Step 3: Make a new layer
Almost everything in photo editing is easier with layers, so weâ€™ll turn this picture into one. In the Layer menu, roll down to New and select Layer from Background. This promotes the background into a layer that can be moved around and edited.
Step 4: Duplicate the layer
The effect weâ€™re going to produce needs two identical layers to start with, so go back to the Layer menu and click on Duplicate Layer. You can re-name it if you want to, but thereâ€™s really no need.
Step 5: Change the opacity of the top layer
Now for the clever part. On the right of the screen youâ€™ll see the layers palette, with your two layers shown as â€˜Layer 0â€™ and â€˜Layer 0 copyâ€™, with the latter above the former and highlighted in blue as the active layer. If it isnâ€™t highlighted, click on it to activate that layer. At the top of the palette youâ€™ll see a box for opacity, with a drop-down slider. Click on this and move the slider down to about 65 percent opacity. This means that the bottom layer is visible through the top layer, although since theyâ€™re both identical at the moment itâ€™s impossible to tell.