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For calibre 4.23, you must use the 6.8.1 DeDRM plugin, but the included Obok 7.1.0 plugin should work with calibre 4.2.3. It includes the DeDRM and Obok plugins, versions 7.1.0.
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It also looks like DeDRM hasn't been updated since about the time Calibre 5 came out. In the Github page for the DeDRM project, the file config.py is trying to load Qt 5. On the Calibre change log it mentions that Calibre 6 now uses Qt 6, and Qt 5 plugins may not work. Downgrade Calibre 5.x to Older Version 4.xAs a stab in the gloom, I think it has to do with the Qt library. Step 3 Add the DeDRM_plugin.zip to Calibre 5.x. Unzip the file, and you will get a DeDRM_plugin.zip file. Step 2 Download the DeDRM_tools_7.1.0.zip to your computer. Step 1 Install Calibre (5.0 or higher version) to the computer first. Das DeDRM-Plugin verarbeitet Bücher die von Kindle, Adobe Digital Editions, sowie manche historischen Formate heruntergeladen. Das DeDRM-Tool beinhaltet zwei Plugins: DeDRM and Obok. Dies wird voraussichtlich mit DeDRM 7.0.0 behoben. Das DeDRM-Plugin funktioniert nicht mit Calibre 5.x.
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Das DeDRM-Tool funktioniert nur mit Calibre Version 4.x. As a stab in the gloom, I think it has to do with the Qt library.
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