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Re: PDF resize


From: Jerra Strong
Date: Nov 20, 2020 5:20PM


For the zoom/enlarge question, PDF software can zoom in to 200% on a PDF,
so technically, you'll be passing the WCAG as written. Scrolling in 2
directions or reading them on the phone is not an ideal experience for
anybody (even me!), but because you can zoom to 200% without overlap or
cropping, and because Acrobat Reader has a "reflow" option: a text-only pdf
(i.e.not a fillable form), is passing those WCAG success criteria (1.4.4
and 1.4.12), because the viewer software can zoom and/or reflow when

I am not the right person to address the ePub vs. PDF question. In my
opinion, PDFs are more common/familiar to more people and the software to
read them is more common, but ePubs have more accessibility-focused
features available.

On Thu, Nov 19, 2020 at 11:51 PM Edelényi Zsolt < <EMAIL REMOVED> > wrote:

> Hi,
> Thank you for your contribution so far.
> Jonathan:
> > 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.
> Jerra:
> > 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.
> Duff:
> > Not sure what you are referring to here. PDF can be reflowed in an
> interoperable manner via Tagged PDF, but thus far few applications leverage
> Tagged PDF for reflow purposes.
> To summarize:**You *can enlarge***PDF but*need**scrolling*. You cannot
> reflowed without special technology.
> Question: *This**means success or failure of 1.4.4. in case of PDFs? *
> I am also wondering, if ePUB is better choice than PDF for accessible
> publications. What do you think?
> Zsolt
> > > > >

Jerra Strong
Interim Accessible Conformance and Design Specialist
UNLV|Office of Accessibility Resources
Office of the Vice Provost for Academic Programs
*Pronouns: He/Him/His*