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Re: PDF resize

for

From: Jerra Strong
Date: Nov 18, 2020 9:47AM

Hi,

If you look at the "failures" for 1.4.4, basically if enlarging text causes
things to become unreadable by pushing them out of view or making things
overlap, that's a problem. On the WCAG-to-ICT Advice for 1.4.4
<https://www.w3.org/TR/wcag2ict/#visual-audio-contrast-scale> they say that
if your viewer software enlarges to 200% easily, then that's the work done
for you. They also advise against using images of text where possible, in
case they degrade when zooming.

As far as 1.4.10, for PDFs, I would try to reflow the document in Acrobat
<https://helpx.adobe.com/acrobat/using/reading-pdfs-reflow-accessibility-features.html#reflow_a_pdf>
and see what happens with your document.

The Success Criterion 1.4.12
<https://www.w3.org/WAI/WCAG21/Understanding/text-spacing.html> currently
doesn't apply to PDF, according to WCAG, because PDFs can't be adjusted
like that.

On Wed, Nov 18, 2020 at 7:51 AM Jonathan Avila < <EMAIL REMOVED> >
wrote:

> Hi, would expect that SC 1.4.4 resize text would be met by PDF viewers if
> you could use the zoom feature in the viewer to increase text size up to
> 200% of the default -- even with scrolling in two directions.
>
> For SC 1.4.10 I would imagine the reflow feature of the PDF specification
> would be used. This feature can be seen in Adobe Acrobat and in VIP Reader
> although it is not viewer specific feature.
>
> Jonathan
>
>