But it is highly processed and very proprietary to Amazon.įor archival of books I recommend KF8 (azw3) format. KFX format enables extra features and so I recommend it for the best reading experience on Kindle devices. Unless you did one of those things the book in KFX format will retain its original metadata. That only occurs when you use certain specific functions in calibre: "Embed metadata", "Save to disk" (with the "Update metadata in saved copies" option enabled), or "Send to device". In those steps I didn't see anything that would actually apply the metadata you changed in the calibre database to the KFX format copy of the book. I drag and drop the copy from Calibre onto the OasisĪfter, though, the book I've now manually added to the Oasis retains the original cover and information from the eBook purchase, despite having removed the copy from the Kindle. I make sure the original Kindle copy is deleted from my Oasisĥ. I edit the cover and the book description.Ĥ. After a few moments, the DRM appears to be stripped, and I'm left with a KFX file that I can edit the metadata of.ģ. I find its AZW in Finder and drag and drop it into Calibre.Ģ. Using the latest version of Kindle for Mac, I download a Kindle book. This will prevent it from syncing reading position, notes and highlights. You may need to remove the ASIN of the book in order to prevent the kindle from using the cover thumbnail (and possibly other information) from Amazon. How did you modify the book? Did you make sure that the original was not still on the device before copying the new one? Did you check both the cover thumbnail and the cover at the beginning of the book? I need to know what you did step by step. It is hard to speculate without more detail. When I looked at my Kindle, however, the cover art and the titles are what they were before, as if the DRM remained, or the metadata I changed in Calibre didn't carry over.
I then altered the titles and covers of said books, and put them onto my Kindle. As per normal, I put some books into Calibre and the KFX plugin appeared to strip them of their DRM. To give some context, this venture started because I bought a new Kindle Oasis. Thanks very much for your reply, and amazing work on your plugins - they've been very helpful. See "Viewing books in KFX format" in the KFX Input documentation for ways to do that. You can also view the book after import to verify that it is readable. That is the easiest way to tell if something went wrong. If DRM removal fails you will be left with a book in KFX-ZIP format instead of KFX format. In addition calibre can make various alterations, such as downsizing images and regenerating the table of contents. Because KFX is not based on HTML, irreversible changes occur during conversion. Converting from KFX to KFX actually converts from KFX to EPUB, runs that through the calibre conversion pipeline, and then converts back to KFX.
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