If the file is being edited, the signature must be invalidated or removed. There is no possibility of keeping a valid signature over editing, or signatures would be worthless. If any editing is to be done, do it BEFORE signing.
Any change to a PDF is editing, even if it looks the same.
Thank you for the reply, However, this is not a document that is being "edited" though at first, this was my thought as well. The only thing which I could see being the issue would be some setting within acrobat possibly? The thing which stumps me is that this issue is not happening all the time, very sporadic. There is a difference in the versions which the documents were sercured in within docusign, but the security is kept through the process on one, and ditched on the other. Do you have any other ideas at all?
If the files are "being made word searchable" this is editing. Very major editing. Of course I do not know what your software does. Perhaps it only does OCR on files without text. Anyway, you can check the modification date in File > Properties to see if the file has changed.
Thanks for the quick response MVP, let me check on the specifics and get right back to you on this in just a little while.