Originally Posted by Guido Henkel
When preparing an ePub book for distribution, epubcheck throws an error message saying
Bad value for attribute "preserveAspectRatio"
This seems to have been introduced with Calibre 7 and its ability to scale cover images. Does anyone know I can get around this problem?
Thanks for any suggestions,
This is a guess, go to Conversions
- EPUB Output
- Preserve cover aspect ratio
and either check it or uncheck it (the opposite of what you had it) and convert the file again.