Licences

The application, this documentation, and the third-party work both build on

The application

Slice is free software under the GNU General Public License, version 3. The full text is in LICENSE.

It carries that licence because the program it reimplements does: Slice by Source Foundry (Christopher Simpkins) is GPL-3.0, and this project’s interface and behaviour derive from it.

This documentation

The documentation is distributed under the same terms as the application. The manual’s source is docs/manual/manual.md; the PDF and this website are both generated from it.

Third-party work

Recorded in full in thirdparty/.

The Slice icon is the original project’s, carried over so this version is recognisable as the same tool. It is a derivative of the “cheesecake” icon by flaticon.com, used under the Flaticon license, which permits commercial and personal use, modification and derivative works.

Recursive, by Stephen Nixon, is used for the wordmark and as a test fixture, under the SIL Open Font License 1.1. The wordmark font is the subset the original Slice used: the variable font sliced at MONO=0, CASL=0.5, wght=800, slnt=0, CRSV=1 — with Slice — and then subset to the letters of the word.

The Rust dependencies are Apache-2.0 or MIT, which GPL-3.0 permits combining with. cargo tree lists them in full.

Unlike the original, this version does not ship IBM Plex Mono: the interface asks for the reader’s own monospace font instead of shipping one, which saves every visitor a download for a face most systems already have.

What the licence means for a font you slice

Nothing. The GPL covers Slice, not its output. A font you put through Slice comes out under whatever licence it went in with, and that licence is your responsibility — most open font licences, the SIL OFL included, have conditions about modification and naming that apply to an instance you generate. The OFL in particular requires that a modified version not use a Reserved Font Name, which is worth checking before you publish an instance.