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 SHAPEFILE: The Shapefile format requires both files (.shp and .shx) when you are uploading. The .prj and .cpg files are optional. The Shapefile driver trims attribute names to 11 symbols when you write data. The 11 symbols is max value for attribute name in SHP format. Optionally you can specify the following files: CPG, PRJ, QIX. The CPG file contains codepage for fields data. PRJ contains a custom spatial refernce system. The QIX file increases a speed with geomtries searching.
SHP is the file extension for one of the primary file types used for representation of ESRI Shapefile. It represents Geospatial information in the form of vector data to be used by Geographic Information Systems (GIS) applications. The format has been developed as open specifications in order to facilitate interoperability between ESRI and other software products.
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.