I don't want anyone to be able to view a PDF I am creating UNLESS they have Acrobat Pro 8 or newer installed. If they have Acrobat Reader but not Acrobat Pro then I do not want them to be able to view the PDF. And they must have version 8 or newer.
Can this be done, and if so, how?
If you were asking for v7 or v9 then you could apply security using that version's keying, which would prevent it from opening in anything earlier - but there's no encryption difference between v7 and v8 and no way to differentiate Reader.