Index: magnolia-module-imaging/src/main/java/info/magnolia/imaging/operations/load/AbstractLoader.java
===================================================================
--- magnolia-module-imaging/src/main/java/info/magnolia/imaging/operations/load/AbstractLoader.java	(revision 31080)
+++ magnolia-module-imaging/src/main/java/info/magnolia/imaging/operations/load/AbstractLoader.java	Thu Jan 21 23:42:00 CET 2010
@@ -45,11 +45,11 @@
     }
 
     public BufferedImage apply(BufferedImage source, P filterParams) throws ImagingException {
-        if (source != null) {
-            throw new ImagingException("This operation currently does not support overlaying images");
-        }
+//        if (source != null) {
+//            throw new ImagingException("This operation currently does not support overlaying images");
+//        }
         final BufferedImage loaded = loadSource(filterParams);
-        final BufferedImage img = new BufferedImage(loaded.getWidth(), loaded.getHeight(), BufferedImage.TYPE_INT_ARGB_PRE);
+        final BufferedImage img = source != null ? source : new BufferedImage(loaded.getWidth(), loaded.getHeight(), BufferedImage.TYPE_INT_ARGB_PRE);
         final Graphics2D g = img.createGraphics();
 
         if (backgroundColor != null) {