otf
What is a .otf file?
font/otf
OTF (OpenType Font) is a scalable font format built on the TrueType structure but able to carry PostScript/CFF cubic-Bezier outlines and advanced typographic features like ligatures and alternates. It supports large Unicode glyph sets and rich layout tables. It is a professional-grade format for desktop and web.
How to use a .otf file
Use an example OTF to test OpenType parsing, advanced layout-feature handling, glyph extraction, and font-conversion or subsetting pipelines.
Download example .otf files
- OTF — Novus Sans SampleThe Novus Sans Sample demonstration typeface as OpenType/CFF outlines — one member of a TTF/OTF/WOFF/WOFF2 conversion set built from scratch with fontTools. Original and free to use; a fixture for testing font loading, subsetting, and conversion.
- OTF — Variable Font with CFF2 (cubic) OutlinesA variable font whose outlines are CFF2 rather than glyf, so the variation deltas live inside blended charstrings and there is no gvar table at all. The case that breaks tools which assume every variable font is TrueType-flavoured. Original typeface, free to use.
- OTF — Colour Font, COLR Layers over CFF OutlinesCOLR and CPAL over CFF rather than glyf outlines. COLR is outline-agnostic by specification, but plenty of tooling assumes colour fonts are TrueType-flavoured — this is the file that finds out. Original typeface, free to use.
- OTF — Web Container Source, CFF (Type 2) OutlinesThe uncompressed CFF (Type 2) source for this container set. Every WOFF and WOFF2 file in the group is packed from exactly these bytes, so a compression comparison is measuring the container and nothing else. Original typeface, free to use.
- OTF — CFF (Cubic) OutlinesThe same design in CFF outlines: cubic Type 2 charstrings with no glyf and no loca. The half of the pair that catches code assuming every OpenType font is TrueType-flavoured. Original typeface, free to use.