I am trying to remove all RTF formatting from a document but when I do so it seems to keep images and styling (i.e. the Fonts etc.)

Here is my Code:

    function convertToPlain(rtf) {
    rtf = rtf.replace(/\\par[d]?/g, "");
    return rtf.replace(/\{\*?\\[^{}]+}|[{}]|\\\n?[A-Za-z]+\n?(?:-?\d+)?[ ]?/g, "").replace(/^\s\s*/, '').replace(/\s\s*$/, '');
}

var body = input[0].text.toString();

var content = convertToPlain(body.toString());  
var rq = <Test>{content}</Test>
next.xml = rq;

This does remove the RTF formatting but keeps all images and styling within the result.

Does anyone know how to remove the images and styling aswell?

Thanks