Changing Default Geospatial Measurements in Acrobat DC
Not only can you change the default geospatial measurement markup settings within Acrobat Pro from miles to kilometres but from miles to nautical miles, metres or feet. You can even change the Latitude and Longitude readings from degrees and decimals to degrees, minutes and seconds; areas from square miles to acres, hectares etc.
To change the default setting from miles to feet, go to Preferences under Acrobat, then scroll down to Measuring (Geo), select this. Then scroll down to the use default distance unit and select feet from the drop-down list, which is accessible by clicking on the arrows...