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
April 2026 by Peter Wyatt
Different PDF SDKs can produce inconsistent validation results due to hidden assumptions and simplified APIs, making careful API selection essential … Read more
Our Valued Members
Accessible PDFs are more than a compliance requirement. They provide the semantic structure that AI systems and search engines need … Read more
Dual Lab announces a new update 1.8 to PDF4WCAG, delivering further improvements in validation accuracy, user experience, and overall stability.
Founded in San Diego in 1991, Solimar Systems celebrates its 35th anniversary serving thousands of global customers—including Fortune 100 companies—with … Read more
Different PDF SDKs can produce inconsistent validation results due to hidden assumptions and simplified APIs, making careful API selection essential … Read more
callas software will be exhibiting at FESPA Global Print Expo for the first time. Visitors to Europe’s leading trade fair … Read more
axes4 Day 2026 brought together 18 speakers and a growing community in Berlin for a full day of document accessibility … Read more
callas software announced its partnership with Databrand, a Brazilian reseller and integrator, to strengthen its presence in Brazil and support … Read more
UPDF 2.5 launches on Product Hunt as the first PDF editor powered by autonomous AI agents, transforming document workflows with … Read more
Crawford Technologies announced the availability of IntelliMerge PRO, a workflow consolidation solution designed to optimize communication production. IntelliMerge PRO provides … Read more
UPDF’s new version 2.5 introduces 10 powerful AI agents designed to significantly enhance document digitalization, highlighting UPDF’s ongoing commitment to … Read more
Developers rarely begin a project by asking for a PDF. They begin with something more specific. The PDF is simply … Read more
The latest release of Adobe PDF Library (APDFL) v18.0.5PlusP2a introduces important enhancements for developers focused on secure, standards-compliant document workflows, … Read more
Home of the worldwide
PDF technical community
Featured News
April 2026 by Peter Wyatt
Different PDF SDKs can produce inconsistent validation results due to hidden assumptions and simplified APIs, making careful API selection essential … Read more
Our Valued Members
Accessible PDFs are more than a compliance requirement. They provide the semantic structure that AI systems and search engines need … Read more
Dual Lab announces a new update 1.8 to PDF4WCAG, delivering further improvements in validation accuracy, user experience, and overall stability.
Founded in San Diego in 1991, Solimar Systems celebrates its 35th anniversary serving thousands of global customers—including Fortune 100 companies—with … Read more
Different PDF SDKs can produce inconsistent validation results due to hidden assumptions and simplified APIs, making careful API selection essential … Read more
callas software will be exhibiting at FESPA Global Print Expo for the first time. Visitors to Europe’s leading trade fair … Read more
axes4 Day 2026 brought together 18 speakers and a growing community in Berlin for a full day of document accessibility … Read more
callas software announced its partnership with Databrand, a Brazilian reseller and integrator, to strengthen its presence in Brazil and support … Read more
UPDF 2.5 launches on Product Hunt as the first PDF editor powered by autonomous AI agents, transforming document workflows with … Read more
Crawford Technologies announced the availability of IntelliMerge PRO, a workflow consolidation solution designed to optimize communication production. IntelliMerge PRO provides … Read more
UPDF’s new version 2.5 introduces 10 powerful AI agents designed to significantly enhance document digitalization, highlighting UPDF’s ongoing commitment to … Read more
Developers rarely begin a project by asking for a PDF. They begin with something more specific. The PDF is simply … Read more
The latest release of Adobe PDF Library (APDFL) v18.0.5PlusP2a introduces important enhancements for developers focused on secure, standards-compliant document workflows, … Read more