List and Extract Attachments
This demo get information about embedded files in a PDF document and allows you to extract them as well.
PHP
<?php // load and register the autoload function require_once '../../../../../bootstrap.php'; // prepare some files $files = [ $assetsDirectory . '/pdfs/tektown/products/All-Portfolio.pdf', $assetsDirectory . '/pdfs/Logos-Portfolio.pdf', ]; $path = displayFiles($files); // create a document $document = SetaPDF_Core_Document::loadByFilename($path); // get names $names = $document->getCatalog()->getNames(); // get the "embedded files" name tree $embeddedFiles = $names->getEmbeddedFiles(); // extract the file if (isset($_GET['name'])) { $file = $embeddedFiles->get($_GET['name']); if ($file instanceof SetaPDF_Core_FileSpecification) { // resolve the filename $filename = $file->getFileSpecification(); // resolve the file stream $embeddedFileStream = $file->getEmbeddedFileStream(); // get the content type // $contentType = $embeddedFileStream->getMimeType(); // Sadly this is sometimes faulty or "null", so we force a download here: $contentType = 'application/force-download'; // pass the file to the client $stream = $embeddedFileStream->getStream(); header('Content-Type: ' . $contentType); header('Content-Disposition: attachment; ' . SetaPDF_Core_Writer_Http::encodeFilenameForHttpHeader($filename)); header('Content-Transfer-Encoding: binary'); header('Content-Length: ' . strlen($stream)); echo $stream; die(); } } $files = $embeddedFiles->getAll(); foreach ($files AS $name => $file) { $filename = $file->getFileSpecification(); $size = null; $params = $file->getEmbeddedFileStream()->getParams(); if (isset($params[SetaPDF_Core_EmbeddedFileStream::PARAM_SIZE])) { $size = $params[SetaPDF_Core_EmbeddedFileStream::PARAM_SIZE]; } echo '<a href="?f=' . urlencode($_GET['f']) . '&name=' . urlencode($name) . '">'; echo htmlspecialchars($filename) . '</a>'; if ($size) { echo ' (' . $size . ' Bytes)'; } echo '<br />'; }