Kindle Touch 4th Generation does not render published font correctly

[kausar]

I am using Calibre to create an ebook in the Urdu language. The language is written from right to left. The whole book is in Unicode and uses UTF-8 encoding. If I open the book in TextEdit on Mac. Mac shows the book like this:



When using default Kindle fonts like Caecilia this is how it looks like



However, when I use the published font i.e. the TTF font I have embedded in the ebook. It doesn't join the characters the way it's supposed to for languages like Arabic/Urdu. It shows each letter individually and it looks like:



Am I missing something here or Kindle just can't use these embedded fonts correctly for non-latin languages?

[Doitsu]

Originally Posted by kausar

When using default Kindle fonts like Caecilia this is how it looks like [this].

That's the default Kindle Unicode fallback font, code2000.

Originally Posted by kausar

However, when I use the published font i.e. the TTF font I have embedded in the ebook.

That's a known limitation of the old MOBI/AZW3 format. You'll have to create a KFX file. If you have an older Kindle that doesn't support KFX files, you can jailbreak it, install the font hack and override code2000 with your favorite Urdu font.

[HarryT]

This does not appear to be related to Calibre. Moved, therefore, to the “Kindle formats” forum.

[kausar]

Originally Posted by Doitsu

That's the default Kindle Unicode fallback font, code2000.


That's a known limitation of the old MOBI/AZW3 format. You'll have to create a KFX file. If you have an older Kindle that doesn't support KFX files, you can jailbreak it, install the font hack and override code2000 with your favorite Urdu font.

Thanks for your help. Much appreciated. I converted the ebook to KFX and everything seems to be working fine now.