Thread: Kindle firmware update 5.13.5
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Old 03-18-2021, 01:41 PM   #51
PoP
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Quote:
Originally Posted by jhowell View Post
...
After further testing I have determined that the Publisher Font option is controlled by metadata within the KF8 file. If EXTH field 528 (OverrideKindleFonts) is set to "true" then the Publisher Font option is made available for that book. If it is missing or set "false" the Publisher Font option will not be shown.

I believe that this is a change in the new firmware (5.13.5), but I don't have a Kindle running the previous firmware to verify that.
On 5.13.3 the Publisher Font option appears in both cases.

I thought EXTH 528 was controlling locking Publisher Fonts (in KFX format). It worked in that book. But after testing another book it didn not work. Now I am confused.
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