@rmc Interesting, I have been doing research on Kindle publication, and most information online suggests that they sell only kindle file format, which is DRMed. Is there a way for publishers to sell and distribute PDFs and ePubs via Amazon?
No, you have to sell .mobi files. However .mobi files don't have to be DRMed. You can have non-DRMed .mobi files. When you sign up to the KDP (Kindle Direct Publishing), and are setting up a book to be published, there's a checkbox "Enable DRM". just don't check that.
Lots of self published authors use creative commons work as a cover art, so it even can be creative commons licenced.
Many books are sold on the Kindle Shop without DRM. Some large publishers (e.g. science fiction publisher Tor) is selling books on the Kindle Shop without DRM.
