PDFs suddenly needing Password I don't have. No changes made on my part.
Sometime this year a change happened where all my PDFs can't be opened, due to needing a password. I didn't change anything. I have no idea what the password is. It's happening with both Preview and Adobe Reader.
1) Simply downloading a fillable PDF and emailing it without ever opening it brings the problem. The download site doesn't encrypt their PDFs, but the person receiving it is dealing with a password issue. If they download the PDF themselves, no problem.
2) I receive PDFs back when the other person downloaded themselves and can open it fine in Preview. Once I update it and save my changes, I can no longer access it without a password I didn't set nor have any idea of. If I duplicate the PDF, I'm not allowed to do that because of the password. I am totally stuck!
How do I get back to a world where I didn't deal with encryption and passwords on my PDFs? I can't find any global setting to undo this default security, which I don't need.
MacBook Pro 15″, macOS 13.5