I have an iPad to for the same reason...2Story is 100% correct. Put them on iTunes and sync the iPad at the office. Also all the manuals can sync to you iPhone too, hard to read but good in a pinch. Another way, at home, if you have wifi, turn your iPad's wifi on (instead of cellular), go find your manuals. When you open a pdf, tap near the top of the screen and small window pops up (open in iBooks?), click it, and its in your library.