Notepad plus plus version 6.4 editor does not provide an interface to control the print font size.

To reduce the default print font size, you may add a macro to ‘shortcuts.xml’ file – (notepad++ can’t edit and save on its own ‘shortcuts.xml’ , use another text editor)

<Macro name=”smaller_print” Ctrl=”yes” Alt=”yes” Shift=”no” Key=”100″>
<Action type=”0″ message=”2146″ wParam=”-2” lParam=”0″ sParam=”” />

use  wParam=”-4″  for even smaller font.