Quote:
Originally Posted by Tenome
Like I said, I already checked every page in Honeyview and found no corrupted images. It's fine, I used a different program to convert to PDF since Calibre couldn't do it. I'll file a bug report with libpng too, hopefully Calibre will be able to convert correctly in the future. Thanks for the help.
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I would suggest trying a search on libpng invalid chunk type. You will get multiple hits.
I ran into this a couple of years back while working on some mangas. While almost all the image programs on my PC did not complain about errors when opening the images, libpng was very unhappy with them. pngcheck was a useful tool to locate the errors. The errors were mostly at the end of the file past the image data but several were scattered in the metadata or ancillary chunks.