ISO INTERNATIONAL STANDARD 32000-1 First edition 2008-07-01 Document management Portable document format Part 1: PDF 1.7 Gestion de documents - Format de document portable - Partie 1: PDF 1.7 Reference number ISO 32000-1:2008(E) @ ISO 2008 by IHS under lic itted without license from IHS Not for Resale ISO 32000-1:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's 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 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-creation 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 COPYRIGHTPROTECTEDDOCUMENT @ ISO2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country 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 [email protected] Web www.iso.org Published in Switzerland @ ISO 2008 - All rights reserved ed without license from IHS Not for Resale ISO 32000-1:2008(E) Contents Page Foreword. . Introduction vii 1 Scope 2 Conformance 2.1 General...... 2.2 Conforming readers 2.3 Conforming writers. 2.4 Conforming products 2 3 Normative references 4 Terms and definitions . 6 5 Notation 10 6 Version Designations 10 11 7.1 General. 11 7.2 Lexical Conventions 11 7.3 Objects. 13 7.4 Filters 22 7.5 File Structure. 38 7.6 Encryption. 55 7.7 Document Structure... . 70 7.8 Content Streams and Resources 81 7.9 Common Data Structures 84 7.10 Functions... 92 7.11 File Specifications 99 7.12 Extensions Dictionary 108 8 Graphics 110 8.1 General. 110 8.2 Graphics Objects 110 8.3 Coordinate Systems 114 8.4 Graphics State. 121 8.5 Path Construction and Painting 131 8.6 Colour Spaces. 138 8.7 173 8.8 External Objects 201 8.9 Images 203 8.10 Form XObjects 217 8.11 Optional Content. 222 Text 237 9.1 Generai. 237 9.2 Organization and Use of Fonts 237 9.3 Text State Parameters and Operators. 243 9.4 Text Objects 248 9.5 Introduction to Font Data Structures 253 9.6 Simple Fonts . 254 9.7 Composite Fonts. 267 9.8 Font Descriptors. . 281 9.9 Embedded Font Programs. 288 9.10 Extraction of Text Content. 292 @ ISO 2008 - All rights reserved ii Copyright International Organization for Standardization rmited without license from IHS Not for Resale ISO 32000-1:2008(E) 10 Rendering 296 10.1 General. 296 10.2 CIE-Based Colour to Device Colour 297 10.3 Conversions among Device Colour Spaces. .. . . 10.4 Transfer Functions . 300 10.5 Halftones ..... 301 10.6 Scan Conversion Details .316 11 Transparency 320 11.1 General. 320 11.2 Overview of Transparency . 11.3 Basic Compositing Computations 322 11.4 Transparency Groups. . . .332 11.5 Soft Masks.. 342 11.6 Specifying Transparency in PDF. 11.7 Colour Space and Rendering Issues. 353 12 Interactive Features . .362 12.1 12.2 Viewer Preferences .362 12.3 Document-Level Navigation, 365 12.4 Page-Level Navigation 12.5 Annotations. 381 12.6 Actions. 12.7 Interactive Forms 430 12.8 Digital Signatures . .. . 12.9 Measurement Properties .479 12.10 Document Requirements 484 13 Multimedia Feature 486 13.1 General. 13.2 Multimedia 486 13.3 Sounds 506 13.4 Movies 507 13.5 Alternate Presentations 509 13.6 3D Artwork. 511 14 Document Interchange 547 14.1 General..... 547 14.2 Procedure Sets . 547 14.3 Metadata.. . 548 14.4 File Identifiers 551 14.5 Page-Piece Dictionaries 551 14.6 Marked Content. . . 552 14.7 Logical Structure. . 556 14.8 Tagged PDF 573 1