UPDATE - I've created a new version of Flex Paint which doesn't require the server roundtrip. Flex allows you to easily create beautiful UIs. But what if you want to take a piece of the UI and save it as an image? Well, using [Tinic's AS3 PNG Encoder][1], Remote Object, and Flash's BitmapData and ByteArray API it's very easy. To show how this is done, I created a simple application called Flex Paint. **Flex Paint** (requires Flash 9) **How it Works** We use the Flash drawing API to draw on a canvas. Then when the "Save Image" button is clicked we do a few simple things. First we create a new BitmapData object: ``` var bd:BitmapData = new BitmapData(canvas.width,canvas.height); ``` Then we copy canvas' pixels onto the BitmapData object: ``` bd.draw(canvas); ``` Now we convert the BitmapData object to a ByteArray encoded as a PNG: ``` var ba:ByteArray = PNGEnc.encode(bd); ``` And then upload the PNG via Remote Object: ``` ro.doUpload(ba); ``` Then Remote Object just saves the file to the file system. If you would like to download the code for Flex Paint, you can find it on [Source Forge][2]. Let me know what you think. Thanks! [1]: http://www.kaourantin.net/2005/10/png-encoder-in-as3.html [2]: http://sourceforge.net/projects/flexapps/