Transparent Background

**Gadav1** · 10 January 2009, 06:32 PM

How do you export a transparent background? I tried to export a text png file into after effects and there is a white bounding box accompanying the text.

**PixelDust** · 10 January 2009, 06:51 PM

There's a drop-down box for color depth on the "Palette Options" tab of the export dialog box. The first choice is "True Color + Alpha". Did you export with that setting?

Also, I think in most compositing software, you have to do something called "Premultiply Alpha" (Not entirely sure about what it's called). I've never used After Effects, but I think compositing software handles alpha channels differently than programs like Photoshop. You may have to set the premultiply option in After Effects.

I wish I could help more, but I don't do much compositing.

**Gadav1** · 10 January 2009, 09:54 PM

PixelDust: Your suggestion was right on. Can't thank you enough. 1st time around I exported with true colors not + alpha.

**PixelDust** · 11 January 2009, 03:01 PM

Great! I'm glad it worked.

**mokusbajusz** · 12 January 2009, 10:06 AM

I also have some problem with exporting PNG images.

I'd like to export a logo with a transparent background which is greater than the graphics itself. The reason is the positioning in the header of a website template.

I drawn a rectangle on a Guide layer. Then I selected the rectangle and tried to export.
When I select True color+Alpha the image disappears!

Exporting only the graphics (logo text) works, but that is not suitable for me.

Any thoughts how to solve it?

**handrawn** · 12 January 2009, 10:13 AM

problem is probably that the rectangle is on the guide layer - this is a 'special' layer [see help section]

it will work fine if the rectangle is on the same layer as the logo, or another ordinary layer, as long as it is behind the logo and both are selected.....