SIL Tai Dam Fonts
You may freely share these fonts and keyboards with others, but with the following restrictions:
Even though these fonts are freely distributable, SIL retains all copyright and ownership of the included fonts and keyboards and reserves the right to restrict their use and distribution at any time. They may be placed on bulletin boards, etc. but cannot be included in (or bundled with) any commercial product including hard disks or CD-ROMs without specific written permission.