This is part 2 of a 3-post tutorial that walks through process of georeferencing a historical map and using it in Geoserver and Neatline. Check out part 1, which covers rectification in ArcMap.
In the first part of this series, we brought a static image into ArcMap and converted it onto a georeferenced .tif file. In this article, we’ll post-process the image in Photoshop to get it ready to be loaded into Geoserver.