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Old 03-23-2026, 07:54 PM   #7
retiredbiker
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Posts: 477
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Join Date: May 2013
Location: Ontario, Canada
Device: Pop_Os!, Kobo Forma
I have occasionally used the Calibre image editing to resize...usually a gigantic cover that is already in the book when I get it. But this is rare and only because it is handy at times. Almost all my real image editing is "open with Gimp".

One image situation that is a bit of a pain is when a book has many (maybe hundreds) of large png images that just take up an atrocious amount of space for no good reason. These don't compress very well. Currently, I export them all to a work folder, convert them all to jpg with ImageMagick, re-import then, replace all the ".png" with ".jpg", and then compress them.

For this, the Calibre image compression tool is great.

I can't see all that lot becoming part of Sigil. Especially since while the images are exported to a work folder I may do other things to them. But that simple, quick image compression tool...that I would certainly use a lot. I have no idea how it works, but it's fast and handy.
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