> Quote - Example.  Click on the image for a larger view > > This image I rendered over white instead of black because antialising would have caused the dress to have a black border if I had used "render over black"

Now I have added a drop shadow in PSP XII 
If you notice on the white background section you see the white outline around the figure.
As long as it has a black background behind the figure and the drop shadow is added you do not see it.

I hope I am explaining this correctly. I don't know any other way to explain it.
Many thanks for your examples and help.
Becky