guration properties or omit for defaults
  word: {
    heading: {
      fonts: [
        { level: 1, min_size: 24 },
        { level: 2, min_size: 16, max_size: 24 }
      ]
    }
  }
}, function (err, response) {
  if (err) {
    console.error(err);
  } else {
    console.log(JSON.stringify(response, null, 2));
  }
});</code></pre><p>See the <a href="https://github.com/watson-developer-cloud/node-sdk/tree/master/examples/document_conversion_integration.v1.js">Document Conversion integration example</a> abo