Below is a screencast showing how to upload, link, name, and insert PDFs (or any file other than images) into a WordPress post/page.
WordPress Tutorial: Uploading PDFs
About the Author: Bradley Charbonneau
I've done the big corporate thing. I've done the creative writer thing. Now I'm happily in the middle. I like to help small businesses who are interested in "working their website before their website works them." I'm also interested in creating beautiful sites with powerful WordPress themes. Google+