Whilst permissions can be set on a PDF they are not needing to be used by viewers or other editors so usually they are preserved but not used.

I take this page and save with printing and copy denied. I then use a signing service that uses adobe methods so most users would thing that the encrypted file is "secured" but the reader can print and copy the text whilst showing those restrictions in its info.

Copied text

I'd like to digitally sign an encrypted PDF file. The original PDF is protected by password that you can't modify it or copy texts from it without providing the owner's password. However, I found I can modify it and copy texts from it with ONLY user's password after stamping a digital signature! So, how do I correct the code to preserve permissions when signing the PDF? The code I used is showing below, where is a method to encrypt PDF files

Printing in action

Copy the signature (which is an image)

However none of those are possible in the Adobe application.