I'd like to set the following specific securities over my PDF document:
1. Password access
2. Editing (copy/paste) disabled.
I already know how to do these two in Acrobat.
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3. Limit the number of computers which can open the document. (i.e. I want to prevent the document holder from sending their copy of the PDF to someone else via email, external hard drive, etc. Once he/she opens the PDF on their laptop, it can't be opened again on any other cpu)
4. Expiration (i.e. I want to set a 5/10/15/ or 30-day expiration on the document. Once it's been opened, it will become inaccessible in 5/10/15/ or 30 days' time.....whichever I would specifiy)
Can someone help me with the last two items? Your help is much appreciated.
--Charles