The PDF/UA Technical Working Group (TWG) drives development of ISO 14289 (PDF/UA) through its association with ISO TC 171 SC 2 WG 9 and publishes resources for developers who need to understand the International Standard for universally accessible PDF.

PDF/UA is of interest to those concerned with conformance to regulations requiring accessible electronic content including WCAG 2.1, 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 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 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!

Communicate with us!

There are a variety of ways for both members and non-members to participate in accessibility technology development under the umbrella of the PDF Association. Email pdfua@pdfa.org to get in touch with the PDF/UA TWG or simply to provide feedback.

History of PDF/UA

Note: ISO 14289-1:2014 is ISO’s first fully accessible standard; the document conforms to PDF/UA.


Klaas Posselt

Matthew Hardy

Membership has its benefits

PDF Association membership offers many technical benefits to developers and significant marketing value to software publishers.

Learn more, and sign up today!