My personal favourite where pdfs are concerned is the Foxit pdf readers.
The foxit reader is free, fast, small, unintrusive and works perfectly.
Alternatively, you can get the foxit professional. This lets you edit pdf documents. They have a 'typewriter' function that basically lets you type anywhere on the pdf version. You can d/l a trial version for free. The only limitation with the free version is that if you save an edited pdf dopcument, there will be a watermark.
Highly reccomended. I really really hate pdf files because they are resource hogs. My hate for them has, however, been ameliorated somewhat because of foxit.
http://www.foxitsoftware.com/download.htm