Alan Shutko
Explorer
So these are PDFs that weren't made with the Retina display pixel density in mind? That's what I wanted confirmation of -- I didn't want to buy an iPad 3 only to find the majority of the documents I intended to read on it would look better on the prior version.
PDFs come in two varieties: the ones which are simply scanned pages, usually somewhere around 100-200 DPI, and the ones with normal fonts for the text.
Neither one cares about the resolution of the screen, and both of them are higher resolution than the iPad 1/2 screen. Both of them will look better on retina, and the ones with fonts as text (pretty much anything except the original TSR PDFs) will look great on Retina.
Trust me, anything that was ever intended to be printed will look great on retina.