ISO TS 32005-2023 PDF

Full title and description

ISO/TS 32005:2023 — Document management — Portable Document Format — PDF 1.7 and 2.0 structure namespace inclusion in ISO 32000-2. A Technical Specification that defines containment and namespace requirements for tagged PDF documents that use the PDF 1.7 and PDF 2.0 structure namespaces, and explains how those namespaces are included and handled within the ISO 32000-2 (PDF 2.0) framework.

Abstract

This Technical Specification specifies containment requirements for tagged PDF documents that make use of the PDF 1.7 namespace and the PDF 2.0 namespace. The requirements extend, and fully comply with, the tagging and structure rules already defined in ISO 32000-2, providing guidance for inclusion of structure namespaces so that tagged PDFs remain conformant and interoperable across PDF 1.7 and PDF 2.0 implementations.

General information

• Status: Published (Technical Specification).
• Publication date: 13 July 2023.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 35.240.30; 37.100.99.
• Edition / version: Edition 1 (2023).
• Number of pages: 40.

Scope

ISO/TS 32005:2023 covers containment and namespace rules for tagged PDF structure elements when using either the PDF 1.7 namespace or the PDF 2.0 namespace. It clarifies how structure namespace identifiers are included in PDF files and how such usage relates to the tagging, structure trees and conformance rules in ISO 32000-2 (PDF 2.0). The specification is intended to ensure consistent handling of structure namespaces so that tagged documents remain interoperable between implementations that target PDF 1.7 and PDF 2.0.

Key topics and requirements

• Containment requirements for tagged PDF documents that reference PDF 1.7 and PDF 2.0 structure namespaces.
• Rules for inclusion and declaration of structure namespaces in the document structure tree.
• How namespace usage aligns with and extends the tagging and structure provisions of ISO 32000-2.
• Guidance for authors and PDF processors to maintain conformance and interoperability across PDF versions.
• Conformance considerations and recommendations for PDF writers and PDF readers that handle namespace-qualified structure elements.
• Clarification of expected behavior when both PDF 1.7 and PDF 2.0 namespace constructs appear in a tagged PDF.

Typical use and users

Primary users include developers of PDF creation and processing software (PDF writers and readers), accessibility specialists and practitioners working with tagged PDFs, document management and preservation professionals, publishers, and organizations that need interoperable structured PDF content across different PDF versions. The specification is used to inform implementation, testing and quality assurance of tagging and structure-handling features in PDF tools.

Related standards

ISO/TS 32005:2023 is part of the ISO 32000 family of PDF standards and is closely related to ISO 32000-2 (PDF 2.0) and ISO 32000-1 (PDF 1.7). Other related Technical Specifications and documents in the PDF family include ISO/TS 32001, ISO/TS 32002, ISO/TS 32003 (PDF encryption / AES-GCM extensions) and ISO/TS 32004. It also complements document accessibility and archival standards such as ISO 14289 (PDF/UA) and the PDF/A series (ISO 19005) where tagged structure and namespace handling affect accessibility and long-term preservation.

Keywords

tagged PDF; structure namespace; PDF 1.7; PDF 2.0; ISO 32000-2; containment requirements; PDF writers; PDF readers; accessibility; document management; interoperability; conformance.

FAQ

Q: What is this standard?

A: ISO/TS 32005:2023 is a Technical Specification that defines containment and structure-namespace inclusion requirements for tagged PDF documents using the PDF 1.7 and PDF 2.0 namespaces, to be interpreted within the ISO 32000-2 framework.

Q: What does it cover?

A: It covers how structure namespaces from PDF 1.7 and PDF 2.0 are declared and contained inside tagged PDF documents, the rules for their use in the structure tree, and guidance to ensure documents remain conformant and interoperable with ISO 32000-2.

Q: Who typically uses it?

A: Implementers and developers of PDF creation and processing software (PDF writers/readers), accessibility engineers, document management and archiving professionals, publishers, and QA teams responsible for ensuring correct tagging and structure handling.

Q: Is it current or superseded?

A: It was published on 13 July 2023 and is current as a Technical Specification. ISO has indicated a related document (ISO/DTS 32005) is under development as the next stage in the lifecycle and may replace or update this TS in due course; users should check for any newer revisions or replacements when implementing.

Q: Is it part of a series?

A: Yes. It is part of the ISO 32000 family of standards that define PDF (including ISO 32000-2 for PDF 2.0 and ISO 32000-1 for PDF 1.7) and is associated with other PDF-related Technical Specifications (for example ISO/TS 32001–32004) and related accessibility/archival standards such as PDF/UA (ISO 14289) and the PDF/A series.

Q: What are the key keywords?

A: Tagged PDF, structure namespace, PDF 1.7, PDF 2.0, ISO 32000-2, containment requirements, interoperability, conformance, accessibility.