That's pretty much what I've found. The security for PDF is basically none for the home/office version (including acrobat pro version). To get a secure PDF file that cannot be shared or dismantled you'll need the commercial version, which runs into a few thousand (US) dollars. It's possible to secure PDF, but expensive.
Other than for educational purposes MAC controls less than 5% of the market. That's probably why not many programmers chase that market.
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