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US Topo FAQs - 31 Found
What can I do with a PDF file with geospatial extensions (GeoPDF®)?
Users can interact with the map on a computer screen without GIS software or expertise. For example, ground coordinates in a variety of reference systems can be displayed, and ground distances can be measured. Full functionality requires Adobe Reader or Acrobat software with the TerraGo Technologies Toolbar. Users who are not interested in ground coordinate systems or GIS-like functions can still view and print the maps as plain PDF documents.