Aligning Maps to Grid

[Quintain]

Does anyone have any suggestions on methods to ensure alignment of a 3rd party created map (perhaps one scanned in from a module) with the grid so that elements in the map line up properly?

[Zacchaeus]

This is the Map aligning utility that you seek https://www.fantasygrounds.com/forums/showthread.php?19813-Map-Align-Utility-to-scale-and-align-map-to-grid