2 Replies Latest reply on Sep 29, 2014 10:54 PM by Steven.Madwin

    add links after signing


      Is there a way to add links to other documents in a PDF that has already been signed with a digital signature?

        • 1. Re: add links after signing
          Test Screen Name Most Valuable Participant

          All changes will invalidate the signature.

          • 2. Re: add links after signing
            Steven.Madwin Adobe Employee



            To expand on what TSN added above, when you sign the document you are really signing all of the bytes that make up the core document. A link is part of that core, and if you were to add a link into a file that has already been signed then the signed bytes would no longer match the actual bytes, which is what causes a signature to become invalid. Because of this, once the file is signed Acrobat locks you out of editing the core components of the file in order to prevent the signature from becoming invalid.