--- /dev/null
+render_base64
+=============
+This command allows you render a web page to an image buffer and returns the base64 encoded representation of the image.
+
+The supported formats are:
+
+* PNG
+* GIF
+* JPEG
+
+##Commmand arguments:
+ 1. image_format
+ 2. full
+ * `true` for rendering all the page, `false` if we are going to use a selection
+ 3. selector
+ * If full is `false` then you have to specify the CSS selection you want to render, internally we will use document.querySelector.
+
+##Full page render request:
+```json
+{
+ "name" : "render_base64",
+ "args": [
+ "png", true, null
+ ]
+}
+```
+##Part of a page render request:
+```json
+{
+ "name" : "render_base64",
+ "args": [
+ "png", false, "body > div.wrapper > div.main.clearfix"
+ ]
+}
+
+```
+
+##Response:
+A successful render_base64 command will reply with:
+```json
+{
+ "response": "iVBORw0KGgoAAAANSUhEUgAABAAAAACYCAYAAAB6Z5u+AAAABHNCSVQICAgIfAh......"
+}
+```