This is an application that can be used to create images by placing other images in a regular grid layout. Useful for creating backgrounds for computer desktops. Just drag some images onto the application icon, set the properties of the final image and save to a new image file.
Updated project to use Swift 4.
Adding a fix for retina screen users: saved images should be all 72 dpi.
With Family Sharing set up, up to six family members can use this app.