The is a third-party extension for the calibre e-book management software designed to remove Digital Rights Management (DRM) from purchased e-books. This allows users to read their owned content on different devices or apps. Core Functionality
: Removes protection from Kindle eBooks, Adobe Digital Editions (ADE) ePubs, Barnes & Noble ePubs, and older Mobipocket/eReader formats. DeDRM_plugin.zip
: DRM removal only happens at the moment a book is imported into calibre. It will not work on books already in your library unless you remove and re-import them. The is a third-party extension for the calibre
ElleKayEm commented. ... After you unzip DeDRM_tools_6. 7.0. zip, rename the unzipped folder something like "unzipped DeDRM tools" Adobe Digital Editions (ADE) ePubs