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Old 09-07-2020, 11:45 AM   #5
pdurrant
The Grand Mouse 高貴的老鼠
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Posts: 74,008
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Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Oasis
Quote:
Originally Posted by angharad09 View Post
For changing the cover image in an azw3 file, most of the advice I've seen online says (1) use Calibre; (2) change the image in the Edit Metadata window; then to make the image show up, either (3a) do an azw3 to azw3 conversion or (3b) use the Polish Books function.

For me, both 3a and 3b generated a file that was almost double in size.
So question 1 is, is that normal?

But if I used Save to Disk instead, it generated a normal-size file that showed the new cover and seemed to work fine.
So question 2 is, is there some reason (which I didn't see in my quick check) why this would be a bad idea?

Thanks.
I suspect you've got calibre set up to generate a combined MOBI+AZW3 when you convert to AZW3. Check the conversion preferences.
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