ISO 19445:2022

SLOVENSKI STANDARD
SIST ISO 19445:2023
01-april-2023
Grafična tehnologija - Meta podatki za grafični potek dela - XMP meta podatki za
poskusno tiskanje slik in dokumentov
Graphic technology — Metadata for graphic arts workflow — XMP metadata for image
and document proofing
Technologie graphique — Métadonnées pour le flux de travail des arts graphiques —
Métadonnées XMP pour la relecture de document et d'image
Ta slovenski standard je istoveten z: ISO 19445:2022
ICS:
35.240.30 Uporabniške rešitve IT v IT applications in information,
informatiki, dokumentiranju in documentation and
založništvu publishing
SIST ISO 19445:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 19445:2023

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SIST ISO 19445:2023
INTERNATIONAL ISO
STANDARD 19445
Second edition
2022-06
Graphic technology — Metadata
for graphic arts workflow — XMP
metadata for image and document
proofing
Technologie graphique — Métadonnées pour le flux de travail des
arts graphiques — Métadonnées XMP pour la relecture de document
et d'image
Reference number
ISO 19445:2022(E)
© ISO 2022

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SIST ISO 19445:2023
ISO 19445:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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
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or ISO’s member body in the country of the requester.
ISO copyright office
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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
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SIST ISO 19445:2023
ISO 19445:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Requirements . 2
4.1 General . 2
4.2 Namespace . 2
4.3 XMP packet structure . 2
4.4 ImageApprovals property . 2
4.5 ProofingApprovals property . 3
4.6 ProofPrinter record . 4
4.7 ProofingDevice record . 5
5 Soft-Proofing PDF specifications .6
5.1 Encoding PDF/X output conditions . 6
5.2 Using digital signatures. 6
Annex A (informative) XMP examples . 7
Bibliography .10
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SIST ISO 19445:2023
ISO 19445:2022(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 130, Graphic technology.
This second edition cancels and replaces the first edition (ISO 19445:2016), of which it constitutes a
minor revision. The changes are as follows:
— the references in Clause 2 and the Bibliography have been updated.
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.
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SIST ISO 19445:2023
ISO 19445:2022(E)
Introduction
This document describes a set of metadata that can be used to communicate the approval status for
images or documents that are used for Graphic Arts print production workflow.
It is based on the soft-proofing ticket defined by the Ghent PDF Workgroup which uses XMP. This
specification includes the specification of the Ghent PDF Workgroup soft-proofing ticket and extends it
to include metadata required for the image preparation stage of the workflow.
The intent of this metadata is to track who has approved the image or document, how the proof was
prepared, and what the viewing conditions were during the approval. To achieve this, the approver is
identified along with the document output conditions, the software used for the approval and details of
the device configuration.
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SIST ISO 19445:2023

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SIST ISO 19445:2023
INTERNATIONAL STANDARD ISO 19445:2022(E)
Graphic technology — Metadata for graphic arts workflow
— XMP metadata for image and document proofing
1 Scope
This document specifies the set of metadata to be used to communicate the approval status, proof
preparation and viewing parameters for images and documents that are used in the graphic arts print
production workflow.
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 15076-1, Image technology colour management — Architecture, profile format and data structure —
Part 1: Based on ICC.1:2010
ISO 16684-1, Graphic technology — Extensible metadata platform (XMP) — Part 1: Data model,
serialization and core properties
ISO 32000-1, Document management — Portable document format — Part 1: PDF 1.7
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions 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/
3.1.1
ICC CMYK Characterization Data Registry
central registry for CMYK print characterisation data maintained by the ICC
3.1.2
ICC Profile
set of colorimetric transforms prepared according to ICC.1 or ISO 15076-1
3.1.3
PDF/X
file format for reliable exchange of print-ready data defined in ISO 15930
3.1.4
XMP
Extensible Metadata Platform
standard format for the creation, processing, and interchange of metadata as defined by ISO 16684-1
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SIST ISO 19445:2023
ISO 19445:2022(E)
3.2 Abbreviated terms
GWG Ghent PDF Workgroup (see www .gwg .org)
ICC International Color Consortium (see www .color .org)
URI Uniform Resource Identifier (defined in IETF RFC 3986)
4 Requirements
4.1 General
XMP shall be used to store information about the image and document preparation and approval and
shall conform to the requirements of ISO 16684-1 and additional requirements as defined by this
document.
This metadata shall be added, as described in ISO 16684-1, as an XMP packet to the image or document
to which it refers.
4.2 Namespace
The namespace URI for XMP properties and fields defined in this document shall be http:// gwg .org/
spt/ xmlns/ .
The preferred namespace prefix is spt.
4.3 XMP packet structure
An XMP packet conforming to this document shall include either the ImageApprovals property or the
ProofingApprovals property but not both. An XMP packet conforming to this document may contain
other XMP properties.
4.4 ImageApprovals property
The ImageApprovals property shall be a non-empty ordered array of ImageApproval records as
specified in Table 1.
The ImageApprovals record shall contain entries for all fields marked as Required and where
appropriate should contain entries for those fields marked as Optional.
NOTE There is currently no defined purpose to the ImageApprovals order. An ordered array is used for
compatibility with earlier GWG specifications.
The fields of the ImageApproval record are shown in Table 1.
Table 1 — ImageApproval record
Name Type Field content
PrintingConditionIdentifier open Choice of Text Required. The Reference Name for the printing con-
dition that was used when the image was approved.
This is an open choice - preferred options are those
indicated in the ICC CMYK Characterization Data
Registry (see www .color .org).
PrintingConditionDescription Text Required. A non-empty human readable string that
describes the printing condition.
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SIST ISO 19445:2023
ISO 19445:2022(E)
Table 1 (continued)
Name Type Field content
PrintingConditionProfileID Text Required. The ICC Profile ID of the printing condition
profile used when the image was approved. Note
that if the ICC Profile ID was not set (i.e. is zero) the
profile ID shall be calculated as described in ISO
15076 (ICC profile format specification).
The 16 byte ICC profile ID shall be expressed as a
hexadecimal text string with dash separators be-
tween every 8 characters (4 bytes) making a total
string length of 35 characters.
RenderingIntent closed Choice of Required. The rendering intent used when approving
Text the image; closed choice of AbsoluteColorimetric,
RelativeColorimetric, Perceptual or Saturation.
NOTE If using BlackPointCompensation as defined
in ISO 18619, then RenderingIntent cannot be Ab-
soluteColorimetric.
BlackPointCompensation Boolean Required. Indicates whether BlackPoint Compen-
sation was used when the image was approved.
BlackPoint Compensation should be performed as
described in ISO 18619.
ApproverName ProperName Required. A human readable name.
ApprovalDevice closed Choice of Required. Closed choice of Monitor or Printer.
Text
ApprovalStatus closed Choice of Required. The status of approval; closed choice of
Text Approved or Rejected.
ApprovalDate Date Required. The date and time of approval.
ProofPrinters ordered array of Required when hard copy proofing is performed.
ProofPrinter re- One or more ProofPrinter records defined in 4.6
cords describing the hard copy proof
ProofingDevices ordered array of Required when soft proofing is performed. One or more
Proof ingDev ice ProofingDevice records defined in 4.7 describing
records the proofing device(s)
4.5 ProofingApprovals property
The ProofingApprovals property shall be a non-empty ordered array of ProofingApproval records as
specified in Table 2.
The ProofingApprovals record shall contain entries for all fields marked as Required and where
appropriate should contain entries for those fields marked as Optional. When writing the
ProofingApprovals record entries for those fields indicated as Deprecated should not be used – fields
marked in this way indicate past usage and are provided in this document for information only.
NOTE There is currently no defined purpose to the ProofingApprovals order. An ordered array is used for
compatibility with earlier GWG specifications.
The fields of the ProofingApproval record are shown in Table 2.
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