ISO/TS 32005:2023

Document management — Portable Document Format — PDF 1.7 and 2.0 structure namespace inclusion in ISO 32000-2

This document specifies containment requirements for tagged PDF documents that use the PDF 1.7 namespace and the PDF 2.0 namespace. These containment requirements extend, and entirely comply with, the rules and provisions already specified for tagged PDF documents within ISO 32000-2.

Gestion de documents — Format de document portable — Inclusion des espaces de noms de structures PDF 1.7 et 2.0 dans l'ISO 32000-2

General Information

• Status: Published
• Publication Date: 12-Jul-2023
• ICS: 35.240.30 - IT applications in information, documentation and publishing
• ICS: 37.100.99 - Other standards related to graphic technology
• Technical Committee: ISO/TC 171/SC 2 - Document file formats, EDMS systems and authenticity of information
• Drafting Committee: ISO/TC 171/SC 2 - Document file formats, EDMS systems and authenticity of information
• Current Stage: 6060 - International Standard published
• Start Date: 13-Jul-2023
• Due Date: 18-Mar-2024
• Completion Date: 13-Jul-2023

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 32005
First edition
2023-07
Document management — Portable
Document Format — PDF 1.7 and 2.0
structure namespace inclusion in ISO
32000-2
Gestion de documents — Format de document portable — Inclusion
des espaces de noms de structures PDF 1.7 et 2.0 dans l'ISO 32000-2
Reference number
ISO/TS 32005:2023(E)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO/TS 32005:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/TS 32005:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Declaration of conformance .2
5 Using the PDF 1.7 namespace with the PDF 2.0 namespace . 2
5.1 General . 2
5.2 PDF 1.7 as a standalone namespace . 2
5.3 Elements defined in both the PDF 1.7 and PDF 2.0 namespace . 3
5.4 Elements defined solely in the PDF 2.0 namespace . 3
5.5 Elements defined solely in the PDF 1.7 namespace . 3
5.5.1 General . 3
5.5.2 Permitted PDF 1.7 element types . 3
5.6 Role mapping . 5
6 Attributes . 5
6.1 General . 5
6.2 Attribute owners . 5
6.3 Attribute namespaces . 6
7 Parent-child relationships between the standard structure elements in the
standard structure namespace for PDF 2.0 and PDF 1.7. 6
7.1 General . 6
7.2 Hierarchical inclusion rules . 6
Bibliography .40
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/TS 32005:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 171, Document management applications,
Subcommittee SC 2, Document file formats, EDMS systems and authenticity of information.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
  © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/TS 32005:2023(E)
Introduction
ISO 32000-2 introduced the mechanism for defining namespaces within a logically structured PDF
document; identified two recognized namespaces for tagged PDF documents; and provided strict
hierarchical inclusion rules for the standard structure namespace for PDF 2.0. However, ISO 32000-2
did not specify restrictions and inclusion rules for the standard structure namespace for PDF 1.7. This
document extends the hierarchical inclusion rules to address both the standard structure namespace
for PDF 2.0 and the standard structure namespace for PDF 1.7.
The primary purpose of this document is to extend the rules already defined within ISO 32000-2 to
resolve any ambiguity.
v
© ISO 2023 – All rights reserved

---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/TS 32005:2023(E)
Document management — Portable Document Format
— PDF 1.7 and 2.0 structure namespace inclusion in ISO
32000-2
1 Scope
This document specifies containment requirements for tagged PDF documents that use the PDF 1.7
namespace and the PDF 2.0 namespace. These containment requirements extend, and entirely comply
with, the rules and provisions already specified for tagged PDF documents within ISO 32000-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 32000-1, Document management — Portable Document Format — Part 1: PDF 1.7
ISO 32000-2:2020, Document management — Portable document format — Part 2: PDF 2.0
PDF Declarations, PDF Association, September 5, 2019, https:// www .pdfa .org/ resource/ pdf
-declarations/
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 32000-2 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
PDF 1.7 namespace
standard structure namespace for PDF 1.7
3.2
PDF 2.0 namespace
standard structure namespace for PDF 2.0
3.3
PDF 1.7 element
standard structure element type defined in the namespace for PDF 1.7
3.4
PDF 2.0 element
standard structure element type defined in the namespace for PDF 2.0
3.5
unique PDF 1.7 element
standard structure element whose type is defined solely in the PDF 1.7 namespace (3.1)
1
© ISO 2023 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/TS 32005:2023(E)
4 Declaration of conformance
This document defines additional requirements that are fully compliant with ISO 32000-2. As such, a
PDF document can conform to all the requirements of ISO 32000-2 and the requirements defined in this
document, retaining compliance with both standards. However, not all files which are compliant with
ISO 32000-2 will be compliant with this document.
To enable interchange and to identify that a given PDF document conforms to the requirements defined
in this document, that PDF document may include a PDF declaration of conformance with this document.
When such a PDF declaration is present, it shall conform to the requirements of the PDF Declarations
specification. Such claim of conformance shall take the form described in Table 1.
Table 1 — Declaration of conformance to this document
Key Type
URI identifier https:// pdfa .org/ declarations #iso32005
Mandatory field(s) none
Standard ISO/TS 32005
Version 1
URI https:// www .pdfa .org/ resource/ ISO -32005/
Level N/A
Technology Reliance ISO 32000-2
EXAMPLE Conformance declaration for a PDF file conforming to this document:


 
  
   
    

© ISO #### – All rights reserved
ISO/TSDTS 32005:202x2023(E)
ISO TC 171/SC 2/WG 9
Secretariat: ANSI
Date: 2023-02-21
Document management — Portable Document Format — PDF 1.7 and 2.0 structure
namespace inclusion in ISO 32000--2

DTS stage

Warning for WDs and CDs
This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
change without notice and may not be referred to as an International Standard.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
To help you, this guide on writing standards was produced by the ISO/TMB and is available at
https://www.iso.org/iso/how-to-write-standards.pdf
A model manuscript of a draft International Standard (known as “The Rice Model”) is available at
https://www.iso.org/iso/model_document-rice_model.pdf

---------------------- Page: 1 ----------------------
© ISO 2020

---------------------- Page: 2 ----------------------
ISO /DTS 32005:202x2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no
part of this publication may be reproduced or utilized otherwise in any form or by any means,
electronic or mechanical, including photocopying, or posting on the internet or an intranet, without
prior written permission. Permission can be requested from either ISO at the address below or
ISO’sISO's member body in the country of the requester.
ISO copyright officeCopyright Office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Fax: [phone]
Email: [e-mail]
Email: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland.
2 © ISO #### – All rights reserved
ii © ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO /DTS 32005:202x2023(E)
Contents
Foreword . iv
Introduction. v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Declaration of Conformance . 2
5 Using the PDF 1.7 namespace with the PDF 2.0 namespace . 3
5.1 General . 3
5.2 PDF 1.7 as a standalone namespace . 3
5.3 Elements defined in both the PDF 1.7 and PDF 2.0 namespace . 3
5.4 Elements defined solely in the PDF 2.0 namespace . 3
5.5 Elements defined solely in the PDF 1.7 namespace . 3
5.5.1 General . 3
5.5.2 Permitted PDF 1.7 element types . 4
5.6 Role mapping . 6
6 Attributes . 6
6.1 General . 6
6.2 Attribute owners . 7
6.3 Attribute namespaces . 7
7 Parent-child relationships between the standard structure elements in the standard
structure namespace for PDF 2.0 and PDF 1.7 . 7
7.1 General . 7
7.2 Hierarchical inclusion rules . 7
Bibliography . 49
Foreword . 5
Introduction. 6
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Declaration of conformance . 2
5 Using the PDF 1.7 namespace with the PDF 2.0 namespace . 3
5.1 General . 3
5.2 PDF 1.7 as a standalone namespace . 3
5.3 Elements defined in both the PDF 1.7 and PDF 2.0 namespace . 3
5.4 Elements defined solely in the PDF 2.0 namespace . 3
5.5 Elements defined solely in the PDF 1.7 namespace . 4
5.5.1 General . 4
5.5.2 Permitted PDF 1.7 element types . 4
5.6 Role mapping . 6
© ISO #### – All rights reserved 3
© ISO 2023 – All rights reserved iii

---------------------- Page: 4 ----------------------
ISO /DTS 32005:202x2023(E)
6 Attributes . 6
6.1 General . 6
6.2 Attribute owners . 6
6.3 Attribute namespaces . 7
7 Parent-child relationships between the standard structure elements in the standard
structure namespace for PDF 2.0 and PDF 1.7 . 7
7.1 General . 7
7.2 Hierarchical inclusion rules . 7
Bibliography . 51

4 © ISO #### – All rights reserved
iv © ISO 2023 – All rights reserved

---------------------- Page: 5 ----------------------
ISO /DTS 32005:202x2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives 2 (see
www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received (see www.iso.org/patentswww.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 171, Document management applications,
Subcommittee SC 2, Document file formats, EDMS systems and authenticity of information.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at
www.iso.org/members.htmlwww.iso.org/members.html.
© ISO #### – All rights reserved 5
© ISO 2023 – All rights reserved v

---------------------- Page: 6 ----------------------
ISO /DTS 32005:202x2023(E)
Introduction
ISO 32000-2 introduced the mechanism for defining namespaces within a logically structured PDF
document; identified two recognisedrecognized namespaces for tagged PDF documents; and provided
strict hierarchical inclusion rules for the standard structure namespace for PDF 2.0. However, ISO
32000-2 did not specify restrictions and inclusion rules for the standard structure namespace for
PDF 1.7. This document extends the hierarchical inclusion rules to address both the standard structure
namespace for PDF 2.0 and the standard structure namespace for PDF 1.7.
The primary purpose of this document is to extend the rules already defined within ISO 32000-2 to
resolve any ambiguity.

6 © ISO #### – All rights reserved
vi © ISO 2023 – All rights reserved

---------------------- Page: 7 ----------------------
TECHNICAL SPECIFICATION ISO/DTS 32005:2023(E)

Document management — Portable Document Format — PDF 1.7
and 2.0 structure namespace inclusion in ISO 32000--2
1 Scope
This Technical Specificationdocument specifies containment requirements for tagged PDF documents
that use the PDF 1.7 namespace and the PDF 2.0 namespace. These containment requirements extend,
butand entirely comply with, the rules and provisions already specified for tagged PDF documents within
ISO 32000-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 32000-1:2008, Document management — Portable Document Format — Part 1: PDF 1.7
ISO 32000-2:2020, Document management — Portable Document Format — Part 2: PDF 2.0
PDF DECLARATIONS, P.D.F. PDF Association, September 5, 2019, https://www.pdfa.org/resource/pdf-
declarations/https://www.pdfa.org/resource/pdf-declarations/
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 32000-2 and the following
apply.
ISO and IEC maintain terminologicalterminology databases for use in standardization at the following
addresses:
— ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/https://www.electropedia.org/
3.1
PDF 1.7 namespace
standard structure namespace for PDF 1.7
3.2
PDF 2.0 namespace
standard structure namespace for PDF 2.0
3.3
PDF 1.7 element
standard structure element type defined in the namespace for PDF 1.7
© ISO 2023 – All rights reserved 1

---------------------- Page: 8 ----------------------
ISO/DTS 32005:2023(E)
3.4
PDF 2.0 element
standard structure element type defined in the namespace for PDF 2.0
3.5
unique PDF 1.7 element
standard structure element whose type is defined solely in the PDF 1.7 namespace (3.1)
4 Declaration of Conformanceconformance
This document defines additional requirements that are fully compliant with ISO 32000-2. As such, a PDF
document can conform to all the requirements of ISO 32000-2 and the requirements defined in this
document, retaining compliance with both standards. However, not all files which are compliant with
ISO 32000-2 will be compliant with this document.
To enable interchange and to identify that a given PDF document conforms to the requirements defined
in this document, that PDF document may include a PDF Declarationdeclaration of conformance with this
document. When such a PDF Declarationdeclaration is present, it shall conform to the requirements of
the PDF DeclarationDeclarations specification and that. Such claim of conformance shall take the form
described in Table 1.Table 1.
Table 1 1 — Declaration of Conformance for documents conformingconformance to this
standarddocument
Key Type
URI identifier https://pdfa.org/declarations#iso32005https://pdfa.org/declarations#iso32005
Mandatory field(s) none
Standard ISO/TS 32005
Version 1
URI https://www.pdfa.org/resource/ISO-
32005/https://www.pdfa.org/resource/ISO-32005/
Level N/A
Technology Reliance ISO 32000-2

EXAMPLE Conformance Declarationdeclaration for a PDF file conforming to this document:


 
  xmlns:pdfd="http://pdfa.org/declarations/">="https://pdfa.org/declarations/">
   
     
       

FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 32005
ISO/TC 171/SC 2
Document management — Portable
Secretariat: ANSI
Document Format — PDF 1.7 and 2.0
Voting begins on:
2023-03-07 structure namespace inclusion in ISO
32000-2
Voting terminates on:
2023-05-02
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTS 32005:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/DTS 32005:2023(E)
FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 32005
ISO/TC 171/SC 2
Document management — Portable
Secretariat: ANSI
Document Format — PDF 1.7 and 2.0
Voting begins on:
structure namespace inclusion in ISO
32000-2
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/DTS 32005:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/DTS 32005:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Declaration of conformance .2
5 Using the PDF 1.7 namespace with the PDF 2.0 namespace . 2
5.1 General . 2
5.2 PDF 1.7 as a standalone namespace . 2
5.3 Elements defined in both the PDF 1.7 and PDF 2.0 namespace . 3
5.4 Elements defined solely in the PDF 2.0 namespace . 3
5.5 Elements defined solely in the PDF 1.7 namespace . 3
5.5.1 General . 3
5.5.2 Permitted PDF 1.7 element types . 3
5.6 Role mapping . 5
6 Attributes . 5
6.1 General . 5
6.2 Attribute owners . 5
6.3 Attribute namespaces . 6
7 Parent-child relationships between the standard structure elements in the
standard structure namespace for PDF 2.0 and PDF 1.7. 6
7.1 General . 6
7.2 Hierarchical inclusion rules . 6
Bibliography .40
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/DTS 32005:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non­governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 171, Document management applications,
Subcommittee SC 2, Document file formats, EDMS systems and authenticity of information.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
  © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/DTS 32005:2023(E)
Introduction
ISO 32000-2 introduced the mechanism for defining namespaces within a logically structured PDF
document; identified two recognized namespaces for tagged PDF documents; and provided strict
hierarchical inclusion rules for the standard structure namespace for PDF 2.0. However, ISO 32000­2
did not specify restrictions and inclusion rules for the standard structure namespace for PDF 1.7. This
document extends the hierarchical inclusion rules to address both the standard structure namespace
for PDF 2.0 and the standard structure namespace for PDF 1.7.
The primary purpose of this document is to extend the rules already defined within ISO 32000-2 to
resolve any ambiguity.
v
© ISO 2023 – All rights reserved

---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/DTS 32005:2023(E)
Document management — Portable Document Format
— PDF 1.7 and 2.0 structure namespace inclusion in ISO
32000-2
1 Scope
This document specifies containment requirements for tagged PDF documents that use the PDF 1.7
namespace and the PDF 2.0 namespace. These containment requirements extend, and entirely comply
with, the rules and provisions already specified for tagged PDF documents within ISO 32000-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 32000­1,Document management — Portable Document Format — Part 1: PDF 1.7
ISO 32000­2:2020, Document management — Portable Document Format — Part 2: PDF 2.0
Declarations P.D.F. PDF Association, September 5, 2019, https:// www .pdfa .org/ resource/ pdf
­declarations/
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 32000-2 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
PDF 1.7 namespace
standard structure namespace for PDF 1.7
3.2
PDF 2.0 namespace
standard structure namespace for PDF 2.0
3.3
PDF 1.7 element
standard structure element type defined in the namespace for PDF 1.7
3.4
PDF 2.0 element
standard structure element type defined in the namespace for PDF 2.0
3.5
unique PDF 1.7 element
standard structure element whose type is defined solely in the PDF 1.7 namespace (3.1)
1
© ISO 2023 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/DTS 32005:2023(E)
4 Declaration of conformance
This document defines additional requirements that are fully compliant with ISO 32000-2. As such, a
PDF document can conform to all the requirements of ISO 32000-2 and the requirements defined in this
document, retaining compliance with both standards. However, not all files which are compliant with
ISO 32000­2 will be compliant with this document.
To enable interchange and to identify that a given PDF document conforms to the requirements defined
in this document, that PDF document may include a PDF declaration of conformance with this document.
When such a PDF declaration is present, it shall conform to the requirements of the PDF Declarations
specification. Such claim of conformance shall take the form described in Table 1.
Table 1 — Declaration of conformance to this document
Key Type
URI identifier https:// pdfa .org/ declarations #iso32005
Mandatory field(s) none
Standard ISO/TS 32005
Version 1
URI https:// www .pdfa .org/ resource/ ISO ­32005/
Level N/A
Technology Reliance ISO 32000­2
EXAMPLE Conformance declaration for a PDF file conforming to this document: