[boost] PDF versions of Quickbook generated documentation - Do you like the serif font?

I've noted that for documentation using the Quickbook toolchain, we use a serif font (Times Roman?) for the PDF, but a sans serif for the equivalent HTML version. Is there a reason for this? Should they not be the same font? (So that they look the same?) Which do we prefer? Should we change either or both? Paul --- Paul A. Bristow Prizet Farmhouse Kendal UK LA8 8AB +44 (0) 1539 561830