PDF Page as Appearance
This demo shows you how to use a PDF page in the XObject appearance module.
PHP
use setasign\SetaPDF2\Core\Document; use setasign\SetaPDF2\Core\PageBoundaries; use setasign\SetaPDF2\Core\Writer\HttpWriter; use setasign\SetaPDF2\Signer\Signature\Appearance\XObject; use setasign\SetaPDF2\Signer\Signature\Module\Pades as PadesModule; use setasign\SetaPDF2\Signer\SignatureField; use setasign\SetaPDF2\Signer\Signer; // load and register the autoload function require_once __DIR__ . '/../../../../../bootstrap.php'; $writer = new HttpWriter('visible-signature.pdf', true); $document = Document::loadByFilename( $assetsDirectory . '/pdfs/camtown/Laboratory-Report.pdf', $writer ); // create a signer instance $signer = new Signer($document); // add a visible signature field $field = $signer->addSignatureField( SignatureField::DEFAULT_FIELD_NAME, 1, SignatureField::POSITION_RIGHT_TOP, ['x' => -160, 'y' => -100], 180, 70 ); // and define that you want to use this field $signer->setSignatureFieldName($field->getQualifiedName()); $certificatePath = $assetsDirectory . '/certificates/setapdf-no-pw.pem'; // now create a signature module $module = new PadesModule(); // pass the path to the certificate $module->setCertificate('file://' . $certificatePath); // set the path to the private key (in this demo the key is also saved in the certificate file) $module->setPrivateKey('file://' . $certificatePath, ''); // load the PDF document and ... $graphicDocument = Document::loadByFilename($assetsDirectory . '/pdfs/misc/Handwritten-Signature.pdf'); // convert the first page to a XObject $xObject = $graphicDocument ->getCatalog() ->getPages() ->getPage(1) ->toXObject($document, PageBoundaries::ART_BOX); // which can be used to initiate a XObject appearance instance $appearance = new XObject($xObject); // pass the appearance module to the signer instance $signer->setAppearance($appearance); // sign the document $signer->sign($module);