freetype.txt 2.0 KB

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  1. FREETYPE LICENSES
  2. -----------------
  3. The FreeType 2 font engine is copyrighted work and cannot be used
  4. legally without a software license. In order to make this project
  5. usable to a vast majority of developers, we distribute it under two
  6. mutually exclusive open-source licenses.
  7. This means that *you* must choose *one* of the two licenses described
  8. below, then obey all its terms and conditions when using FreeType 2 in
  9. any of your projects or products.
  10. - The FreeType License, found in the file `docs/FTL.TXT`, which is
  11. similar to the original BSD license *with* an advertising clause
  12. that forces you to explicitly cite the FreeType project in your
  13. product's documentation. All details are in the license file.
  14. This license is suited to products which don't use the GNU General
  15. Public License.
  16. Note that this license is compatible to the GNU General Public
  17. License version 3, but not version 2.
  18. - The GNU General Public License version 2, found in
  19. `docs/GPLv2.TXT` (any later version can be used also), for
  20. programs which already use the GPL. Note that the FTL is
  21. incompatible with GPLv2 due to its advertisement clause.
  22. The contributed BDF and PCF drivers come with a license similar to
  23. that of the X Window System. It is compatible to the above two
  24. licenses (see files `src/bdf/README` and `src/pcf/README`). The same
  25. holds for the source code files `src/base/fthash.c` and
  26. `include/freetype/internal/fthash.h`; they were part of the BDF driver
  27. in earlier FreeType versions.
  28. The gzip module uses the zlib license (see `src/gzip/zlib.h`) which
  29. too is compatible to the above two licenses.
  30. The files `src/autofit/ft-hb.c` and `src/autofit/ft-hb.h` contain code
  31. taken almost verbatim from the HarfBuzz file `hb-ft.cc`, which uses
  32. the 'Old MIT' license, compatible to the above two licenses.
  33. The MD5 checksum support (only used for debugging in development
  34. builds) is in the public domain.
  35. --- end of LICENSE.TXT ---