Quote:
Originally Posted by PKTC
I want to make my books available through Ingram Spark. They require EPUB 3 (not 3 enhanced). I converted a trial book to EPUB in Calibre (latest version) and tested it with the validator specified by Ingram Spark. The list of errors was enormous. Can anyone help me with this, please?
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Download
Sigil and install the
ePub3 output plugin. If the original ePub2 book passed
ePubCheck so should the converted version.