The official guide to the Portable Document Format.
This book details the most current specification of Adobe Systems' Portable Document Format (PDF), the de facto standard for electronic information exchange. PDF enables documents created on any platform or with any application to be reliably viewed and printed anywhere. More than 200 million copies of the PDF-based Adobe Acrobat Reader application have been distributed around the world.
Updated and expanded specifically to document the new features of PDF 1.4, as incorporated into Acrobat 5.0 and Adobe's products for Network Publishing, the book introduces and explains all key aspects of the PDF format, including the Adobe imaging model and the relationship of PDF to the PostScript page description language and PDF architecture, syntax, graphics operators, fonts, and rendering. In addition, the book looks in depth at PDF's sophisticated interactive and document interchange features.
New to this edition is in-depth coverage of the new transparent imaging model, which allows text, images, and graphics to be painted with varying degrees of opacity. Other key topics covered include:
Comprehensive, authoritative, and up-to-date, PDF Reference, Third Edition is an essential resource for all developers writing programs that read or generate PDF files, and for any professional working with PDF in business, prepress, graphic design, or other applications.
About This Book.
Introduction to PDF 1.4 Features.
Other General Properties.
PDF and the PostScript Language.
Content Streams and Resources.
Common Data Structures.
Path Construction and Painting.
Organization and Use of Fonts.
Text State Parameters and Operators.
Introduction to Font Data Structures.
Embedded Font Programs.
CIE-Based Color to Device Color.
Conversions among Device Color Spaces.
Scan Conversion Details.
Overview of Transparency.
Basic Compositing Computations.
Specifying Transparency in PDF.
Color Space and Rendering Issues.
Relational, Boolean, and Bitwise Operators.
General Implementation Limits.
Implementation Limits Affecting Web Capture.
Latin Character Set and Encodings.
Expert Set and MacExpertEncoding.
Symbol Set and Encoding.
ZapfDingbats Set and Encoding.
Background and Assumptions.
Linearized PDF Document Structure.
Minimal PDF File.
Simple Text String Example.
Simple Graphics Example.
Page Tree Example.
Outline Hierarchy Example.
PDF Version Numbers.
The origins of the Portable Document Format and the Adobe(R) Acrobat(R) product family date to early 1990. At that time, the PostScript(R) page description language was rapidly becoming the worldwide standard for the production of the printed page. PDF builds on the PostScript page description language by layering a document structure and interactive navigation features on PostScript's underlying imaging model, providing a convenient, efficient mechanism enabling documents to be reliably viewed and printed anywhere.
The PDF specification was first published at the same time the first Acrobat products were introduced in 1993. Since then, updated versions of the specification have been and continue to be available from Adobe via the World Wide Web. This book is the third professionally published edition of the specification. Like its predecessor, it is completely self-contained, including the precise documentation of the underlying imaging model from PostScript along with the PDF-specific features that are combined in version 1.4 of the PDF standard.
Over the past eight years, aided by the explosive growth of the Internet, PDF has become the de facto standard for the electronic exchange of documents. Well over 200 million copies of the free Acrobat Reader(R) application have been distributed around the world, facilitating efficient sharing of digital content. In addition, PDF is now the industry standard for the intermediate representation of printed material in electronic prepress systems for conventional printing applications. As major corporations, government agencies, and educational institutions streamline their operations by replacing paper-based workflow with electronic exchange of information, the impact and opportunity for the application of PDF will continue to grow at a rapid pace.
PDF is the file format that underlies Adobe ePaper(R) Solutions, a family of products supporting Adobe's vision for Network Publishing--the process of creating, managing, and accessing digital content on diverse platforms and devices. ePaper fulfills a set of requirements related to business process needs for the global desktop user, including:
A significant number of third-party developers and systems integrators offer customized enhancements and extensions to Adobe's core family of products. Adobe publishes the PDF specification in order to encourage the development of such third-party applications.
The emergence of PDF as a standard for electronic information exchange is the result of concerted effort by many individuals in both the private and public sectors. Without the dedication of Adobe employees, our industry partners, and our customers, the widespread acceptance of PDF could not have been achieved. We thank all of you for your continuing support and creative contributions to the success of PDF.