To change the scale of the map, follow these steps:
- Select Map in the Contents window.
- In the Properties window, click the Scale tab.
- Specify the Map units per in. or Length (page units) of the X Scale and/or the Y Scale.
If you did stretch the map so that the map scale bar is incorrect or the axis labels are stretched, you can "undo" the stretching by selecting the map, clicking Home | Selection | Transform, setting the X Scale and Y Scale both to 1, and clicking OK.
Updated February 10, 2017