Quote:
Originally Posted by JSWolf
No checker/diff will show you what's characters won't render. That depends on the font being used.
You can diff easily using the Calibre editor.
What Reader or software are you using to read your eBooks?
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I don't usually read books with mobile devices, but I use SumatraPDF app on my laptop.
since 3.4 release the rendering engine has changed and declaring the default font used has been disabled.
can you please explain how I should diff font removed epub from the original one with embedded fonts using calibre?