about the pdf: there are some tweaks for non-rooted devices (including the above mentioned "last read" view) and changing of fonts.
this wiki holds a lot of useful info, however i didn't look into that. fonts in pdfs are often embedded, as far as i know, pdfs are more like pictures in layout, not fluid like epubs.
I'm using the official Adobe Reader in text-reflow mode on mine and am quite satisfied with it. If you own an android phone you can test the apps mentioned
here, to get an idea of the possibilities with rooting.