In Calibre, click on Preferences, scroll down and click on Plugins in the Advanced section, Click on the “Load plugin from file” button on the bottom right of the Plugins screen. While I have yet to try the latest version of DeDRM with that, the setting I had for that seemed to be still there too, so I’m assuming that will continue to work as before.

I occasionally get Adobe Digital Editions ePubs when Kindle format isn’t available. Removing and reloading the book in question showed the DeDRM Pre-Release seemed to do the trick for this book anyway. I downloaded it and installed the new plugin and it retrieved all my old settings which were apperently still there from the previous version of the plugin. I checked with Aprentice Alf’s Blog and sure enough they have a DeDRM Pre-Release. Apparently the app now uses the Python 3 language for it’s plugins…

I only just realized the latest update to the wonderful and long-running and continuously improved Calibre E-book Manager application removed my old DeDRM Plugin when I went to add one of my new ebooks to my Calibre library and discovered the DRM was still attached.

How to use calibre dedrm plugin