This post will explain how to do fading (fade out a layer) in Gimp. Assuming you have an image open... Add a new layer Draw the part you want faded Right click on the layer in the Layers panel/window and select 'Add Layer Mask', then click on Add on the Add Layer Mask dialog (making sure the default value of 'White (full opacity)' is selected). Select the Blend/Gradient tool and set the Gradient to 'FG to GB(RGB)' . On the layer click and drag a line where you want the gradient (fade) to start and...