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ISO standards, test suites, best-practice guides…

The PDF Association publishes a variety of documents and other resources for those interested in leveraging PDF technology, and as of Q4 2021, also sells the ISO standards relating to PDF technology as developed by ISO TC 171 SC 2.

In addition to formal ISO standards many PDF Association publications developed through our publications process are freely available.

PDF Association members may access process documents and drafts of upcoming ISO standards via the Member Area.

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PDF cheat sheets are quick-reference tools to help developers work more efficiently while ensuring that their knowledge of PDF is technically correct.

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Normative references of ISO 32000-2:2020

To help implementers locate the latest information, the PDF Association maintains a page of links to current versions of documents normatively referenced from ISO 32000-2:2020.



Adobe documents referenced from ISO 32000-2:2017

A number of documents, originally published by Adobe Systems, are normatively referenced from ISO 32000-2:2017. Adobe has made these documents freely available, and has asked the PDF Association to host them.



Technical Note 0010: Clarifications of ISO 19005, parts 1-3 for developers of PDF/A creators and validators

TechNote 0010 offers ISO TC 171 SC 2 WG 5-reviewed and industry-supported clarifications of ISO 19005, parts 1-3 for developers of PDF/A creators and validators.



PDF/A-1 Technical Notes – Origins

Prior to development of the Isartor Test Suite, the PDF/A Competence Center Technical Working Group (TWG) led the way in development of best practices and other tools to support ISO standards for mainstream PDF technology. Between April, 2007 and March …



Technical Note 0009: XMP Extension Schemas in PDF/A-1

This TechNote explains how to construct an XMP extension schema for PDF/A-1.



Technical Note 0008 – Predefined XMP Properties in PDF/A-1

This TechNote lists all XMP schemas and properties which are allowed in PDF/A-1. Most importantly, it covers the predefined XMP schemas for use in PDF/A-1. In addition to providing a convenient summary, it also contains notes and recommendations regarding the …



Technical Note 0003 – Metadata in PDF/A-1

PDF/A-1 imposes certain requirements and restrictions on document metadata in a compliant PDF/A-1 file where certain information is required to be encoded as XMP metadata, while corresponding entries in the document information dictionary for a document may be present but …



Technical Note 0001 – PDF/A-1 and Namespaces

A PDF/A-1 file must be identified as such by the presence of a certain entry in its XMP document metadata. This technical note discusses the implicit provisions and the wording inaccuracies in the standard.



Technical Note 0006 – Digital Signatures in PDF/A-1

Digital signatures are primarily used to check the integrity of the signed part of the document. They also can be used to authenticate the signer¬ís identity and determine the time of signing. The concept of digital signatures was introduced in …



Technical Note 0002 – Color in PDF/A-1

The PDF/A-1 requirements related to color handling may be confusing to users and developers who are not familiar with color management concepts and ICC profiles. This TechNote describes the affected objects in PDF, details the requirements of PDF/A-1 with respect …