Background transparency

I would really like to render an image to a PNG file and have it so the background is transparent. This would greatly help me when I’m postprocessing individual layers. Is it possible to do this in blender?

yes it’s possible, in render buttons change the output to PNG and RGBA mode and click the Premul button (under Xparts)
this should save alpha to the PNG

Thank you. Greatly apreciated

wow that works well! :o