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Please see The HDF Group's new Support Portal for the latest information.

Licenses and Copyrights

The HDF Group distributes a variety of HDF technology products with BSD-style open source and commercial licenses. Licenses for some of the most popular downloads are included below.

BSD-style Open Source:

Copyright and license statements can be found in the COPYING file at the top level of the source code for open source software.


The HDF Group owns the products listed above and controls the licensing terms. Some were developed in whole or in part by the HDF team while it was at The National Center for Supercomputing Applications (NCSA) at the University of Illinois. The University of Illinois transferred ownership of those products and all associated licensing rights to The HDF Group upon its spin-off from NCSA and the University in 2006.

Products owned and distributed by The HDF Group carry the following copyright:
     Copyright 2006, The HDF Group.

Products first developed at NCSA and the University of Illinois also include a University statement:
     Copyright 1986-2006, The Board of Trustees of the University of Illinois.

If you have any questions, please contact us.