Printing standard-size digital photos (like 4" x 6" and 5" x 7") to fit into frames or photo albums requires some photo resizing. That's because most photo frames are sized for traditional 35mm images, which are rectangular, whereas the size of a digital photo is squarer. We'll show you several simple methods for cropping and printing your digital images. An aspect ratio is simply the ratio between the width and height of the shape of an image.