How to Convert Kindle KFX Books to PDF with Calibre?
Latest update on March 2026: To deal with KFX to PDF conversion with Calibre, you should update the dedrm plugin to version 10.0.18 and use the KFXArchiver283.exe.
• Transform Kindle KFX-ZIP into Universal EP...
First, we should install the dedrm plugin and kfx input plugin.
Step 1. Step1. Install DeDRM plugin to Calibre.
http://download.epubor.com/DeDRM_plug...
Step 2. Add KFX Input plugin to calibre.
http://download.epubor.com/kfx-input.zip
Step3. Restart Calibre, add books, convert books, choose the output format, OK.
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The method is different for converting KFX on MAC Catalina.
• Remove DRM from Kindle AZW on Mac (Catalin...