I Would like to know if its possible to add a watermark or image or field to a digitally signed pdf without invalidating the signature. I have seen other libraries achieving this using incremental update in pdf with signature panel displaying the extra fields placed to the pdf document after the signature.
Thank you
Any change to the signed PDF document will revoke its validity. However, we will still investigate the feasibility of this scenario. Can you please share your sample PDF with us along with an expected output? We will log an investigation ticket and share the ID with you.
Hello again,
If I add a text annotation to a digitally signed pdf will it still revoke validity of the signature.
We need to properly investigate whether adding annotation revokes the signatures or not. Can you please share a sample PDF with us so that we can test the scenario in our environment and address it accordingly.