Global Mapper v25.0

Reprojecting/Exporting raster imagery is deleting the source imagery?

My source GeoTIFFs are being deleted after reprojecting/exporting to newly tiled GeoTIFFs.  I am very new to GM, but wasn't expecting source data to go missing or be deleted after export?  Thanks in advance.


  • bmg_bob
    bmg_bob Global Mapper Programmer

    That doesn't sound right. I suggest that you contact Blue Marble Support directly via email ( Please include a detailed description of your workflow, including screen captures of the options you use when exporting your GeoTIFF files, and data that can be used to reproduce the problem.  Thanks.

  • Thanks Bob.  I got an email into them. Here is my workflow in case anyone has any thoughts.

    My workflow is as follows:

    1-      Create new map catalog  and add source GeoTIFFs

    2-      Add grid shapefile for tiling

    3-      Define the projection

    4-      Select grid tiles for export with digitizer tool

    5-      Export to new output location (different than source directory)


    See attached screenshots for GeoTIFF export options used during export: