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<div class="moz-cite-prefix">On 2021-02-05 19:21, William_J_G
Overington wrote:<br>
</div>
<blockquote type="cite"
cite="mid:27ca65e6.4b8.177733668c9.Webtop.231@btinternet.com">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?</blockquote>
<p>That seems like a long-winded way to go about it, before color
fonts were standardized. <br>
</p>
<p>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</p>
<p>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.<br>
</p>
<p><img src="cid:part1.xRWhSdR3.UsXw9Bqb@w3.org" alt=""></p>
<pre class="moz-signature" cols="72">--
Chris Lilley
@svgeesus
Technical Director @ W3C
W3C Strategy Team, Core Web Design
W3C Architecture & Technology Team, Core Web & Media</pre>
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