Quote:
Originally Posted by Quoth
An ereader is a personal device. Most retail ebooks (other than from a few smaller retailers which don't have the big six publishers) have DRM. The DRM is either Amazon's or Adobe, though a 3rd system is some countries from Readium.
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You might want to add that books synced from Kobo use their own proprietary DRM though the OBOK plugin for calibre supports removal. By my last count, 23 out of 31 ebooks purchased from Kobo came without encryption. Unless the publisher/author requests encryption, the book is served without encryption.