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OTF file format

Extension.otf
Categorydocuments
Description.otf (OpenType Font) The .otf format is a scalable font format developed jointly by Adobe and Microsoft. OpenType fonts are used for both screen and print and support advanced typographic features like ligatures, small caps, and multiple numeral styles. These fonts can include an extended character set and layout features, making them suitable for international typography and complex script languages. OpenType fonts are widely compatible with both Windows and macOS systems and are commonly used in professional publishing and graphic design.
Technical detailsThe `.otf` (OpenType Font) format, co-developed by Microsoft and Adobe, is a scalable font format that enhances TrueType and PostScript Type 1 fonts. OTF fonts can be resized without losing quality and include advanced typographic features such as ligatures and small caps, making them suitable for complex and non-Latin scripts. These fonts, which contain a wide range of glyphs, are either based on CFF (Compact Font Format) for smaller file sizes and crisp screen rendering, or TrueType outlines. OTF is Unicode-compliant for support of multiple languages, compatible across different platforms, and includes a Variable Font format that allows for various styles within a single file. It also supports font-specific DRM for regulated licensing. Widely used in both digital and print typography, OTF fonts play an essential role in PDFs and other document formats, and are favored by graphic designers and digital content creators for their versatility and comprehensive typographic features.