--- a/ImageEditor.st	Tue Apr 08 18:30:47 2014 +0200
+++ b/ImageEditor.st	Wed Apr 09 00:28:42 2014 +0200
@@ -4929,10 +4929,12 @@
                 ^ self warn:(resources string:'Conversion failed !!')
             ] do:[
                 newImage := Image newForDepth:depth.
-                newImage width:oldImage width height:oldImage height depth:depth.
-                newImage colorMap:newColorMap.
-                newImage photometric:#palette.
-                newImage bits:(ByteArray new:(newImage bytesPerRow * newImage height)).
+                newImage 
+                    width:oldImage width height:oldImage height depth:depth;
+                    colorMap:newColorMap;
+                    photometric:#palette;
+                    bits:(ByteArray new:(newImage bytesPerRow * newImage height));
+                    mask:oldImage mask.
 
                 oldImage colorsFromX:0 y:0 toX:(oldImage width-1) y:(oldImage height-1) do:
                 [:x :y :clr |
@@ -4953,7 +4955,7 @@
                 image := newImage
             ].
         ] do:[ 
-            image := newImage fromImage:oldImage.
+            image := newImage fromImage:oldImage photometric:newImage photometric.
         ].
 
         (aMode asString startsWith:'mask') ifTrue:[
@@ -5365,7 +5367,7 @@
         ^ self
     ].
     depth := oldImage depth.
-    colorMap := oldImage colorMap asArray asSet.
+    colorMap := oldImage colorMap asArray.
     usedColors := oldImage realUsedColors.
     usedColors size == colorMap size ifTrue:[
         self information:'Compress colorMap: Colormap already compressed - no compression.'.