Adding arrowheads to lines
The Line Gallery contains several styles and sizes of arrowheads and tails. The size of arrowheads and tails is relative to the line width. Making the line thicker automatically makes the arrowhead or tail bigger.
To add an arrowhead to a line
1. Select the line (see Selecting objects).
2. From the Utilities menu, choose Line Gallery.
3. Scroll in the gallery to the Arrowheads section.
4. Double-click on the arrowhead or tail in the gallery.
Tips
Double-clicking on an arrowhead applies it to the end of the line. Double-clicking a tail applies it to the start of the line. To apply to the other end of the line, hold down CTRL and double-click. Alternatively you can reverse the line direction.
You can also drag-and-drop an arrowhead or tail from the gallery onto the start or end of any line (selected or unselected).
Arrowheads are the same color as the line. Making the line invisible, also makes any arrowheads on the line invisible.
Note:
You cannot apply arrowheads to a line with a brush or stroke shape already applied.