Comments on: Flash CS4 Export As 24bit+Alpha PNG Solution

By: Matt

Matt — Wed, 22 Dec 2010 18:31:37 +0000

Just had the same problem with a number of image sequences and couldn’t fix it by any of the means listed above. Wound up tracking down the offending symbol that was causing the glitch, recreating the symbol (in photoshop, in my case), and doing a symbol swap on all of the animations that needed fixing. In my particular instance, there were a lot of layers inside the offending symbol and a strangely-behaving alpha mask imported from Illustrator. Hope this helps someone out there!

By: Tob

Tob — Tue, 29 Jun 2010 08:10:43 +0000

Hi all! This stupid bug has been haunting me for a while now. I used to do it the hard way by converting the animation to multiple keyframes and then break apart every single object, which sometimes created unwanted graphic effects.

I finally found a pretty straight forward workaround!

1. Publish/preview your animation to swf.
2. Create a new flash document and import the preview swf to stage.
3. Export the animation to 24 bit PNG sequence with alpha channel.

Works like a charm!

I guess the reason it works is that the imported swf-file is rendered as multiple keyframes without symbols.

Good luck!

By: Kiwi

Kiwi — Thu, 21 Jan 2010 23:00:00 +0000

If you also choose ‘Export Movie’ and then choose ‘PNG sequence,’ this also resolves the horrible black-outline problem from version CS4. Better than me attempting to re-install CS3 after having installed CS4!

By: Travis Brainerd

Travis Brainerd — Mon, 28 Dec 2009 21:42:28 +0000

I’m having this same problem trying to export an image SEQUENCE. Is there any way to resolve the problem within Flash so I don’t have to fix over 80 images, one by one? Plus, I have some blending modes on so they won’t transfer over to Illustrator.

Eric, what was the problem that was in the symbol you deleted? I’m curious.

By: Jase

Jase — Tue, 28 Jul 2009 00:46:52 +0000

I’m Having a similar problem, though it is sort of backwards to what you are experencing. I was given a job from a client, it’s a pre-built flash video, and all the objects and text are inside a pre-built Photoshop document. I’ve been asked to clean to video since it wasn’t set out too nice.
The problem I am having is when I import new .png files into this flash document from photoshop they look fine, but as soon as I turn them into a Symbol and use an alpha tween they turn to crap. The pre-existing .png objects from the previous dsigner are fine, any ideas what I may be doing wrong?
I’m more of a print designer so any help on this situation would be great!

By: Eric Foster

Eric Foster — Sun, 21 Jun 2009 21:40:27 +0000

I came across this same problem and found the cause to be one of the items that I had drawn and converted to a symbol was causing the issue. I removed that item from the workspace and it exported in 24bit with the alpha with no problems.

By: Ty Halley

Ty Halley — Mon, 01 Jun 2009 00:41:05 +0000

This new bug of Flash’s has been driving me crazy too, I wish Adobe would just fix it, since I’m exporting images a lot and need those edges clean.

Though the process detailed here works, there IS a faster way.

Export you image as a .ai (Adobe Illustrator file) and then in Illustrator you’ll have to re-size it the document to match the dimensions. Then from there do “Export to web” export it as the PNG you wanted in the first place… and lo and behold! It’s exported correctly!

Still though… what a pain. -_-

By: CB

CB — Thu, 21 May 2009 03:20:55 +0000

Yeah Flash used to keep edges really nice and smooth when you exported to png. I can’t get Flash CS4 to create nice png files like older versions of Flash used to, where they maintained the edge alpha. Flash CS4 puts pixel black edges onto all my .png images it creates