How to create an outline on an image/clipart

Hi there! I'm very new to all of this an have been struggling a little with one thing in particular. How the heck to I create an outline around an image, without having to hand draw it? Or is that even an option? Essentially what I am wanting to do is take this image and invert the colors (I do know how to do that) and outline it. So I'm wanting the drop to be white, the reflection to be black, and to have an outline around the entire thing. Does anyone know how to help me? Thanks so much in advance!

  • If that is a vector object, do Boundary under the Shaping tools.  If it is not, you might could run an autotrace on it. There could be some other methods if its raster.

    But, if it was a vector object, you would just change the colors.  It could be that the crescent moon shape is a "hole" in the drop.  In that case try the smart fill.