Accessible PDFs

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Bloor Research, a company founded with the principle “to enable people to choose the optimal technology solution for their needs”, released a Market Update on the subject of The Creation of Accessible Documents.
Here is the link to the page, where the documentation can be downloaded after a registration:
http://www.bloorresearch.com/research/Market-Update/1041/Creation-of-Accessible-Documents.html
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On YouTube I found this presentation from May 2008 about “Integration of Accessibility into PDF Documents” . Author is Sean Keegan from Berkley, University of California.

In principle is it advised to save a document while you are working on it; just to make sure that the work is not gone by mistake. Unfortunately Adobe has integrated a feature into Acrobat, that the whole tag-tree is closed during the saving process. This is not really a serious problem. But as I [...]

Here I have an example how a combination of image and text, in this case also a link, could be design valid in the tag-tree. To see this example in full size please click on the image.

As described in the first post about this topic, the “figure” tag includes all elements. First the image [...]

With the release of Acrobat 9 Adobe in general introduces a interesting new version of Acrobat called Acrobat Pro Extended. As the set of features stays the same in all other versions (Reader, Standard and Pro) the version Pro Extended delivers two basic improvements from my point of view

the possibility to integrate video and audio [...]

Before later there should be discussed, why Adobe has spent not a little thought to accessibility during the release of version 9 of Acrobat (from my point of view), I want to describe first of all, why there are a few enhancements and how they work. I want to mention that these enhancements are grounded [...]

Within these pages I was able to find some informations which are helpful for the creation of accessible PDFs. Please notice that these pages are only in german language.
Design of accessible PDF-Documents at “Einfach für Alle”:
www.einfach-fuer-alle.de/artikel/pdf-barrierefrei-umsetzen/
Questions about PDFs - Requirements for accessible PDF-Documents - BIK Online:
www.bik-online.info/info/entwicklung/pdf.php
How blind computer users get access to PDF-Documents: A very [...]