We have a secured PDF that we created. It's password protected. I am trying to allow people to print a hard copy, but I don't want them to be able to choose 'Adobe PDF' or 'Microsoft Print to PDF' as the printer because that just circumvents the whole security process. How can I stop people from that? They can just "print" an unprotected version of the secured document. How about a way to allow physical printers only, say, printers with real device IDs or IP addresses? I don't know how the print dialog can distinguish between physical printers and "soft" printers, but it would seem there could easily be a way.