When the Smoothing check box is selected in the Text workpane, the jagged edge that would otherwise border a text character is eliminated. For this reason, you should usually leave the Smoothing check box selected.
However, small text that is smoothed may look blurry when you view it on a computer screen. If your final picture file contains text smaller than 10 points, and if you intend to display the picture on a Web page, you may want to clear the Smoothing check box to make the text more legible.