I'd like to "secure" a PDF document on some future date (specified by me). By "secure" I mean either of the following:
- the document becomes encrypted with a password (and cannot be open without one)
- the document content is self-destructed / digitally shredded
I have Acrobat Pro, which allows me to set a document password, but not on a specified future date. I'm wondering if there's a way to allow such protection to be effective after a certain delay.
Any help would be appreciated!