什么是TTF？TrueType字体格式解释
由苹果开发的轮廓字体标准，广泛用于系统和文档字体。
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What is it?
TTF (TrueType Font) is a scalable outline font format originally developed by Apple in the late 1980s and shipped with Mac System 7 in 1991. It was created as an alternative to Adobe's PostScript Type 1 fonts and was later licensed to Microsoft, which made it a standard font format in Windows.
Rather than storing fixed bitmaps, a TrueType font describes each glyph as a set of outlines made from straight lines and quadratic Bezier curves. These outlines can be scaled to any size and rendered (rasterized) on screen or in print, with optional 'hinting' instructions that improve clarity at small sizes.
Technical Specifications
Pros & Cons
Advantages
Glyphs are stored as mathematical outlines, so text stays sharp at any point size without separate bitmap files.
TrueType is supported natively by virtually every modern operating system and application, making TTF one of the most portable font formats.
TrueType's instruction set lets font authors fine-tune how glyphs snap to the pixel grid for crisp rendering at small sizes.
Apple and Microsoft publish detailed specifications, allowing wide tooling and library support.
Disadvantages
TTF files are uncompressed, so they are larger than WOFF/WOFF2 and less ideal for delivery over the web.
Plain TrueType lacks some of the advanced layout features that OpenType's later additions provide unless extended.
Unlike web font wrappers, TTF stores font data without compression, increasing download size.
When to Use It
TrueType fonts are used wherever scalable, broadly compatible typefaces are needed.
操作系统字体
Windows, macOS, and Linux ship many of their core interface and document fonts as TrueType files.
办公和打印文档
Word processors and design tools rely on TTF for consistent rendering across screen and print.
网页嵌入（使用@font-face）
TTF can be referenced via CSS @font-face, though compressed WOFF2 is preferred for production sites.
How to open a TTF file
Software for working with TTF files can be categorized into professional design tools, free/open-source applications, browser-based utilities, and built-in system tools. Professional tools like Adobe Illustrator cater to graphic designers needing advanced features, while open-source options like FontForge appeal to developers and hobbyists. Browser-based tools provide quick access without installation, and built-in tools are suitable for basic viewing and installation of fonts.
When choosing software for TTF files, important factors include feature fidelity, whether the tool is for editing or viewing, cost, platform compatibility, and export capabilities. Users should consider if they need extensive editing features or simple viewing, as well as whether they require cross-platform support. In some cases, converting TTF to other formats may be necessary for compatibility with specific applications.
FontForge 2023
FontForge is an open-source font editor that allows users to create, edit, and convert TTF files. It supports a wide range of font formats and provides detailed control over font metrics and glyph design.
- Create and edit TTF fonts from scratch
- Import and export multiple font formats
- Advanced glyph editing tools
- Support for OpenType features
- Batch processing for font conversion
- Comprehensive editing capabilities for TTF
- Free and open-source with no restrictions
- Cross-platform support for various OS
- Steeper learning curve for beginners
- User interface can feel outdated
可导出为： OTF, SVG, WOFF, EOT
适合： FontForge is ideal for users needing a powerful, free tool for comprehensive TTF editing and font creation.
访问 FontForge →Glyphs 3.1
Glyphs is a professional font design application tailored for macOS users, focusing on TTF and other font formats. It offers a user-friendly interface and powerful tools for creating and modifying fonts with high fidelity.
- Intuitive interface for glyph design
- Real-time preview of font changes
- Support for variable fonts
- Extensive kerning and spacing tools
- Export to multiple font formats including TTF
- Highly intuitive and user-friendly design
- Real-time feedback during font editing
- Robust support for modern font features
- Only available for macOS users
- Higher price point compared to alternatives
可导出为： OTF, WOFF, WOFF2, SVG
适合： Glyphs is perfect for professional font designers on macOS who require advanced features and a polished interface for TTF editing.
访问 Glyphs →BirdFont 3.8.1
BirdFont is a free font editor that allows users to create and edit TTF fonts with a focus on simplicity and ease of use. It provides essential tools for drawing glyphs and managing font metrics.
- Draw vector graphics for glyphs
- Edit font metrics and kerning
- Export TTF and OTF fonts easily
- Support for importing SVG files
- Basic animation tools for previewing fonts
- User-friendly interface for beginners
- Affordable one-time payment for full version
- Cross-platform compatibility
- Limited advanced features compared to competitors
- Some tools may feel basic
可导出为： OTF, SVG, EOT, WOFF
适合： BirdFont is suitable for beginners and casual users looking for a straightforward tool to create and edit TTF fonts without a steep learning curve.
访问 BirdFont →FontCreator 14.0
FontCreator is a powerful font editor for Windows that allows users to create and modify TTF fonts with precision. It offers a range of advanced features for professional font design and editing.
- Comprehensive glyph editing tools
- Support for TrueType and OpenType formats
- Advanced metrics and kerning adjustments
- Font validation and error checking
- Batch export capabilities
- Professional-grade features for TTF editing
- Robust validation tools to ensure font quality
- User-friendly interface with extensive documentation
- Windows-only platform limits accessibility
- Higher cost compared to open-source options
可导出为： OTF, WOFF, EOT, SVG
适合： FontCreator is ideal for professional Windows users seeking a comprehensive tool for TTF font creation and editing with advanced features.
访问 FontCreator →Convert TTF Files Free
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