Re: Adobe Acrobat accessibility criteria

["Connor P. Jackson via ntg-context" <ntg-context@ntg.nl>]

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My prior message got stuck in Moderation Limbo because I attached a PDF, so
resending without the attachments:

Apologies, I realized about an hour after I hit send that I should have
submitted an MRE! Here is an MRE adapted from the wiki page on PDF/A
<https://wiki.contextgarden.net/PDF/A>:

---

\setupinteraction[title=MyTitle,state=start]


\setupinteractionscreen[option={title}]


\setupbackend[

format={pdf/a-1a:2005},

profile={default_cmyk.icc,default_rgb.icc,default_gray.icc},

intent=ISO coated v2 300\letterpercent\space (ECI)]


%% Tagged PDF

%% method=auto ==> default tags by Adobe

\setupbackend[export=yes]

\setupstructure[state=start,method=auto]


\starttext


\chapter[chap:testing]{Testing}


Here is some text


\useURL[url1][https://xkcd.org][][Here is a link to xkcd]\from[url1]


\stoptext

---

Including \setupinteractionscreen[option={title}] fixed the title issue
(#1)! Thanks for that. I will add that to my default template.


And to see #s 2 and 3, I can send a PDF where I have fixed those errors in
Adobe Acrobat—adding a link-OBJR tag and setting the Tab Order. Is there a
preferred method since the listserv doesn’t seem to like large attachments?

Thanks!

Connor

On Jul 27, 2021 at 12:35:28 AM, Hans Hagen <j.hagen@xs4all.nl> wrote:

> On 7/27/2021 3:11 AM, Connor P. Jackson via ntg-context wrote:
>
> Hello ConTeXt friends,
>
>
> I am newly exploring ConTeXt in search of a better way to produce
>
> PDF/UA-1 accessible and PDF/A compliant documents programmatically. From
>
> my early experiments, ConTeXt docs appear to fully satisfy the veraPDF
>
> validator, but Adobe Acrobat’s Accessibility Checker has three qualms
>
> with ConTeXt-produced documents:
>
>
>  1. The document is configured to display the file name rather than the
>
>     title in the top of the window (DisplayDocTitle == True is what I
>
>     think is required). See here
>
>     <https://www.w3.org/TR/WCAG20-TECHS/PDF18.html>.
>
>
> Does this work at your end?
>
> \setupinteraction
>   [title=MyTitle,state=start]
>
> \setupinteractionscreen
>   [option={title}]
>
> \starttext
>     test
> \stoptext
>
>
>  2. "Tagged Annotations" fails, suggesting that the document’s links are
>
>     not properly tagged. I believe the issue is missing "Link - OBJR”
>
>     (object reference) tags. See here
>
>     <
> https://amp.levelaccess.net/public/standards/view_best_practice.php?violation_id=807
> >,
>
>     here <https://www.w3.org/TR/WCAG20-TECHS/PDF11.html>, and here
>
>     <http://verapdf.org>.
>
>  3. "Tab Order" fails, I believe because ConTeXt does not specify that
>
>     the tab order should follow the Document Structure, so Acrobat reads
>
>     it as unspecified. See here
>
>     <https://www.w3.org/TR/WCAG20-TECHS/PDF3.html>.
>
>
>
> Is there something I could be doing to correct these issues in my
>
> ConTeXt documents? Or is this a change that would have to be made within
>
> ConTeXt itself? I know that Adobe is not the definitive arbiter of what
>
> an “accessible” PDF looks like, but for many organizations, passing the
>
> Acrobat accessibility checker is a prerequisite, so it seems worthwhile
>
> to me to make ConTeXt capable of it.
>
> Most fo this is rather trivial but we need examples (mwe) and expected
> result (in only have an old acrobat x pro and the latest reader, so
> maybe i can't check all the latest greatest fancy features).
>
> Hans
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
>

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