Thank you for your reply. Good point on DRM & security being not related. My thinking was permissions & security are one of the same.
The message really proves my point that my PDF documents's permissions are respected only within Adobe products. So anyone can access DRM-based document and bypass the permissions (just as the message states)! So I really need to consider other solutions for sentitive PDFs such policies and other legal matters.
No, they are not DRM based! This is, as I said, nothing to do with DRM.
Adobe's DRM solution is LiveCycle Policy Server. DRM protected files naturally only work with Adobe products.
Now, you might like to consider why your PDFs are sensitive to changes. Is it
- because people might modify stuff, which was still attributed to you/your company, with legal implications?
- because they might pass your work as their own?
- other reasons?
Particular solutions exist for some of these issues which are MUCH better than security.