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Old 06-27-2014, 08:14 PM   #30
KevinH
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Hi,

Not quite ... page-breaks are just typically used to force text to start on a new page which is unreliable at best in a reflowable document.

Both epub and mobi/azw3 with APNX have the capability to encode information as to the start of each page in a specific hardcopy edition.

In epub, you use anchors/id= attributes to indicate the start of that page (not a pagebreak). Then in either a pagelist in the ncx or a separate page-map.xml file included in the epub, each of these anchors points is associated with its true page name (ie number or Roman numeral or ...). These are real page numbers with multiple schemes just as in the hardcopy version.

If an epub like that is passed into kindlegen, kindlegen will add a PAGE section to the mobi. This PAGE section becomes the APNX file when that book is delivered from Amazon. With the proper APNX file, a Mobi can show you on which page of the hardcopy book you are currently reading.

Calibre, does not yet understand these PAGE sections and the APNX file created by Calibre does not know or use multiple naming schemes such as Roman numerals and things like that. And many times these page start points are just chosen arbitrarily by Calibre.

So the most recent version of KindleUnpack (v072f) now understands these PAGE sections and will create a real APNX file for that mobi, and upon unpacking, will generate the proper page-map.xml entries.

I hope this is clearer. If not, just ask.

KevinH


Quote:
Originally Posted by Sabardeyn View Post
Kevin H.,
Not sure I understood the gist of this conversational thread.

Are you saying Amazon is now including the equivalent of a "page break" within the ebook text so that both digital and paper versions of a book have the exact same page content and numbering? Thus simplifying syncing citations between the two different media forms?

If the answer is yes, I imagine it's a fairly important step. It immediately opens ebooks up to more technical usage - like magazine articles, technical journals and textbooks. Where exactly locating and citing a source is mandatory.

Last edited by KevinH; 06-27-2014 at 09:15 PM.
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