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PDF Reference

The PDF specification was first published when Adobe® Acrobat® was introduced in 1993. Since then, updated versions of the PDF Reference have been made available from Adobe via the Web. A significant number of developers and systems integrators offer customized enhancements and extensions to Adobe's core family of products. Adobe publishes the PDF specification to foster the creation of an ecosystem around the PDF format. The PDF Reference provides a description of the Portable Document Format and is intended for application developers wishing to develop applications that create PDF files directly, as well as read or modify PDF document content.

PDF Reference, Sixth Edition, version 1.7

PDF Reference, Sixth Edition, version 1.7(PDF, 30.9M)

This book provides a description of the PDF file format and is intended primarily for developers of PDF producer applications that create PDF files directly. It also contains enough information to allow developers to write PDF consumer applications that read existing PDF files and interpret or modify their contents.

Errata to Sixth Edition (PDF, 69k)

Redaction Addendum (PDF, 59k)


Provides additional information about redaction annotation types.

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PDF Reference, Fifth Edition, version 1.6

PDF Reference, Fifth Edition, version 1.6 (PDF, 8.7M)

Errata to Fifth Edition (PDF, 28k)

Blend modes addendum (PDF, 89k)


Provides additional information about blend modes for PDF transparency.

PDF Reference, Fourth Edition, version 1.5

PDF Reference, Fourth Edition, version 1.5 (PDF, 8.8M)


This file has been compressed using Acrobat 6.0 compression for faster download. It requires Acrobat or Adobe Reader 6.0 software to open.

PDF Reference, Fourth Edition, version 1.5 (PDF, 13.5M)


The same document is available in uncompressed form, readable by Acrobat 5.0 and later versions.

Errata to Fourth Edition (TXT, 6K)

PDF Reference, Third Edition, version 1.4

PDF Reference, Third Edition, version 1.4 (PDF, 8.9M)


Published by Addison-Wesley, ISBN 0-201-75839-3

Compressed file for quicker download (ZIP: 4.5M)

Errata to Third Edition (TXT: 13k)

Changes from Version 1.3 to 1.406/01 (PDF, 849k)


PDF Reference, Second Edition, version 1.3

PDF Reference, Second Edition, version 1.3 (PDF, 4.9M)


Published by Addison-Wesley, ISBN 0-201-61588-6

Errata to Second Edition (TXT: 13k)

Highlight file format (PDF, 252k)

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