A Geospatial PDF refers to a Portable Document Format (PDF) with certain geospatial encoding that relates a region on a PDF document page to a region in physical space. The establishment of this relationship is a process called georeferencing. The georeferencing metadata in the provided files uses the Adobe PDF 1.7 specification for writing geospatial PDF files.
The creation of Geospatial PDFs has enabled the new 2012 Atchafalaya River and outlets to Gulf of Mexico Navigation Chart Folio to be imported into location aware applications.
Avenza Systems’ free Apple iOS application called PDF Maps allows users to download USACE chart files and view them on an iOS device and received real time GPS locations. The Upper Mississippi River (Minneapolis, MN to Cairo, IL) and the Atchafalaya River Charts are currently available in the application store.
NOTICE: These Geospatial PDF Navigation charts are provided for informational purposes only. They do not meet criteria as navigational products suitable for navigation.
For more information, including limitations visit Avenza Systems’ Website - http://www.avenza.com/pdf-maps