To customize your product, please follow these simple steps:Make sure you have Adobe Photoshop installed and open your PSD file.Once you open an image, activate the Crop tool on the left panel. A resizable crop box appears, and you can drag any corner to resize it manually. Also, you may set up the particular size of the picture. Click a checkmark on the top to save the changes.Use the right panel to adjust the settings in Color/Swatches, Libraries/Adjustments/Styles, and Layers/Channels/Paths panels.