How do I create a straight line with a drawing tool?
Sometimes it is difficult to draw a perfectly straight line just by using a mouse or touchpad. To draw such a line, select any of the Drawing Tools from the Toolbox. Start drawing a straight line, as much as you are able, and when you reach the place where the line needs to end, stop and hold down the element for a second. The line will then automatically straighten.
Figure 1 Drawing a straight line
You can also do this with the Marker and Highlighter Tools.