How do you cut out pictures successfully?

[Magenta_Davies 0]

Hi i'm kinda new to paint.net and i wanted the background of my image to match with the same background of my signature. Could someone please tell me how to do this because I'm finding it quite hard.

thanks

[Crazy Man Dan 15]

Well, there's the Cutting Out Images the Easy Way tutorial.

There's also my Alpha Masking Cut-out tutorial, but it's a more advanced method.