To print, just choose the number of copies, and click the "Make PDF!" button. A PDF file will be generated containing all of the copies you requested.

If you want the questions generated in a specific way, you can override the default behavior in the "Question Order" field. If you choose "Use random order for questions", each copy's questions will be randomized.

You will need to have the Adobe Acrobat Reader installed to open the file. You can download it here.