I need to generate some map images for use in a web application, using the Nat Geo base map, an ocean contour layer and some points plotted from a KML file. I have the map working OK using the 3.18 JS library, but I don't want a dynamic, tiled image returned, just a single PNG or JPG image that I can then save locally. Is this possible? New to ArcGIS and mapping in general! Thanks.