Welcome too another small Guide too Paint.net Features on Paint.net its kind of like Adobe photoshop but its free to use,here is a small Guide too help any of you people who want too learn how too use the features of Paint.net. I am not the best writer, but I hope this will help you.
Click Layers box icon which is called a Duplicate Layer mark in Red I am showing for example.Add as many copys of your pictures as you want but I recommend just 2 or 3.
Then click at the top layer of your picture you will see this pop up called Layer properties lower the 0pacity seting too 110 untill you see lines of your picture it will look like this for example