Thread: EPUB with images. Tweaking inside to make it lighter.
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Old 08-17-2012, 09:46 AM   #1
roger64
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EPUB with images. Tweaking inside to make it lighter.
The source odt file coming from outside has been converted with writer2xhtml: the end result is a nice but heavy EPUB file. 25 images. 2.8 megs.

Unzipping and looking the Images folder of the EPUB, I realized that using the mogrify -resize 50% command on the heaviest 10 images (which are not even fullscreen) I could save 1.2meg which would be enough.

This is very easy to do, either on the odt or on the EPUB. The first has a Pictures folder, the second an Images folder.

However, when I zip back the files, and I try to open the odt file or the EPUB file, it triggers a general error. Is there a way to do this cleanly, I mean in such a way that I could be able to open again the EPUB? (or the odt file)? Or is this behaviour forever forbidden?
Last edited by roger64; 08-17-2012 at 09:49 AM.
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