I encrypted a document using my self-signed Digital ID (pfx) to prevent printing or copying from it. When I open the PDF, it asks me for my Digital ID password and the PDF says "This document is encrypting using your certificate" in the security tab. Unfortunately, when I tried to remove the security to make some changes, I get an error message sying "You are not authorized to change the security settings of this document".
If I cannot change the security on my own documents, who can? Did I miss a crucial step in the process somewhere?
Unfortunately I do not have a copy of this specific document (that was the idea behind protecting it in the first place) and hope someone here can help me solve the problem.
I spent a very frustrating hour on chat with Adobe, to learn that there is no way to remove the "security"
I told them they should change the name or provide some sort of warning, as this more or less destroys the file. Sorry to anyone else who makes the mistake of trying to use this security feature.
What permissions do you use for your own certificate?
It is not always possible to remove security, signatures or reader enabling. So it is vital to keep (systematically) the original, un-signed/un-protected/etc file for each file you protect (etc.)
In general therefore you wouldn't use these to protect your own files on your own disk; for that you should look at broader protection mechanisms.