I would like the option of downloading PDF files in either "printer format" or "viewing on a laptop screen" landscape format.

I distribute a few free web books (on www.markwatson.com) as PDF files - I am making a note to myself to reformat them with a smaller number of lines per page, and in landscape format for easier reading on a landscape computer display.

Really, how often do people print out PDF files to read? I probably print 5% (maximum) of the PDF files that I download - the rest I read online, making the font large so I only see part of a page at once.