Yes, while inside the Design Center, click on the Image Tools tab. Then click on one of the two Crop options. Use the crop box to crop your photo. You can move it around and size it as needed. Click done when finished.
Keep in mind that when photos are cropped pixels are removed. Cropping a photo spreads a smaller number of pixels (since some were removed) over the same surface area. This is why you’ll sometimes see squares in your photo, or lines that aren’t smooth after cropping a photo.
Starting with more pixels, at a higher resolution, means there are more pixels to spread when you crop your photo. Please be sure your image is of high enough resolution to support the amount of cropping that you want to do. If it looks at all blurry or pixelated on the screen, it will look even more so in print. If that is the case, it would be best to not crop the photo or choose a different photo with higher resolution.