Quote:
Originally Posted by FelixKrull
In the EPUB, I see a lot of PNG files (in the built-in editor it says “1592@1.4 GB” under 'pictures'), but after conversion they appear to be massively inflated in size.
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Rather than looking at pictures in general, I'd look at one picture in the unzipped epub, and the same picture in the unpacked AZW3, and then you'll be able to tell what kind of conversion is or isn't happening.
zip shouldn't be able to compress a PNG very much. But I suppose if the original PNGs were saved uncompressed, the EPUB might be able to compress them more than AZW3.