One way is to make the layer a Smart Object.
I just tried that and it didn’t affect the alpha channel at all.
Any other ideas?
Dean
Alpha channels are not connected to layers in any way – they are just extra channels independent of the color content of the image (well, unless you’re using a spot color overlay).
Now, if you meant Transparency/Opacity instead of an alpha channel – that is part of the layer and scales automatically.
No. I meant alpha channel. So there is no way to scale them both at the same time?
Nope. They’re not logically connected.
All you have to do is do your Transform on the image layer and then activate your Alpha channel and go to the the Transform>Transform Again command and your alpha will be transformed the same.