Quote:
Originally Posted by jhowell
Progress has been made on KFX DRM removal. A DRM removal algorithm has been developed, but it has not yet been integrated onto the commonly used DRM tools. I assume this is due to lack of interest since KFX is easily avoided at present.
You can read more in the KFX Format thread starting here. |
It seems the DRM problem has been solved. DRM can now be removed from a kfx file, which leaves an unencrypted kfx file. There is no current software to convert this unencrypted kfx file to other formats nor to read other than on suitable Amazon software or devices. The most attractive approach to this would seem to be through a kfx calibre input plugin. Kovid has indicated, very sensibly, that he has no current interest in writing one, because kfx is a terrible input format and kf8's, which are much better, are still readily available. If Amazon does start making a lot of ebooks available as kfx only, he estimates that it would be the work of one to two weeks to write such a kfx input plugin.
So for kfx to be fully supported in Calibre work needs to be done by the Apprentices on integrating the new drm removal software into the tools and specifically the plugin for Calibre, and by Kovid or other Calibre Developers on a kfx input plugin. Progress on either is not a priority whilst kf8 files are still readily available. If you want to read further look at the kfx thread linked to by jhowell earlier which in turn links to discussion on Apprentice Harper's blog.