Open Source Software for Print Tiling?

tileMe asks: "The US National Park Service's Digital Maps department's website claims the following: 'To print maps larger than your printer's paper size using page tiling, you must have the full retail version of Adobe Acrobat 5.0. The oversize map is divided into tiles or sections, each of which is printed on one page. You can then manually cut and tape these sections together.' I need to do this EXACT thing but can't purchase anything. What Open Source or Freeware software can I use and how do I do this? The only requirements are the software must run on a 300MHz PC with Win9x or Linux."