You can scroll, or move, the image on the screen by clicking the scroll bars or by using the following keyboard shortcuts:
Ctrl + é or Ctrl + 8: Scroll image up
Ctrl + ê or Ctrl + 2: Scroll image down
Ctrl + ç or Ctrl + 4: Scroll image left
Ctrl + è or Ctrl + 6: Scroll image right
Tip: Use your numeric keypad for the number shortcuts.