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Techniques for Accessible PDF: Headings

April 2025 by PDF Association staff

Headings are vital in organizing document content, especially with longer or complex documents. For assistive technology, the correct use of headings allows what would otherwise be an undifferentiated stream of text to become a navigable document in which readers can quickly find the content they want to read, and skip the content they don’t want to read.

Getting headings right is especially important with PDF documents, which can be very long, and may include deeply nested headings, multiple documents, document fragments, and more. Accessibility techniques for headings may therefore differ from techniques that are applicable to other technologies such as HTML.

On this basis the PDF Association is pleased to announce its second release of Techniques for Accessible PDF covering headings.

AI researchers leverage SafeDocs PDF corpora

April 2024 by PDF Association staff
PDF in the Wild


Hugging Face.AI examines PDF. New PDF support in Android. Google reinvents a 31 year-old PDF feature. FireFox wants you to know that you can edit PDFs in its browser. It’s … Read more

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April 2024 by PDF Association staff
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A new ISO extension to PDF 2.0 adds PDF support for the Khronos Group’s glTF 3D format.

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April 2024 by Peter Wyatt
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All ISO publications are written according to a set of rules known as the ISO Directives. In this article, the … Read more

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April 2024 by axes4 GmbH
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Accessibility is vital for ensuring that everyone, regardless of their abilities, can fully participate in society. This article delves into … Read more

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March 2024 by PDF Association staff
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Authoritative answers to common questions about Tagged PDF, WTPDF and PDF/UA.

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March 2024 by Peter Wyatt
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How meaningful is PDF’s version number? SafeDocs’ research reveals that 20% of extant files contain features that exceed the stated … Read more

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March 2024 by Peter Wyatt
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Peter Wyatt shares his custom metadata panels – very useful for discovering ISO standards and PDF Declarations metadata! (until vendors … Read more

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March 2024 by PDF Association staff
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Based on WTPDF, ISO 14289-2 serves to assure institutions that the PDF Association’s requirements for creating and validating accessible PDF … Read more

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March 2024 by PDF Association staff
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Join pdfa.org for exclusive member benefits tailored to PDF development. Our Member Benefit Manager, Melina, engages in insightful discussions with … Read more

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March 2024 by PDF Association staff
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The latest veraPDF release candidate adds PDF/UA-2 support. LibreOffice creates PDF/A and PDF/UA together. A “white paper” gets PDF wrong, … Read more

PDF in the Wild

March 2024 by PDF Association staff
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The PDF Association has established a new Liaison Working Group (LWG) to serve as a place for forensics experts and … Read more

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