Certificate Invalid After Signing

GroupDocs.Signature Product Family
1

Hi,

We’re signing pdf documents using a method similar to below:

using (Signature signature = new Signature(“sample.pdf”))
{
DigitalSignOptions options = new DigitalSignOptions(certificatePath)
{
Signature = signatures.FirstOrDefault(),
// optional: setup image file path
//ImageFilePath = “image.png”,
Left = 100,
Top = 100,
PageNumber = 1,
Password = “1234567890”
};
signature.Sign(“signed.pdf”, options);
}

but after signing and opening it in Acrobat Reader, I get this issue:

Annotation 2020-01-07 194845.jpg (13.1 KB)

Can you please advise? Thanks in advance.

1 Like
2

@taxreturned,

Please share following details so that we can investigate this:

  • API version (e.g 19.10, 19.11)
  • Sample PDF
  • Digital certificate