I was wondering if there is a way to expand a fill, outset a shadow or something, around a PNG with transparent background.

Right now I am using Fill + Simple Choker to expand the contour + CC Composite to bring it to the bottom, and sort of works, but I can expand the outline only a few pixels, like less than 100. Ideally, I'd like to animate it, so I can't just add the outline in Photoshop!

Is there an alternative way to do that? Thank you in advance.

outline around opaque pixels

1 Answer 1


Try using Layer--> Auto-trace to tracing around the alpha. It will generate a mask which you can then expand.

Or you could use a Layer Style to get a similar effect with a drop shadow or glow effect.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.