Open Source PDF editor to make files non-printable

Question

I need an open source solution to simply make any PDF unprintable. I know there's questions about editors, but I need this particular feature only and editing the content isn't a concern.

Answer 1

I tried it quickly with pdftk: http://www.accesspdf.com/pdftk/

Use something like:

pdftk my.pdf output noprinting.pdf owner_pw MYSTRONGPASSWORD allow

The allow parameter has no argument (defaults to none). It seems, that you have to set some owner password (otherwise, printing won't be really disabled).

See the documentation in my link for more options!