The reason I ask is that you seem to be totally correct Quoth.
I came across this, from
here.
Quote:
[...]
We allow usage of Adobe purchased fonts per the following:
1. PDF: Covered as long as you subset the font.
2. ePUB: You may embed fonts in documents delivered in the ePUB format provided you subset and obfuscate the font. The IDPF has a prescribed a methodology for the obfuscation as part of the ePUB 3 specification.
3. KF8: We have determined that the KF8 format provides enough protection to serve as a sufficient obfuscation method. Provided you subset the font, you are covered.
[...]
Caleb Belohlavek
Principal Product Manager, Adobe Type
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