Quote:
Originally Posted by PKTC
OK, I've downloaded and installed sigil and the EPUB3 plugin per the recommendations above. It produced an EPUB3 that failed EpubCheck. I went back to the source, an EPUB file exported from Calibre. It too produced an EPUB that failed EpubCheck. EpubCheck reports that the Epub file from Calibre is v. 2.0.1. Now where to go. Half our catalogue (we are a publisher) is in Calibre and we would like an easy way to go to Epub3 rather than have to do the whole thing over again.
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First fix the ePUB2 before converting to ePUB3. You can't expect a faulty ePUB2 convert to a working ePUB3... If you are a publisher, ensure you a have someone with more than decent knowledge on XHTML/CSS and the ePUB specifications. Otherwise fixing and supporting ePUB2 can be quite a challenge.