I might be able to do this using the Web Browser widget. It occured to me after posting, although I’ll need to test it. Hopefully it has the ability to read PDF’s which all web browsers should be able to
Edit: After testing, the web browser widget does in fact show the directory, however, when the URL is pointed to the .pdf, nada, just a blank “screen”… or would that be a blank widget? Confusing, I know.
One other thing was that text readability in the web browser, at “book sizes” in VR makes the text almost unreadable. The DPI of the Rift just isn’t high enough :\