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Originally Posted by hw360
Great software. NR!
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Thanks, it was well written by Ashish Kulkarni and a pleasure to maintain!
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The 'Optimize PNG' parameter is supposed to shrink file size, right?
I tried to convert a pdf file, one is on, one is off. The final .prc files are same size, although the temp .png file sizes are different.
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Yes, the .pngs get processed differently, but then, I think, the html2mobi code (from MobiPerl) converts them to .jpg for inclusion in the .prc. So the 'optimize png' refers to the temporay .png files created. However, if I create a REB1200 .imp ebook from those .png (my ebook reader uses this format), then the .pngs are stored "as is" and then you would notice a betterment in the resulting ebook filesize.
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Is it because the final .prc file re-encode the png files to jpg?
Is there a software can inspect .prc file?
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I believe it is. Check the MobiPerl suite of programs, namely mobi2html, or calibre. Even my Mobi2IMP program will explode a .prc into .html and images (just don't fix anything when using Mobi2IMP).