All you need is a GIS file in any of the supported formats:
- kml, kmz
- geojson, json, topojson
- shp, dbf, shx, cpg, prj, qix
- mif, mid
- tab, map, id, dat
- gdb, gdbtable, gbdtablx
- tif, geotiff
Notice to OSM: The OSM format can contain a large tree of nested tags. As a result, The OSM driver creates own attribute for each branch of the tree.
The OSM format is specific to OpenStreetMap. The OpenStreetMap project maintains a free database of the world's streets.
PNG, Portable Network Graphics, refers to a type of raster image file format that use loseless compression. This file format was created as a replacement of Graphics Interchange Format (GIF) and has no copyright limitations.