Screen capture image quality help

[nfsynn]

i have an application which takes a screenshot of the stage, which then gets uploaded to facebook. but the image quality is not great..is it something im doing wrong? ive also tried the PNGEncoder but the quality result is the same.

var bd:BitmapData = new BitmapData(stage.stageWidth,stage.stageHeight);
    bd.draw(stage);

var screenshot:Bitmap = new Bitmap(bd);

//i then uploaded screenshot to facebook 

this with the PNGEncoder:

var bd:BitmapData = new BitmapData(stage.stageWidth,stage.stageHeight);
    bd.draw(stage);
        
var myPNG:ByteArray = PNGEncoder.encode(bd);

//myPNG gets uploaded to facebook 

id appreciate the help, thanks.

[abeall]

How are you uploading to facebook, and how are you viewing the resulting image? PNG should be lossless. I'm guessing facebook is doing some compression on their end.