diff --git a/lib/Viewer.js b/lib/Viewer.js
index 5f01bf5e..144a8076 100644
--- a/lib/Viewer.js
+++ b/lib/Viewer.js
@@ -20,6 +20,48 @@ Viewer.prototype.importXML = function(xml, done) {
   });
 };
 
+Viewer.prototype.saveXML = function(options, done) {
+
+  if (!done) {
+    done = options;
+    options = {};
+  }
+
+  var definitions = this.definitions;
+
+  if (!definitions) {
+    return done(new Error('no definitions loaded'));
+  }
+
+  Model.toXML(definitions, options, function(err, xml) {
+    done(err, xml);
+  });
+};
+
+
+var SVG_HEADER =
+'<?xml version="1.0" encoding="utf-8"?>\n' +
+'<!-- created with bpmn-js / http://bpmn.io -->\n' +
+'<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Basic//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-basic.dtd">\n' +
+'<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" baseProfile="basic">\n';
+
+Viewer.prototype.saveSVG = function(options, done) {
+  if (!done) {
+    done = options;
+    options = {};
+  }
+
+  if (!this.definitions) {
+    return done(new Error('no definitions loaded'));
+  }
+
+  var svg = this.container.innerHTML;
+
+  svg = svg.replace(/<svg[^>]+>/, SVG_HEADER);
+
+  done(null, svg);
+};
+
 Viewer.prototype.importDefinitions = function(definitions, done) {
 
   if (this.diagram) {