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<?php |
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/** |
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* PDFtk wrapper |
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* |
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* @copyright 2014-2022 Institute of Legal Medicine, Medical University of Innsbruck |
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* @author Andreas Erhard <[email protected]> |
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* @license LGPL-3.0-only |
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* @link http://www.gerichtsmedizin.at/ |
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* |
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* @package pdftk |
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*/ |
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namespace Gmi\Toolkit\Pdftk; |
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use Gmi\Toolkit\Pdftk\Exception\SplitException; |
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use Exception; |
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/** |
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* Splits PDF files. |
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*/ |
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class Splitter |
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{ |
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/** |
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* @var PdftkWrapper |
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*/ |
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private $wrapper; |
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/** |
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* Constructor. |
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* |
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* @param PdftkWrapper $wrapper |
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*/ |
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public function __construct(PdftkWrapper $wrapper = null) |
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{ |
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$this->wrapper = $wrapper ?: new PdftkWrapper(); |
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} |
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/** |
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* Splits a PDF according to the provided filename => pages mapping. |
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* |
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* @param string $inputFile Filename of the input file which should be split |
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* @param array $mapping Mapping of output filename to page numbers |
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* @param string $outputFolder Folder where the output files should be stored (without trailing slash). |
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* If the output folder is null, the filenames of the mapping |
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* (which can contain a path) are used as they are. |
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* |
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* @throws SplitException if the PDF split fails |
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*/ |
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public function split($inputFile, $mapping, $outputFolder = null) |
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{ |
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$commandLines = $this->buildCommandLines($inputFile, $mapping, $outputFolder); |
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foreach ($commandLines as $commandLine) { |
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$process = $this->wrapper->createProcess($commandLine); |
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try { |
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$process->mustRun(); |
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} catch (Exception $e) { |
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throw new SplitException( |
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sprintf('Failed to split PDF "%s"! Error: %s', $inputFile, $e->getMessage()), |
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0, |
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$e, |
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$process->getErrorOutput(), |
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$process->getOutput() |
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); |
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} |
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} |
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} |
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/** |
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* Builds the pdftk command lines for splitting. |
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* |
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* @param string $inputFile |
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* @param array $mapping |
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* @param string $outputFolder |
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* |
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* @return string[] |
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*/ |
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private function buildCommandLines($inputFile, $mapping, $outputFolder = null) |
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{ |
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$commandLines = []; |
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foreach ($mapping as $filename => $pages) { |
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if ($outputFolder) { |
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$target = sprintf('%s/%s', $outputFolder, $filename); |
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} else { |
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$target = $filename; |
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} |
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$commandLines[] = sprintf( |
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'%s %s cat %s output %s', |
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$this->wrapper->getBinary(), |
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escapeshellarg($inputFile), |
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implode(' ', $pages), |
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escapeshellarg($target) |
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); |
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} |
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return $commandLines; |
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} |
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} |
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gmitirol /
toolkit-pdftk
