Here is how you can easily draw an arrow using the GIMP software.
1) First install GIMP. (how? damm easy!)
Open Ubuntu Software Center, type “GIMP” and press install. orĀ Open a terminal and type sudo apt-get install gimp
2) Download the arrow plug in (here)
Open a terminal and type
> gksudo nautilus (this opens a filesystem browser in administrator mode!)
Then copy that file (the plugin.scm) to the /usr/share/gimp/2.0/scripts folder.
3) Open GIMP
Draw a bezier curve (shortcut is “b”) and go to Tools and Click on Arrow. It will create an arrow with the bezier curve.
Cool. GIMP rocks.