hello fellow coders: I need you to secure .pdf files so that they would open on only one registered [url removed, login to view] file should open with a registered name and [url removed, login to view] should validate the liscence by connecting to a server.i need to have a backend created on the server wherein i can manage the liscences. i need a similar service to ebook-security[dot]com . If not similar then atleast something that can protect the pdf's so that they may open on only one computer.
if this works on pdf's i will need it to apply to any exe's without changing its source code. thank you