Articles

We were asked to investigate non-functional internal document (intra-document) hyperlinks in PDFs stored on Google Drive and viewed with Google’s Preview. Here’s … Read more

Experience since PDF/UA-1 was published has revealed that some rules were too prescriptive. In some situations the semantic significance of an image … Read more

PDF has long relied on Flate for general-purpose data compression. Today, Brotli has emerged as a promising new approach that could significantly … Read more

This article explains the options in allowing, limiting, and/or preventing data scraping from occurring when AI and text data mining tools are … Read more

In support of the International Archives Week theme and its four subthemes, the PDF Association is announcing its forthcoming Best Practice Guide … Read more

Announcing the Monday keynote speaker for PDF Days Europe 2025, the new poster sessions and Peter Wyatt’s PDF Workshop!

What does it take to build the organizational skills and resources necessary to succeed in ensuring PDF documents are accessible?

Brotli compression is coming soon to PDF 2.0, enabling smaller file sizes. Sample PDF files are available to kickstart development!

This article explores how ISVs can use PDF/R to improve imaging application software’s efficiency, reduce development complexity, and enhance customer satisfaction.

Google’s Jpegli promises smaller JPEG images (and so, smaller PDF files) with no change to reader software! Check it out for yourself!

What’s the smallest possible fully compliant and validatable PDF file? We set out to answer the question.

Triggered by our own experience in preparing the cheat sheet collection, this article explores the capabilities of PDF collections and strengthens the … Read more

Most people searching for “pdf” are interested in a document, not the file format. Google Trends data offers a window into past … Read more

The PDF Association looks back at industry activities, events and accomplishments in 2024.

We’ve established a new public GitHub repository to allow anyone to log and discuss issues and requests against PDF Association publications.

In 2021, not a single tested implementation passed this test. 3 years later about three-quarters of viewers we checked now render the … Read more

Accessibility considerations for digital content aren’t limited to navigation, reading and interaction. Users also need to be able to archive, comment, redact, … Read more

This PDF-UX article offers an overview of bookmarks and suggests considerations and general best practices for every PDF author, and some thoughts … Read more