separate layers in GeoPDF files from USGS
The USGS has started producing 24k topo quads in GeoPDF format. I suppose this is the replacement for the traditional paper quad maps that they are no longer updating. When I open one of the quad maps in Acrobat all the data from the map is neatly organized in layers, i.e. contours, hydrography, roads, background image. Upon opening the same file in Global Mapper v11 the layers are lost and it is just an image. I would dearly love to be able to use the USGS contours, hydro and road layers superimposed on a shaded relief background in a project I am working on. Is this possible? I have Global Mapper v12 (64 bit) but I apparently cannot open PDF files with that version so I have had to revert to v11 just to open the files. If this feature is not available, is there any chance it might be included in a subsequent update of Global Mapper?