This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
PDF is -for the most part- a read-only format. While some limited alterations are possible, you can't extract the layout information. It's possible to extract the text they contain using libraries such as PDFBox and JPedal.
Ping & DNS - updated with new look and Ping home screen widget