Export the paper.js view as SVG by rendering to http://svgkit.sourceforge.net/web/SVGCanvas.html

paper.SVG.js

// SVGCanvas.prototype.transform = SVGCanvas.prototype.translate;
// SVGCanvas.prototype.fillText = SVGCanvas.prototype.text;

paper.View.prototype.toSVG = function() {
  var svgContext = new SVGCanvas(this.canvas.width, this.canvas.height);
  
  var oldCtx = this._context;

  this._context = svgContext;  
  this.draw(false);

  this._context = oldCtx;
  
  // Optional serialization of the SVG DOM nodes
  var serializer = new XMLSerializer();
  return serializer.serializeToString(svgContext.svg.htmlElement);
};