When I edit my GeoTIFF image in Photoshop or other applications, and then save the result the geotiff information is lost. How can I avoid this?
If a given applications does not support the GeoTIFF tags it will generally discard them when reading a GeoTIFF image and they won’t be present after a save. However, it is possible to save the GeoTIFF metadata and reapply it to the image later using commandline utilities distributed with libgeotiff. Given a GeoTIFF file named original.tif, and a modified file (modified.
If a given applications does not support the GeoTIFF tags it will generally discard them when reading a GeoTIFF image and they won’t be present after a save. However, it is possible to save the GeoTIFF metadata and reapply it to the image later using commandline utilities distributed with libgeotiff.
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