Thread: Locked Publisher font?
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Old 04-11-2021, 04:52 PM   #16
jhowell
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Posts: 7,099
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Join Date: Nov 2011
Location: Charlottesville, VA
Device: Kindles
Quote:
Originally Posted by PoP View Post
Upon today's update from the Apprentice I converted the KFX of the B084M663VB sample to epub with Calibre.
I am curious to see how quickly Amazon reacts to that new capability.

Quote:
Originally Posted by PoP View Post
I noticed that the fonts are not obfuscated and are not encrypted (as they were in the KF8 version).

I am guessing Amazon (is) was confident in KFX and felt no need to go the extra mile in this format.
Font obfuscation in KF8 is based on the IETF font obfuscation algorithm. The key is stored along with the data so it isn't at all effective in preventing them from being decoded.

There is essentially no protection of resources (images and fonts) in Kindle e-book formats. DRM only protects the text.
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