I have some folders with PDF Files.
I'd like to distribute and also upgrade time to time these folders and files.
This is a kind of confidencial information.
Do you know if it's possibe to have a expiration date for the files?
I mean that during 3 month I keep the people update but after that, all the person need to receive a password in order to read any files and so on..
PS: even if you have an ideia with another way(program) in order to have my goal, please send me your help.