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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.

PDF versions

March 2024 by Peter Wyatt
Article


How meaningful is PDF’s version number? SafeDocs’ research reveals that 20% of extant files contain features that exceed the stated version!

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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

Article

February 2024 by Duff Johnson
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It’s time for AI integrators to help authors make semantically rich documents… and step up their game on PDF inputs.

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January 2024 by PDF Association staff
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A major focus of the PDF Association’s work is to increase awareness and adoption of standards and best practices for … Read more

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January 2024 by PDF Association staff
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The PDF, ICC, NITF and video datasets used in SafeDocs’ performer hackathons and evaluations are now available for download from … Read more

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December 2023 by PDF Association staff
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In 2023, the volunteers and staff of the PDF Association were busier than ever, with new working groups, resources, and … Read more

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December 2023 by Duff Johnson
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It’s difficult to find other search terms that share PDF’s continuous upwards trend. Few technologies show this resilience, especially over … Read more

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December 2023 by PDF Association staff
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Join this webinar to learn why PDF/X-1a was a good idea 20 years ago, but no longer today and find … Read more

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December 2023 by PDF Association staff
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The Imaging Model Technical Working Group (TWG) will now focus on the research, specification, and prototyping at the very core … Read more

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November 2023 by Dietrich von Seggern (callas software GmbH)
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Callas software’s Dietrich von Seggern describes a few of the innovative technologies under consideration for PDF as discussed at the … Read more

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October 2023 by Peter Wyatt
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Although PDF is commonly understood as a single holistic file format, in reality, PDF comprises a number of distinct dialects, … Read more

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