New Jakob and this time I have to agree. PDF’s make me crazy.
Useit.Com: Avoid PDF for On-Screen Reading.
“Forcing users to browse PDF documents can reduce your website’s usability by about 300% relative to HTML pages. This is my rough estimate, based on watching users perform similar tasks on a variety of sites that used either PDF or regular Web pages.”
Now read “Why is user centered design so important” and you’ll both learn and experience the problems with PDF’s.