1、BRITISH STANDARD BS ISO 15930-1:2001 Graphic technology Prepress digital data exchange Use of PDF Part 1: Complete exchange using CMYK data (PDF/X1 and PDF/X1a) ICS 37.100.99; 35.240.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 15930-1:2001 This British Standard, h
2、aving been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 4 February 2002 BSI 4 February 2002 ISBN 0 580 38968 5 National foreword This British Standard reproduces v
3、erbatim ISO 15930-1:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PAI/43, Graphic technology, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its se
4、cretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standa
5、rds Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers t
6、o understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document c
7、omprises a front cover, an inside front cover, the ISO title page, pages ii to vi, pages 1 to 17 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 15930-1:20
8、01(E)INTERNATIONAL STANDARD ISO 15930-1 First edition 2001-12-01 Graphic technology Prepress digital data exchange Use of PDF Part 1: Complete exchange using CMYK data (PDF/X-1 and PDF/X-1a) Technologie graphique change de donnes numriques de primpression Emploi de PDF Partie 1: change complet emplo
9、yant les donnes CMYK (PDF/X-1 et PDF/X-1a) ISO 15930-1:2001(E) ii Contents Page Foreword . i v Introduction . v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions . 2 4 Symbols and notations 4 5 Conformance . 4 6 Technical requirements . 5 Annexes A PDF feature summary 1 2 B OPI, externa
10、l references, external files and streams . 1 4 C Minimal requirements for PDF/X OutputIntent objects 15 D Clarifications 1 6 Bibliography 17 ISO 15930-1:2001(E)iii ISO 15930-1:2001(E) ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
11、 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, gover
12、nmental 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 D
13、irectives, Part 3. 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 member
14、bodies casting a vote. ISO 15930-1 was prepared by Technical Committee ISO/TC 130, Graphic technology, with the support of ANSI Committee for Graphic Arts Technologies Standards (CGATS). ISO 15930 consists of the following parts, under the general title Graphic technology Prepress digital data excha
15、nge Use of PDF: Part 1: Complete exchange using CMYK data (PDF/X-1 and PDF/X-1a) Part 2: Guidelines for partial exchange of printing data (PDF/X-2) Part 3: Complete exchange suitable for colour managed workflows (PDF/X-3) Annexes A to D of this part of ISO 15930 are for information only. iv Foreword
16、ISO 15930-1:2001(E) Introduction ISO 15930 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 intended to respond to different workflow requirements. These
17、 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 flexibility required while minimising the uncertainty. Many printed docu
18、ments 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 may take place at different locations. Some of these elements may also be routed to mult
19、iple 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 prevalent kinds of underlying data structures. These are vector-based
20、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 page description information in an open electronic workflow.
21、 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 may be in either vector or raster data structures. Part 1 of ISO 15930 defines a data format and its usage to
22、permit the predictable dissemination of a compound entity to one or more locations as CMYK data, in a form ready for final print reproduction, by transfer of a single file. This file must contain all the content information necessary to process and render the document, as intended by the sender. Thi
23、s exchange requires no prior knowledge of the sending and receiving environments and is sometimes referred to as “blind“ exchange. It is platform and transport independent. These goals are accomplished by defining a specific use of the publicly available Adobe Portable Document Format as specified i
24、n Version 1.3 In order to achieve a level of exchange that avoids any ambiguity in interpretation of the file, it identifies a limited set of PDF objects which may be used and adds restrictions to the use, or form of use, of those objects, and/or keys within those objects. It includes two compliance
25、 levels, PDF/X-1 and PDF/X-1a, that differ only in their allowed use of OPI references, and encryption which are allowed in PDF/X-1 but not in PDF/X-1a. Whereas PDF/X-1 and PDF/X-1a specify the exchange of complete material, primarily as CMYK data, with all elements present, there are occasions wher
26、e this is not appropriate. In certain workflows some or all of the referenced elements may be more logically present at the receiving site, or may be exchanged at a different time. These include fonts, high resolution contone image files, or line art files. These exchanges will generally require pri
27、or agreement between sender and receiver. Further, evolving colour management capabilities may allow elements to be exchanged more expeditiously in colour spaces other than CMYK. The requirements for such situations are addressed in later parts of ISO 15930. Although re-purposing of data is not a pr
28、imary consideration or requirement of this part of ISO 15930, maximum flexibility will be maintained so that future requirements for re-purposing may be accommodated. It is anticipated that a variety of products will be developed around PDF/X-1, such as readers (including viewers) and writers of PDF
29、/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 by the suppliers of the products. However, it is important to note that a conformi
30、ng reader must be able to read and appropriately process all files conforming to a specified conformance level. v ISO 15930-1:2001(E) The PDF/X-1 conformance level of this part of ISO 15930 is generally similar to ANSI CGATS.12/1-1999, Graphic technology Prepress digital data exchange Use of PDF for
31、 composite data Part 1: Complete exchange (PDF/X-1). ANSI CGATS.12/1 is based on Portable Document Format Reference Manual Version 1.2 as extended by Adobe Technical Note #5188. This part of ISO 15930 is based on the Adobe Portable Document Format Version 1.3. Users are cautioned that there are curr
32、ently three different conformance levels that may be associated with PDF/X readers and writers. Two of these are generally referred to as PDF/X-1 and are those compatible with ANSI CGATS.12/1-1999 and the PDF/X-1 compatibility level of this part of ISO 15930. It is recommended that these be referred
33、 to as PDF/X-1:1999 and PDF/X- 1:2001 respectively. Further this part of ISO 15930 makes provision for a 2nd conformance level which does not allow OPI references or encryption. This should be referred to as PDF/X-1a:2001. While a PDF/X-1:2001 reader should accept and properly read files conforming
34、to both PDF/X-1:2001 and PDF/X-1a:2001 conformance levels, readers meeting the other two conformance levels should not be expected to properly read files outside of their own conformance level. An ongoing series of Application Notes 1 is maintained for the guidance of developers and users of the ISO
35、 PDF/X family of International Standards. They are available from NPES The Association for Suppliers of Printing, Publishing and Converting Technologies in the standards section at http:/www.npes.org/standards/workroom.html. Attention is drawn to the fact that it is claimed that compliance with this
36、 part of ISO 15930 may involve the use of a patent concerning data encryption (clause 6.17). ISO takes no position concerning the evidence, validity and scope of this patent right. The holder of this patent right has assured ISO that they are willing to negotiate licenses under reasonable and non-di
37、scriminatory terms and conditions with applicants throughout the world. Information may be obtained from: RSA Data Security, Inc., 100 Marine Parkway, Redwood City, CA 94065-1031, USA. Attention is also drawn to the possibility that some of the elements of this part of ISO 15930 may be the subject o
38、f patent rights other than those identified above. ISO shall not be held responsible for identifying any or all such patent rights. vi INTERNATIONAL STANDARD ISO 15930-1:2001(E)Graphic technology Prepress digital data exchange Use of PDF Part 1: Complete exchange using CMYK data (PDF/X-1 and PDF/X-1
39、a) 1 Scope This part of ISO 15930 specifies the methods for the use of the Portable Document Format (PDF) for the dissemination of compound CMYK digital data, in a single exchange, that is complete and ready for final print reproduction. 2 Normative references The following normative documents conta
40、in provisions which, through reference in this text, constitute provisions of this part of ISO 15930. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 15930 are encouraged to investigate
41、the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 12639, Graphic technolo
42、gy Prepress digital data exchange Tag image file format for image technology (TIFF/IT) ANSI CGATS.12/1-1999, Graphic technology Prepress digital data exchange Use of PDF for composite data Part 1: Complete exchange (PDF/X-1) ICC.1:1998-09, File Format for Color Profiles, International Color Consorti
43、um Adobe Portable Document Format, version 1.3, 2nd Ed., Adobe Systems Incorporated, Dated July 2000, ISBN 0-201-61588-6 Adobe Technical Note #5002 Encapsulated PostScript File Format Specification Version 3.0, 1 May 1992, Adobe Systems Incorporated Adobe Technical Note #5044 Color Separation Conven
44、tions for PostScript Language Programs, 12 February 1996, Adobe Systems Incorporated Adobe Technical Note #5413 Recording Output Intentions for Color Critical Workflows, 22 January 2001, Adobe Systems Incorporated Desktop Color Separation Specification 2.0, June 1993, revised May 1995, Quark Inc. Dr
45、aft TIFF Technical Note #2, 17 March 95, Tom Lane, the Independent JPEG Group PostScript Language Reference Manual, third edition, 1999, Adobe Systems Incorporated, ISBN 0-201-37922-8 TIFF, Revision 6.0, June 3, 1992, Adobe Systems Incorporated devreser sthgir llA - 1002 OSI 1ISO 15930-1:2001(E) 2 3
46、 Terms and definitions For the purposes of this part of ISO 15930, the following terms and definitions apply. 3.1 bleed additional printing area outside the nominal printing area necessary for the allowance of mechanical tolerance in the trimming process NOTE The bleed area includes area that may be
47、 printed but does not include printers marks of any kind. 3.2 blind exchange exchange of compound entities which requires no exchange of technical information between sender and receiver in order for the receiver to render the printed page as intended by the sender3.3 characterized printing conditio
48、n printing condition (offset, gravure, flexographic, direct, etc.) for which process control aims are defined and for which the relationship between input data (printing tone values, usually CMYK) and the colorimetry of the printed image is documented NOTE 1 The relationship between input data (prin
49、ting tone values) and the colorimetry of the printed image is commonly referred to as characterization. NOTE 2 It is generally preferred that the process control aims of the printing condition and the associated characterization data be made publicly available via the accredited standards process or industry trade associations. 3.4 CMYK cyan-magenta-yellow-black used as a modifier of printing tone values, colours, process colorants, etc. 3.5 complete exchange
