It’s because the first few generations of DRM were extremely poorly implemented. My og kindle keyboard still works and will ignore the DRM (that would be locking me out of, for example, a library book after its due date) if you just change the file extension to one of the DRM free file types. It will also then let me distribute that ebook to others without restriction.
It’s because the first few generations of DRM were extremely poorly implemented. My og kindle keyboard still works and will ignore the DRM (that would be locking me out of, for example, a library book after its due date) if you just change the file extension to one of the DRM free file types. It will also then let me distribute that ebook to others without restriction.
I don’t think that will work with the .kfx file type. At least it didn’t for me.
There are some plug-ins for Calibre that might be able to help you.