Global Mapper is more than just a viewer capable of displaying the most popular raster, elevation and vector datasets. It converts, edits, prints, tracks GPS and allows you to utilize GIS functionality on your datasets in one low-cost and easy-to-use software package.Global Mapper also includes the ability to directly access multiple online sources of imagery, topographic maps, and gridded terrain data. This includes access to worldwide high resolution color imagery from DigitalGlobe.