Home of the worldwide PDF technical community
Our missionDelivering a vendor-neutral platform for developing open specifications and standards for PDF technology.
Our visionDriving the world’s digital document format into the 21st century and beyond.
Featured News
January 2026 by Patrick Gallot (Datalogics)
Join us for this webinar to discuss ideas for reinventing 3D PDFs. We’ll explore how to make 3D PDFs better, … Read more
Our Valued Members
Glossary of PDF acronyms and terms with lay-person definitions.
The definitive list of all ISO standards for PDF technology.
Current status of the ISO standards development work in the program of work for ISO TC 171 SC 2 and … Read more
Resolved errata against industry and ISO PDF-related publications.
ISO provides public access to various clauses of ISO publications including the Normative References clause through its Online Browsing Platform, … Read more
The PDF Association’s repositories in GitHub. Public repositories welcome contributions and comments from the public. Private repositories are restricted to … Read more
PDF’s stakeholders and developers span the globe. Here, we visualize the community’s reach.
Learn how poorly structured tables impact PDF accessibility, screen reader navigation, and compliance with accessibility standards.
UPDF has launched its global #blossomwithupdf social media campaign, encouraging users to share how they enhance reading and note-taking productivity … Read more
Learn what a scanned PDF is, why it is inaccessible, and how to convert it into an accessible PDF using … Read more
PDFix now offers automated font correction powered by callas software technology, enabling users to fix font issues that cause PDF/UA … Read more
callas software today announces the launch of a certification program for its software. The program allows experts to certify their … Read more
Home of the worldwide
PDF technical community
Featured News
January 2026 by Patrick Gallot (Datalogics)
Join us for this webinar to discuss ideas for reinventing 3D PDFs. We’ll explore how to make 3D PDFs better, … Read more
Our Valued Members
Glossary of PDF acronyms and terms with lay-person definitions.
The definitive list of all ISO standards for PDF technology.
Current status of the ISO standards development work in the program of work for ISO TC 171 SC 2 and … Read more
Resolved errata against industry and ISO PDF-related publications.
ISO provides public access to various clauses of ISO publications including the Normative References clause through its Online Browsing Platform, … Read more
The PDF Association’s repositories in GitHub. Public repositories welcome contributions and comments from the public. Private repositories are restricted to … Read more
PDF’s stakeholders and developers span the globe. Here, we visualize the community’s reach.
Learn how poorly structured tables impact PDF accessibility, screen reader navigation, and compliance with accessibility standards.
UPDF has launched its global #blossomwithupdf social media campaign, encouraging users to share how they enhance reading and note-taking productivity … Read more
Learn what a scanned PDF is, why it is inaccessible, and how to convert it into an accessible PDF using … Read more
PDFix now offers automated font correction powered by callas software technology, enabling users to fix font issues that cause PDF/UA … Read more
callas software today announces the launch of a certification program for its software. The program allows experts to certify their … Read more