I cooperate as a sysadmin with a publishing house. They publish standard books and ebooks. Ebooks are watermarked. Now they want to add a library service (lending ebooks for a short time period)
They asked me to investigate the possibility of DRM-ing mobi files exactly the way Amazon does it (to their proprietary azw format). I know there's a way to remove amazon DRM (I checked it and it works great), so my question is whether it is possible to "protect" mobi files that way (without Amazon's participation).
Or maybe you know if Amazon has an extra API service for protecting ebooks (only protecting, without selling)?
I know perfectly well what you think of DRM in general :), I'm asking because I promised to research the topic .
thx for any hints