Paint.NET help

[Travis [bob36455]]

I was trying to take a derp dog then and make the background transparent as a test so I could do it on more of the avatars im going to use. But I coulnt figure out how to keep the background transparent.
Help pl0x

[Ad Bot]

[JTBreslow]

Erase all the white.

[oromis]

Eraser or magic wand the background and press delete.

[Travis [bob36455]]

Thank you :D
5  :cookie:s fo joo
Locking

[oromis]

inb4lock?