Final Thoughts
While this article is just the tip of the iceberg as far as interactive content you can add to a PDF, it gives you a good base of knowledge that you can start from. If you are looking to push your PDF to the interactive limits (so to speak), there are lots of resources out there on the web for you. Check out the PDF Developer junkie blog for lots of in-depth Acrobat goodies and news, run by Joel Geraci, an Acrobat Technical Evangelist. Also, check out the website http://www.acrobatusers.com for great tutorials and expert forums where you can ask questions.