BTW, the second link above should be: http://ocw.mit.edu/NR/rdonlyres/Aero...coop_decis.pdf
Using PDFRead 1.8.2
, the sample conversions attached were made using Portrait mode.
If you don't mind reading the pages in landscape mode, then you may try Landscape mode and get larger text at the cost of two page turns for each .pdf page.
Other non-conventional ways to convert .pdf to .lrf/.pdf would be to use Caritas' pi
or Kwon's PaperCrop
Hope this helps!