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ISO/TS 32001

Extensions to Hash Algorithm Support in ISO 32000-2 (PDF 2.0)

This ISO Technical Specification (TS) document specifies how to extend the specifications in ISO 32000-2 (PDF 2.0) by adding support for the use of the Secure Hash Algorithm – 3 (SHA-3) and SHAKE256 hash algorithms.

ISO TS 32001 is now available at no cost!

As part of the PDF Association’s exclusive ISO 32000 bundle, this Technical Specification is available from the PDF Association at no cost thanks to sponsorship support provided by Adobe, Apryse and Foxit. Read the press-release.

Covers of 5 ISO standards in the ISO 32000-2 bundle.

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ISO/TS 32001 specifies how to extend PDF 2.0 by adding support for the use of the Secure Hash Algorithm – 3 (SHA-3) and SHAKE256 hash algorithms. This copy of ISO TS 32001 includes errata corrections as of July 24, 2024.

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Community: PDF Digital Signature TWG

ISO Group Responsible: ISO TC171 SC2 WG8

ISO Status: status of all PDF-related ISO work

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PDF 2.0 Extensions to PDF 2.0

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