How to convert IPython notebooks to PDF and HTML?

I want to convert my ipython-notebooks to print them, or simply send them in html format. I have noticed that there exists a tool to do that already, nbconvert. Although I have downloaded it, I have no idea how to convert the notebook, with nbconvert2.py since nbconvert says that it is deprecated. nbconvert2.py says that I need a profile to convert the notebook, what is it? Does there exist a documentation about this tool?