109 lines
3.2 KiB
PHP
109 lines
3.2 KiB
PHP
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<?php
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use setasign\Fpdi\Fpdi;
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use setasign\Fpdi\PdfParser\Type\PdfDictionary;
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use setasign\Fpdi\PdfParser\Type\PdfHexString;
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use setasign\Fpdi\PdfParser\Type\PdfName;
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use setasign\Fpdi\PdfParser\Type\PdfString;
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use setasign\Fpdi\PdfParser\Type\PdfNumeric;
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use setasign\Fpdi\PdfParser\Type\PdfBoolean;
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use setasign\Fpdi\PdfParser\Type\PdfType;
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require_once '../vendor/autoload.php';
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$GLOBALS['paths'] = [
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__DIR__ . '/../tests/_files/',
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'/var/www/privatewebs/jan.slabon/default/html/pdfs/'
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];
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require 'filelist.php';
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class FpdiWithInfo extends Fpdi
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{
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/**
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* Returns the data of the Info dictionary (only scalar values are returned).
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*
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* @return array
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* @throws \setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException
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* @throws \setasign\Fpdi\PdfParser\PdfParserException
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* @throws \setasign\Fpdi\PdfParser\Type\PdfTypeException
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*/
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public function getInfoFromSourceFile()
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{
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if ($this->currentReaderId === null) {
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throw new \BadMethodCallException('No reader initiated. Call setSourceFile() first.');
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}
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$reader = $this->getPdfReader($this->currentReaderId);
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$parser = $reader->getParser();
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$trailer = $reader->getParser()->getCrossReference()->getTrailer();
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$info = PdfType::resolve(PdfDictionary::get($trailer, 'Info'), $parser);
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$result = [];
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if ($info instanceof PdfDictionary) {
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foreach ($info->value as $key => $value) {
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$value = PdfType::resolve($value, $parser);
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switch (get_class($value)) {
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case PdfString::class:
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$result[$key] = self::pdfStringToUtf8(PdfString::unescape($value->value));
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break;
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case PdfHexString::class:
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$result[$key] = self::pdfStringToUtf8(\hex2bin($value->value));
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break;
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case PdfName::class:
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$result[$key] = PdfName::unescape($value->value);
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break;
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case PdfNumeric::class:
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case PdfBoolean::class:
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$result[$key] = $value->value;
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break;
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}
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}
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}
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return $result;
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}
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/**
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* Converts a PDF string to UTF-8 encoding.
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*
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* @param string $string
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* @return false|string
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*/
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protected static function pdfStringToUtf8($string)
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{
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static $table;
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if (strpos($string, "\xFE\xFF") === 0 || strpos($string, "\xFF\xFE") === 0) {
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return \iconv('UTF-16', 'UTF-8', $string);
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}
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if ($table === null) {
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$table = \json_decode(file_get_contents('assets/pdfdoc-encoding.json'), true);
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}
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$result = '';
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for ($pos = 0, $len = strlen($string); $pos < $len; $pos++) {
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$result .= $table[ord($string[$pos])];
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}
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return $result;
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}
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}
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$files = $_GET['f'];
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if (!is_array($files)) {
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$files = [$files];
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}
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foreach ($files as $file) {
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$pdf = new FpdiWithInfo();
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$pdf->setSourceFile($file);
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echo "<pre>";
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var_dump($pdf->getInfoFromSourceFile());
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echo "</pre>";
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}
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