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.