This page provides external links to legacy Adobe PDF references and errata, as well as the ISO 32000 family of standards. PDF Version Year Reference Documents Adobe PDF 1.0 1993 Portable Document Format Reference Manual Version 1.0 (ISBN 0–201–62628–4) Adobe …

The Matterhorn Protocol, a free publication, identifies all possible ways to fail PDF/UA-1.

This document summarizes exactly where PDF creators should add XMP metadata to PDF objects, and thus where PDF processors should search for it.

Understanding the problems faced by diverse parsers can be a great learning experience. The “Issue Tracker” corpus of stressful PDF files was originally developed under the DARPA-funded “SafeDocs” program.

ISO 32000-2:2020 is the current version of the PDF specification. It was developed by the volunteers of ISO TC 171 SC 2 WG 8.

The Solution Agent is a free service for the industry to provide organizations and individuals with a unique, vendor-neutral platform to begin their search

The PDF/UA Reference Suite is a resource for software developers and practitioners interested in best-practices for creating tagged and accessible PDF files

PDF in Manufacturing includes a high-level introduction to the wide range of manufacturing-relevant technologies built into the PDF format.

To help implementers stay current the PDF Association maintains a page of links to current versions of documents normatively referenced from ISO 32000-2:202x.

PDF Declarations facilitate a machine-readable notification that a PDF file (and/or its contents) conform to a given 3rd party specification.