Can't save alpha channel suddenly? What gives?

03-19-2006

I have Photoshop 8.0 (CS) and have various sprites on a 1024*1024 canvas.

Most of the canvas is transparent and looks fine. Usually I would save the end result as a ".png" which would have the alpha channel ticked and the resultant image have RGBA.

I loaded up a ".PSD" as usual and did then again after a few months and suddenly it doesn't want to save the alpha channel.

It's really annoying as I have wasted a day trying to get it to work again without success.

I even loaded up an existing project where I had no problems just saving to ".PNG" and getting an alpha channel and now it too wants to save as 24 bit with no alpha.

Any ideas?

the-negative · 03-19-2006

Hmm, maybe you deleted the alpha channel in the process (NOTE: PSD supports native compatibility with transparencies) or flattened the image.