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Figurative representation of the future PDF specification.
SafeDocs Phase 3: Revolutionizing file format specifications, beginning with PDF

DARPA will provide seed funding of $1.3M for research and prototyping centered on reinventing the PDF specification and delivering on the benefits of defining file …

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MACs vs. signatures in PDF

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

A signed document delivered via computer.


ISO 32004: an overview

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.

Schematic of an ISO/DTS 32004 MAC in context.


Introducing non-rectangular links to PDF

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.

Screen-shot of long Table of Contents entries line wrapping with Link annotation QuadPoints boundaries highlighted.


PDF 2.0 adds STEP 3D model support

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

Engineering drawing and finished piece.


Introducing the PDF Forms TWG

The PDF Association’s new PDF Forms Technical Working Group (TWG) is advancing PDF Forms technologies through the introduction of new declarative models with integrated semantics.

A fillable form


ISO Liaison Update for July, 2020

This article provides information about virtual ISO meetings during which PDF proper, PDF/A, PDF/X and PDF/VT were discussed. ISO committees are TC 171 and TC 130, the meetings took place between June 15 and 18, 2020. A public status page …

ISO meeting