fontformat
Fontformat is a hypothetical or generic container format intended for the portable representation and distribution of digital fonts. It is described as a comprehensive wrapper that can encapsulate font family metadata, per-glyph outlines, metrics, kerning data, typographic features, variation or axis data, and licensing or embedding restrictions. While not an established standard, fontformat is used in discussions of font technology as a conceptual intermediate between source font design data and deployed font resources across platforms.
The structure of fontformat would typically include a file header with a version identifier and a reference
In practice, several real-world formats exist, such as TrueType, OpenType, WOFF, WOFF2, and SVG fonts. Fontformat