A square tin can PSD mockup is a digital representation of a square-shaped tin can saved in Photoshop (PSD) format. This mockup can be used to showcase the design of a tin can before it is printed and manufactured. The PSD file typically includes layers and smart objects that can be edited to change the design elements such as text, images, colors, and more. This mockup can also be used to showcase the design to clients or stakeholders for approval. It allows designers to see how the design will look on the actual product and make any necessary adjustments. With the use of PSD file, designers can easily edit and manipulate the design of the tin can according to the requirement.