The new PDF/UA Processor LWG’s mission is to establish principles and a framework, and then develop requirements for PDF/UA processors and assistive technology (AT).

Matthias Valvekens explains the difference and respective value of digital signatures vs. MAC-based technology for authenticating PDF files.

Matthias Valvekens, the ISO project leader who led development of ISO 32004, has written a pair of blog posts to explain what ISO 32004 does and does not achieve in leveraging MAC technology for securing encrypted PDF files against tampering.

Tagged PDF is becoming increasingly common. On #GAAD 2022, PDF/UA’s ISO Project Leader takes stock of the progress and highlights what remains.

The PDF Association has updated IANA’s MIME media types registry for FDF, XFDF, PRC and U3D.

Martin Bailey reflects on the history of PDF/X and its impact on production printing and the exchange of documents in PDF workflows.

Non-rectangular links are coming to PDF 2.0! This article offers some background to link technology in PDF and discusses the forthcoming Extension to PDF 2.0.

With the publication of ISO/TS 24064 PDF 2.0 now supports three 3D formats: U3D, PRC and STEP.

This post provides a quick overview of PDF/UA that explains what PDF/UA is, why it should be used, what is important and how to create PDF/UA documents.

Dov Isaacs discusses the issues and opportunities that the print publishing industry faces and how the PDF/X standard can help the industry in this installment of the ‘Twenty Years of PDF/X’.