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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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ISO 32000 (PDF)

PDF 2.0

ISO 32000 is the family of ISO standards that defines the core PDF specification for both PDF 1.7 and PDF 2.0.

ISO 32000-2 Document management Portable Document Format Part 1 PDF 2.0 cover with PDF Association logo


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The Matterhorn Protocol 1.1

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

Matterhorn Protocol 1.1 cover page


Stressful PDF Corpus

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.

Bell cure of PDF complexity.


PDF/UA Reference Suite 1.1

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

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veraPDF Test Suite

veraPDF is the industry-supported open-source validator for PDF/A-1, PDF/A-2 and PDF/A-3. The software was developed under the supervision of the PDF Association’s PDF Validation Technical Working Group. As of 2021 the PDF/A TWG continues to set policy for the test …

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Cal Poly Graphic Communications PDF/VT Test File Suite –1.0.1

The Cal Poly Graphic Communications PDF/VT Test File Suite provides a collection of four sets of graphically-rich, robust, valid PDF/VT files for testing and demonstrating products claiming support of consumption of files conforming to the ISO 16612-2 PDF/VT standard. The PDF Association …

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Isartor Test Suite

The Isartor Test Suite is named after the location of the first meeting of the Technical Working Group, a medieval gate towards the river Isar in the center of Munich/Germany. This test suite comprises a set of files which can …

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