// Replace the Prefix in the decimal labels (from example 1).
$label = $doc->GetPageLabel(4);
if ($label->IsValid()) {
$label->SetPrefix("A");
$label->SetStart(1);
}
// Add a new label
$new_label = PageLabel::Create($doc->GetSDFDoc(), PageLabel::e_decimal, "B", 1);
$doc->SetPageLabel(10, $new_label);
// starting from page 10.
$doc->Save($output_path . "newsletter_with_pagelabels_modified.pdf", SDFDoc::e_linearized);
echo nl2br("Done. Result saved in newsletter_with_pagelabels_modified.pdf...\n");
$page_num = $doc->GetPageCount();
for ($i = 1; $i <= $page_num; ++$i) {
echo "Page number: " . $i;
$label = $doc->GetPageLabel($i);
if ($label->IsValid()) {
echo nl2br(" Label: " . $label->GetLabelTitle($i) . "\n");
} else {
echo nl2br(" No Label.\n");
}
}
$doc->Close();
//-----------------------------------------------------------
// Example 4: Delete all page labels in an existing PDF document.
//-----------------------------------------------------------
$doc = new PDFDoc($output_path . "newsletter_with_pagelabels.pdf");
$doc->GetRoot()->Erase("PageLabels");
$doc->Save($output_path . "newsletter_with_pagelabels_removed.pdf", SDFDoc::e_linearized);
echo nl2br("Done. Result saved in newsletter_with_pagelabels_removed.pdf...\n");
// ...
function CertifyPDF()
{
$infile = '../../TestFiles/newsletter.pdf';
$outfile = '../../TestFiles/Output/newsletter_certified.pdf';
$certfile = '../../TestFiles/pdftron.pfx';
$result = true;
try {
echo nl2br('Certifying 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");
// Create a new signature form field in the PDFDoc.
$sigField = $doc->FieldCreate('Signature1', Field::e_signature);
// Assign the form field as an annotation widget to the PDFDoc so that a signature appearance can be added.
$page1 = $doc->GetPage(1);
$widgetAnnot = Widget::Create($doc->GetSDFDoc(), new Rect(0.0, 0.0, 0.0, 0.0), $sigField);
$page1->AnnotPushBack($widgetAnnot);
$widgetAnnot->SetPage($page1);
$widgetObj = $widgetAnnot->GetSDFObj();
$widgetObj->PutNumber('F', 132.0);
$widgetObj->PutName('Type', 'Annot');
// 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.');
// Appearance can be added to the widget annotation. Please see the "SignPDF()" function for details.
// Add this sigDict as DocMDP in Perms dictionary from root
$root = $doc->GetRoot();
$perms = $root->PutDict('Perms');
// add the sigDict as DocMDP (indirect) in Perms
$perms->Put('DocMDP', $sigDict);
// add the additional DocMDP transform params
$refObj = $sigDict->PutArray("Reference");
$transform = $refObj->PushBackDict();
$transform->PutName("TransformMethod", "DocMDP");
$transform->PutName("Type", "SigRef");
$transformParams = $transform->PutDict("TransformParams");
$transformParams->PutNumber("P", 1);
// Set permissions as necessary.
$transformParams->PutName("Type", "TransformParams");
$transformParams->PutName("V", "1.2");
// 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 certifying 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;
}
