Signatures from other documents show up as "Invalid" when trying to combine documents into a package that I will then send for final approval and signatures in Adobe Sign. Please make a way to accept the digital signatures as is...
Example - a backup letter or document that was created from a word processing program (Word or Google Docs or some other program) includes a signature on it. That is then combined with other backup/files from the vendor and submitted to us as a PDF for processing a request. When I try to take those documents and include our own internal forms to send for approval. Acrobat will not allow it, saying that the signature on the back up is invalid. To get around this, I need to take print (Print to PDF) that document to remove the signature validation information, resave it, and then add my additional forms.

Doing this extra action adds several steps to what is otherwise a fairly routine process.
Please provide a way to accept signatures as they are in a document. It does not accept my selection when I try to "validate all signatures"

As a result, If I don't print to PDF, it causes an issue when I send it out for approval signatures via Adobe Sign.