Password protection on Adobe Sign when I didn't set a password
I am the author of an Adobe Sign document. Now that the document has been fully signed, I am trying to combine it with an instructional guide (it was a test document) for users at my agency, but it is asking me for a password. I did not set password for the document. I have tried using my Adobe account password, but that isn't working. Why is Adobe arbitrarily requiring a password that I (as the document creator) didn't set? How do I even find out what the password even is?