I think yes...here is an excellent image showing the device with a sense of scale. My guess is your PDF's should be OK...nobody can say for sure until someone buys the beastie and tries it out...but as you can see, it's certainly large enough for research and notes at the same time...I bet it's a killer lab journal!!
http://www.pcmag.com/slideshow_viewe...D21,00.asp?p=y
(note...stop the slideshow right away because it's just the one pic of interest)