Font.js (FontJS)

Font.js (FontJS) is library helping parse/encode and manipulate TrueType font files. In a future there is a plan to extend support to OpenType fonts as well.

Example

import * as fontjs from "fontjs";
import { SeqStream, ByteStream } from "bytestreamjs";

async function fontTest()
{
	const fontFetchResult = await fetch("./fonts/times.ttf");
	const fontFetchBuffer = await fontFetchResult.arrayBuffer();

	const font = fontjs.Font.fromStream(new SeqStream({ stream: new ByteStream({ buffer: fontFetchBuffer }) }));

	const fontStream = new SeqStream();

	const toStreamResult = font.toStream(fontStream);
}

Related

• TrueType Reference Manual
• OpenType Specification