[mpeg-OTspec] FW: [mpeg-OTspec] RE: font media types

suzuki toshiya mpsuzuki at hiroshima-u.ac.jp
Tue Apr 5 23:56:29 CEST 2011

Dear Vladimir,

I'm sorry for lated participation of this discussion.
The distinction for TTF-only implementation is still significant,
SC34 will think.

In OOXML (ISO/IEC 29500, Microsoft Office XML), there is a boolean
flag which had ever been used to distinguish TrueType font and
various bitmap fonts. It is still excluding CFF OpenType from TrueType.
Current OOXML spec does not clarify it, but future Corrigendum
will clarify it.

In addition, current Microsoft Office (2010) can embed TrueType
into the document package, and cannot embed CFF OpenType. This
situation is same in XPS, another ECMA standard. If I try to embed
CFF OpenType into XPS, it is converted to bitmap picture.

Also, the conformance level definition of OFF distinguishes CFF
OpenType and glyf OpenType, it is consistent attitude for SC29/WG11
to request different media types for them, I think.


Levantovsky, Vladimir wrote:
> Forwarding to the AHG list on behalf of Chris Lilley
> -----Original Message-----
> From: Chris Lilley [mailto:chris at w3.org] 
> Sent: Tuesday, April 05, 2011 5:01 PM
> To: Thomas Phinney
> Cc: Levantovsky, Vladimir; John Hudson; David Lemon; OTspec; Tab Atkins; Karsten Luecke
> Subject: Re: [mpeg-OTspec] RE: font media types
> On Tuesday, April 5, 2011, 10:12:44 PM, Thomas wrote:
> TP> If you dropped explicit mention of having both outlines at once,
> TP> you could just sy that OFF was a generic type that could have
> TP> either kind of outlines. I think that is fine (and potentially
> TP> useful under some circumstances). 
> This is 
> a) true
> b) likley to result in the feedback that you need only one intertnet media type,application/font-off as this covders all the others
> b) may not be desirable.
> What is the current state of "supports TrueType but does not support OpenType, either because of the Type 1 glyph shapes or because of the extended language support options" implementations? Are they still significant?
> If yes, then at minimum we need an internet media type that identifies TTF. If no, then we need to decide which of application/font-otf and application/font-off is more likely to succeed, as they mean the same thing.

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