The solution was right here on the Mac. It works, too. At the click of a button, no printing or copying allowed, no extra software necessary, all built into the OS.
At the click of which button? Do you own Acrobat Pro or something? (it doesn't come built into the OS)
It seems that this query was never answered. It would be nice to know what solution (built into Mac OS X) deals with the 'locking' problem.
