[MPEG-OTSPEC] Colour fonts and PDF

[Chris Lilley]

On 2021-02-05 19:21, William_J_G Overington wrote:
> I seem to remember that some years ago there was something - possibly 
> in this list - about somebody having produced an experimental program 
> that had input of text and the program produced a PDF document, 
> without any alteration being needed to the PDF specification, the  
> PDF document being produced by extracting the layers from the 
> COLR/CPAL font and producing a multilayer PDF document, one layer for 
> each colour. Has that idea been developed and become mainstream please?

That seems like a long-winded way to go about it, before color fonts 
were standardized.

But in terms of improving font support in the PDF standard, comments 
should be addressed to  ISO/TC 171 which develops ISO 32000-2, Document 
management – Portable document format – Part 2: PDF 2.0

And yes, I tried just now and, while the chromatic font could be 
embedded in PDF, Acrobat gave up and didn't even display the monochrome 
fallback.

-- 
Chris Lilley
@svgeesus
Technical Director @ W3C
W3C Strategy Team, Core Web Design
W3C Architecture & Technology Team, Core Web & Media
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