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What you need to know today.


February 2026 by PDF Association staff
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PDF’s stakeholders and developers span the globe. Here, we visualize the community’s reach.

Article

January 2026 by Patrick Gallot (Datalogics)
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Join us for this webinar to discuss ideas for reinventing 3D PDFs. We’ll explore how to make 3D PDFs better, … Read more

Article

January 2026 by PDF Association staff
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The new product showcase helps users explore the variety of products and services provided by PDF Association members!

PDF Association news

Recent articles

Informative (non-commercial) articles by PDF Association members and staff.


December 2025 by Diana Kosovac (PDFix)
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We analyzed PDF/UA-1 validation results across multiple commonly used tools using 155 reference files. This article shares key observations to … Read more


December 2025 by Anne Lazarakis (Iron Software)
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Developers rarely ask about PDF standards upfront, until an accessibility audit fails or a government contract demands it. By then, … Read more


December 2025 by Peter Wyatt
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We report on the technical aspects of the PDF files released by the US Department of Justice in connection with … Read more


December 2025 by Duff Johnson
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I asked ChatGPT, Gemini, Claude and CoPilot about PDF’s future. They agree that PDF isn’t fading – it’s becoming infrastructure.


December 2025 by Peter Wyatt
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Starting In 2025, the three most significant ISO standardized subsets of PDF – PDF/A, PDF/X, and PDF/UA – are now … Read more


December 2025 by Anne Lazarakis (Iron Software)
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Developers evaluating HTML to PDF libraries have specific compliance and accessibility requirements. Sales teams who understand PDF/UA and PDF/A can … Read more

News from the PDF Association

Announcements, publications, events and other updates.


September 2023 by Peter Wyatt
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PDF developers everywhere have a new resource; targeted test cases highlighting differences between implementations.


July 2023 by PDF Association staff
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As its members become more active in PDF Association communities we’ve taken new steps to ensure that easy access to … Read more


June 2023 by PDF Association staff
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Save October 16-20 for PDF Week Fall 2023 in San Francisco including an open Industry Symposium on Advancing PDF’s Imaging … Read more


June 2023 by PDF Association staff
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PDF’s imaging model is due for its first refresh in 20 years. You can participate by joining the new PDF … Read more


June 2023 by PDF Association staff
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The PDF Association is pleased to announce no-cost availability of ISO/TS 32003, adding support for AES-GCM to PDF 2.0.


June 2023 by PDF Association staff
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To celebrate the 30th anniversary of PDF technology the PDF Association has released a trailer for its forthcoming documentary.

News from PDF Association members

PDF Association members post updates on their software and services.


February 2026 by Lindsey Schroeder (Datalogics)
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Datalogics now makes it easier to create PAdES B-T digital signatures in PDF documents by generating signatures directly through a … Read more


February 2026 by Eric Shore (Datalogics)
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For organizations where compliance, privacy, and data control are non-negotiable, sending documents to external cloud services is often not viable. … Read more


February 2026 by Continual Engine
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Learn how poorly structured tables impact PDF accessibility, screen reader navigation, and compliance with accessibility standards.


February 2026 by Superace Software Technologies Co., Ltd.
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UPDF has launched its global #blossomwithupdf social media campaign, encouraging users to share how they enhance reading and note-taking productivity … Read more


February 2026 by Continual Engine
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Learn what a scanned PDF is, why it is inaccessible, and how to convert it into an accessible PDF using … Read more


January 2026 by Diana Kosovac (PDFix)
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PDFix now offers automated font correction powered by callas software technology, enabling users to fix font issues that cause PDF/UA … Read more

PDF in the Wild

Our (occasionally lighthearted) monthly post covering items of interest to PDF's technical community.


January 2026 by PDF Association staff
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HuggingFace echoes SafeDocs with new PDF datasets | Chrome does NOT sign or annotate your PDF! | ONIX application note … Read more


December 2025 by PDF Association staff
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Chrome’s U-turn on JPEG-XL – thanks (in part) to PDF! | PDF errata makeover | ZUGFeRD 2.4 / Factur-X 1.08 … Read more


November 2025 by PDF Association staff
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Browsers leverage PDF in their battle for dominance | Your PDF says a lot about you | Is Big Data … Read more


October 2025 by PDF Association staff
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Milestones in the History of PDF | Chrome’s newest feature | JPEG 2000 turns 25 | Windows 11 October 2025 … Read more


September 2025 by PDF Association staff
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Thank you Berlin | PDF 2.0 support gets top billing in coverage of LibreOffice 25.8 | Now Tagged PDF and … Read more


August 2025 by PDF Association staff
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Encoding multilingual content | The US Library of Congress recognizes individual PDF/A-4 conformance levels | “There was no book” | … Read more

PDF Association news for members


May 2025 by PDF Association staff
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Submit a Technical Poster to showcase your ideas at PDF Days Europe 2025!


May 2025 by PDF Association staff
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To give you – our members – more visibility, the main landing-page of pdfa.org now includes our members’ logos, showcasing … Read more


November 2024 by PDF Association staff
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We’ve started a free XML e-invoice viewing service to help end users to visualise their XML invoices. By adding their … Read more


September 2024 by PDF Association staff
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PDF Association members – especially those working on PDF’s imaging model – can now access TC 42 WG 23 resources … Read more


May 2024 by Peter Wyatt
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LOGIN REQUIRED: These synthetic files are intended for user experience and human-computer interaction (HCI) specialists to assess the behavior of … Read more


May 2023 by PDF Association staff
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The documentary is scheduled for release in early 2024. There’s still time to become a supporter!

 

Auflistung

Extensions to the formal Arlington PDF Data Model

The Arlington PDF Data Model is an
open-source data model of all PDF objects in the PDF Document Object Model. It is defined as a set of text-based TSV files that use a
predicate syntax to express data integrity requirements as they are expressed in ISO 32000.

Domains:

      • Computing science
      • Document engineering
      • Formal methods

Formalized grammar for PDF’s graphic operator and operands

Extend the Arlington PDF Data Model with a formal definition of
the PDF content stream operators and operands. See iText pdfcop GitHub repository.
pdfcop currently uses an ANTLR4 grammar but this is not a requirement.

Domains:

      • Computing science
      • Document engineering
      • Formal methods

Optimization of Brotli compression for PDF by using pre-defined dictionaries

Can custom Brotli dictionaries significantly benefit different kinds of PDF streams (e.g., font programs, ICC profiles, PDF content streams, etc.) beyond the
default Brotli dictionary used for web content?

Domains:

      • Computing science
      • Engineering
      • Image processing

PDF Days Europe 2025

Member News February 23, 2026

Datalogics now makes it easier to create PAdES B-T digital signatures in PDF documents by generating signatures directly through a … Read more

Article February 23, 2026

Now marking its 20th year in operation, the PDF Association evolved from a collaboration of five German companies focused on … Read more

Article February 19, 2026

Adobe has renewed its Standards Support Endowment for 2026, marking the 8th year of this program.

Member News February 17, 2026

For organizations where compliance, privacy, and data control are non-negotiable, sending documents to external cloud services is often not viable. … Read more

Page February 13, 2026

Post title with a link Post excerpt Interest areas Resource types Topics Post featured image Featured image is a document … Read more

Resource February 12, 2026

The definitive list of all ISO standards for PDF technology.

Resource February 12, 2026

Current status of the ISO standards development work in the program of work for ISO TC 171 SC 2 and … Read more

Resource February 12, 2026

Resolved errata against industry and ISO PDF-related publications.

Resource February 12, 2026

ISO provides public access to various clauses of ISO publications including the Normative References clause through its Online Browsing Platform, … Read more

Resource February 12, 2026

The PDF Association’s repositories in GitHub. Public repositories welcome contributions and comments from the public. Private repositories are restricted to … Read more

Member News February 12, 2026

Join us in Berlin or online for a full day dedicated to standards, legal requirements, and real-world implementation of accessible … Read more

Article February 12, 2026

PDF’s stakeholders and developers span the globe. Here, we visualize the community’s reach.

Article February 9, 2026

PDF Week Online brings together PDF’s technical community to advance industry projects. All members are welcome to attend!

Member News February 9, 2026

Learn how poorly structured tables impact PDF accessibility, screen reader navigation, and compliance with accessibility standards.

product February 9, 2026

An open-source, MIT-licensed PDF viewer for Svelte and SvelteKit. Choose between a drop-in component with a full UI or headless … Read more

Member News February 9, 2026

UPDF has launched its global #blossomwithupdf social media campaign, encouraging users to share how they enhance reading and note-taking productivity … Read more

Member News February 6, 2026

Learn what a scanned PDF is, why it is inaccessible, and how to convert it into an accessible PDF using … Read more

Page February 4, 2026

What is the U.S. TAG? A U.S. Technical Advisory Group (TAG) provides a mechanism for U.S. experts to participate in … Read more

Member News January 30, 2026

PDFix now offers automated font correction powered by callas software technology, enabling users to fix font issues that cause PDF/UA … Read more

Member News January 30, 2026

callas software gab heute den Start eines neuen Zertifizierungsprogramms bekannt.


September 15, 10:00 CET - September 16, 2025Hotel Steglitz International
Albrechtstr. 2, 12165 Berlin, GermanyPDF Days Europe 2025(Teasertext: Join us in Berlin for provocative presentations from the leaders in PDF technology!)PDF here, PDF there…. PDF everywhere!PDF Days Europe 2025 is the second event of the PDF Triathlon in 2025! It’s open to PDF Association members and non-members alike.Back by popular demand, September 2025 will be the first PDF Days Europe event since 2022. As usual, PDF Days Europe presentations are educational in nature (check out the presentation archive or our YouTube channel to get a sense of typical topics), with only one commercial slide permitted! They are presented by experts who participate in our technical communities, leaders in the development and application of PDF technology and many who also participate in ISO standards development.No matter your role; whether it be as a PDF or application developer, an integrator, product support, QA, product manager, policy maker, or end user, you’ll find new and relevant information for you at PDF Days Europe. Of course, there will also be lots of time for networking and opportunities to discuss specific solutions with sponsors.The event occurs September 15-16 at the SI Hotel in Berlin. PDF Days Europe tickets will include coffee, snacks and lunch on Monday and Tuesday, and dinner (including a raffle!) on Monday evening. Remote attendance is not offered.

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