Adobe Acrobat Pro DC will not allow second signature
I've been a long-time user of Adobe Acrobat Pro products for over twenty years, and during that time I have never had trouble digitally signing documents until now. In the past month or so (Sept-Oct 2020), I've noticed that if a colleage sends me a PDF document to sign after already having signed it him/herself, I cannot add my signature field to it. The document is locked for any further editing, including adding form fields such as digital signatures. The Fill & Sign features also does not work because the first author of the document did not add a second signature field for me to sign.
The only workarounds I've found that work are: 1) Ask the person to go back to the original unsigned document, add two signature fields, sign one, and send to me to sign the other; and 2) Just send me the original unsigned document, I add a signature field for my signature, and send to the person to then add the second signature. While these do skirt around the problem, they do not solve it.
Why can I no longer add a second signature field to a document that already has one? Did the default behvaior change to always lock documents now upon signing? I've asked my colleages to check this, and they have confirmed that from their end, the properties show the document is not locked. However, when I check on my end, it says the document is locked. Note that I am running Adobe Acrobat Pro DC Continuous 2020.012.20048 for Mac. Most of my colleages are running the same on Windows, but I've now had the same issue with a person using the Mac version sending me a signed PDF. I feel I need to revert to a prior release of the software before this potential bug was introduced. Please help. Thanks!
