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Old 04-06-2013, 08:55 PM   #8
DNSB
Bibliophagist
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Posts: 46,445
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by david8866 View Post
This Chinese site is helpful. Just ask PDF to epub conversion. Epub is epub, no matter which ereader, right?
http://www.hi-pda.com/forum/forumdisplay.php?fid=59
Well, yes and no. Some ePubs are more equal than others (with apologies to George Orwell). I've spent hours editing ePubs that were not even within spitting distance of the ePub standard. And yes, you will find epubs that work happily on the Kobo that do not work on a Nook or Sony or iDevice and vice versa.

Then we get into the proprietary extensions to the ePub standard -- try running the stylesheet through the W3C validator (Sigil offers this from the Tools menu or check on the web http://jigsaw.w3.org/css-validator/validator. It will warn you about vendor extensions and remove stylesheet items that are invalid before displaying your stylesheet. I had one book I purchased which had about 60% of the stylesheet items removed as being invalid. Oddly enough after cleaning up the stylesheet and correcting it's errors, the ebook displayed without issues on my Kobo, iPad and Nexus 7.

Regards,
David
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