MobileRead Forums - View Single Post - Conversion to MOBI -- No Bolding

jhowell · 01-08-2018, 05:10 PM

Technically the new font boldness slider is not part of Enhanced Typesetting. It works for KF8 (azw3) and for KFX formats, but not the old MOBI7 format.

It looks like you are doing the conversion from EPUB to AZW3 to EPUB to fix a character encoding issue. As an alternative you could use the "Encode HTML in UTF-8" option of the Modify ePub plugin for calibre instead.

The Kindle Previewer uses Amazon's kindlegen program to convert your EPUB to a Master MOBI file that contains both MOBI7 and KF8 formats. You kindle uses the KF8 part of the file, which enables the boldness slider. As an alternative you could use calibre to convert to MOBI with the "both" MOBI file type option selected to accomplish the same thing. (Having said that, I prefer using the Previewer even though it is more work because I trust it to produce correctly formatted files.)

01-08-2018, 05:10 PM	#2
jhowell Grand Sorcerer Posts: 7,105 Karma: 92190133 Join Date: Nov 2011 Location: Charlottesville, VA Device: Kindles	Technically the new font boldness slider is not part of Enhanced Typesetting. It works for KF8 (azw3) and for KFX formats, but not the old MOBI7 format. It looks like you are doing the conversion from EPUB to AZW3 to EPUB to fix a character encoding issue. As an alternative you could use the "Encode HTML in UTF-8" option of the Modify ePub plugin for calibre instead. The Kindle Previewer uses Amazon's kindlegen program to convert your EPUB to a Master MOBI file that contains both MOBI7 and KF8 formats. You kindle uses the KF8 part of the file, which enables the boldness slider. As an alternative you could use calibre to convert to MOBI with the "both" MOBI file type option selected to accomplish the same thing. (Having said that, I prefer using the Previewer even though it is more work because I trust it to produce correctly formatted files.)