Quick question.

How do you make a render stick out of the actual canvas? I tried using the 'canvas size' tool but it always leaves a Black or White background behind it and I want there to be nothing behind it.

 

You cant make it stick out of the canvas, if your trying to make a signature with a pop-out render you need to adjust the canvas size so there some transparency around it then put in your render.

 

And if you're wondering how to get a transparent background, start off with one when you open a new canvas, or simply make a new layer and delete the background layer.