Hi!
AFAIK DRM locks your purchased e-book to your device (described for example here:
https://mybookcave.com/what-is-ebook...it-affect-you/) and anything else is called DRM-free. But I am currently corresponding with a publisher who claims their e-books are DRM-protected and explains it like this: "the user id is integrated into the book, the user can copy the e-book from device to device". I am puzzled. To me this sounds more like DRM-free. Any opinions, pls?
Thx in advance!

PH