View the Adobe® Acrobat® SDK End User License Agreement

Using Knowledgebase sample files
Provided you otherwise agree to the Terms of Use, Adobe permits you to use, modify, and distribute the sample files displayed in the Knowledgebase when incorporated into your work. IF YOU DO NOT AGREE WITH THE Terms of Use, YOU ARE NOT LICENSED TO USE THE SAMPLE FILES. Works incorporating such sample files must include the following notice: "Portions Copyright ©2000-2003 Adobe Systems Incorporated. All rights reserved."

Adobe Patent Clarification Notice:
Reading and writing PDF files
Adobe has a number of patents covering technology that is disclosed in the Portable Document Format (PDF) Specification, version 1.3 and later, as documented in PDF Reference and associated Technical Notes (the "Specification"). Adobe desires to promote the use of PDF for information interchange among diverse products and applications. Accordingly, the following patents are licensed on a royalty-free, nonexclusive basis for the term of each patent and for the sole purpose of developing software that produces, consumes, and interprets PDF files that are compliant with the Specification:

U.S. Patent Numbers:

• 5,634,064
• 5,737,599
• 5,781,785
• 5,819,301
• 6,028,583
• 6,289,364  
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• 6,421,460
   

In addition, the following patent is licensed on a royalty-free, nonexclusive basis for its term and for the sole purpose of developing software that produces PDF files that are compliant with the Specification (specifically excluding, however, software that consumes and/or interprets PDF files):

U.S. Patent Number:

• 5,860,074
  

Adobe Patent Clarification Notice:
Reading and writing XDP files
Adobe has a patent pending covering technology that is disclosed in the XML Data Package Specification, versions 2.0 and later, concerning the use of XML Data Packages ("XDP") as secure XML containers for transactions using PDF forms and other data (the "Specification"). Adobe desires to promote the use of XDP for information interchange among diverse products and applications. Accordingly, the pending patent is licensed on a royalty-free, nonexclusive basis for the term of such patent and for the sole purpose of developing software that produces, consumes, and/or interprets XDP files that are compliant with the Specification.

The above licenses are limited to only those rights required to implement the Specification and no others. That is to say, Adobe grants only those rights in the above patent(s) necessarily practiced to implement the Specification, and does not grant any rights not required to implement the Specification. The licenses do not grant the right to practice any patent covering other technologies, such as implementation techniques that are not explicitly disclosed in the Specification, nor does it allow the use of any patented feature for any purpose other than as set forth in the applicable license grant. Adobe has other patents in various fields, none of which are hereby licensed.