What I have to do to protect against: copying and / or the ability to decide how many copies; printing or the ability to set the number of copies, modification, screenshots of copies; screen-printing. And also looking for limiting the capability of an expiry date or the duration of use from a start date.
I have evaluated Acrobat DC PRO for a month, where I couldn’t find this. I'm interested in the course protection documents only. My main goal is to control the disclosure of these courses in terms of duration, dates and also be able to limit their number in circulation.