OK, this could be the problem. The page size is very small:
Code:
dave@snow107 ~/Desktop> pdfinfo -box carnap-logical-analysis.pdf
Producer: GPL Ghostscript SVN PRE-RELEASE 8.61
CreationDate: Mon May 5 21:30:26 2008
ModDate: Mon May 5 21:30:26 2008
Tagged: no
Pages: 20
Encrypted: no
Page size: 23 x 35 pts
MediaBox: 0.00 0.00 23.00 35.00
CropBox: 0.00 0.00 23.00 35.00
BleedBox: 0.00 0.00 23.00 35.00
TrimBox: 0.00 0.00 23.00 35.00
ArtBox: 0.00 0.00 23.00 35.00
File size: 806351 bytes
Optimized: no
PDF version: 1.4
That's just 8.1 x 12.3
mm! I guess the iliad is automatically zooming as much as it can (which I think is set to a maximum of 300%). When I opened your file in acrobat and told it to display at page width size it had to zoom to 4033% (yes, over four thousand percent).
Can you reproduce your PDF so that each page is larger, e.g. about 10 times larger?