What is an OTF file?

The OTF format in brief: what it is, what it is used for, and how to convert it.

OTF: conversion steps

  1. Upload your OTF file to start.
  2. Convert OTF to TTF.
  3. Download the OTF file.

About OTF files

the OpenType font format

OpenType (OTF) is the font format Microsoft and Adobe built on TrueType, adding advanced typographic features and optional PostScript (CFF) outlines.

Professional typography and desktop publishing: ligatures, small caps and many languages in one font file.

OTF: what conversion changes

Converting OTF rewrites outlines.

OTF: settings to change

Before you convert OTF files, you can adjust: Subset unicode ranges, Keep hinting, and Keep layout features.

Limits of the OTF format

Font licences often restrict conversion and web use, so check the licence before converting a font.

Common questions about OTF

Should I pick OTF or TTF for my project? Both carry the same outlines, but OTF adds advanced typography like ligature sets while TTF remains the safest bet for older software.

Why convert a font to OTF? For professional typography: OpenType adds extended glyph sets, ligatures and better cross-platform hinting.

Convert OTF files

Guides and tools for OTF