1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 15930-7:2010Graphic technology Prepressdigital data exchange usingPDFPart 7: Complete exchange of printing data(PDF/X-4) and partial exchange of printingdata with external
2、 profile reference (PDF/X-4p) using PDF 1.6BS ISO 15930-7:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 15930-7:2010.It supersedes BS ISO 15930-7:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PAI/43,
3、Graphic technology.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 70216 7ICS 35.240.30; 3
4、7.100.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2010Amendments issued since publicationDate Text affectedBS ISO 15930-7:2010Reference numberISO 1
5、5930-7:2010(E)ISO 2010INTERNATIONAL STANDARD ISO15930-7Second edition2010-07-15Graphic technology Prepress digital data exchange using PDF Part 7: Complete exchange of printing data (PDF/X-4) and partial exchange of printing data with external profile reference (PDF/X-4p) using PDF 1.6 Technologie g
6、raphique change de donnes numriques de primpression utilisant le PDF Partie 7: change complet de donnes dimpression (PDF/X-4) et change partiel de donnes dimpression avec une rfrence de profil externe (PDF/X-4p) utilisant le PDF 1.6 BS ISO 15930-7:2010ISO 15930-7:2010(E) PDF disclaimer This PDF file
7、 may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the r
8、esponsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-cre
9、ation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2
10、010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the co
11、untry of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 15930-7:2010ISO 15930-7:2010(E) ISO 2010 All rights reserved iiiContents
12、Page Foreword iv Introductionvi 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Notations 5 5 PDF/X-4 conforming files and equipment.5 6 Technical requirements 6 6.1 General .6 6.2 Non-print elements7 6.3 Complete exchange.7 6.4 Colour .7 6.5 Fonts.11 6.6 Encoding of name objects12 6.7
13、 External and embedded files12 6.8 Stream filters13 6.9 Trapping .13 6.10 Metadata and document identification13 6.11 PDF/X-4 file identification .16 6.12 Bounding boxes 16 6.13 Extended graphics state.17 6.14 PostScript XObjects 17 6.15 Use of encryption and access control 17 6.16 Images 17 6.17 An
14、notations18 6.18 Actions and JavaScripts.18 6.19 Use of the BX/EX operators18 6.20 Use of transparency18 6.21 Viewer preferences19 6.22 Use of alternate presentations.19 6.23 Rendering intents 19 6.24 Use of optional content.19 6.25 Architectural limits 20 6.26 XFA forms.20 6.27 JPEG2000 images20 An
15、nex A (normative) Requirements for PDF/X-4p.22 Annex B (informative) PDF feature summary.24 Bibliography27 BS ISO 15930-7:2010ISO 15930-7:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (I
16、SO 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, gov
17、ernmental 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. International Standards are drafted in accordance with the rules given in the ISO/IEC
18、 Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the membe
19、r bodies casting a vote. ISO 15930-7 was prepared by Technical Committee ISO/TC 130, Graphic technology. This second edition cancels and replaces the first edition (ISO 15930-7:2008), of which it constitutes a minor revision to incorporate the following changes: move informative references, ISO 1593
20、0-1, ISO 15930-3, ISO 15930-4 and ISO 15930-6, from the normative references to the Bibliography (Clause 2); remove unnecessary definitions for PDF/X-1a and PDF/X-3 (Definitions 3.18 to 3.21); adopt the changes to the transparency blend mode algorithms as provided by Adobe Systems (Clause 4); remove
21、 inaccurate and confusing statements in the bulleted list as well as the note of Clause 5; correct issues with proper validation of font encoding and widths (6.5.2, 6.5.3 and 6.5.4); correct issues with how to encode metadata (6.10); clarify some issues about annotations (6.17); remove the restricti
22、ons on the Orders key in Optional Content, thus enabling more flexible workflows (6.24). ISO 15930 consists of the following parts, under the general title Graphic technology Prepress digital data exchange using PDF: Part 1: Complete exchange using CMYK data (PDF/X-1 and PDF/X-1a) Part 3: Complete e
23、xchange suitable for colour-managed workflows (PDF/X-3) Part 4: Complete exchange of CMYK and spot colour printing data using PDF 1.4 (PDF/X-1a) Part 5: Partial exchange of printing data using PDF 1.4 (PDF/X-2) Part 6: Complete exchange of printing data suitable for colour-managed workflows using PD
24、F 1.4 (PDF/X-3) BS ISO 15930-7:2010ISO 15930-7:2010(E) ISO 2010 All rights reserved v Part 7: Complete exchange of printing data (PDF/X-4) and partial exchange of printing data with external profile reference (PDF/X-4p) using PDF 1.6 Part 8: Partial exchange of printing data using PDF 1.6 (PDF/X-5)
25、BS ISO 15930-7:2010ISO 15930-7:2010(E) vi ISO 2010 All rights reservedIntroduction ISO 15930 (all parts) defines methods for the exchange of digital data within the graphic arts industry and for the exchange of files between graphic arts establishments. It is a multi-part document where each part is
26、 intended to respond to different workflow requirements. These workflows differ in the degree of flexibility required. However, increasing flexibility can lead to the possibility of uncertainty or error. The goal throughout the various parts of ISO 15930 has been to maintain the degree of flexibilit
27、y required while minimizing the uncertainty. Many printed documents are assemblies of partial pages and/or pages created at different locations and by different organizations. The merging of these individual elements into the final printing form and the subsequent printing can take place at differen
28、t locations. Some of these elements can also be routed to multiple sites for incorporation into other documents. Each of these elements is referred to in ISO 15930 as a compound entity. A variety of data formats and structures are used for the creation of this type of material, but with two prevalen
29、t kinds of underlying data structures. These are vector-based data for the encoding of line art and textual information and raster-based data for the encoding of image information, including previously rasterized line art and textual information. Both kinds of data structures are required along with
30、 page description information in an open electronic workflow. The exchange of raster-based data using the TIFF/IT file format is defined in ISO 12639. The subject of ISO 15930 is a format for the exchange of object-based data where individual objects can be in either vector or raster data structures
31、. The various parts of ISO 15930 define a number of conformance levels intended to address different requirements; all define data formats and their usage to permit the predictable dissemination of a compound entity to one or more locations. These goals are accomplished by defining a specific use of
32、 the publicly available Adobe Portable Document Format (PDF). In order to achieve a level of exchange that avoids any ambiguity in interpretation of the file, a limited set of PDF objects that are permitted to be used is identified and restrictions to the use, or form of use, of those objects, and/o
33、r keys within those objects are added. In some environments the data exchange needs to be in a form ready for final print reproduction, by transfer of a single file. This file contains all the content information necessary to process and render the document, as intended by the sender, coded inside a
34、 single PDF file. No other files, neither external files nor internally embedded files, are required or permitted. This exchange requires no prior knowledge of the sending and receiving environments and is sometimes referred to as “complete” or “blind” exchange. It is platform- and transport-indepen
35、dent. Whereas many production workflows benefit from the exchange of complete material, with all elements present, there are circumstances when this is not appropriate. In certain workflows, some or all of the referenced elements might be more logically present at the receiving site, or might be exc
36、hanged at a different time. These include high-resolution contone-image files, line-art files, ICC profiles, etc. These exchanges will generally require prior agreement between sender and receiver. In some environments, the exchange needs to be restricted to CMYK (and spot colour) data, whilst in ot
37、hers it is more appropriate to convey it as colour-managed, CMYK, gray, RGB, and/or spot colour, or to use alternative process colour models. Several new versions of the PDF specification have been issued since the publication of ISO 15930-1 in 2001. More recent parts of ISO 15930 expand and extend
38、earlier parts by reference to later versions of the PDF specification. BS ISO 15930-7:2010ISO 15930-7:2010(E) ISO 2010 All rights reserved viiTable 1 summarizes the conformance levels defined in the various parts of ISO 15930. Table 1 PDF/X conformance levels Conformance level Part of ISO 15930 Comp
39、lete exchange Colour-managed data permitted Print characterization spaces supported PDF version PDF/X-1:2001 1 Yes No CMYK 1.3 PDF/X-1a:2001 1 Yes No CMYK 1.3 PDF/X-1a:2003 4 Yes No CMYK 1.4 PDF/X-2:2003 5 No Yes Gray, RGB, CMYK 1.4 PDF/X-3:2002 3 Yes Yes Gray, RGB, CMYK 1.3 PDF/X-3:2003 6 Yes Yes G
40、ray, RGB, CMYK 1.4 PDF/X-4 7 Yes Yes Gray, RGB, CMYK 1.6 PDF/X-4p 7 No Yes Gray, RGB, CMYK 1.6 PDF/X-5g 8 No Yes Gray, RGB, CMYK 1.6 PDF/X-5n 8 No Yes n-colorant 1.6 PDF/X-5pg 8 No Yes Gray, RGB, CMYK 1.6 This part of ISO 15930 specifies the PDF/X-4 conformance level, which incorporates all of the f
41、eatures available in the PDF/X-1a and PDF/X-3 conformance levels defined in ISO 15930-1, ISO 15930-3, ISO 15930-4 and ISO 15930-6, and adds the following. The referenced version is PDF 1.6 (rather than PDF 1.3 in ISO 15930-1 and ISO 15930-3; and PDF 1.4 in ISO 15930-4 and ISO 15930-6). The use of PD
42、F transparency, as defined in PDF 1.4 and later, has been allowed. The use of optional content (often known as layers) has been allowed, to enable regional versioning, for example. Some features of PDF, defined in PDF 1.6 and earlier versions, have been disallowed in this part of ISO 15930. In addit
43、ion, this part of ISO 15930 specifies the PDF/X-4p conformance level. PDF/X-4 requires that an ICC profile that describes the characterization of the printing condition for which the exchanged file was prepared be embedded. PDF/X-4p allows the ICC profile to be maintained externally to the exchanged
44、 file. This is especially useful in those situations where the size of the ICC profile is large in comparison with the size of the file to be exchanged; where there are a very large number of files to be exchanged that have been prepared for the same printing condition, tone and gamut compression an
45、d black generation; or where there are licensing issues that preclude embedding. Due consideration needs to be given to the increased potential for issues requiring technical discussion between file submitters and receivers when determining whether to use the PDF/X-4p conformance level in preference
46、 to PDF/X-4. In addition, it is likely that a larger proportion of receiving sites will be capable of accepting and correctly processing PDF/X-4 files. PDF/X-4 is preferred to PDF/X-4p where there is no significant benefit in the use of the latter. It is anticipated that a variety of products will b
47、e developed based on PDF/X, such as readers (including viewers) and writers of PDF/X files, and products that offer combinations of these features. Different products will incorporate various capabilities to prepare, interpret and process conforming files based on the application needs as perceived
48、by the suppliers of the products. However, it is important to note that a conforming reader is required to be able to read and appropriately process all files conforming to a specified conformance level, BS ISO 15930-7:2010ISO 15930-7:2010(E) viii ISO 2010 All rights reservedand all files that confo
49、rm to sets of previously standardized conformance levels, as defined within this part of ISO 15930. All parts of ISO 15930 define requirements and restrictions on the process of rendering PDF/X files for viewing and print, in addition to the requirements and restrictions of elements and structures within the files themselves. In some circumstances it might be appropriate to render files without rigid adherence to the provisions of ISO 15930, but it is important to be aware that such rendering
