133 lines
3.3 KiB
PHP
133 lines
3.3 KiB
PHP
<?php
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namespace App\Repositories\Core;
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use Barryvdh\Debugbar\Facades\Debugbar;
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use Barryvdh\DomPDF\Facade\Pdf as DomPDF;
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use Barryvdh\Snappy\Facades\SnappyPdf;
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use GravityMedia\Ghostscript\Ghostscript;
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use Imagick;
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use Mpdf\Mpdf;
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use Spatie\PdfToText\Pdf as PDFToText;
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use Symfony\Component\Process\Process;
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class PDF
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{
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public static function view($view, $data, $filename = 'file.pdf')
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{
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Debugbar::disable();
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$pdf = DomPDF::loadView($view, $data);
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return $pdf->download($filename);
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}
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public static function countPages($filename)
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{
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$image = new Imagick();
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$image->pingImage($filename);
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return $image->getNumberImages();
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/*
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$pdftext = file_get_contents($filename);
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return preg_match_all("/\/Page\W*(\d+)/", $pdftext, $dummy);
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*/
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}
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public function getPDFPages($document)
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{
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$cmd = '/path/to/pdfinfo'; // Linux
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$cmd = 'C:\\path\\to\\pdfinfo.exe'; // Windows
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// Parse entire output
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// Surround with double quotes if file name has spaces
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exec("$cmd \"$document\"", $output);
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// Iterate through lines
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$pagecount = 0;
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foreach ($output as $op) {
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// Extract the number
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if (preg_match("/Pages:\s*(\d+)/i", $op, $matches) === 1) {
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$pagecount = intval($matches[1]);
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break;
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}
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}
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return $pagecount;
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}
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public static function getText($filename)
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{
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return PDFToText::getText($filename);
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}
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public static function convertHTML($html)
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{
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$mpdf = new Mpdf();
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$mpdf->WriteHTML($html);
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return $mpdf->Output();
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}
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public static function convertURL($url, $filename = 'sample.pdf')
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{
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$pdf = SnappyPdf::loadFile($url);
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return $pdf->download($filename);
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}
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public static function convertIfNeeded($filename)
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{
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if (self::getVersion($filename) > 1.4) {
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self::downgrade2($filename);
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}
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}
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public static function getVersion($filename)
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{
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$pdf = fopen($filename, 'r');
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if (! $pdf) {
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echo 'error opening the file.';
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return false;
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}
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$lineFirst = fgets($pdf);
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fclose($pdf);
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preg_match_all('!\d+!', $lineFirst, $matches);
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$version = implode('.', $matches[0]);
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return (float) $version;
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}
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public static function downgrade($filename)
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{
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$newFilename = $filename.'-temp';
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$ghostscript = new Ghostscript([
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'quiet' => false,
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]);
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$device = $ghostscript->createPdfDevice($newFilename);
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$device->setCompatibilityLevel(1.4);
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$process = $device->createProcess($filename);
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$process->run(function ($type, $buffer) {
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if ($type === Process::ERR) {
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throw new \RuntimeException($buffer);
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}
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});
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unlink($filename);
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rename($newFilename, $filename);
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}
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public static function downgrade2($filename)
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{
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$newFilename = $filename.'-temp';
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$options = '-dBATCH -dCompatibilityLevel=1.4 -dNOPAUSE -q -sDEVICE=pdfwrite';
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shell_exec("gs {$options} -sOutputFile=\"{$newFilename}\" \"{$filename}\"");
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unlink($filename);
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rename($newFilename, $filename);
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}
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}
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