epub to azw3 looses h3 level in toc

BKh · 09-22-2018, 12:10 PM

I have a well formed epub that has three heading levels (h1, h2, h3). The epub contains a logical table of contents in a toc.ncx file including all three levels. When I convert the file to azw3 with all the settings in default, the logical toc when viewed on the kindle only shows headings h1 and h2. When viewing the azw3 using the calibre viewer, all three headings are visible in the logical toc. (meaning I can click on the first h1 level and it shows all h2 levels under it. Then I can click on an h2 level and it shows all the h3 levels under it)

My question is, does anyone know if this is just a hard limitation on the Kindle device(i.e. only showing 2 levels in the logical toc), or if I am doing something wrong when I convert it.

Interestingly, the Kindle does recognize the h3 levels as chapters when calculating amount of time left to read the chapter and also in the "swipe up" navigation.

Please see attached screen shots.

As always, thanks to everyone who works on this project, and apoligies in advance it this has been covered somewhere else.

kovidgoyal · 09-22-2018, 01:15 PM

Yeah IIRC the kindle firmware supports a max of two levels in the toc

BKh · 09-24-2018, 09:18 PM

Thanks!

Anyone know if any of the newer kindle formats support deeper levels? It's strange because the kindle previewer from Amazon shows all three levels.

theducks · 09-24-2018, 09:39 PM

Quote:

Originally Posted by BKh

Thanks!

Anyone know if any of the newer kindle formats support deeper levels? It's strange because the kindle previewer from Amazon shows all three levels.

Not that unusual

I have formatted dropcaps.
They look good in Calibre, Good in the previewer, and they sometimes ignore the embedded font, fail to use italic on my K4 NT

09-22-2018, 12:10 PM	#1
BKh Zealot Posts: 107 Karma: 1000 Join Date: Mar 2011 Device: Kindle	epub to azw3 looses h3 level in toc I have a well formed epub that has three heading levels (h1, h2, h3). The epub contains a logical table of contents in a toc.ncx file including all three levels. When I convert the file to azw3 with all the settings in default, the logical toc when viewed on the kindle only shows headings h1 and h2. When viewing the azw3 using the calibre viewer, all three headings are visible in the logical toc. (meaning I can click on the first h1 level and it shows all h2 levels under it. Then I can click on an h2 level and it shows all the h3 levels under it) *My question is, does anyone know if this is just a hard limitation on the Kindle device(i.e. only showing 2 levels in the logical toc), or if I am doing something wrong when I convert it.* Interestingly, the Kindle does recognize the h3 levels as chapters when calculating amount of time left to read the chapter and also in the "swipe up" navigation. Please see attached screen shots. As always, thanks to everyone who works on this project, and apoligies in advance it this has been covered somewhere else. Attached Thumbnails

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09-22-2018, 01:15 PM	#2
kovidgoyal creator of calibre Posts: 43,858 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Yeah IIRC the kindle firmware supports a max of two levels in the toc

09-24-2018, 09:18 PM	#3
BKh Zealot Posts: 107 Karma: 1000 Join Date: Mar 2011 Device: Kindle	Thanks! Anyone know if any of the newer kindle formats support deeper levels? It's strange because the kindle previewer from Amazon shows all three levels.