function SignPDF()
{
$infile = '../../TestFiles/doc_to_sign.pdf';
$outfile = '../../TestFiles/Output/signed_doc.pdf';
$certfile = '../../TestFiles/pdftron.pfx';
$imagefile = '../../TestFiles/signature.jpg';
$result = true;
try {
echo nl2br('Signing PDF document: "' . $infile . '".' . PHP_EOL);
// Open an existing PDF
$doc = new PDFDoc($infile);
// Add an StdSignatureHandler instance to PDFDoc, making sure to keep track of it using the ID returned.
$sigHandlerId = $doc->AddStdSignatureHandler($certfile, "password");
// Obtain the signature form field from the PDFDoc via Annotation.
$sigField = $doc->GetField('Signature1');
$widgetAnnot = new Widget($sigField->GetSDFObj());
# Tell PDFNetC to use the SignatureHandler created to sign the new signature form field.
$sigDict = $sigField->UseSignatureHandler($sigHandlerId);
// Add more information to the signature dictionary.
$sigDict->PutName('SubFilter', 'adbe.pkcs7.detached');
$sigDict->PutString('Name', 'PDFTron');
$sigDict->PutString('Location', 'Vancouver, BC');
$sigDict->PutString('Reason', 'Document verification.');
// Create a signature appearance
$apWriter = new ElementWriter();
$apBuilder = new ElementBuilder();
$apWriter->Begin($doc->GetSDFDoc());
$sigImg = Image::Create($doc->GetSDFDoc(), $imagefile);
$w = floatval($sigImg->GetImageWidth());
$h = floatval($sigImg->GetImageHeight());
$apElement = $apBuilder->CreateImage($sigImg, 0.0, 0.0, $w, $h);
$apWriter->WritePlacedElement($apElement);
$apObj = $apWriter->End();
$apObj->PutRect('BBox', 0.0, 0.0, $w, $h);
$apObj->PutName('Subtype', 'Form');
$apObj->PutName('Type', 'XObject');
$apWriter->Begin($doc->GetSDFDoc());
$apElement = $apBuilder->CreateForm($apObj);
$apWriter->WritePlacedElement($apElement);
$apObj = $apWriter->End();
$apObj->PutRect('BBox', 0.0, 0.0, $w, $h);
$apObj->PutName('Subtype', 'Form');
$apObj->PutName('Type', 'XObject');
$widgetAnnot->SetAppearance($apObj);
$widgetAnnot->RefreshAppearance();
// Save the PDFDoc. Once the method below is called, PDFNetC will also sign the document using the information
// provided.
$doc->Save($outfile, 0);
echo nl2br('Finished signing PDF document' . PHP_EOL);
$doc->Close();
} catch (Exception $e) {
echo nl2br($e->getMessage() . PHP_EOL);
echo nl2br($e->getTraceAsString() . PHP_EOL);
$result = false;
}
return $result;
}
PDFNet::Initialize();
$doc = new PDFDoc();
// Create three layers...
$image_layer = CreateLayer($doc, "Image Layer");
$text_layer = CreateLayer($doc, "Text Layer");
$vector_layer = CreateLayer($doc, "Vector Layer");
// Start a new page ------------------------------------
$page = $doc->PageCreate();
$builder = new ElementBuilder();
// ElementBuilder is used to build new Element objects
$writer = new ElementWriter();
// ElementWriter is used to write Elements to the page
$writer->Begin($page);
// Begin writing to the page
// Add new content to the page and associate it with one of the layers.
$element = $builder->CreateForm(CreateGroup1($doc, $image_layer->GetSDFObj()));
$writer->WriteElement($element);
$element = $builder->CreateForm(CreateGroup2($doc, $vector_layer->GetSDFObj()));
$writer->WriteElement($element);
// Add the text layer to the page...
if (false) {
// A bit more advanced example of how to create an OCMD text layer that
// is visible only if text, image and path layers are all 'ON'.
// An example of how to set 'Visibility Policy' in OCMD.
$ocgs = $doc->CreateIndirectArray();
$ocgs->PushBack($image_layer->GetSDFObj());
$ocgs->PushBack($vector_layer->GetSDFObj());
$ocgs->PushBack($text_layer->GetSDFObj());
$text_ocmd = OCMD::Create($doc, $ocgs, OCMD::e_AllOn);
$element = $builde->CreateForm(CreateGroup3($doc, $text_ocmd->GetSDFObj()));
} else {
}
$new_doc = new PDFDoc();
$imported_pages = $new_doc->ImportPages($import_pages);
// Paper dimension for A3 format in points. Because one inch has
// 72 points, 11.69 inch 72 = 841.69 points
$media_box = new Rect(0.0, 0.0, 1190.88, 841.6900000000001);
$mid_point = $media_box->Width() / 2;
$builder = new ElementBuilder();
$writer = new ElementWriter();
for ($i = 0; $i < $imported_pages->size(); ++$i) {
// Create a blank new A3 page and place on it two pages from the input document.
$new_page = $new_doc->PageCreate($media_box);
$writer->Begin($new_page);
// Place the first page
$src_page = $imported_pages->get($i);
$element = $builder->CreateForm($src_page);
$sc_x = $mid_point / $src_page->GetPageWidth();
$sc_y = $media_box->Height() / $src_page->GetPageHeight();
$scale = $sc_x < $sc_y ? $sc_x : $sc_y;
// min(sc_x, sc_y)
$element->GetGState()->SetTransform($scale, 0.0, 0.0, $scale, 0.0, 0.0);
$writer->WritePlacedElement($element);
// Place the second page
++$i;
if ($i < $imported_pages->size()) {
$src_page = $imported_pages->get($i);
$element = $builder->CreateForm($src_page);
$sc_x = $mid_point / $src_page->GetPageWidth();
$sc_y = $media_box->Height() / $src_page->GetPageHeight();
$scale = $sc_x < $sc_y ? $sc_x : $sc_y;
// min(sc_x, sc_y)
