|
Just clarify the issue:
The EPUB standard has no support for image based covers. Instead EPUB software is supposed to render the first "screefull" of the epub and use that as a cover.
However, calibre for years and now itunes/ibooks use the following convention:
If in the <metadata> section of the OPF file there is a line that looks like
<meta name='cover" content="someid"/>
where someid is the id of an image file in the <manifest> of the OPF, it will be used as the cover.
When you use calibre to create an EPUB is adds this line automatically (assuming the EPUB has an image based cover).
|