RE: PDF Authoring Standards for Accessibility
- From: "Chip Orange" <Corange@xxxxxxxxxxxxxxx>
- To: <jfw@xxxxxxxxxxxxx>
- Date: Tue, 13 Sep 2005 14:23:22 -0400
Hi Chuck,
I can tell you the basic idea, and hopefully http://adobe.com can help
you in case your adobe software manual isn't clear enough (assuming
you're producing your PDF with Adobe software that is).
The basic idea is that you must have access to the original material
that was used to produce the PDF. This can be a word processing
document for instance, or anything else, where the PDF was created by
use of a software tool in conjunction with the software (such as MS
Word) that was used to produce the original information. What you
usually do is to print the item, but not to a printer, but to a special
driver that produces a PDF file instead.
You then create a PDF, and make sure that it is done so that the text of
the information is included (this is almost certainly a checkbox on one
of the dialogs of the PDF creation software).
If you created the PDF by scanning a piece of paper into a scanner, and
turning that image into a PDF, then it's tough to do a decent job of
making it accessible. By default it isn't accessible at all (just as an
image I mean)
Where I work we do indeed do this (as others file paper documents with
us); we use a piece of software from Adobe called "Capture" to "OCR" the
image, and add the recognized text to the image PDF. The OCR'ed text is
seldom very correct, but it is a lot better than nothing, but not nearly
so good as the text that could be added if the PDF were created with an
adobe software package and an MS Word document (for instance). Some
packages, such as WordPerfect, have the ability to create a PDF file
(with the text included), without the user having to buy anything from
Adobe, but usually you have to buy an extra piece of software from Adobe
to create a PDF directly from a software package such as MS Word.
HTH,
Chip
Chip Orange
Database Administrator
Florida Public Service Commission
Chip.Orange@xxxxxxxxxxxxxxx
(850) 413-6314
(Any opinions expressed are solely those of the author and do not
necessarily reflect those of the Florida Public Service Commission.)
_____
From: jfw-bounce@xxxxxxxxxxxxx [mailto:jfw-bounce@xxxxxxxxxxxxx]
On Behalf Of Chuck Kyle
Sent: Tuesday, September 13, 2005 1:40 PM
To: jfw@xxxxxxxxxxxxx
Subject: Re: PDF Authoring Standards for Accessibility
Hi Chip, I have a web site which has information as an
image. Can you tell me specifically how I can use this image and change
or convert it so that Jaws 6.2 will read it? Bhanks, chuckk@xxxxxxxx
----- Original Message -----
From: Chip Orange <mailto:Corange@xxxxxxxxxxxxxxx>
To: jfw@xxxxxxxxxxxxx
Sent: Monday, September 12, 2005 5:54 PM
Subject: RE: PDF Authoring Standards for Accessibility
I'm sure Adobe has these standards clearly laid out at
http://adobe.com .
In general, scanning a document as an image, and using
that image to create a pdf is completely inaccessible. Running an OCR
routine on such an image is only partially accessible at best.
Creating a PDF as part of a document printing option is
the only way to possibly see that it contains the text of the document,
as well as it's proper display image. Even then, the text must be
specifically included, and it must not be protected by digital rights
management technology (an option in Adobe creation software and third
party add-ons for creating PDF files).
hth,
Chip
Chip Orange
Database Administrator
Florida Public Service Commission
Chip.Orange@xxxxxxxxxxxxxxx
(850) 413-6314
(Any opinions expressed are solely those of the author
and do not necessarily reflect those of the Florida Public Service
Commission.)
_____
From: jfw-bounce@xxxxxxxxxxxxx
[mailto:jfw-bounce@xxxxxxxxxxxxx] On Behalf Of Peter Quaiattini
Sent: Monday, September 12, 2005 4:16 PM
To: JFW List (E-mail)
Subject: PDF Authoring Standards for
Accessibility
Here, at my place of work, I have been asked
about what standards exist for authoring PDF documents which ensure that
they are accessible to adaptive technology (ie: JAWS etc). Does anyone
know if PDF accessibility authoring standards exist and where might I
find them?
In my experience, I have encountered PDFs that
are quite easy to read, while others are quite impossible. I don't know
what makes the difference though to advise our PDF authors here.
Any help is appreciated.
Regards,
Peter Quaiattini
Canadian Pacific Railway
Database Systems
403-319-6579
peter_quaiattini@xxxxxx
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