I have the original CS Mac version # 8.0x117 which runs under OSX 10.68. Some glitches with the more esoteric parts, but everything else works as it used to on my old PPC box. CS2 might work the same, despite claims to the contrary - try it.
Also free:
Creative Suite 2
Acrobat 3D 1.0
Acrobat Standard 7.0
Acrobat Pro 8.0
Audition 3.0
GoLive CS2
Illustrator CS2
InCopy CS2
InDesign CS2
Photoshop CS2
Photoshop Elements 4.0/5.0
Adobe Premiere Pro 2.0
Info here:
http://slickdeals.net/f/5786762-freely-available-adobe-creative-suite-2-cs2-download
I tried Acrobat Pro and found it to be buggy, so I do not recommend it. There is probably free PDF software that would be current and better.