PDF Labs


PDF Labs Docs

Guide to PDFtk Pro

PDFtk Pro is a friendly GUI tool for working with PDF documents. Use it to easily merge, split, rotate, watermark, stamp or secure your PDFs. This guide shows you how to use its various features.

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PDFtk Server Manual

This pdftk manual documents all of its options and operations. Please consult our tutorials for some friendlier explanations. Pdftk is a command-line program, so you should use your computer terminal or command prompt to try these examples.

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PDFtk Server Examples

These examples show you how to perform common PDF tasks from the command-line using pdftk.

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PDFtk Server License

You can use PDFtk Server at no charge under its GPL license.

Commercial users will benefit from our comprehensive commercial support agreement.

To distribute PDFtk Server as part of your own commercial product you will need to purchase our PDFtk Server Redistribution License.

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PDFtk Version History

A history of PDFtk features and fixes. It also links to older versions of PDFtk.

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STAMPtk Manual

This STAMPtk manual documents all of its options and operations. Please consult our tutorials for some friendlier explanations. STAMPtk is a command-line program, so you should use your computer terminal or command prompt to try these examples.

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Install PDFtk on Red Hat or CentOS

Install PDFtk Server on Red Hat Enterprise Linux (RHEL versions 5 or 6) or CentOS (versions 5 or 6). Download a binary RPM, build from a source RPM, or build from source code.

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How to Add Headers, Footers, Watermarks and Stamps to PDF

Learn to use STAMPtk with PDFtk to add headers, footers, watermarks and stamps to PDF documents. These command-line tools are ideal for server-side processing of PDFs.

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About PDF Labs

Our mission is to make PDF easier to use.

PDF Labs is operated by Sid Steward, author of PDF Hacks (O’Reilly) and the popular PDF Toolkit.

Please contact Sid Steward by email. Include PDF Labs in the subject to ensure prompt delivery:


About PDF Hacks

PDF Hacks Cover

"If you like pdftk, then you’ll appreciate the other 25 programs and scripts I created for my book, PDF Hacks." –Sid


About PDFtk

For ten years, power users have relied on PDFtk for server-side processing of PDF documents. Our command-line PDFtk has been — and always will be — free (as in freedom) software.

Today we also offer a convenient graphical application: PDFtk Pro. Your purchase of PDFtk Pro will help fund the continued development of our GPL PDFtk.

Thank you for your support!