Acrobat plug-ins are dynamically-linked extension to Acrobat or Adobe Reader. They can hook into the user interface in a number of ways and can registered to be called when a variety of events occur in the application. A plug-in is a program written in ANSI C/C++ that uses Acrobat public APIs. The Acrobat API is divided into several layers; each layer controls a different aspect of the Acrobat environment. Plug-in projects consist of header files, SDK source files, user source files, user GUI resource files. The Acrobat SDK provides tools to help create these projects. The output file is a dynamically linked library file, with the extension .api, that should be placed in the Plug-ins folder under Acrobat.
Developing plug-ins and applications for Acrobat 9
Learn to use Acrobat SDK 9 to create plug-ins for Adobe Reader 9 and Acrobat 9 as well as to develop PDF Library applications. The Acrobat SDK contains two libraries: the Acrobat core API and the PDF Library API. The latest API descriptions are contained in the Acrobat and PDF Library API Reference.
Creating an Adobe Reader 9 plug-in
Learn to develop and enable a plug-in to be loaded by Adobe Reader 9. Also learn to troubleshoot the Adobe Reader 9 plug-in.
Developing plug-ins and applications (PDF, 4.6M)
Understand and learn to develop the Acrobat plug-ins and PDF Library applications. Also learn to upgrade plug-ins from Acrobat 7 to Acrobat 8, know the platform-specific techniques for developing plug-ins, and obtain the list of Acrobat SDK header files.
You must complete an Integration Key License Agreement (IKLA) to obtain a public key to allow you to build plug-ins for Adobe Reader software.
Developing for Adobe Reader (PDF, 953k)
Learn the steps and process that must be followed to enable a plug-in to be loaded by Adobe Reader.
Acrobat and PDF Library API Reference (PDF, 14.5M)
Get detailed descriptions of the PDF Library and Acrobat core and extended APIs.
Using the Save As XML plug-in (PDF, 412k)
Get information on the custom language used to save a tagged document in different formats such as XML, HTML, and similar text-based formats.