PDF Association logo

Discover pdfa.org

Key resources

Get involved

How do you find the right PDF technology vendor?
Use the Solution Agent to ask the entire PDF communuity!
The PDF Association celebrates its members’ public statements
of support
for ISO-standardized PDF technology.

Member Area

Brotli compression coming to PDF

March 2025 by Peter Wyatt, Robin Watts

In October 2023, the PDF Association launched a public request for stakeholder feedback on aspects of PDF that could be usefully updated.

We explored various subjects at that event, including HDR, new color capabilities, new font technology, animation, accessibility, new 2D and 3D graphical formats, and improved compression methods. Although several of these are under active development today in the PDF Association’s Imaging Model TWG, this article deals with a new method for optimizing PDF file size.

Brotli, a compression algorithm developed by Google engineers, was originally intended for web use, and is broadly adopted in web browsers. When implemented in PDF Brotli compression can offer significant reductions in file-size. Learn more!

The PDF Association is a DARPA success story

October 2023 by PDF Association staff
PDF in the Wild


The PDF Association is perhaps DARPA’s smallest-ever prime contractor. For DARPA’s SafeDocs program, however, it’s also the biggest success story.

PDF Association logo
Visit PDF Association staff's profile.

September 2023 by Thomas Zellmann
Picture of Thomas Zellmann
Visit Thomas Zellmann‘s profile.

To encourage marketing staff to sign up for the PDF Technology Marketing Working Group we decided to record a recent … Read more

Article

September 2023 by PDF Association staff
PDF Association logo
Visit PDF Association staff‘s profile.

PDF Week in San Francisco this October is hosting a free industry Symposium on Advancing the PDF Imaging Model! There’s … Read more

Article

September 2023 by Apryse
Logo of Apryse
Visit Apryse‘s profile.

Read Riley Kooh’s vision for the future of PDF technology over the next 25 years.

Article

September 2023 by Peter Wyatt
Peter Wyatt
Visit Peter Wyatt‘s profile.

PDF developers everywhere have a new resource; targeted test cases highlighting differences between implementations.

PDF Association news

September 2023 by PDF Association staff
PDF Association logo
Visit PDF Association staff‘s profile.

Funky (but legit!) PDF, sneaky malware PDF, poisoned PDF, PDF for LEGO, NASA does PDF… it’s a wild PDF world … Read more

PDF in the Wild

August 2023 by Peter Wyatt
Peter Wyatt
Visit Peter Wyatt‘s profile.

The PDF Association’s PDF cheat sheets are designed to help developers work more efficiently. They are highly condensed summaries, with … Read more

Article

August 2023 by Duff Johnson
Duff Johnson
Visit Duff Johnson‘s profile.

The PDF industry mourns the passing of the Adobe founder and visionary whose inventions and insights led to the creation … Read more

Article

August 2023 by Peter Wyatt
Peter Wyatt
Visit Peter Wyatt‘s profile.

PDF is a large, complex specification! Developers often look for first steps in its implementation. This article offers some suggestions.

Article

August 2023 by PDF Association staff
PDF Association logo
Visit PDF Association staff‘s profile.

LLMs and generative artificial intelligence, as much (or more) than everything else computers can do, is subject to the iron … Read more

PDF in the Wild

July 2023 by Duff Johnson
Duff Johnson
Visit Duff Johnson‘s profile.

Overcoming ossification requires everyone to agree on the strategy and specific technical changes affecting all stakeholders.

Article

Member News

WordPress Cookie Notice by Real Cookie Banner