Well, apparently Adobe has an SDK, but I'm not sure that is exactly what you're looking for. It seems like it would require having acrobat installed on the computer and you just acess the program through a plug-in in your program.

http://partners.adobe.com/public/developer/acrobat/sdk/index.html

This looks like a good list of links:

http://www.foolabs.com/xpdf/links.html

Specifially these two:

http://www.pdflib.com/
http://www.fastio.com/

And the following link has sources for an actual pdf reader that may hopefully help you a little:

http://www.foolabs.com/xpdf/download.html

Sorry the links aren't clickified.

EDIT: And perhaps a better reference than the one I gave earlier from Adobe. "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."

http://partners.adobe.com/public/developer/pdf/index_reference.html

I think if you want something easier then you may unfortunately be out of luck.