DRAFT INTERNATIONAL STANDARD
ISO/DIS 24517-2.2
ISO/TC 171/SC 2 Secretariat: ANSI
Voting begins on: Voting terminates on:
2017-01-25 2017-04-19
Document management — Engineering document format
using PDF —
Part 2:
Use of ISO 32000-2 including support for long-term
preservation (PDF/E-2)
Gestion de documents — Format de documents d’ingénierie utilisant le PDF
ICS: 35.240.30; 37.100.99
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 24517-2.2:2017(E)
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. ISO 2017
---------------------- Page: 1 ----------------------
ISO/DIS 24517-2.2:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 24517-2.2:2017(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Notation ......................................................................................................................................................................................................................... 2

5 Conformance ............................................................................................................................................................................................................. 3

5.1 General ........................................................................................................................................................................................................... 3

5.2 Conforming processor ...................................................................................................................................................................... 3

6 Technical requirements ................................................................................................................................................................................ 3

6.1 File structure ............................................................................................................................................................................................ 3

6.1.1 General...................................................................................................................................................................................... 3

6.1.2 File header ............................................................................................................................................................................. 4

6.1.3 File trailer .................. .................................................... ......................................................................................................... 4

6.1.4 Cross reference table .................................................................................................................................................... 4

6.1.5 Document information dictionary .................................................................................................................... 4

6.1.6 String objects ...................................................................................................................................................................... 4

6.1.7 Stream objects .................................................................................................................................................................... 4

6.1.8 Name objects ....................................................................................................................................................................... 5

6.1.9 Indirect objects .................................................................................................................................................................. 5

6.1.10 Inline image dictionaries .......................................................................................................................................... 5

6.1.11 Linearized PDF .................................................................................................................................................................. 5

6.1.12 Permissions .......................................................................................................................................................................... 5

6.1.13 Document catalog dictionary ................................................................................................................................ 5

6.2 Graphics ........................................................................................................................................................................................................ 6

6.2.1 General...................................................................................................................................................................................... 6

6.2.2 Content streams................................................................................................................................................................ 6

6.2.3 Output intent ....................................................................................................................................................................... 6

6.2.4 Colour spaces ...................................................................................................................................................................... 7

6.2.5 Extended graphics state............................................................................................................................................. 9

6.2.6 Flatness .................................................................................................................................................................................... 9

6.2.7 Images ....................................................................................................................................................................................10

6.2.8 XObjects ................................................................................................................................................................................11

6.2.9 Transparency ...................................................................................................................................................................11

6.2.10 Fonts ........................................................................................................................................................................................11

6.3 Annotations.............................................................................................................................................................................................14

6.3.1 Annotation types ..........................................................................................................................................................14

6.3.2 Annotation dictionaries ..........................................................................................................................................14

6.3.3 Annotation appearances ........................................................................................................................................14

6.3.4 Display of annotation contents .........................................................................................................................15

6.3.5 RichMedia Annotations, 3D Annotations and Content ................................................................15

6.4 Interactive forms ................................................................................................................................................................................15

6.4.1 General...................................................................................................................................................................................15

6.4.2 XFA forms ............................................................................................................................................................................15

6.4.3 Digital signatures ...................................................................... ....................................................................................16

6.5 Actions .........................................................................................................................................................................................................16

6.5.1 General...................................................................................................................................................................................16

6.5.2 Trigger events ..................................................................................................................................................................16

6.5.3 Handling of GoToR, GoToE, URI and SubmitForm actions ........................................................16

6.5.4 Handling of JavaScript actions ..........................................................................................................................17

6.6 Metadata ....................................................................................................................................................................................................17

6.6.1 General...................................................................................................................................................................................17

6.6.2 Metadata streams .........................................................................................................................................................17

6.6.3 Version and conformance level identification .....................................................................................17

6.6.4 File identifiers .................................................................................................................................................................18

6.6.5 File provenance information ..............................................................................................................................18

6.7 Embedded files ....................................................................................................................................................................................19

6.8 Optional content .................................................................................................................................................................................20

6.9 Use of alternate presentations and transitions ........................................................................................................21

6.10 Document requirements ..............................................................................................................................................................21

6.11 Print scaling ............................................................................................................................................................................................21

6.12 3D ....................................................................................................................................................................................................................21

6.12.1 General...................................................................................................................................................................................21

6.12.2 Display of 3D annotations .....................................................................................................................................21

6.12.3 Supported 3D formats ..............................................................................................................................................21

6.12.4 3D ECMAScript ...............................................................................................................................................................22

6.13 Geospatial .................................................................................................................................................................................................22

6.14 Measurement Properties .............................................................................................................................................................22

Annex A (normative) Requirements for secured PDF/E (PDF/E-2s) ...............................................................................23

Annex B (normative) Requirements for restricted attachments in PDF/E (PDF/E-2r) ...............................24

Bibliography .............................................................................................................................................................................................................................25

iv © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/DIS 24517-2.2:2017(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. 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. 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 on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 171.

ISO 24517-2 was prepared by Technical Committee ISO/TC 171, Document management applications,

Subcommittee SC 2, Document file formats, EDMS systems and authenticity of information. A list of all

parts of ISO 24517 can be found on the ISO website.
© ISO 2017 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO/DIS 24517-2.2:2017(E)
Introduction

ISO 24517 (all parts) defines a file format known as PDF/E which provides a mechanism for the exchange

and archiving of engineering documents based on the PDF format for various communities working

with engineering documentation. PDF/E files preserve the visual representation of engineering data

over time, independent of the tools and systems used for creating, storing or rendering the files.

It is a multi-part standard with subsequent parts expected to address future workflow and data

requirements. This standard improves document exchange, collaboration, and print accuracy within

engineering workflows, both inside companies and with extended enterprises of partners, suppliers,

customers, government organisations, and citizens. It enables organisations to streamline engineering

workflows that incorporate diverse sets of complex documents, resulting in improved productivity

and the ability to more quickly deliver better products to market. It defines the features of PDF that

are required, recommended, restricted, or prohibited when creating, viewing, marking up, printing,

analysing, distributing and archiving engineering documents. It takes into consideration the differing

needs of both interactive and non-interactive PDF processors.

ISO 24517 specifies the proper use of PDF for on-screen display and printing of engineering documents.

Engineering documents are assemblies of a page (or pages) created by different organisations, which

can be inter-departmental or inter-company. It also defines a framework for representing the logical

structure and other semantic information of engineering documents within conforming files.

PDF/E allows engineering professionals to reliably create, exchange, and review engineering

documentation, including large format documents. PDF/E enables organisations to work more

effectively when creating or exchanging engineering documentation.

This document is intended to lead to the development of various applications that read, render,

write and validate conforming files. Different applications will incorporate various capabilities to

prepare, interpret and process conforming files based on needs as perceived by the suppliers of those

applications. The inclusive, feature-rich nature of the format requires that additional constraints be

placed on its use to make it suitable for engineering workflow documents. However, it is important to

note that a conforming application needs to be able to read and process appropriately all files complying

with a specified conformance level.

This document introduces two new conformance levels: a “Restricted Attachments” conformance level,

otherwise referred to as PDF/E-2r and an “Secured Document” conformance level, otherwise referred

to as PDF/E-2s. PDF/E-2 documents are not permitted to be encrypted in order to enable proper

archiving, however, there are some engineering workflows where content needs to be encrypted in

order to protect the rights of the authors. For this particular use case, a user may choose to use the

PDF/E-2s conformance level.

This document extends the capabilities of Part 1. It is based on PDF version 2.0 (as defined in

ISO 32000-2) rather than PDF version 1.6 (which is used as the basis of Part 1). These added capabilities

are through compliance with ISO 32000-2 and include features such as:
— Support for numerous enhancements to 3D including support for PRC
— Support for Geospatial information (GIS) in both 2D and 3D

The following terms, referring to this specification or parts thereof, are recommended when the full

ISO name is not being used:
— “PDF/E” – a synonym for the ISO 24517 family of standards;
— “PDF/E-1” – a synonym for ISO 24517-1;
— “PDF/E-2” – a synonym for ISO 24517-2.

This document (in conjunction with its normative references) provides sufficient information to

interpret any conforming PDF/E-2 file.
vi © ISO 2017 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/DIS 24517-2.2:2017(E)

The PDF Association may maintain an ongoing series of application notes for guiding developers

and users of this document. These application notes are available at http:// www .pdfa .org/ . The PDF

Association will also retain copies of the specific non-ISO normative references of this document which

are publicly available electronic documents.
© ISO 2017 – All rights reserved vii
---------------------- Page: 7 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 24517-2.2:2017(E)
Document management — Engineering document format
using PDF —
Part 2:
Use of ISO 32000-2 including support for long-term
preservation (PDF/E-2)
1 Scope

This document specifies the use of the Portable Document Format (PDF) 2.0, as formalized in

ISO 32000-2, for the creation and preservation of documents used in engineering workflows.

This document does not apply to:

— specific processes for converting paper or electronic documents to the PDF/E 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;

— required computer hardware and/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 19005-1, Document management — Electronic document file format for long-term preservation —

Part 1: Use of PDF 1.4 (PDF/A-1)

ISO 19005-2, Document management — Electronic document file format for long-term preservation —

Part 2: Use of ISO 32000-1 (PDF/A-2)
ISO 32000-2, Document management — Portable document format — Part 2 : PDF 2.0

XMP Specification Part 2 : Additional Properties – Adobe Systems - https:// www .adobe .com/ content/

dam/ Adobe/ en/ devnet/ xmp/ pdfs/ XMPSpecificationPart2 .pdf
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 http:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
conformance level

identified set of restrictions and requirements with which files and processors are required to comply

electronic representation of a page-oriented aggregation of text, image and graphic data, and metadata

useful to identify, understand and render that data, that can be reproduced on paper or displayed

without significant loss of its information
[ISO 32000-2]
3.3
end-of-file marker
five character sequence %%EOF marking the end of a PDF file
3.4
end-of-line marker
EOL marker

one or two character sequence marking the end of a line, consisting of a CARRIAGE RETURN character

(0Dh) or a LINE FEED character (0Ah) or a CARRIAGE RETURN followed immediately by a LINE FEED

3.5
engineering workflow
the process that a document goes through when used by engineers
3.6
interactive processor

processor that requires or allows human interaction with the content and other objects contained in

the document during the software’s processing phase

Note 1 to entry: A file viewing tool is an example of an interactive processor; a raster image processor is an

example of a processor that is not interactive.
3.7
long-term

period of time long enough for there to be concern about the impacts of changing technologies, including

support for new media and data formats, and of a changing user community, on the information being

held in a repository, which may extend into the indefinite future
3.8
PDF
Portable Document Format
file format defined in ISO 32000-2
3.9
processor
software application that is able to read and process PDF/E files
3.10
writer
software application that is able to write PDF/E files
4 Notation

PDF operators, PDF keywords, the names of keys in PDF dictionaries, and other predefined names are

written in a bold font; operands of PDF operators or values of dictionary keys are written in an italic

font. Some names can also be used as values, depending on the context, and so the styling of the content

Token characters used to delimit objects and describe the structure of PDF files, as defined in

ISO 32000-2, 7.2.1-7.24, may be identified by their ISO/IEC 646 character name written in upper case in

bold font followed by a parenthetic two digit hexadecimal character value with the suffix “h”.

EXAMPLE 2 CARRIAGE RETURN (0Dh).

Text string characters, as defined by ISO 32000-2, 7.9.2, may be identified by their ISO/IEC 10646-1

character name written in uppercase in bold font followed by a parenthetic four digit hexadecimal

character code value with the prefix “U+”.
EXAMPLE 3 EN SPACE (U+2002).
5 Conformance
5.1 General

This document defines a file format for representing electronic documents known as “PDF/E-2”.

Conforming PDF/E-2 files shall adhere to all requirements of ISO 32000-2 as modified by this document.

A conforming file may include any valid and non-deprecated ISO 32000-2 feature that is not explicitly

forbidden by this document. Features described in PDF specifications prior to Version 2.0 which are not

explicitly described in ISO 32000-2 should not be used.

NOTE A conforming file is not obligated to use any PDF feature other than those explicitly required by

ISO 32000-2 or this document.

The proper mechanism by which a file can presumptively identify itself as being a PDF/E-2 compliance

file is described in 6.1.2.

Specific requirements for conformance with PDF/E-2s are given in Annex A. Specific requirements for

conformance with PDF/E-2r are given in Annex B.
5.2 Conforming processor

A conforming processor shall comply with all requirements regarding processor functional behaviour

specified in this document. The requirements of this document with respect to processor behaviour

are stated in terms of general functional requirements applicable to all conforming processors. This

document does not prescribe any specific technical design, user interface or implementation details of

conforming processors.

The rendering and other processing of conforming files shall be performed as defined in ISO 32000-2

subject to the additional restrictions specified by this document. Features described in PDF

specifications that are not explicitly described in ISO 32000-2 should be ignored by conforming

processors.

Conforming PDF/E-2 processors shall read and process appropriately all PDF/E-2 files.

NOTE This means that a PDF/E-2 processor need not support PDF/E-1.
6 Technical requirements
6.1 File structure
6.1.1 General

6.1.2 to 6.1.12 address overall file format issues and the base elements that form the general structure

Any data contained in a conforming file that is not described in ISO 32000-2 or this document should be

ignored by a conforming processor and shall not be used to render content on a page.

6.1.2 File header

The file header shall begin at byte zero and shall consist of “%PDF-2.n” followed by a single EOL marker,

where ‘n’ is a single digit number between 0 (30h) and 9 (39h).
NOTE This clarifies the requirement in ISO 32000-2, 7.5.2.
6.1.3 File trailer

The Encrypt key shall only be present in the trailer dictionary of PDF/E-2s conforming files.

NOTE 1 The explicit prohibit
...

ISO/DIS 24517-2.2

Document management -- Engineering document format using PDF

Document management -- Engineering document format using PDF

Gestion de documents -- Format de documents d'ingénierie utilisant le PDF

General Information

Buy Standard

Standards Content (sample)

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Document management -- Engineering document format using PDF

Gestion de documents -- Format de documents d'ingénierie utilisant le PDF

General Information

Buy Standard

Standards Content (sample)

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You