Okular is doing the right thing

And then there's the hard way: actually distribute PDF files that have such annoying DRM limitations but no licensing issues whatsoever. This should be done in order to encourge users to use PDF viewers that that ignore those limitations (e.g.: in the case of KPDF/Okular: disable that configuration item, for win32 users: use e.g. Sumatra PDF (untested)).

I wonder if somebody actually did something of that sort...