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Old 10-06-2023, 02:21 AM   #7
kovidgoyal
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Ah you mean improving contrast for only images, this is a destructive operation, Polish books only has operations that do not change the books visual appearance, as such this is not suitable for Polish books.

But the simplest way to do this for you would be to use the unpack book tool and then use any batch image processing tool on all the image files in the book made available via the unpack book tool
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