Otherwise, it will look unsharp and unappealing, which is something people usually want to avoid. If you want to print your photo, it has to be of excellent quality and have a lot of fine details. For example, iPhone13 Pro Max takes photos with an approximate resolution of 2778 x 1284 pixels. These days, not only digital cameras, but also smartphones produce high-resolution images of spectacular quality. Why do you need to resize a photo for Instagram?