and redistributed freely" given that the license terms are met. The license is copyleft and all derivative works must be distributed under the same license. Documents that use the fonts are not required to be licensed under the Ubuntu Font Licence. Fedora and Debian have reviewed this license and converged on interpreting it as non-free due to incomplete or ambiguous use and modification permissions. See also FF Dax, a similar spurless sans-serif font Ubuntu Titling font Open-source Unicode typefaces GPL font exception SIL Open Font License References External links Ubuntu Font Family main page Ubuntu Font Family on the Ubuntu Wiki Humanist sans-serif typefaces Unicode typefaces Corporate typefaces Open-source typefaces Ubuntu Typefaces and fonts introduced in 2010 Dalton Maag typefaces