opentype.js是TrueType 和 OpenType 字体的javascript读写器。它可以让你从浏览器或node.js中获取文字的字母形式。

以下是一个示例。加载一个文字，然后将其展示在一个id="canvas"的画布上Canvas。

opentype.load('fonts/Roboto-Black.ttf', function (err, font) {      if (err) {           alert('Font could not be loaded: ' + err);      } else {          var ctx = document.getElementById('canvas').getContext('2d');          // Construct a Path object containing the letter shapes of the given text.          // The other parameters are x, y and fontSize.          // Note that y is the position of the baseline.          var path = font.getPath('Hello, World!', 0, 150, 72);          // If you just want to draw the text you can also use font.draw(ctx, text, x, y, fontSize).          path.draw(ctx);      }  }

在线示例请查看： the project website

特性

• Create a bézier path out of a piece of text.
• Support for composite glyphs (accented letters).
• Support for OpenType (glyf) and PostScript (cff) shapes.
• Support for kerning (Using GPOS or the kern table).
• Very efficient.
• Runs in the browser and node.js.

项目主页：http://www.open-open.com/lib/view/home/1420682212953