Thread: Calibre won't side load a zip containing images of different formats to a Kobo
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Old 03-28-2019, 03:03 AM   #10
davidfor
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Quote:
Originally Posted by ceridwen View Post
Changing the extensions of mixed-image zip files does work.

It's definitely not obvious to me, because fundamentally these are all the same type of file. Making the behavior depend on the extension doesn't make sense to me, but whatever. It's not something I would do in my day job, but obviously other people have different standards.
There has to be something about the file that tells you or a program what to do with it. The most common method is the file extension. "zip" means one thing. "cbz" means another. And the Kobo software, just like nearly everything else out there, does it this way.

And if changing the extension didn't work, I'd need to see the file to try and see why. I don't remember if I have tested a cbz with different image formats in it.
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