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Old 12-05-2011, 02:50 AM   #1
jpcapili
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.mobi compression?
Hi! Can someone please enlighten me to what happened to my converted mobi file in this process?

I have a 20mb epub that I've convrted to mobi. The file size remained the same. But when I re-converted the mobi , the file size went down to 7mb. I've tried to reconvert some of the .mobi files I have in my database, and their file sizes also shrunk.

What exactly happened during this conversion? Any data lost during conversion?
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Old 12-05-2011, 05:28 PM   #2
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anyone know before I re-convert all my .mobi files and save hard disk space?
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Old 12-05-2011, 05:33 PM   #3
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Well, for one thing, the images probably got recompressed. Eventually you'll see compression artifacts.
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Old 12-05-2011, 09:44 PM   #4
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That will most likely be due to resizing of images.calibre resizes images based on whatever output profile you have selected.
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