PNG Utilities REALbasic PlugIn
Copyright (c) 2003 Frank Condello.
All rights reserved.

PNG Utilities is covered under the same license as LoadSaveJPEG:

The source code to PNG Utilities is provided free of charge, and may be used without credit. However, any changes to the source should be contributed back so that they can be included in a future release.

Please send changes to: <developer@chaoticbox.com>

NOTE: The libpng and zlib libraries are included under their respective license agreements, copies of which are included elsewhere in this distribution.