Append

Allows you to specify an image, text, or a shape to append beside your original image. Any area created that is not covered by either image will be filled with fully transparent pixels.

If you add the IMQuery transformation to a policy, use the im variable, and select Append, you can use a query string to append an image, text, or a shape beside your original image using this policy. See Syntax and Examples for the syntax for the query string parameter.