I am having an issue where I am looking to apply GlobalSign AATL approved PDF signing certificate to a document that has already been signed via DocuSign. After applying the GlobalSign certificate, the PDF will generate an error on the original DocuSign certificate with the following error:
Error during signature verification
Unexpected byte range values defining scope of signed data.
Details: The signature byte range is invalid
Keep in mind that I do not have any errors with the subsequent GlobalSign AATL certificates that I have applied (see screenshots).
I am running Adobe Acrobat Pro DC version 2022.001.20142
This previously worked for me about 2 years ago but I don't know what has changed since then. I also tried using different signing formats to see if it would make a difference, PKCS#7 and CAdES equivalent but I still get the "The signature byte range is invalid" certificate error whenever attempting to sign an already previously signed DocuSign PDF document.
How exactly do you attempt to apply GlobalSign AATL approved PDF signing certificate to a document that has already been signed via DocuSign? Are you using "Digitally Sign" of the Certificates tool in Adobe Acrobat?
Also can you share (for analysis) an example PDF already signed with DocuSign before and after applying the GlobalSign signature?