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About the contributor
Duff Johnson

A veteran of the electronic document space, Duff Johnson is an independent consultant. He is Executive Director of the PDF Association and ISO Project co-Leader (and US TAG chair) for ISO 32000 and ISO 14289.
More contributions
The Power of the Page

It’s a question that vexes vendors of web-based solutions everywhere: why do people still insist on PDF files? And why does PDF’s mindshare keep going up? “PDF is such antediluvian technology!” they say. “It’s pre-web, are you kidding me? It’s so old-f …

PDF Association technical resources: an overview

PDF is PDF because files produced with one vendor’s software can be read using a different vendor’s software with no loss of fidelity. Interoperability is key to our industry. The PDF Association is a international membership organization dedicated to …

2022: The last year of paper for records-keeping

NARA (The National Archives and Records Administration) is the final depository for the long-term records generated by all other agencies of the U.S. Federal Government. The agency has a key role in preserving the cultural history of the republic as we …

PDF 2.0 examples now available

The PDF Association is proud to present the first PDF 2.0 example files made available to the public. Created and donated to the PDF Association by Datalogics, this initial set of PDF 2.0 examples were crafted by hand and intentionally made simple in construction to serve as teaching tools for learning PDF file structure and syntax.

PDF 2.0 interops help vendors

The PDF 2.0 interop workshops included many vendors with products for creating, editing and processing PDF files. They came together in Boston, Massachusetts for a couple of days to test their own software against 3rd party files.

How to Implement PDF/A


The impetus for PDF/A, the archival form of PDF, came from the U.S. Federal Courts, the U.S. Library of Congress and the U.S. National Archives and Records Administration.

They were concerned about the cost and maintenance of a collection of non-standard PDFs, files that don’t meet the basic promise of PDF to look the same in all places and on all systems.

This article introduces five general principles for PDF/A implementations.


Tags: U.S. Federal Courts, U.S. Library of Congress, U.S. National Archives and Records Administration, archive
Categories: Archives & Libraries, Government, PDF/A