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About the contributor
Olaf Drümmer

Olaf Drümmer is founder and managing director of callas software, a Berlin/Germany based company specializing in PDF analysis and processing, and of axaio software, developer of software extensions for Adobe Indesign and QuarkXPress. In addition he has been actively involved in the development of PDF standards within ISO since 1999.
More contributions
The Power of the Page

It’s a question that vexes vendors of web-based solutions everywhere: why do people still insist on PDF files? And why does PDF’s mindshare keep going up? “PDF is such antediluvian technology!” they say. “It’s pre-web, are you kidding me? It’s so old-f …

PDF Association technical resources: an overview

PDF is PDF because files produced with one vendor’s software can be read using a different vendor’s software with no loss of fidelity. Interoperability is key to our industry. The PDF Association is a international membership organization dedicated to …

2022: The last year of paper for records-keeping

NARA (The National Archives and Records Administration) is the final depository for the long-term records generated by all other agencies of the U.S. Federal Government. The agency has a key role in preserving the cultural history of the republic as we …

PDF 2.0 examples now available

The PDF Association is proud to present the first PDF 2.0 example files made available to the public. Created and donated to the PDF Association by Datalogics, this initial set of PDF 2.0 examples were crafted by hand and intentionally made simple in construction to serve as teaching tools for learning PDF file structure and syntax.

PDF 2.0 interops help vendors

The PDF 2.0 interop workshops included many vendors with products for creating, editing and processing PDF files. They came together in Boston, Massachusetts for a couple of days to test their own software against 3rd party files.

WCAG 2.0 joins PDF/UA as an ISO standard


With Monday’s publication of W3C’s Web Content Accessibility Guidelines (WCAG 2.0) as ISO/IEC 40500, ISO standards now provide accessibility requirements for a large fraction of the world’s electronic content.

While ISO 14289 (PDF/UA) governs the creation and use of accessible PDF documents and forms, ISO/IEC 40500 (WCAG 2.0) provides normative principles, guidelines and success criteria for accessible web content. WCAG 2.0 is fundamentally rooted in traditional web technologies such as HTML, CSS and JavaScript, but the standard also provides much-needed guidance for multimedia, graphic design and other considerations.

Organizations that implement both WCAG 2.0 and PDF/UA will be able to meet the highest standards for ensuring both web-based and PDF content is accessible to users with disabilities.

Chairman of the PDF Association Olaf Drümmer said: “The PDF Association welcomes the addition of WCAG 2.0 to the expanding list of ISO standards addressing accessibility in electronic content.  Coupled with PDF/UA, which was published in August of 2012, it’s now possible to use ISO standards to meet the needs of organizations for a standardized approach to accessibility across a wide range of content.”


Tags: PDF/UA, WCAG, acccessible PDF, accessible, accessible conent
Categories: PDF/UA