Photo size and image resolution have some similarities but are different concepts. Photo size usually means the actual size of an image, e.g., 4 x 6 inches, while image resolution usually indicates how many pixels the image has or its pixel density in printed form. Both concepts play an important role in making high-quality photos. For instance, a picture with low resolution can become blurry once it has been printed in a larger format. Pixifyo relates to the needs of business customers who want to create something new in design and print through Pixifyo.