Sometimes a customer sends you a graphic that just isn't great quality. Obviously, the best thing to do is to get a high-res image.  But, if that's not possible and you need to do some cleanup, there is a way to do it without Photoshop. Obviously, you can try to trace it altogether and create a new version, but if there are details you don't want to lose, this is another option.

Also, I didn't mention in the video, but you can also just choose to crop the OUTSIDE edge by choosing "Trace Outer Edge" which can be handy sometimes too. 

Hopefully this helps! If I missed anything, just let me know! Good luck!