Show full PHP documentation

Hello,

I've got an issue. One that should be easy to solve, but after reading the manual and searching the forums I just can't figure it out.

I got a PHP file with a lot of functions, each one with its PHPdoc block. If I go to that function and press Ctrl + Q it shows me the documentation for that function. Now... I want that for the full document, so I can print it. Is there a way to do this? If not, could you recommend me an external tool to do this?

Thanks in advance.