I do not have wifi at work, and I do not want to be changing SD cards. The pdfs I read, very often require only a few seconds of my time, and if I had to save things into a SD card, take out the SD card from my PC, put it into the Edge ... I would not bother, and I would end up reading the pdf in my PC, which defeats the whole purpose of the edge.

There is internet at work, but with a cable (I cannot have internet via cable with edge, right?).

The ES solution, does it require internet?

The dropbox solution, does it require internet?

Thank you for all the answers.