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Old 10-28-2019, 08:55 PM   #3
Gregg Bell
Gregg Bell
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Posts: 2,266
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Join Date: Jan 2013
Location: Itasca, Illinois
Device: Kindle Touch 7, Sony PRS300, Fire HD8 Tablet
Quote:
Originally Posted by jhowell View Post
Version 2.9 of kindlegen has been the latest one for many years and that is what is included in the Kindle Previewer.

A Master MOBI produced by kindlegen should be about three times the size of the source file since it contains the original source along with copies of the book in MOBI7 and KF8 formats.

It is very odd that your Linux kindlegen produces such a small file.
Thanks jhowell. I must've been looking at the epub file size (it was next to the mobi) becasue I just ran at test with that file and one other.

File one epub size: 6.4 MB
Kindlegen mobi: 8.1 MB
KP mobi: 8.6
KDP mobi (the mobi I downloaded from Kdp to test it): 8.6

File two epub size: 1.0 (this is the one I originally posted about)
Kindlegen mobi: 2.5MB (not 1.0)
KP mobi: 2.7
KDP mobi: 2.7

So KP does produce a slightly larger mobi than Kindlegen. I checked all my old ebooks and they're totally functional. I'm still a little curious about the slight file size difference if you want to venture a guess, and I assume it would be safest to go the KP route from now. Would you agree?
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