Originally Posted by =X=
I find reading PDF books fine to read because most are about 9" including the margins. Good PDF reader can easily autocrop the margins off so you don't have to pan-zoom the pages. When reading pdf gets a bit cumbersome is when the PDFs are letter/A4 or bigger. At this point you can use reflow, and which works great, so long as you don't have pictures or graphs.
Do you read them in landscape orientation?