currentReaderId === null) { throw new \BadMethodCallException('No reader initiated. Call setSourceFile() first.'); } $reader = $this->getPdfReader($this->currentReaderId); $parser = $reader->getParser(); $trailer = $reader->getParser()->getCrossReference()->getTrailer(); $info = PdfType::resolve(PdfDictionary::get($trailer, 'Info'), $parser); $result = []; if ($info instanceof PdfDictionary) { foreach ($info->value as $key => $value) { $value = PdfType::resolve($value, $parser); switch (get_class($value)) { case PdfString::class: $result[$key] = self::pdfStringToUtf8(PdfString::unescape($value->value)); break; case PdfHexString::class: $result[$key] = self::pdfStringToUtf8(\hex2bin($value->value)); break; case PdfName::class: $result[$key] = PdfName::unescape($value->value); break; case PdfNumeric::class: case PdfBoolean::class: $result[$key] = $value->value; break; } } } return $result; } /** * Converts a PDF string to UTF-8 encoding. * * @param string $string * @return false|string */ protected static function pdfStringToUtf8($string) { static $table; if (strpos($string, "\xFE\xFF") === 0 || strpos($string, "\xFF\xFE") === 0) { return \iconv('UTF-16', 'UTF-8', $string); } if ($table === null) { $table = \json_decode(file_get_contents('assets/pdfdoc-encoding.json'), true); } $result = ''; for ($pos = 0, $len = strlen($string); $pos < $len; $pos++) { $result .= $table[ord($string[$pos])]; } return $result; } } $files = $_GET['f']; if (!is_array($files)) { $files = [$files]; } foreach ($files as $file) { $pdf = new FpdiWithInfo(); $pdf->setSourceFile($file); echo "

";
    var_dump($pdf->getInfoFromSourceFile());
    echo "

"; }