PDF Reference
sixth edition
Adobe® Portable Document Format
Version 1.7
November 2006
Adobe Systems Incorporated
© 1985–2006 Adobe® Systems Incorporated. All rights reserved.
PDF Reference, sixth edition: Adobe Portable Document Format version 1.7.
November 2006
NOTICE: All information contained herein is the property of Adobe Systems Incorporated.
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5
Contents
Preface 23
Chapter 1: Introduction 25
1.1 About This Book 25
1.2 Introduction to PDF 1.7 Features 28
1.3 Related Publications 31
1.4 Intellectual Property 32
Chapter 2: Overview 33
2.1 Imaging Model 34
2.2 Other General Properties 38
2.3 Creating PDF 43
2.4 PDF and the PostScript Language 45
Chapter 3: Syntax 47
3.1 Lexical Conventions 48
3.2 Objects 51
3.3 Filters 65
3.4 File Structure 90
3.5 Encryption 115
3.6 Document Structure 137
3.7 Content Streams and Resources 151
3.8 Common Data Structures 155
3.9 Functions 166
3.10 File Specifications 178
Chapter 4: Graphics 193
4.1 Graphics Objects 194
4.2 Coordinate Systems 199
4.3 Graphics State 210
4.4 Path Construction and Painting 224
4.5 Color Spaces 235
4.6 Patterns 289
4.7 External Objects 332
4.8 Images 334
4.9 Form XObjects 355
4.10 Optional Content 364
