What license does GDAL/OGR use?
GDAL/OGR library is distributed under the terms of X11/ MIT License. It is intended to give you permission to do whatever you want with the GDAL source code: download, modify, redistribute as you please, including building proprietary commercial software, no permission from Frank Warmerdam, OSGeo Foundation or anyone else is required. A few portions of GDAL is under slightly different terms. For instance the libpng, libjpeg, libtiff, and libgeotiff license terms may vary slightly though I don’t think any of them differ in any significant way. Some external libraries which can be optionally used by GDAL are under radically different licenses.
