ISO/TS 32007:2024

Technical
Specification
ISO/TS 32007
First edition
Document management —
2024-04
Portable Document Format —
RichMedia annotations conforming
to glTF assets
Gestion de documents — Portable Document Format —
Annotations RichMedia conformes aux actifs glTF
Reference number
© ISO 2024
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 RichMedia annotations with glTF assets . 2
4.1 Document Requirements .2
4.1.1 General .2
4.1.2 Requirement types .2
4.1.3 glTF requirement .2
4.1.4 Identifying glTF 3D Artwork in a requirement dictionary . .2
4.2 glTF assets .3
4.2.1 General .3
4.2.2 Embedded assets . .3
4.3 RichMediaInstances.3
4.3.1 General .3
4.3.2 New Scene entry in a RichMediaInstance dictionary .3
4.4 3D views .4
4.4.1 General .4
4.4.2 Changes to the MS key in a 3D view dictionary .4
4.5 3D node dictionaries .4
4.5.1 General .4
4.5.2 Changes to the N key in a 3D node dictionary.4
4.6 RichMediaAnimation dictionary .5
4.6.1 General .5
4.6.2 New AO entry in a RichMediaAnimation dictionary .5
4.7 Metadata .5
4.8 Marking the Extension Level in PDF .6
Bibliography . 7

iii
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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
Introduction
0.1  PDF: ISO 32000
ISO 32000-2 can embed 3D Computer-aided design (CAD) models as either 3D or RichMedia annotations.
3D node, stream and view dictionaries can only reference data saved in either the ECMA-363 [Universal 3D
(U3D) file format] or ISO 14739-1 [the Product Representation Compact (PRC) file format]. This can require
the authoritative CAD data to be translated to either U3D or PRC solely to embed the data in a PDF file.
0.2  glTF: ISO/IEC 12113
glTF is an open, royalty-free 3D asset delivery format designed and managed by the Khronos Group, which is
a Standards Developing Organization (SDO).
The specification for glTF 2.0 is published as ISO/IEC 12113:2022.
0.3  Extending PDF to support glTF
The purpose of this document is to extend the PDF specification to allow RichMedia annotations to include
3D artworks saved in the glTF format.

v
Technical Specification ISO/TS 32007:2024(en)
Document management — Portable Document Format —
RichMedia annotations conforming to glTF assets
1 Scope
This document specifies how to extend the ISO 32000-2 specification by adding the ISO/IEC 12113 (glTF)
format as a valid format for 3D artworks contained in a RichMedia annotation. It is intended for:
— developers of software that creates PDF files (PDF writers);
— software that reads existing PDF files and usually interprets their contents for display (PDF readers);
— software that reads and displays PDF content and interacts with the computer users to modify and save
the PDF file (PDF processors);
— PDF products that read and/or write PDF files for a variety of other purposes (PDF processors).
NOTE PDF writers and PDF readers are more specialized classifications of PDF processors.
This document does not specify the following:
— specific processes for converting paper or electronic documents to the PDF file format;
— specific technical design, user interface implementation, or operational details of rendering;
— specific physical methods of storing these documents such as media and storage conditions;
— methods for validating the conformance of PDF files or PDF processors;
— required computer hardware or operating systems.
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/IEC 12113:2022, Information technology — Runtime 3D asset delivery format — Khronos glTF™ 2.0
ISO 32000-2:2020, Document management — Portable document format — Part 2: PDF 2.0
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/

3.1
Portable Document Format file
PDF file
contiguous stream of binary data that conforms to ISO 32000-2:2020
[SOURCE: ISO 32000-2:2020, 3.50, “this document” has been replaced by "ISO 32000-2:2020” in the
definition.]
3.2
glTF
3D asset delivery format
Note 1 to entry: See ISO/IEC 12113:2022, 2.3 for further details.
3.3
glTF asset
file constituting a single glTF asset
Note 1 to entry: See ISO/IEC 12113:2022, 2.4 for further details.
4 RichMedia annotations with glTF assets
4.1 Document Requirements
4.1.1 General
Document requirements identify PDF features that are required for the correct handling of a document.
Requirements are stored as requirement dictionaries (see ISO 32000-2:2020, 12.11).
4.1.2 Requirement types
As described in ISO 32000-2:2020, 12.11.2, the S entry in a requirement dictionary identifies a feature of the
PDF language or a capability that may be present in a PDF processor.
4.1.3 glTF requirement
ISO 32000-2:2020, Table 275 lists requirement types that have been defined through PDF 2.0. Table 1 shows
a new key, glTF, specifying that a glTF RichMedia annotation is stored in a PDF file.
Table 1 — Addition to requirement types in ISO 32000-2:2020, Table 275
Type Description
glTF Requires support for RichMedia annotations (ISO 32000-2:2020, 13.7.2.2) which shall be
in accordance with ISO/IEC 12113:2022. This also includes support for associated ECMAS-
cripts.
If a V key is present in its Requirements dictionary, it shall represent the version of the
glTF data in the PDF file and not the PDF version.
4.1.4 Identifying glTF 3D Artwork in a requirement dictionary
PDF files containing RichMedia annotations with assets conforming to the glTF specification shall have a
Requirements dictionary containing an S key with the value of glTF.
A V key in a requirement dictionary is used to specify the version number for a specific technology related to
the requirement in question (see ISO 32000-2:2020, 12.11.4).
RichMedia annot
...