SetaPDF Demos

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Merge Encrypted PDFs

This demo shows you how to merge encrypted PDF documents.

Encrypted documents requires you to be authenticated accordingly. So it is needed to access the document instance which is possible through a helper method of the merger component or by creating the instance manually:

PHP
<?php

use setasign\SetaPDF2\Core\Document;
use setasign\SetaPDF2\Core\Writer\HttpWriter;
use setasign\SetaPDF2\Merger\Merger;

// load and register the autoload function
require_once __DIR__ . '/../../../../../bootstrap.php';

$merger = new Merger();

$filename = $assetsDirectory . '/pdfs/Brand-Guide-Encrypted (owner-pw setasign).pdf';
// use the helper method to register the document instance internally:
$encryptedDocument = $merger->getDocumentByFilename($filename);
if ($encryptedDocument->hasSecHandler()) {
    $secHandler = $encryptedDocument->getSecHandler();
    $secHandler->auth('setasign');
}

// add the file (internally the same document instance will be used)
$merger->addFile($filename);

// now create an instance manually
$filename = $assetsDirectory . '/pdfs/Fuchslocher-Example (owner-pw setasign).pdf';
$encryptedDocument = Document::loadByFilename($filename);
if ($encryptedDocument->hasSecHandler()) {
    $secHandler = $encryptedDocument->getSecHandler();
    $secHandler->auth('setasign');
}

// now use the addDocument() method
$merger->addDocument($encryptedDocument);

// merge the documents
$merger->merge();

$document = $merger->getDocument();
$document->setWriter(new HttpWriter('result.pdf', true));
$document->save()->finish();