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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 pirates and more from PDF in the Wild!

April 2025 by PDF Association staff
PDF in the Wild


AI’s Pirated-Books Problem | Correcting US financial regulations referencing PDF | New crawl limit improves CC’s capture of PDF | W3C note on “Accessibility of machine learning and generative AI” … Read more

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March 2025 by Robin Watts (Artifex Software Inc)
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Brotli compression is coming soon to PDF 2.0, enabling smaller file sizes. Sample PDF files are available to kickstart development!

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March 2025 by PDF Association staff
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When will AI understand document semantics? | Will LLM-based OCR live up to the challenge? | Indicating whether the publisher … Read more

PDF in the Wild

March 2025 by Erin Dempsey (TWAIN Working Group)
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This article explores how ISVs can use PDF/R to improve imaging application software’s efficiency, reduce development complexity, and enhance customer … Read more

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March 2025 by PDF Association staff
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The PDF Association will host a trio of PDF technology events in Berlin from September 11-19. Save the date… and … Read more

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February 2025 by PDF Association staff
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The new TWG will explore topics such as verifiable credentials, digital signatures, modern cryptography and content provenance frameworks in alignment … Read more

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February 2025 by PDF Association staff
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These free XMP Extension Schema templates support PDF documents that conform to multiple subset standards, including PDF/A, PDF/X, PDF/VT, and … Read more

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February 2025 by Peter Wyatt
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Google’s Jpegli promises smaller JPEG images (and so, smaller PDF files) with no change to reader software! Check it out … Read more

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February 2025 by PDF Association
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PDF Week Boston 2025 is the first of two members-only events in 2025 focused on PDF technology specifications and standards … Read more

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February 2025 by PDF Association staff
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PDF bookmarks from Google Chrome? | What does “PDF” mean to you? | Two reasons why everyone needs PDF | … Read more

PDF in the Wild

February 2025 by PDF Association staff
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Organizations worldwide rely on email at almost every level of daily operations, but lack options for effectively preserving and accessing … Read more

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