PDF/UA TWG

The PDF/UA Technical Working Group provides resources for developers, marketers and policy makers who need to understand ISO 14289, the International Standard for universally accessible PDF, first published in August 2012.

PDF/UA is of interest to organizations concerned with conformance to regulations requiring accessible electronic content including WCAG 2.0, Section 508 in the US, Canada’s Common Look and Feel standard, Britain’s BS 8878, and others.

Join us!

The PDF/UA Technical Working Group (TWG) is a collaboration of PDF software developers and PDF accessibility subject matter experts who use the TWG's resources to share their knowledge and experience of PDF/A technology in a vendor-neutral space.

Members of the PDF Association are entitled to participate in online and in-person PDF/UA TWG meetings, subscribe to the listserv, access draft documents and gain other benefits as well. Review the options for membership, or get in touch to learn more!

History of PDF/UA

2016-03-31 ANSI adopts PDF/UA-1 as an American National Standard, technically identical to the ISO standard, but available for only $15
2015-02-18 The US Access Board adopts PDF/UA for its new draft NPRM updating US federal government ICT Standards and Guidelines
2014-12-17 ISO publishes ISO 14289-1:2014, a minor technical update
2014-07-29 AIIM publishes the PDF/UA-1 Technical Implementation Guide for ISO 32000
2014-06-14 The PDF Association publishes the PDF/UA Reference Suite
2014-04-30 The PDF Association publishes the Matterhorn Protocol 1.02
2013-10-03 AIIM updates the PDF/UA Technical Implementation Guide to version 1.2a
2013-08-15 Access for All announces their free PAC 2.0, the first implementation of the Matterhorn Protocol
2013-08-04 The PDF Association publishes the Matterhorn Protocol, the definitive validation algorithm for PDF/UA
2013-03-07 AIIM publishes PDF/UA Technical Implementation Guide: Understanding ISO 14289-1 (PDF/UA-1)
2012-08-16 AIIM publishes Achieving WCAG 2.0 with PDF/UA
2012-08-15 Adobe Systems announces its intention to integrate PDF/UA into their products
2012-08-01 ISO publishes ISO 14289 (PDF/UA)
2004 AIIM Standards launches the PDF/UA committee to study accessibility guidelines for PDF technology