- XCF is designed for internal use by the Gimp while one is editing an
image but it is not supposed to be used for the "final" images to be
distributed to other people. Other (standard) formats such as PNG or
JPEG should be used if one wants to share and image with others. So
no one should use XCF as a file exchange format (except among Gimp
- This may be controversial, but ImageMagick has a BSD-style license
that includes the "advertising clause".
- ImageMagick is copyrighted by ImageMagick Studio LLC, a non-profit
organization. ImageMagick is available for free, may be used to support
both open and proprietary applications, and may be redistributed without
the GPL and this means that any code contributed to ImageMagick and
any improvements that could be done in that code cannot be re-used
later in the Gimp (maybe in a plug-in, but not in the core).