André KleinJun 14
Valid EPUB. Passes epubcheck. Works everywhere. Kobo says: corrupted.
One line of CSS4 is all it takes. Adobe's renderer hasn't left 2013. Post-mortem: https://andreklein.net/your-epub-is-fine-kobo-disagrees-blame-adobe/ #epub #ebooks #selfpublishing #css
Your EPUB Is Fine. Kobo Disagrees. Blame Adobe

Adobe isn’t exactly a beloved company these days. People begrudgingly use their stuff, because the Creative Suite is an industry standard (read: monopoly) or there are simply no worthwhile alternatives,...

André Klein Dot Net
Show threadSascha Raubal – AutorJun 15
@andreklein
Just one question:
The "epubcheck", is it the same as you can start run java?
Show threadAndré KleinJun 15
@Sascha_Raubal yup. the good old trusty https://www.w3.org/publishing/epubcheck/
EPUBCheck

The website of the official conformance checker for EPUB publications

EPUBCheck
Show threadSascha Raubal – AutorJun 15
@andreklein
So this is the "gold standard"? Great! Thank you!
Show threadAndré Klein
@Sascha_Raubal pretty much, yeah. There's also a handy plugin for Sigil: https://github.com/jun-hyung-joon/EpubChecker-sigil - although these days I prefer the command line tool for quick checks.
GitHub - jun-hyung-joon/EpubChecker-sigil: A Sigil plugin that validates EPUB files using epubcheck

A Sigil plugin that validates EPUB files using epubcheck - jun-hyung-joon/EpubChecker-sigil

GitHub
Jun 15 at 8:13amWeb
Show threadSascha Raubal – AutorJun 15
@andreklein
I also prefer the command line tool. I created a shell alias, so it's quite simple.
But I use Sigil for epub creation, with the PageEdit plugin for the WYSIWYG part.