The Overlay function allows you to add an image over the top of your working image. This could be used, for example, to add a logo or sticker or to create a double-exposure effect.
Import your overlay image by clicking the “Add…” button and selecting the desired image file from your computer.
Resize the overlay by scrolling with the mouse wheel or using a two-finger scroll on a track-pad.
Position the overlay by clicking and holding the left mouse button and dragging the mouse pointer.
Click Flip Overlay to flip the overlay image horizontally.