Measuring the Distance or Size
1. Activate the Dimension tool.
2. Touch at the first point and drag the finger to start drawing a dimension line.
3. Control the position of the tool using the magnification glass.
4. Detach your finger off the screen at the second point.
5. Tap on the Complete button in the toolbar to deactivate the Dimension tool. Otherwise the tool will remain activated permanently, and you will be able to add more dimensions.
To adjust the position of the dimension line, tap on it and drag one of its three handles.