[shadowprofile77]

Calibre. Convert those books to DRM-free formats asap and you're good to go. They become completely yours. I do it by default for all my Amazon kindle format purchases. It's "forbidden" but if I paid near physical book retail pricing for it, as far as i'm concerned, that copy of digital content deserves to be mine.

[anticodon]

I was unable to do this for any recent purchase. Calibre could strip DRM only from very old books, like 7-10 years old.

[shadowprofile77]

I had this same problem and what worked for me was to download an old version of Kindle for PC, regardless of the age of the books. I think version 1.17 works. Have copies download to it and then try the Calibre conversion again.

[wtmt]

This is why pirating is alive and popular, because it makes people's lives convenient, while the real sellers do many things to make people's lives difficult. You as a buyer are expected to bend and give in to their way of usage and their restrictions.