing other styles of the frame.
+						//Working properties:
+						// margin (for margin around edge of paper)
+						// font-family (default font of pages)
+						// color (default text color of pages)
+						//Non working properties:
+						// border
+						// padding
+						// background-color
+						//Todo:Reason is unknown
+						//Other properties (like further font or border attributes) not tested.
+						//If a border or background color around each paper sheet is desired,
+						//assign it to the <body> tag, possibly only for the css of the correct media type.
+
+						// If the page has a name, skip the style.
+						$page_selector = trim($match[3]);
+
+						$key = null;
+						switch ($page_selector) {
+							case "":
+								$key = "base";
+								break;
+
+							case ":left":
+							case ":right":
+							case ":odd":
+							case ":even":
+							/** @noinspection PhpMissingBreakStatementInspection */
+							case ":first":
+								$key = $page_selector;
+								break;
+
+							default:
+								break 2;
+						}
+
+						// Store the style for later...
+						if (empty($this->_page_styles[$key])) {
+							$this->_page_styles[$key] = $this->_parse_properties($match[5]);
+						} else {
+							$this->_page_styles[$key]->merge($this->_parse_properties($match[5]));
+						}
+						break;
+
+					case "font-face":
+						$this->_parse_font_face($match[5]);
+						break;
+
+					default:
+						// ignore everything else
+						break;
+				}
+
+				continue;
+			}
+
+			if ($match[7] !== "") {
+				$this->_parse_sections($match[7]);
+			}
+		}
+	}
+
+	/**
+	 * Resolve the given `url()` declaration to an absolute URL.
+	 *
+	 * @param string|null $val The declaration to resolve in the context of the stylesheet.
+	 * @return string The resolved URL, or `none`, if the value is `none`,
+	 *         invalid, or points to a non-existent local file.
+	 */
+	public function resolve_url($val): string
+	{
+		$DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
+		$parsed_url = "none";
+
+		if (empty($val) || $val === "none") {
+			$path = "none";
+		} elseif (mb_strpos($val, "url") === false) {
+			$path = "none"; //Don't resolve no image -> otherwise would prefix path and no longer recognize as none
+		} else {
+			$val = preg_replace("/url\(\s*['\"]?([^'\")]+)['\"]?\s*\)/", "\\1", trim($val));
+
+			// Resolve the url now in the context of the current stylesheet
+			$path = Helpers::build_url($this->_protocol,
+				$this->_base_host,
+				$this->_base_path,
+				$val);
+			if ($path === null) {
+				$path = "none";
+			}
+		}
+		if ($DEBUGCSS) {
+			$parsed_url = Helpers::explode_url($path);
+			print "<pre>[_image\n";
+			print_r($parsed_url);
+			print $this->_protocol . "\n" . $this->_base_path . "\n" . $path . "\n";
+			print "_image]</pre>";
+		}
+		return $path;
+	}
+
+	/**
+	 * parse @import{} sections
+	 *
+	 * @param string $url the url of the imported CSS file
+	 */
+	private function _parse_import($url)
+	{
+		$arr = preg_split("/[\s\n,]/", $url, -1, PREG_SPLIT_NO_EMPTY);
+		$url = array_shift($arr);
+		$accept = false;
+
+		if (count($arr) > 0) {
+			$acceptedmedia = self::$ACCEPTED_GENERIC_MEDIA_TYPES;
+			$acceptedmedia[] = $this->_dompdf->getOptions()->getDefaultMediaType();
+
+			// @import url media_type [media_type...]
+			foreach ($arr as $type) {
+				if (in_array(mb_strtolower(trim($type)), $acceptedmedia)) {
+					$accept = true;
+					break;
+				}
+			}
+
+		} else {
+			// unconditional import
+			$accept = true;
+		}
+
+		if ($accept) {
+			// Store our current base url properties in case the new url is elsewhere
+			$protocol = $this->_protocol;
+			$host = $this->_base_host;
+			$path = $this->_base_path;
+
+			// $url = str_replace(array('"',"url", "(", ")"), "", $url);
+			// If the protocol is php, assume that we will import using file://
+			// $url = Helpers::build_url($protocol === "php://" ? "file://" : $protocol, $host, $path, $url);
+			// Above does not work for subfolders and absolute urls.
+			// Todo: As above, do we need to replace php or file to an empty protocol for local files?
+
+			if (($url = $this->resolve_url($url)) !== "none") {
+				$this->load_css_file($url);
+			}
+
+			// Restore the current base url
+			$this->_protocol = $protocol;
+			$this->_base_host = $host;
+			$this->_base_path = $path;
+		}
+	}
+
+	/**
+	 * parse @font-face{} sections
+	 * http://www.w3.org/TR/css3-fonts/#the-font-face-rule
+	 *
+	 * @param string $str CSS @font-face rules
+	 */
+	private function _parse_font_face($str)
+	{
+		$descriptors = $this->_parse_properties($str);
+
+		preg_match_all("/(url|local)\s*\(\s*[\"\']?([^\"\'\)]+)[\"\']?\s*\)\s*(format\s*\(\s*[\"\']?([^\"\'\)]+)[\"\']?\s*\))?/i", $descriptors->src, $src);
+
+		$valid_sources = [];
+		foreach ($src[0] as $i => $value) {
+			$source = [
+				"local" => strtolower($src[1][$i]) === "local",
+				"uri" => $src[2][$i],
+				"format" => strtolower($src[4][$i]),
+				"path" => Helpers::build_url($this->_protocol, $this->_base_host, $this->_base_path, $src[2][$i]),
+			];
+
+			if (!$source["local"] && in_array($source["format"], ["", "truetype"]) && $source["path"] !== null) {
+				$valid_sources[] = $source;
+			}
+		}
+
+		// No valid sources
+		if (empty($valid_sources)) {
+			return;
+		}
+
+		$style = [
+			"family" => $descriptors->get_font_family_raw(),
+			"weight" => $descriptors->font_weight,
+			"style" => $descriptors->font_style,
+		];
+
+		$this->getFontMetrics()->registerFont($style, $valid_sources[0]["path"], $this->_dompdf->getHttpContext());
+	}
+
+	/**
+	 * parse regular CSS blocks
+	 *
+	 * _parse_properties() creates a new Style object based on the provided
+	 * CSS rules.
+	 *
+	 * @param string $str CSS rules
+	 * @return Style
+	 */
+	private function _parse_properties($str)
+	{
+		$properties = preg_split("/;(?=(?:[^\(]*\([^\)]*\))*(?![^\)]*\)))/", $str);
+		$DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
+
+		if ($DEBUGCSS) {
+			print '[_parse_properties';
+		}
+
+		// Create the style
+		$style = new Style($this, Stylesheet::ORIG_AUTHOR);
+
+		foreach ($properties as $prop) {
+			// If the $prop contains an url, the regex may be wrong
+			// @todo: fix the regex so that it works every time
+			/*if (strpos($prop, "url(") === false) {
               if (preg_match("/([a-z-]+)\s*:\s*[^:]+$/i", $prop, $m))
                 $prop = $m[0];
             }*/
 
-            //A css property can have " ! important" appended (whitespace optional)
-            //strip this off to decode core of the property correctly.
+			//A css property can have " ! important" appended (whitespace optional)
+			//strip this off to decode core of the property correctly.
 
-            /* Instead of short code, prefer the typical case with fast code
+			/* Instead of short code, prefer the typical case with fast code
           $important = preg_match("/(.*?)!\s*important/",$prop,$match);
             if ( $important ) {
               $prop = $match[1];
             }
             $prop = trim($prop);
             */
-            if ($DEBUGCSS) print '(';
-
-            $important = false;
-            $prop = trim($prop);
-
-            if (substr($prop, -9) === 'important') {
-                $prop_tmp = rtrim(substr($prop, 0, -9));
-
-                if (substr($prop_tmp, -1) === '!') {
-                    $prop = rtrim(substr($prop_tmp, 0, -1));
-                    $important = true;
-                }
-            }
-
-            if ($prop === "") {
-                if ($DEBUGCSS) print 'empty)';
-                continue;
-            }
-
-            $i = mb_strpos($prop, ":");
-            if ($i === false) {
-                if ($DEBUGCSS) print 'novalue' . $prop . ')';
-                continue;
-            }
-
-            $prop_name = rtrim(mb_strtolower(mb_substr($prop, 0, $i)));
-            $value = ltrim(mb_substr($prop, $i + 1));
-
-            if ($DEBUGCSS) print $prop_name . ':=' . $value . ($important ? '!IMPORTANT' : '') . ')';
-
-            $style->set_prop($prop_name, $value, $important, false);
-        }
-        if ($DEBUGCSS) print '_parse_properties]';
-
-        return $style;
-    }
-
-    /**
-     * parse selector + rulesets
-     *
-     * @param string $str CSS selectors and rulesets
-     * @param array $media_queries
-     */
-    private function _parse_sections($str, $media_queries = [])
-    {
-        // Pre-process selectors: collapse all whitespace and strip whitespace
-        // around '>', '.', ':', '+', '~', '#'
-        $patterns = ["/\s+/", "/\s+([>.:+~#])\s+/"];
-        $replacements = [" ", "\\1"];
-        $DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
-
-        $sections = explode("}", $str);
-        if ($DEBUGCSS) print '[_parse_sections';
-        foreach ($sections as $sect) {
-            $i = mb_strpos($sect, "{");
-            if ($i === false) { continue; }
-
-            if ($DEBUGCSS) print '[section';
-
-            $selector_str = preg_replace($patterns, $replacements, mb_substr($sect, 0, $i));
-            $selectors = preg_split("/,(?![^\(]*\))/", $selector_str, 0, PREG_SPLIT_NO_EMPTY);
-            $style = $this->_parse_properties(trim(mb_substr($sect, $i + 1)));
-
-            // Assign it to the selected elements
-            foreach ($selectors as $selector) {
-                $selector = trim($selector);
-
-                if ($selector == "") {
-                    if ($DEBUGCSS) print '#empty#';
-                    continue;
-                }
-                if ($DEBUGCSS) print '#' . $selector . '#';
-                //if ($DEBUGCSS) { if (strpos($selector,'p') !== false) print '!!!p!!!#'; }
-
-                //FIXME: tag the selector with a hash of the media query to separate it from non-conditional styles (?), xpath comments are probably not what we want to do here
-                if (count($media_queries) > 0) {
-                    $style->set_media_queries($media_queries);
-                }
-                $this->add_style($selector, $style);
-            }
-
-            if ($DEBUGCSS) {
-                print 'section]';
-            }
-        }
-
-        if ($DEBUGCSS) {
-            print "_parse_sections]\n";
-        }
-    }
-
-    /**
-     * @return string
-     */
-    public function getDefaultStylesheet()
-    {
-        $options = $this->_dompdf->getOptions();
-        $rootDir = realpath($options->getRootDir());
-        return Helpers::build_url("file://", "", $rootDir, $rootDir . self::DEFAULT_STYLESHEET);
-    }
-
-    /**
-     * @param FontMetrics $fontMetrics
-     * @return $this
-     */
-    public function setFontMetrics(FontMetrics $fontMetrics)
-    {
-        $this->fontMetrics = $fontMetrics;
-        return $this;
-    }
-
-    /**
-     * @return FontMetrics
-     */
-    public function getFontMetrics()
-    {
-        return $this->fontMetrics;
-    }
-
-    /**
-     * dumps the entire stylesheet as a string
-     *
-     * Generates a string of each selector and associated style in the
-     * Stylesheet.  Useful for debugging.
-     *
-     * @return string
-     */
-    function __toString()
-    {
-        $str = "";
-        foreach ($this->_styles as $selector => $selector_styles) {
-            /** @var Style $style */
-            foreach ($selector_styles as $style) {
-                $str .= "$selector => " . $style->__toString() . "\n";
-            }
-        }
-
-        return $str;
-    }
+			if ($DEBUGCSS) print '(';
+
+			$important = false;
+			$prop = trim($prop);
+
+			if (substr($prop, -9) === 'important') {
+				$prop_tmp = rtrim(substr($prop, 0, -9));
+
+				if (substr($prop_tmp, -1) === '!') {
+					$prop = rtrim(substr($prop_tmp, 0, -1));
+					$important = true;
+				}
+			}
+
+			if ($prop === "") {
+				if ($DEBUGCSS) print 'empty)';
+				continue;
+			}
+
+			$i = mb_strpos($prop, ":");
+			if ($i === false) {
+				if ($DEBUGCSS) print 'novalue' . $prop . ')';
+				continue;
+			}
+
+			$prop_name = rtrim(mb_strtolower(mb_substr($prop, 0, $i)));
+			$value = ltrim(mb_substr($prop, $i + 1));
+
+			if ($DEBUGCSS) print $prop_name . ':=' . $value . ($important ? '!IMPORTANT' : '') . ')';
+
+			$style->set_prop($prop_name, $value, $important, false);
+		}
+		if ($DEBUGCSS) print '_parse_properties]';
+
+		return $style;
+	}
+
+	/**
+	 * parse selector + rulesets
+	 *
+	 * @param string $str CSS selectors and rulesets
+	 * @param array $media_queries
+	 */
+	private function _parse_sections($str, $media_queries = [])
+	{
+		// Pre-process selectors: collapse all whitespace and strip whitespace
+		// around '>', '.', ':', '+', '~', '#'
+		$patterns = ["/\s+/", "/\s+([>.:+~#])\s+/"];
+		$replacements = [" ", "\\1"];
+		$DEBUGCSS = $this->_dompdf->getOptions()->getDebugCss();
+
+		$sections = explode("}", $str);
+		if ($DEBUGCSS) print '[_parse_sections';
+		foreach ($sections as $sect) {
+			$i = mb_strpos($sect, "{");
+			if ($i === false) { continue; }
+
+			if ($DEBUGCSS) print '[section';
+
+			$selector_str = preg_replace($patterns, $replacements, mb_substr($sect, 0, $i));
+			$selectors = preg_split("/,(?![^\(]*\))/", $selector_str, 0, PREG_SPLIT_NO_EMPTY);
+			$style = $this->_parse_properties(trim(mb_substr($sect, $i + 1)));
+
+			// Assign it to the selected elements
+			foreach ($selectors as $selector) {
+				$selector = trim($selector);
+
+				if ($selector == "") {
+					if ($DEBUGCSS) print '#empty#';
+					continue;
+				}
+				if ($DEBUGCSS) print '#' . $selector . '#';
+				//if ($DEBUGCSS) { if (strpos($selector,'p') !== false) print '!!!p!!!#'; }
+
+				//FIXME: tag the selector with a hash of the media query to separate it from non-conditional styles (?), xpath comments are probably not what we want to do here
+				if (count($media_queries) > 0) {
+					$style->set_media_queries($media_queries);
+				}
+				$this->add_style($selector, $style);
+			}
+
+			if ($DEBUGCSS) {
+				print 'section]';
+			}
+		}
+
+		if ($DEBUGCSS) {
+			print "_parse_sections]\n";
+		}
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getDefaultStylesheet()
+	{
+		$options = $this->_dompdf->getOptions();
+		$rootDir = realpath($options->getRootDir());
+		return Helpers::build_url("file://", "", $rootDir, $rootDir . self::DEFAULT_STYLESHEET);
+	}
+
+	/**
+	 * @param FontMetrics $fontMetrics
+	 * @return $this
+	 */
+	public function setFontMetrics(FontMetrics $fontMetrics)
+	{
+		$this->fontMetrics = $fontMetrics;
+		return $this;
+	}
+
+	/**
+	 * @return FontMetrics
+	 */
+	public function getFontMetrics()
+	{
+		return $this->fontMetrics;
+	}
+
+	/**
+	 * dumps the entire stylesheet as a string
+	 *
+	 * Generates a string of each selector and associated style in the
+	 * Stylesheet.  Useful for debugging.
+	 *
+	 * @return string
+	 */
+	function __toString()
+	{
+		$str = "";
+		foreach ($this->_styles as $selector => $selector_styles) {
+			/** @var Style $style */
+			foreach ($selector_styles as $style) {
+				$str .= "$selector => " . $style->__toString() . "\n";
+			}
+		}
+
+		return $str;
+	}
 }

vendor/dompdf/dompdf/src/Image/Cache.php

Indentation +224 added lines, -224 removed lines

@@ -18,237 +18,237 @@
  */
 class Cache
 {
-    /**
-     * Array of downloaded images.  Cached so that identical images are
-     * not needlessly downloaded.
-     *
-     * @var array
-     */
-    protected static $_cache = [];
-
-    /**
-     * @var array
-     */
-    protected static $tempImages = [];
-
-    /**
-     * The url to the "broken image" used when images can't be loaded
-     *
-     * @var string
-     */
-    public static $broken_image = "data:image/svg+xml;charset=utf8,%3C?xml version='1.0'?%3E%3Csvg width='64' height='64' xmlns='http://www.w3.org/2000/svg'%3E%3Cg%3E%3Crect stroke='%23666666' id='svg_1' height='60.499994' width='60.166667' y='1.666669' x='1.999998' stroke-width='1.5' fill='none'/%3E%3Cline stroke-linecap='null' stroke-linejoin='null' id='svg_3' y2='59.333253' x2='59.749916' y1='4.333415' x1='4.250079' stroke-width='1.5' stroke='%23999999' fill='none'/%3E%3Cline stroke-linecap='null' stroke-linejoin='null' id='svg_4' y2='59.999665' x2='4.062838' y1='3.750342' x1='60.062164' stroke-width='1.5' stroke='%23999999' fill='none'/%3E%3C/g%3E%3C/svg%3E";
-
-    public static $error_message = "Image not found or type unknown";
+	/**
+	 * Array of downloaded images.  Cached so that identical images are
+	 * not needlessly downloaded.
+	 *
+	 * @var array
+	 */
+	protected static $_cache = [];
+
+	/**
+	 * @var array
+	 */
+	protected static $tempImages = [];
+
+	/**
+	 * The url to the "broken image" used when images can't be loaded
+	 *
+	 * @var string
+	 */
+	public static $broken_image = "data:image/svg+xml;charset=utf8,%3C?xml version='1.0'?%3E%3Csvg width='64' height='64' xmlns='http://www.w3.org/2000/svg'%3E%3Cg%3E%3Crect stroke='%23666666' id='svg_1' height='60.499994' width='60.166667' y='1.666669' x='1.999998' stroke-width='1.5' fill='none'/%3E%3Cline stroke-linecap='null' stroke-linejoin='null' id='svg_3' y2='59.333253' x2='59.749916' y1='4.333415' x1='4.250079' stroke-width='1.5' stroke='%23999999' fill='none'/%3E%3Cline stroke-linecap='null' stroke-linejoin='null' id='svg_4' y2='59.999665' x2='4.062838' y1='3.750342' x1='60.062164' stroke-width='1.5' stroke='%23999999' fill='none'/%3E%3C/g%3E%3C/svg%3E";
+
+	public static $error_message = "Image not found or type unknown";
     
-    /**
-     * Resolve and fetch an image for use.
-     *
-     * @param string $url       The url of the image
-     * @param string $protocol  Default protocol if none specified in $url
-     * @param string $host      Default host if none specified in $url
-     * @param string $base_path Default path if none specified in $url
-     * @param Options $options  An instance of Dompdf\Options
-     *
-     * @return array            An array with three elements: The local path to the image, the image
-     *                          extension, and an error message if the image could not be cached
-     */
-    static function resolve_url($url, $protocol, $host, $base_path, Options $options)
-    {
-        $tempfile = null;
-        $resolved_url = null;
-        $type = null;
-        $message = null;
+	/**
+	 * Resolve and fetch an image for use.
+	 *
+	 * @param string $url       The url of the image
+	 * @param string $protocol  Default protocol if none specified in $url
+	 * @param string $host      Default host if none specified in $url
+	 * @param string $base_path Default path if none specified in $url
+	 * @param Options $options  An instance of Dompdf\Options
+	 *
+	 * @return array            An array with three elements: The local path to the image, the image
+	 *                          extension, and an error message if the image could not be cached
+	 */
+	static function resolve_url($url, $protocol, $host, $base_path, Options $options)
+	{
+		$tempfile = null;
+		$resolved_url = null;
+		$type = null;
+		$message = null;
         
-        try {
-            $full_url = Helpers::build_url($protocol, $host, $base_path, $url);
+		try {
+			$full_url = Helpers::build_url($protocol, $host, $base_path, $url);
 
-            if ($full_url === null) {
-                throw new ImageException("Unable to parse image URL $url.", E_WARNING);
-            }
+			if ($full_url === null) {
+				throw new ImageException("Unable to parse image URL $url.", E_WARNING);
+			}
 
-            $parsed_url = Helpers::explode_url($full_url);
-            $protocol = strtolower($parsed_url["protocol"]);
-            $is_data_uri = strpos($protocol, "data:") === 0;
+			$parsed_url = Helpers::explode_url($full_url);
+			$protocol = strtolower($parsed_url["protocol"]);
+			$is_data_uri = strpos($protocol, "data:") === 0;
             
-            if (!$is_data_uri) {
-                $allowed_protocols = $options->getAllowedProtocols();
-                if (!array_key_exists($protocol, $allowed_protocols)) {
-                    throw new ImageException("Permission denied on $url. The communication protocol is not supported.", E_WARNING);
-                }
-                foreach ($allowed_protocols[$protocol]["rules"] as $rule) {
-                    [$result, $message] = $rule($full_url);
-                    if (!$result) {
-                        throw new ImageException("Error loading $url: $message", E_WARNING);
-                    }
-                }
-            }
-
-            if ($protocol === "file://") {
-                $resolved_url = $full_url;
-            } elseif (isset(self::$_cache[$full_url])) {
-                $resolved_url = self::$_cache[$full_url];
-            } else {
-                $tmp_dir = $options->getTempDir();
-                if (($resolved_url = @tempnam($tmp_dir, "ca_dompdf_img_")) === false) {
-                    throw new ImageException("Unable to create temporary image in " . $tmp_dir, E_WARNING);
-                }
-                $tempfile = $resolved_url;
-
-                $image = null;
-                if ($is_data_uri) {
-                    if (($parsed_data_uri = Helpers::parse_data_uri($url)) !== false) {
-                        $image = $parsed_data_uri["data"];
-                    }
-                } else {
-                    list($image, $http_response_header) = Helpers::getFileContent($full_url, $options->getHttpContext());
-                }
-
-                // Image not found or invalid
-                if ($image === null) {
-                    $msg = ($is_data_uri ? "Data-URI could not be parsed" : "Image not found");
-                    throw new ImageException($msg, E_WARNING);
-                }
-
-                if (@file_put_contents($resolved_url, $image) === false) {
-                    throw new ImageException("Unable to create temporary image in " . $tmp_dir, E_WARNING);
-                }
-
-                self::$_cache[$full_url] = $resolved_url;
-            }
-
-            // Check if the local file is readable
-            if (!is_readable($resolved_url) || !filesize($resolved_url)) {
-                throw new ImageException("Image not readable or empty", E_WARNING);
-            }
-
-            list($width, $height, $type) = Helpers::dompdf_getimagesize($resolved_url, $options->getHttpContext());
-
-            if (($width && $height && in_array($type, ["gif", "png", "jpeg", "bmp", "svg","webp"], true)) === false) {
-                throw new ImageException("Image type unknown", E_WARNING);
-            }
-
-            if ($type === "svg") {
-                $parser = xml_parser_create("utf-8");
-                xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, false);
-                xml_set_element_handler(
-                    $parser,
-                    function ($parser, $name, $attributes) use ($options, $parsed_url, $full_url) {
-                        if ($name === "image") {
-                            $attributes = array_change_key_case($attributes, CASE_LOWER);
-                            $url = $attributes["xlink:href"] ?? $attributes["href"];
-                            if (!empty($url)) {
-                                $inner_full_url = Helpers::build_url($parsed_url["protocol"], $parsed_url["host"], $parsed_url["path"], $url);
-                                if ($inner_full_url === $full_url) {
-                                    throw new ImageException("SVG self-reference is not allowed", E_WARNING);
-                                }
-                                [$resolved_url, $type, $message] = self::resolve_url($url, $parsed_url["protocol"], $parsed_url["host"], $parsed_url["path"], $options);
-                                if (!empty($message)) {
-                                    throw new ImageException("This SVG document references a restricted resource. $message", E_WARNING);
-                                }
-                            }
-                        }
-                    },
-                    false
-                );
+			if (!$is_data_uri) {
+				$allowed_protocols = $options->getAllowedProtocols();
+				if (!array_key_exists($protocol, $allowed_protocols)) {
+					throw new ImageException("Permission denied on $url. The communication protocol is not supported.", E_WARNING);
+				}
+				foreach ($allowed_protocols[$protocol]["rules"] as $rule) {
+					[$result, $message] = $rule($full_url);
+					if (!$result) {
+						throw new ImageException("Error loading $url: $message", E_WARNING);
+					}
+				}
+			}
+
+			if ($protocol === "file://") {
+				$resolved_url = $full_url;
+			} elseif (isset(self::$_cache[$full_url])) {
+				$resolved_url = self::$_cache[$full_url];
+			} else {
+				$tmp_dir = $options->getTempDir();
+				if (($resolved_url = @tempnam($tmp_dir, "ca_dompdf_img_")) === false) {
+					throw new ImageException("Unable to create temporary image in " . $tmp_dir, E_WARNING);
+				}
+				$tempfile = $resolved_url;
+
+				$image = null;
+				if ($is_data_uri) {
+					if (($parsed_data_uri = Helpers::parse_data_uri($url)) !== false) {
+						$image = $parsed_data_uri["data"];
+					}
+				} else {
+					list($image, $http_response_header) = Helpers::getFileContent($full_url, $options->getHttpContext());
+				}
+
+				// Image not found or invalid
+				if ($image === null) {
+					$msg = ($is_data_uri ? "Data-URI could not be parsed" : "Image not found");
+					throw new ImageException($msg, E_WARNING);
+				}
+
+				if (@file_put_contents($resolved_url, $image) === false) {
+					throw new ImageException("Unable to create temporary image in " . $tmp_dir, E_WARNING);
+				}
+
+				self::$_cache[$full_url] = $resolved_url;
+			}
+
+			// Check if the local file is readable
+			if (!is_readable($resolved_url) || !filesize($resolved_url)) {
+				throw new ImageException("Image not readable or empty", E_WARNING);
+			}
+
+			list($width, $height, $type) = Helpers::dompdf_getimagesize($resolved_url, $options->getHttpContext());
+
+			if (($width && $height && in_array($type, ["gif", "png", "jpeg", "bmp", "svg","webp"], true)) === false) {
+				throw new ImageException("Image type unknown", E_WARNING);
+			}
+
+			if ($type === "svg") {
+				$parser = xml_parser_create("utf-8");
+				xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, false);
+				xml_set_element_handler(
+					$parser,
+					function ($parser, $name, $attributes) use ($options, $parsed_url, $full_url) {
+						if ($name === "image") {
+							$attributes = array_change_key_case($attributes, CASE_LOWER);
+							$url = $attributes["xlink:href"] ?? $attributes["href"];
+							if (!empty($url)) {
+								$inner_full_url = Helpers::build_url($parsed_url["protocol"], $parsed_url["host"], $parsed_url["path"], $url);
+								if ($inner_full_url === $full_url) {
+									throw new ImageException("SVG self-reference is not allowed", E_WARNING);
+								}
+								[$resolved_url, $type, $message] = self::resolve_url($url, $parsed_url["protocol"], $parsed_url["host"], $parsed_url["path"], $options);
+								if (!empty($message)) {
+									throw new ImageException("This SVG document references a restricted resource. $message", E_WARNING);
+								}
+							}
+						}
+					},
+					false
+				);
         
-                if (($fp = fopen($resolved_url, "r")) !== false) {
-                    while ($line = fread($fp, 8192)) {
-                        xml_parse($parser, $line, false);
-                    }
-                    fclose($fp);
-                }
-                xml_parser_free($parser);
-            }
-        } catch (ImageException $e) {
-            if ($tempfile) {
-                unlink($tempfile);
-            }
-            $resolved_url = self::$broken_image;
-            list($width, $height, $type) = Helpers::dompdf_getimagesize($resolved_url, $options->getHttpContext());
-            $message = self::$error_message;
-            Helpers::record_warnings($e->getCode(), $e->getMessage() . " \n $url", $e->getFile(), $e->getLine());
-            self::$_cache[$full_url] = $resolved_url;
-        }
-
-        return [$resolved_url, $type, $message];
-    }
-
-    /**
-     * Register a temp file for the given original image file.
-     *
-     * @param string $filePath The path of the original image.
-     * @param string $tempPath The path of the temp file to register.
-     * @param string $key      An optional key to register the temp file at.
-     */
-    static function addTempImage(string $filePath, string $tempPath, string $key = "default"): void
-    {
-        if (!isset(self::$tempImages[$filePath])) {
-            self::$tempImages[$filePath] = [];
-        }
-
-        self::$tempImages[$filePath][$key] = $tempPath;
-    }
-
-    /**
-     * Get the path of a temp file registered for the given original image file.
-     *
-     * @param string $filePath The path of the original image.
-     * @param string $key      The key the temp file is registered at.
-     */
-    static function getTempImage(string $filePath, string $key = "default"): ?string
-    {
-        return self::$tempImages[$filePath][$key] ?? null;
-    }
-
-    /**
-     * Unlink all cached images (i.e. temporary images either downloaded
-     * or converted) except for the bundled "broken image"
-     */
-    static function clear(bool $debugPng = false)
-    {
-        foreach (self::$_cache as $file) {
-            if ($file === self::$broken_image) {
-                continue;
-            }
-            if ($debugPng) {
-                print "[clear unlink $file]";
-            }
-            if (file_exists($file)) {
-                unlink($file);
-            }
-        }
-
-        foreach (self::$tempImages as $versions) {
-            foreach ($versions as $file) {
-                if ($file === self::$broken_image) {
-                    continue;
-                }
-                if ($debugPng) {
-                    print "[unlink temp image $file]";
-                }
-                if (file_exists($file)) {
-                    unlink($file);
-                }
-            }
-        }
-
-        self::$_cache = [];
-        self::$tempImages = [];
-    }
-
-    static function detect_type($file, $context = null)
-    {
-        list(, , $type) = Helpers::dompdf_getimagesize($file, $context);
-
-        return $type;
-    }
-
-    static function is_broken($url)
-    {
-        return $url === self::$broken_image;
-    }
+				if (($fp = fopen($resolved_url, "r")) !== false) {
+					while ($line = fread($fp, 8192)) {
+						xml_parse($parser, $line, false);
+					}
+					fclose($fp);
+				}
+				xml_parser_free($parser);
+			}
+		} catch (ImageException $e) {
+			if ($tempfile) {
+				unlink($tempfile);
+			}
+			$resolved_url = self::$broken_image;
+			list($width, $height, $type) = Helpers::dompdf_getimagesize($resolved_url, $options->getHttpContext());
+			$message = self::$error_message;
+			Helpers::record_warnings($e->getCode(), $e->getMessage() . " \n $url", $e->getFile(), $e->getLine());
+			self::$_cache[$full_url] = $resolved_url;
+		}
+
+		return [$resolved_url, $type, $message];
+	}
+
+	/**
+	 * Register a temp file for the given original image file.
+	 *
+	 * @param string $filePath The path of the original image.
+	 * @param string $tempPath The path of the temp file to register.
+	 * @param string $key      An optional key to register the temp file at.
+	 */
+	static function addTempImage(string $filePath, string $tempPath, string $key = "default"): void
+	{
+		if (!isset(self::$tempImages[$filePath])) {
+			self::$tempImages[$filePath] = [];
+		}
+
+		self::$tempImages[$filePath][$key] = $tempPath;
+	}
+
+	/**
+	 * Get the path of a temp file registered for the given original image file.
+	 *
+	 * @param string $filePath The path of the original image.
+	 * @param string $key      The key the temp file is registered at.
+	 */
+	static function getTempImage(string $filePath, string $key = "default"): ?string
+	{
+		return self::$tempImages[$filePath][$key] ?? null;
+	}
+
+	/**
+	 * Unlink all cached images (i.e. temporary images either downloaded
+	 * or converted) except for the bundled "broken image"
+	 */
+	static function clear(bool $debugPng = false)
+	{
+		foreach (self::$_cache as $file) {
+			if ($file === self::$broken_image) {
+				continue;
+			}
+			if ($debugPng) {
+				print "[clear unlink $file]";
+			}
+			if (file_exists($file)) {
+				unlink($file);
+			}
+		}
+
+		foreach (self::$tempImages as $versions) {
+			foreach ($versions as $file) {
+				if ($file === self::$broken_image) {
+					continue;
+				}
+				if ($debugPng) {
+					print "[unlink temp image $file]";
+				}
+				if (file_exists($file)) {
+					unlink($file);
+				}
+			}
+		}
+
+		self::$_cache = [];
+		self::$tempImages = [];
+	}
+
+	static function detect_type($file, $context = null)
+	{
+		list(, , $type) = Helpers::dompdf_getimagesize($file, $context);
+
+		return $type;
+	}
+
+	static function is_broken($url)
+	{
+		return $url === self::$broken_image;
+	}
 }
 
 if (file_exists(realpath(__DIR__ . "/../../lib/res/broken_image.svg"))) {
-    Cache::$broken_image = realpath(__DIR__ . "/../../lib/res/broken_image.svg");
+	Cache::$broken_image = realpath(__DIR__ . "/../../lib/res/broken_image.svg");
 }

vendor/dompdf/dompdf/src/Renderer/ListBullet.php

Indentation +213 added lines, -213 removed lines

@@ -19,217 +19,217 @@
  */
 class ListBullet extends AbstractRenderer
 {
-    /**
-     * @param $type
-     * @return mixed|string
-     */
-    static function get_counter_chars($type)
-    {
-        static $cache = [];
-
-        if (isset($cache[$type])) {
-            return $cache[$type];
-        }
-
-        $uppercase = false;
-        $text = "";
-
-        switch ($type) {
-            case "decimal-leading-zero":
-            case "decimal":
-            case "1":
-                return "0123456789";
-
-            case "upper-alpha":
-            case "upper-latin":
-            case "A":
-                $uppercase = true;
-            case "lower-alpha":
-            case "lower-latin":
-            case "a":
-                $text = "abcdefghijklmnopqrstuvwxyz";
-                break;
-
-            case "upper-roman":
-            case "I":
-                $uppercase = true;
-            case "lower-roman":
-            case "i":
-                $text = "ivxlcdm";
-                break;
-
-            case "lower-greek":
-                for ($i = 0; $i < 24; $i++) {
-                    $text .= Helpers::unichr($i + 944);
-                }
-                break;
-        }
-
-        if ($uppercase) {
-            $text = strtoupper($text);
-        }
-
-        return $cache[$type] = "$text.";
-    }
-
-    /**
-     * @param int $n
-     * @param string $type
-     * @param int|null $pad
-     *
-     * @return string
-     */
-    private function make_counter($n, $type, $pad = null)
-    {
-        $n = intval($n);
-        $text = "";
-        $uppercase = false;
-
-        switch ($type) {
-            case "decimal-leading-zero":
-            case "decimal":
-            case "1":
-                if ($pad) {
-                    $text = str_pad($n, $pad, "0", STR_PAD_LEFT);
-                } else {
-                    $text = $n;
-                }
-                break;
-
-            case "upper-alpha":
-            case "upper-latin":
-            case "A":
-                $uppercase = true;
-            case "lower-alpha":
-            case "lower-latin":
-            case "a":
-                $text = chr((($n - 1) % 26) + ord('a'));
-                break;
-
-            case "upper-roman":
-            case "I":
-                $uppercase = true;
-            case "lower-roman":
-            case "i":
-                $text = Helpers::dec2roman($n);
-                break;
-
-            case "lower-greek":
-                $text = Helpers::unichr($n + 944);
-                break;
-        }
-
-        if ($uppercase) {
-            $text = strtoupper($text);
-        }
-
-        return "$text.";
-    }
-
-    /**
-     * @param ListBulletFrameDecorator $frame
-     */
-    function render(Frame $frame)
-    {
-        $li = $frame->get_parent();
-        $style = $frame->get_style();
-
-        $this->_set_opacity($frame->get_opacity($style->opacity));
-
-        // Don't render bullets twice if the list item was split
-        if ($li->is_split_off) {
-            return;
-        }
-
-        $font_family = $style->font_family;
-        $font_size = $style->font_size;
-        $baseline = $this->_canvas->get_font_baseline($font_family, $font_size);
-
-        // Handle list-style-image
-        // If list style image is requested but missing, fall back to predefined types
-        if ($frame instanceof ListBulletImage && !Cache::is_broken($img = $frame->get_image_url())) {
-            [$x, $y] = $frame->get_position();
-            $w = $frame->get_width();
-            $h = $frame->get_height();
-            $y += $baseline - $h;
-
-            $this->_canvas->image($img, $x, $y, $w, $h);
-        } else {
-            $bullet_style = $style->list_style_type;
-
-            switch ($bullet_style) {
-                default:
-                case "disc":
-                case "circle":
-                    [$x, $y] = $frame->get_position();
-                    $offset = $font_size * ListBulletFrameDecorator::BULLET_OFFSET;
-                    $r = ($font_size * ListBulletFrameDecorator::BULLET_SIZE) / 2;
-                    $x += $r;
-                    $y += $baseline - $r - $offset;
-                    $o = $font_size * ListBulletFrameDecorator::BULLET_THICKNESS;
-                    $this->_canvas->circle($x, $y, $r, $style->color, $o, null, $bullet_style !== "circle");
-                    break;
-
-                case "square":
-                    [$x, $y] = $frame->get_position();
-                    $offset = $font_size * ListBulletFrameDecorator::BULLET_OFFSET;
-                    $w = $font_size * ListBulletFrameDecorator::BULLET_SIZE;
-                    $y += $baseline - $w - $offset;
-                    $this->_canvas->filled_rectangle($x, $y, $w, $w, $style->color);
-                    break;
-
-                case "decimal-leading-zero":
-                case "decimal":
-                case "lower-alpha":
-                case "lower-latin":
-                case "lower-roman":
-                case "lower-greek":
-                case "upper-alpha":
-                case "upper-latin":
-                case "upper-roman":
-                case "1": // HTML 4.0 compatibility
-                case "a":
-                case "i":
-                case "A":
-                case "I":
-                    $pad = null;
-                    if ($bullet_style === "decimal-leading-zero") {
-                        $pad = strlen($li->get_parent()->get_node()->getAttribute("dompdf-children-count"));
-                    }
-
-                    $node = $frame->get_node();
-
-                    if (!$node->hasAttribute("dompdf-counter")) {
-                        return;
-                    }
-
-                    $index = $node->getAttribute("dompdf-counter");
-                    $text = $this->make_counter($index, $bullet_style, $pad);
-
-                    if (trim($text) === "") {
-                        return;
-                    }
-
-                    $word_spacing = $style->word_spacing;
-                    $letter_spacing = $style->letter_spacing;
-                    $text_width = $this->_dompdf->getFontMetrics()->getTextWidth($text, $font_family, $font_size, $word_spacing, $letter_spacing);
-
-                    [$x, $y] = $frame->get_position();
-                    // Correct for static frame width applied by positioner
-                    $x += $frame->get_width() - $text_width;
-
-                    $this->_canvas->text($x, $y, $text,
-                        $font_family, $font_size,
-                        $style->color, $word_spacing, $letter_spacing);
-
-                case "none":
-                    break;
-            }
-        }
-
-        $id = $frame->get_node()->getAttribute("id");
-        if (strlen($id) > 0) {
-            $this->_canvas->add_named_dest($id);
-        }
-    }
+	/**
+	 * @param $type
+	 * @return mixed|string
+	 */
+	static function get_counter_chars($type)
+	{
+		static $cache = [];
+
+		if (isset($cache[$type])) {
+			return $cache[$type];
+		}
+
+		$uppercase = false;
+		$text = "";
+
+		switch ($type) {
+			case "decimal-leading-zero":
+			case "decimal":
+			case "1":
+				return "0123456789";
+
+			case "upper-alpha":
+			case "upper-latin":
+			case "A":
+				$uppercase = true;
+			case "lower-alpha":
+			case "lower-latin":
+			case "a":
+				$text = "abcdefghijklmnopqrstuvwxyz";
+				break;
+
+			case "upper-roman":
+			case "I":
+				$uppercase = true;
+			case "lower-roman":
+			case "i":
+				$text = "ivxlcdm";
+				break;
+
+			case "lower-greek":
+				for ($i = 0; $i < 24; $i++) {
+					$text .= Helpers::unichr($i + 944);
+				}
+				break;
+		}
+
+		if ($uppercase) {
+			$text = strtoupper($text);
+		}
+
+		return $cache[$type] = "$text.";
+	}
+
+	/**
+	 * @param int $n
+	 * @param string $type
+	 * @param int|null $pad
+	 *
+	 * @return string
+	 */
+	private function make_counter($n, $type, $pad = null)
+	{
+		$n = intval($n);
+		$text = "";
+		$uppercase = false;
+
+		switch ($type) {
+			case "decimal-leading-zero":
+			case "decimal":
+			case "1":
+				if ($pad) {
+					$text = str_pad($n, $pad, "0", STR_PAD_LEFT);
+				} else {
+					$text = $n;
+				}
+				break;
+
+			case "upper-alpha":
+			case "upper-latin":
+			case "A":
+				$uppercase = true;
+			case "lower-alpha":
+			case "lower-latin":
+			case "a":
+				$text = chr((($n - 1) % 26) + ord('a'));
+				break;
+
+			case "upper-roman":
+			case "I":
+				$uppercase = true;
+			case "lower-roman":
+			case "i":
+				$text = Helpers::dec2roman($n);
+				break;
+
+			case "lower-greek":
+				$text = Helpers::unichr($n + 944);
+				break;
+		}
+
+		if ($uppercase) {
+			$text = strtoupper($text);
+		}
+
+		return "$text.";
+	}
+
+	/**
+	 * @param ListBulletFrameDecorator $frame
+	 */
+	function render(Frame $frame)
+	{
+		$li = $frame->get_parent();
+		$style = $frame->get_style();
+
+		$this->_set_opacity($frame->get_opacity($style->opacity));
+
+		// Don't render bullets twice if the list item was split
+		if ($li->is_split_off) {
+			return;
+		}
+
+		$font_family = $style->font_family;
+		$font_size = $style->font_size;
+		$baseline = $this->_canvas->get_font_baseline($font_family, $font_size);
+
+		// Handle list-style-image
+		// If list style image is requested but missing, fall back to predefined types
+		if ($frame instanceof ListBulletImage && !Cache::is_broken($img = $frame->get_image_url())) {
+			[$x, $y] = $frame->get_position();
+			$w = $frame->get_width();
+			$h = $frame->get_height();
+			$y += $baseline - $h;
+
+			$this->_canvas->image($img, $x, $y, $w, $h);
+		} else {
+			$bullet_style = $style->list_style_type;
+
+			switch ($bullet_style) {
+				default:
+				case "disc":
+				case "circle":
+					[$x, $y] = $frame->get_position();
+					$offset = $font_size * ListBulletFrameDecorator::BULLET_OFFSET;
+					$r = ($font_size * ListBulletFrameDecorator::BULLET_SIZE) / 2;
+					$x += $r;
+					$y += $baseline - $r - $offset;
+					$o = $font_size * ListBulletFrameDecorator::BULLET_THICKNESS;
+					$this->_canvas->circle($x, $y, $r, $style->color, $o, null, $bullet_style !== "circle");
+					break;
+
+				case "square":
+					[$x, $y] = $frame->get_position();
+					$offset = $font_size * ListBulletFrameDecorator::BULLET_OFFSET;
+					$w = $font_size * ListBulletFrameDecorator::BULLET_SIZE;
+					$y += $baseline - $w - $offset;
+					$this->_canvas->filled_rectangle($x, $y, $w, $w, $style->color);
+					break;
+
+				case "decimal-leading-zero":
+				case "decimal":
+				case "lower-alpha":
+				case "lower-latin":
+				case "lower-roman":
+				case "lower-greek":
+				case "upper-alpha":
+				case "upper-latin":
+				case "upper-roman":
+				case "1": // HTML 4.0 compatibility
+				case "a":
+				case "i":
+				case "A":
+				case "I":
+					$pad = null;
+					if ($bullet_style === "decimal-leading-zero") {
+						$pad = strlen($li->get_parent()->get_node()->getAttribute("dompdf-children-count"));
+					}
+
+					$node = $frame->get_node();
+
+					if (!$node->hasAttribute("dompdf-counter")) {
+						return;
+					}
+
+					$index = $node->getAttribute("dompdf-counter");
+					$text = $this->make_counter($index, $bullet_style, $pad);
+
+					if (trim($text) === "") {
+						return;
+					}
+
+					$word_spacing = $style->word_spacing;
+					$letter_spacing = $style->letter_spacing;
+					$text_width = $this->_dompdf->getFontMetrics()->getTextWidth($text, $font_family, $font_size, $word_spacing, $letter_spacing);
+
+					[$x, $y] = $frame->get_position();
+					// Correct for static frame width applied by positioner
+					$x += $frame->get_width() - $text_width;
+
+					$this->_canvas->text($x, $y, $text,
+						$font_family, $font_size,
+						$style->color, $word_spacing, $letter_spacing);
+
+				case "none":
+					break;
+			}
+		}
+
+		$id = $frame->get_node()->getAttribute("id");
+		if (strlen($id) > 0) {
+			$this->_canvas->add_named_dest($id);
+		}
+	}
 }

Spacing +2 added lines, -2 removed lines

@@ -147,7 +147,7 @@ 
 
         // Handle list-style-image
         // If list style image is requested but missing, fall back to predefined types
-        if ($frame instanceof ListBulletImage && !Cache::is_broken($img = $frame->get_image_url())) {
+        if ($frame instanceof ListBulletImage && ! Cache::is_broken($img = $frame->get_image_url())) {
             [$x, $y] = $frame->get_position();
             $w = $frame->get_width();
             $h = $frame->get_height();
@@ -199,7 +199,7 @@ 
 
                     $node = $frame->get_node();
 
-                    if (!$node->hasAttribute("dompdf-counter")) {
+                    if ( ! $node->hasAttribute("dompdf-counter")) {
                         return;
                     }
 

vendor/dompdf/dompdf/src/Renderer/Block.php

Indentation +67 added lines, -67 removed lines

@@ -18,71 +18,71 @@
 class Block extends AbstractRenderer
 {
 
-    /**
-     * @param Frame $frame
-     */
-    function render(Frame $frame)
-    {
-        $style = $frame->get_style();
-        $node = $frame->get_node();
-        $dompdf = $this->_dompdf;
-
-        $this->_set_opacity($frame->get_opacity($style->opacity));
-
-        [$x, $y, $w, $h] = $frame->get_border_box();
-
-        if ($node->nodeName === "body") {
-            // Margins should be fully resolved at this point
-            $mt = $style->margin_top;
-            $mb = $style->margin_bottom;
-            $h = $frame->get_containing_block("h") - $mt - $mb;
-        }
-
-        $border_box = [$x, $y, $w, $h];
-
-        // Draw our background, border and content
-        $this->_render_background($frame, $border_box);
-        $this->_render_border($frame, $border_box);
-        $this->_render_outline($frame, $border_box);
-
-        // Handle anchors & links
-        if ($node->nodeName === "a" && $href = $node->getAttribute("href")) {
-            $href = Helpers::build_url($dompdf->getProtocol(), $dompdf->getBaseHost(), $dompdf->getBasePath(), $href) ?? $href;
-            $this->_canvas->add_link($href, $x, $y, $w, $h);
-        }
-
-        $id = $frame->get_node()->getAttribute("id");
-        if (strlen($id) > 0) {
-            $this->_canvas->add_named_dest($id);
-        }
-
-        $this->debugBlockLayout($frame, "red", false);
-    }
-
-    protected function debugBlockLayout(Frame $frame, ?string $color, bool $lines = false): void
-    {
-        $options = $this->_dompdf->getOptions();
-        $debugLayout = $options->getDebugLayout();
-
-        if (!$debugLayout) {
-            return;
-        }
-
-        if ($color && $options->getDebugLayoutBlocks()) {
-            $this->_debug_layout($frame->get_border_box(), $color);
-
-            if ($options->getDebugLayoutPaddingBox()) {
-                $this->_debug_layout($frame->get_padding_box(), $color, [0.5, 0.5]);
-            }
-        }
-
-        if ($lines && $options->getDebugLayoutLines() && $frame instanceof BlockFrameDecorator) {
-            [$cx, , $cw] = $frame->get_content_box();
-
-            foreach ($frame->get_line_boxes() as $line) {
-                $lw = $cw - $line->left - $line->right;
-                $this->_debug_layout([$cx + $line->left, $line->y, $lw, $line->h], "orange");
-            }
-        }
-    }
+	/**
+	 * @param Frame $frame
+	 */
+	function render(Frame $frame)
+	{
+		$style = $frame->get_style();
+		$node = $frame->get_node();
+		$dompdf = $this->_dompdf;
+
+		$this->_set_opacity($frame->get_opacity($style->opacity));
+
+		[$x, $y, $w, $h] = $frame->get_border_box();
+
+		if ($node->nodeName === "body") {
+			// Margins should be fully resolved at this point
+			$mt = $style->margin_top;
+			$mb = $style->margin_bottom;
+			$h = $frame->get_containing_block("h") - $mt - $mb;
+		}
+
+		$border_box = [$x, $y, $w, $h];
+
+		// Draw our background, border and content
+		$this->_render_background($frame, $border_box);
+		$this->_render_border($frame, $border_box);
+		$this->_render_outline($frame, $border_box);
+
+		// Handle anchors & links
+		if ($node->nodeName === "a" && $href = $node->getAttribute("href")) {
+			$href = Helpers::build_url($dompdf->getProtocol(), $dompdf->getBaseHost(), $dompdf->getBasePath(), $href) ?? $href;
+			$this->_canvas->add_link($href, $x, $y, $w, $h);
+		}
+
+		$id = $frame->get_node()->getAttribute("id");
+		if (strlen($id) > 0) {
+			$this->_canvas->add_named_dest($id);
+		}
+
+		$this->debugBlockLayout($frame, "red", false);
+	}
+
+	protected function debugBlockLayout(Frame $frame, ?string $color, bool $lines = false): void
+	{
+		$options = $this->_dompdf->getOptions();
+		$debugLayout = $options->getDebugLayout();
+
+		if (!$debugLayout) {
+			return;
+		}
+
+		if ($color && $options->getDebugLayoutBlocks()) {
+			$this->_debug_layout($frame->get_border_box(), $color);
+
+			if ($options->getDebugLayoutPaddingBox()) {
+				$this->_debug_layout($frame->get_padding_box(), $color, [0.5, 0.5]);
+			}
+		}
+
+		if ($lines && $options->getDebugLayoutLines() && $frame instanceof BlockFrameDecorator) {
+			[$cx, , $cw] = $frame->get_content_box();
+
+			foreach ($frame->get_line_boxes() as $line) {
+				$lw = $cw - $line->left - $line->right;
+				$this->_debug_layout([$cx + $line->left, $line->y, $lw, $line->h], "orange");
+			}
+		}
+	}
 }

Spacing +2 added lines, -2 removed lines

@@ -64,7 +64,7 @@ 
         $options = $this->_dompdf->getOptions();
         $debugLayout = $options->getDebugLayout();
 
-        if (!$debugLayout) {
+        if ( ! $debugLayout) {
             return;
         }
 
@@ -77,7 +77,7 @@ 
         }
 
         if ($lines && $options->getDebugLayoutLines() && $frame instanceof BlockFrameDecorator) {
-            [$cx, , $cw] = $frame->get_content_box();
+            [$cx,, $cw] = $frame->get_content_box();
 
             foreach ($frame->get_line_boxes() as $line) {
                 $lw = $cw - $line->left - $line->right;