Transparent background for my skin

[Manakar]

I've made my own skin, but when i upload it, there's still a white background... I tried Paint.net, but i don't understand how to put a transparent background ^^'
Could someone help me pls ?

 

[SViper]

I've made my own skin, but when i upload it, there's still a white background... I tried Paint.net, but i don't understand how to put a transparent background ^^'
Could someone help me pls ?

Press on white background with Magic Wand and press delete then.

 

[Manakar]

Thank you very much !