How to add a top bar "signed" to a .pdf document

Aspose.PDF Product Family
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Hi
Is it possible to sign a .pdf document via aspose in a way when a top bar “Signed and all signatures are valid” is shown? I expect it to look like this:
nice_signature_example.png (5.1 KB)

The only example I have found Working with Signature in PDF File|Aspose.PDF for .NET
explains how to add a signature rectangle on the page and in this case top bar is not shown

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Hi Tetiana,

Thanks for contacting support.

Aspose.Pdf for .NET supports the features to digitally sign the PDF documents. I have signed one of my sample PDFs with following code snippet and observed a top bar in the document, when opened in Adobe Reader.

string pbxFile = dataDir + "mykey2.pfx";
string inFile = dataDir + @"DigitallySign.pdf";
string outFile = dataDir + @"DigitallySign_out.pdf";
using (Document document = new Document(inFile))
{
 using (Facades.PdfFileSignature signature = new Facades.PdfFileSignature(document))
 {
  PKCS7 pkcs = new PKCS7(pbxFile, "{password}"); // Use PKCS7/PKCS7Detached objects
  DocMDPSignature docMdpSignature = new DocMDPSignature(pkcs, DocMDPAccessPermissions.FillingInForms);
  System.Drawing.Rectangle rect = new System.Drawing.Rectangle(100, 100, 200, 100);
  // Set signature appearance
  signature.SignatureAppearance = dataDir + @"aspose-logo.jpg";
  // Create any of the three signature types
  signature.Certify(1, "Signature Reason", "Contact", "Location", true, rect, docMdpSignature);
  // Save output PDF file
  signature.Save(outFile);
 }
}

Please check following screenshot of top bar which I have observed after signing the document.

Top_Bar.png (18.6 KB)

However, in reference to the image which you have shared, would you please add more details, like which type of signing PDF you require and please share a sample document so that we can check the scenario in our environment and address it accordingly.

Best Regards,
Asad Ali