If there's a single file type out there that makes life simpler, easier, and more efficient for lawyers, it's the humble PDF. Forget .docs or .ppts. The portable document format (that's the PDF in PDF) blows them all away.
It's simple to use, with the ability to add complexity. It's file agnostic, allowing you to bring multiple file types together in a single document. And it does a good job at securing files and metadata. Here's how to put the PDF's handy features to work for you.