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Re: Cairo plans

From: Werner LEMBERG
Subject: Re: Cairo plans
Date: Sat, 04 Sep 2021 12:38:10 +0000 (UTC)

>>> Most PDF readers have a mapping from Adobe-Japan1 CID to Unicode
>>> code points as follows.
>> Is it impossible to discover this mapping from the OTF file alone?
> If I understand correctly, yes.

I guess Masamichi means that the mapping is not part of the font

>> Where does the OTF file say it is using encoding Adobe-Japan1-UCS
> It is described in ROS in the CFF table.
> ROS means `Registry-Ordering-Supplement`.
> For the current HaranoAjiMincho-Regular.otf,
> Registry is `Adobe`, Ordering is `Japan1`, and Supplement is `7`.
> So it is an `Adobe-Japan1-7` font.
> PDF readers use Adobe-Japan1-UCS2 for `Adobe-Japan1-*` fonts.

Hopefully there is a solution that makes Cairo do the mapping work for


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