Quote:
Originally Posted by NIRC
I have been writing to Kindle (and asking on Forums) for at least 5 years about the problem with embedding fonts in mobi files for the Kindle Fire and later. I have only one proprietary font that needs to be embedded. It is not, and instead, nonsense shows up.
For about a 6-month period a little over a year ago, files uploaded on the Kindle web page actually accepted the font. I was surprised and immediately prepared the book for publication. Then it no longer did and now I cannot update it or add additional volumes requiring the same proprietary font.
I have tried The latest Kindle Previewers as they come out as well as Caliber, but nothing seems to work. The fonts embed fine in epub format and the file I made in 2019 that was accepted displays perfectly on my Kindle Fire. So I know it is not impossible.
Also, no matter whom I talk to at KDP by chat or phone, no one has any answer, and most of them try to assure me that there is no problem. I even sent screen shots of the same page when it did work and when it did not. No answer.
Alas, there is no way to get into a mobi file as there is with epub files, to see what has gone wrong.
I don't see how difficult this can be to fix. At least it would be nice to receive some formal recognition of the problem...
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Not all fonts work, embedded in Kindle, but what font, specifically, are you trying to embed? And how are you testing it, exactly?
There's no reason to really "get into" a mobi file for troubleshooting, but you can unpack them, using the Calibre unpack plugin, if needed. It emulates what's occurred, but it's useful for tracking wholly unexpected results.
If you can provide a bit more detail, my firm has been embedding fonts since it was first enabled, so it's something with which we have a lot of familiarity.
Hitch