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Epub3 format

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11 comments

  • Erik Istrup Publishing

    I use InDesign to generate the epub file. Then Sigil to edit the file, like removing font obfuscation from the fonts which InDesign seems to add.

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  • Tinker Books

    I don't use rented software, ever. They cost too much in the long run. Why do you remove font obfuscation? it is a requirement of most font licences that if you use the font it must be obfuscated so it can't be copied.

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  • Erik Istrup Publishing

    It generates an error at the Ingram Spark initial validation.

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  • Tinker Books

    In checking out ebookit by the way they charge $100 for print on demand setup and guess what, yep they use lightning source. They do have other services which may be useful though. Their epub validator is free and they have a press release thing that is free but no info to speak of as to where it is released.

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  • B. Morris Allen

    Sigil generates EPUB3 just fine; I use it all the time. You do have to set Preferences | General settings to start with EPUB3 or use a plugin like EPUB3-itizer. I also use the EPUB3 tools on the Tools menu.

    The result works fine with IngramSpark - except for the "belongs to collection" property, which must be removed. I've contacted Ingram several times about this - including on this board - and they've consistently refused to say why.

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  • Tinker Books

    I have epub 2 books that pass the validator no problem. I put them into sigil every way possible and convert them to epub 3 and they won't validate. I tried it with several different books and the result is always the same. hundreds of errors. It wouldn't surprize me if I took a perfectly good epub three and opened it with sigil then saved it it would probably have a multitude of errors.

     

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  • Erik Istrup Publishing

    I use the Flightcrew plugin in Sigil to validate the file.

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  • B. Morris Allen

    @Tinker, have you tried the EPUB3-itizer plugin? You have to be careful, but it does work nicely for me.

    You could always try starting with an EPUB3 and re-composing the book from xhtml files.

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  • Tinker Books

    Never worked for me, always came up with epub 3 books with a long long lists of errors. And if I had epub 3 format to start with I wouldn't need to convert it to epbub 3 would I. take a perfectly good ebub 2 and open it as epub3 in sigil save and have a book full of errors. Open as epub 2 use epub3-itizer and always wound up with a book full of errors.

    Recomposing would be pretty tough for me as I haven't had five years training in xhtml xml coding.

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  • Tinker Books

    As far as font obfuscation goes if ingram won't accept an epub 3 that has it it greatly limits the use of embedded fonts that you pay a fee to use because the licence on pretty much all that I have looked at say you have to use obfuscation or you don't use the font.

     

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  • B. Morris Allen

    @ Tinker. What I meant is to export the html files from your EPUB 2, start Sigil with a blank EPUB3, and import the files to that. It might help get the spine/opf/etc structure right.

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