Tradsinger.
Certainly I'll help you.
Read the help file I translated for you! ;-)   

- and there you will see that you select the tune you want, or the file of tunes, or your selection of tunes in the 'temporary list', click on the icon thingy of a printer which leads you to the dialogue box where you can change some stuff (scale,size title font etc), choose to print it quick and dirty (direct printing) or posh (PDF,BMP,PNG,JPG).

There are other options available for individual tunes and the temporary list, such as exporting in various other ways e.g. Midi.
Make your selection and the relevant menu becomes available, then choose 'export tune' and a dialogue box appears.