2 thoughts on “How to Convert Your Word Doc into a Mobi file Using Calibre”

  1. A good overview. Do keep in mind that Calibre exports are often NOT a good idea for uploading to KDP. Amazon has stated that they will not support uploads of mobi files from any source besides Kindlegen. That’s why the mobi export for programs like Scrivener and Jutoh actually uses Kindlegen (which you must install separately) to generate the file.

    The way it’s been explained to me is that the file Kindlegen creates is actually a wrapper with both mobi and epub files inside. That’s why the Kindlegen mobi files are so much bigger than the Calibre mobi files.

    So Calibre is good for conversion from one format to another – but not so hot for professional upload-ready production.

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