Stylized borders can be the perfect finishing touch. Tap 
to choose a frame style. Many frames have multiple variations of the same style, so tap on the frame thumbnail again to view any available variations. Swipe horizontally on the image to increase or decrease the size of the border that overlays on the image.
Frames apply on top of the image so that they do not alter the final image size or resolution. If a frame covers important image details, re-crop the image to leave room for a frame overlay.