Thread: No glyph available error and cannot compress png images
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Old 01-06-2017, 11:28 AM   #1
crouton
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No glyph available error and cannot compress png images
Sorry for combining two problems but figured this was better than 2 threads.

Issue 1: When editing some books and using "subset all fonts" I get an error "no glyph available" but the error diagnostic info does not tell me which font does not have a glyph available. Any way to find this out?

Issue 2: When editing any book with png files for images and choosing the compress images losslessly option there are 10-12 processes open for OptiPNG and they all get stuck. The only way to get through this edit process is to randomly force quit some of the optipng processes. The processes all run at 90-100% of my CPU. Books which have jpg images do not have this problem. I have quite a few books that are full of images (cookbooks) which are presented in PNG, sometimes there are over 200 png images sometimes less than 50. If I force quit the processes I have to go through randomly and find the files that were not compressed and then resize manually. Any way to fix this?

Using OS X El Capitan and latest version of Calibre (no updates available)

Thank you
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