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Re: PowerPoint "groups" alt text not seen by screen reader

From: Jonathan Katz <jonathanpkatz@gmail.com>
Date: Wed, 30 Aug 2017 14:24:21 -0400
Message-ID: <CAP233vbvnQZt4E0rVdHA3pY53s=jPmfMMcMw4yvDVt9=paDsWA@mail.gmail.com>
To: Katie Haritos-Shea <ryladog@gmail.com>
Cc: chagnon@pubcom.com, WAI Interest Group <w3c-wai-ig@w3.org>
I've been doing the same thing. I usually try to also write out a
description of the group in the slide itself.

*-Jonathan Paul Katz*
 jonathanpkatz@gmail.com

On Mon, Aug 28, 2017 at 10:53 PM, Katie Haritos-Shea <ryladog@gmail.com>
wrote:

> Brian,
>
> I found the same thing, grouping alone doesn't work. I insert all the
> images I want in a group. Then I 'save as' that grouped image as a single
> image as a PNG (back into my images folder) - and then, re-insert that
> image back onto the slide. Then I apply the alt text to that.
>
> Katie Haritos-Shea
> 703-371-5545 <(703)%20371-5545>
>
> On Aug 28, 2017 10:20 PM, "Chagnon | PubCom" <chagnon@pubcom.com> wrote:
>
>> Generally, A.T. can stumble when we group objects in any of our document
>> programs, especially when we want the A.T. to access the Alt-Text. You’ll
>> get different results depending upon the A.T., the authoring program, and
>> what types of elements are in the group.
>>
>>
>>
>> Best Practice:
>>
>>    - Don’t group elements (or be sure to ungroup them before finalizing
>>    the file or exporting to PDF).
>>    - Put the Alt-text on just one element and artifact the others.
>>
>>
>>
>> Granted, PowerPoint (and M.S. Word) don’t yet allow us to artifact
>> elements in their programs, but if you’re exporting to PDF, you can
>> artifact them there. Adobe InDesign does, however, allow the designer to
>> artifact individual elements in the layout file, and that is carried over
>> into the exported PDF. We need similar capability in M.S. Office programs.
>>
>>
>>
>> --Bevi Chagnon
>>
>>
>>
>> *From:* Brian Stevens [mailto:bstevens@ilsworld.com]
>> *Sent:* Monday, August 28, 2017 5:04 PM
>> *To:* w3c-wai-ig@w3.org
>> *Subject:* PowerPoint "groups" alt text not seen by screen reader
>>
>>
>>
>> Hi,
>>
>>
>>
>> I am making PowerPoint graphics accessible using alt text. Some of them
>> are charts that are grouped vector graphics created in PowerPoint, so I
>> applied alt text to the group. When I test with NVDA, it reads the text
>> elements in the group, but does not read the alt text. NVDA doesn't seem to
>> read the alt text on any “groups” in PowerPoint.
>>
>>
>>
>> In order to work around this, I saved a rasterized PNG version of the
>> graphic to use instead, and added alt text to the PNG. NVDA reads this alt
>> text just fine.
>>
>>
>>
>> Is it okay for me to rasterize these charts? Is there a better way?
>>
>>
>>
>> I'm worried because I've learned that rasterizing text has some
>> readability drawbacks when it comes to screen magnification. Is it worth
>> the tradeoff? (Rasterizing would also limit translatability...)
>>
>>
>>
>> Also, does anyone have experiences with other screen readers not reading
>> alt text on PowerPoint groups?
>>
>>
>>
>> Many thanks for your help,
>>
>>
>>
>> Brian Stevens
>>
>
Received on Wednesday, 30 August 2017 18:24:44 UTC

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