Repeat a Single Page
A simple demo showing how to repeat a page several times.
If the same page is merged from a single document instance (internally cached by the merger component) all pages will share the same objects. That means that changing e.g. the content (stream) of a page all other pages will be changed, too. This results in a very smal file size but can produce problems with PDF viewer or editor applications.
To ensure that all pages and objects are unique, you have to use a new document instance for each appended page.
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';
$shareObjects = displaySelect('Share objects:', [1 => 'yes', 0 => 'no']);
// initiate a merger instance with an initial document
$merger = new Merger();
$path = $assetsDirectory . '/pdfs/camtown/Letterhead.pdf';
for ($i = 100; $i > 0; $i--) {
if ($shareObjects) {
$merger->addFile($path, 1);
} else {
// load the initial document
$document = Document::loadByFilename($path);
$merger->addDocument($document, 1);
}
}
// now merge the documents
$merger->merge();
$document = $merger->getDocument();
$document->setWriter(new HttpWriter('repeated.pdf', true));
// save and finish the initial document
$document->save()->finish();