<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body bgcolor="#FFFFFF">
<div>Hi Jason,<br>
<br>
</div>
<div><br>
On 29/06/2019, at 2:34, "Jason White via accessibility" <<a href="mailto:accessibility@tug.org">accessibility@tug.org</a>> wrote:<br>
<br>
</div>
<div></div>
<blockquote type="cite">
<div>
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.apple-tab-span
{mso-style-name:apple-tab-span;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal">From a user’s standpoint, reading the LaTeX source and reading an HTML or (in the future, preferably a tagged) PDF rendering are two quite distinct activities. It seems to me that there’s a need to support both.</p>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>Sure. Including the full LaTeX source document is a way that some journals choose to satisfy their accessibility obligations. I regard this as a cop-out, which does not adequately satisfy those obligations. Furthermore, it does not generalize to larger
publications like text-books, as authors and publishers can have very good reasons for not wishing to release the source.</div>
<div><br>
</div>
<br>
<blockquote type="cite">
<div>
<div class="WordSection1">
<p class="MsoNormal"><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">The problem of
mathematical notation merits a separate discussion. The minimal approach would be to embed the original LaTeX source of the expression as alternative text in the PDF.
</span></p>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>There are at least 3 different places where this can be done.</div>
<div>In my limited experience of screen-reading software, different applications access different places. Thus in my documents I usually populate all 3.</div>
<br>
<blockquote type="cite">
<div>
<div class="WordSection1">
<p class="MsoNormal"><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">So far as I know,
there’s no analogue of MathML tags that PDF reading applications can process to make mathematics accessible.</span><br>
</p>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>Are you not familiar with the MathPlayer plug-in to Acrobat ?</div>
<div>This does a great job of reading MathML from tagged PDFs.</div>
<div>The limitation is the lack of PDFs built that way. I've done some early work on doing this from LaTeX source (see a PDF linked from TUG's Accessibility page).</div>
<div>I hope to return to this once the non-math stuff is nearly perfect, for PDF 2.0.</div>
<br>
<blockquote type="cite">
<div>
<div class="WordSection1">
<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Then there are chemistry, music, and probably other notations to consider as well – just as is true on the web in general. So the solutions ought to be generalizable, so far as is feasible.<o:p></o:p></p>
<p class="MsoNormal"><br>
</p>
<p class="MsoNormal"><br>
</p>
</div>
</div>
</blockquote>
<br>
<div>Cheers.</div>
<div><br>
</div>
<div> Ross</div>
</body>
</html>