epub --> azw3 links loss

[kerliza]

Calibre conversion of epub to azw3 loses the hyperlinks to endnotes from the text body when viewed in Kindlegen Previewer and Kindle reader for PC.

The hyperlinks work OK from the endnotes to the text position.

When I downloaded Softonic Epub to Kindle converter the links to endnotes from within text are just fine, although a bit ugly. However, I want to use Calibre editor and converter as a better program for editing and conversion controls as Softonic software has few features.

Editing the same file in Calibre's converted azw3 doesn't reveal what my problem is with loss of links from within text body for Kindle reader for PC. Calibre's viewer shows the links work just fine, but not so in the Kindle readers for PC.

Any help for me with this?

[kovidgoyal]

https://www.mobileread.com/forums/sho...d.php?t=186697

[kerliza]

Sorry, not enough info was given in first request to help me.

The file I'm working with converts to azw3 with links to endnotes loss when viewed from Kindle PC reader or Kindle previewer.

The file sample attached is a single chapter, no TOC, no cover. I also attached the conversion log file.

I will appreciate a solution so I can move forward towards creation of a kindle book version of the epub.

Thanks

[kovidgoyal]

You need to attach the epub not the azw3

[kerliza]

Here is the epub, thanks for clarification!

[kovidgoyal]

Looking at the markup, I'd guess it is caused by your putting the <sup> tags inside the <a> tags instead of outside them.

You have:

<a class="calibre5" href="part0000.html#end1" id="endref1"><sup class="calibre6">1</sup></a>

change that to
<sup class="calibre6"><a class="calibre5" href="part0000.html#end1" id="endref1">1</a></sup>

And you should be fine.

Presumably the Kindle software cannot handle the former.

[kerliza]

thanks so much for seeing this!

I'll give it a go.

[kovidgoyal]

You can also just remove the class="calibre6" from the <sup> tag which should have the same effect.

The thing I dont understand is why it works with a kindlegen produced azw3. Obviously kindlegen is doing something different, I cant figure out what that might be though.

[kovidgoyal]

Actually, I take that back, running your epub through kindlegen also results in non working links. The problem can be resolved with either of the two workarounds I suggested, swapping the tag order or removing the class attribute.

As best as I can determine, the underlying problem is that the epub uses custom CSS for the <sup> tag, which includes position:relative which the kindle does not support.

[kerliza]

The solution was provided by re-arranging the <sup> tags to enclose the <a href . . . >

Doing so did solve the problem with links with Kindle to PC 2 reader and Kindlegen Previewer.

It took awhile for me to complete the corrections but I hope a heads-up warns others with endnotes or other <sup> + <a> tags strings will be alerted to the solution with Kindle conversion loss of hyperlinks within text or external sites.