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@magzgtz/rtf-to-html

v1.1.0

Published

Convert RTF strings to HTML, preserving formatting, styles, and hyperlinks

Downloads

274

Vulnerabilities

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Links

Git

Maintainers

magzgtzmagzgtz

Keywords

rtfhtmlrich-textconvertertypescript

Readme

@magzgtz/rtf-to-html

A TypeScript library that converts RTF (Rich Text Format) strings into HTML, preserving text formatting, styles, and hyperlinks.

Features

  • Bold, italic, underline, and strikethrough text
  • Headings (h1, h2) and paragraphs
  • Font families, font sizes, and text colors
  • Text alignment and indentation
  • Hyperlinks
  • Superscript and subscript
  • Inline CSS styles on all output elements
  • Promise-based async API

Installation

npm install @magzgtz/rtf-to-html

Usage

import { rtfToHtml } from "@magzgtz/rtf-to-html";

const rtf = String.raw`{\rtf1\ansi{\fonttbl\f0\fswiss Helvetica;}\f0\pard This is {\b bold} and {\i italic} text.\par}`;

const html = await rtfToHtml(rtf);
console.log(html);

Output

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <style>
      .body { margin-left: 0pt; ... }
    </style>
  </head>
  <body>
    <p>
      <span>This is </span><span><strong>bold</strong></span
      ><span> and </span><span><em>italic</em></span
      ><span> text.</span>
    </p>
  </body>
</html>

API

rtfToHtml(rtf: string): Promise<string>

Converts an RTF string to an HTML document string.

| Parameter | Type | Description | | --------- | -------- | ------------------ | | rtf | string | A valid RTF string |

Returns: Promise<string> — a full HTML document as a string.

Throws: Rejects with an error if the RTF input is malformed or cannot be parsed.

Supported RTF Elements

| RTF Control | HTML Output | | -------------------- | ----------------- | | \b | <strong> | | \i | <em> | | \ul | <u> | | \strike | <s> | | \super | <sup> | | \sub | <sub> | | \par | <p> | | Heading 1 style | <h1> | | Heading 2 style | <h2> | | \field (HYPERLINK) | <a href="..."> | | Font, size, color | inline style="" |

Development

Prerequisites

  • Node.js 18+
  • npm

Setup

git clone https://github.com/magalyg/rtfToHtml.git
cd rtfToHtml
npm install

Run the CLI demo

npm start

You will be prompted to paste an RTF string. The converted HTML is printed to stdout.

Build the library

npm run build

Compiled output lands in dist/.

License

ISC