Try http://www.mindcad.com/tiler.html
Sorry but you didn't note any restrictions on the host machine or OS.
Bob
Didn't know where to stick this so....Is there anyway to print a pdf page that's really big on more than 1 sheet? So it doesn't reduce it to 60%? Is there maybe a setting in my printer to do it? I doubt it, but thanks for reading this.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic