This Adobe Photoshop trick just changed how I create t-shirt mockups completely. Most designers think you need a PNG with a transparent background to place a design onto a t-shirt mockup in Adobe Photoshop. You do not. This Adobe Photoshop tips and tricks technique lets you use any image. Any file. No transparent background needed. Adobe Photoshop removes it for you automatically as part of the process and places your design seamlessly onto the mockup. This is such a game changer for anyone doin