Making Backgrounds of Images Transparent Using Paint.Net

I have no clue if some of you know how to do this already, but I will show you how to make the backgrounds of images with solid white backgrounds transparent.

Step 1: Go to File-->Open and open the image in which you want to make the background transparent.

Before:

Step 4: Select the Magic Wand tool and set the Tolerance level to 25% (or anything depending on your image. I would recommend 25% for sprites/pixel images.). Click somewhere on the background.

Step 5: Go to Edit-->Cut. You should see a "checkerboard" pattern where the image is now transparent.

Step 6: File-->Save As...

Select a file type of PNG or GIF before clicking the Save button.

After:

This is a good tut for newbies who want to learn how to do this.