I have a clipart image that I want to use for something, but the black edges on it aren't perfectly smooth and thick. Is there any way (with Photoshohp) to place like a black outline around an object to make it look more smooth? Thanks.
use could use the pen tool, or if you have alot of patience you could use the brush tool set on the pixel dimensions you want
try this: select the image (wand or rect.), gobto Select>modify>border (if i understand what you want that is)
Click with the Magic Wand Tool on the stroke you have now (use Tolerance:10 or something). Delete it with backspace. Go to 'Add a layer style>Stroke... and give it a stroke.