See for a detailed list of free/libre and open source software resources provided by SIL. We have been thinking about more open and participative models for a while, for example through our partnerships with UNESCO ( Initiative and our work on the Gentium typeface. SIL International serves language communities worldwide, building their capacity for sustainable language development, by means of research, translation, training and materials development. It draws inspiration from concepts and elements found in other licenses, but our improvements in the specific area of fonts have made the licensing model work better than other approaches currently in use. The OFL meets the specific needs of typographic design and engineering as well as the gold standards of the FLOSS (Free/Libre and Open Source Software) community, namely the cultural values and guidelines from the FSF 1, the Debian Free Software Guidelines 2, as well as the Open Source Definition 3. It encourages shared value, is not limited to any specific computing platform or environment, and can be used by other organizations or individuals. It enables font authors to release their work under a common license that allows use, bundling, modification and redistribution. The OFL provides a legal framework and infrastructure for worldwide development, sharing and improvement of fonts and related software in a collaborative manner. The SIL Open Font License (OFL) is a free, libre and open source license specifically designed for fonts and related software based on our experience in font design and linguistic software engineering. Please get in touch with us if you have more questions. There is also a separate discussion paper on Web Fonts and Reserved Font Names. There is a new version of the OFL-FAQ ( version 1.1-update6) available based on feedback from the wider open font design community. Use the OT specifications to check in what table which information is stored in a font.Īlso, and this is probably the most important thing: check your license if you are allowed to change anything at all in the fonts you have.New version of the OFL-FAQ available: version 1.1-update6 Editing the wrong thing, or not all the things in fonts can render them unusable. However: in all the cases you should know what you’re doing. It’s cheap (free), requires a bit more work but is quite fun when stringed up with shell and python build scripts to batch edit bigger amounts of font files. Single tables can be merged back into the original font, whole font TTX dumps get converted back to completely new binary font files. TTX can dump all (or specific) tables of a binary font into readable XML files which can be edited in a text editor. Nice touch: you can side to side compare/edit multiple files.Ĭheap (free) alternative. Quite a posh paid app that lets you access and edit all the tables inside a font. The newly produced font file will work but will have lost a lot of features.Īs a font engineer I use these tools on a daily basis to work with binary font files without destroying them: Most of the time you’ll lose big parts of your OT Layout Features (glyph replacement, mark positioning, sometimes even the Kerning). When opening a binary font file in an editor the editor tries to reverse engineer the font, and that almost never works out. It’s better to use specified tools used in font production Workflows.
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