ExifTool > Developers

ExifTool License

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Phil Harvey:
ExifTool uses the Perl Artistic License, which allows ExifTool to be embedded into a commercial application without charge, provided that "no overt attempt is made to make this Package's interfaces visible to the end user of the commercial distribution"  (This means that you must make money from the features of your software, and not by providing a thin shell over ExifTool.)

However, if ExifTool adds significant value to your commercial application, it is fair to expect a proportional donation in recognition of the hard work that has gone into ExifTool, although this is not required.

- Phil

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