Added optional size parameter to the Draw method that renders on a Graphics object.

Source/SvgDocument.cs

@@ -422,8 +422,9 @@ namespace Svg
         /// Renders the <see cref="SvgDocument"/> to the specified <see cref="Graphics"/>.
         /// </summary>
         /// <param name="graphics">The <see cref="Graphics"/> to be rendered to.</param>
+        /// <param name="size">The <see cref="SizeF"/> to render the document.</param>
         /// <exception cref="ArgumentNullException">The <paramref name="graphics"/> parameter cannot be <c>null</c>.</exception>
-        public void Draw(Graphics graphics)
+        public void Draw(Graphics graphics, SizeF? size = null)
         {
             if (graphics == null)
             {
@@ -431,7 +432,14 @@ namespace Svg
             }
 
             var renderer = SvgRenderer.FromGraphics(graphics);
+            if (size.HasValue)
+            {
+                renderer.SetBoundable(new GenericBoundable(0, 0, size.Value.Width, size.Value.Height));
+            }
+            else
+            {
                 renderer.SetBoundable(this);
+            }
             this.Render(renderer);
         }