Abstract: A computer program product creates a production file of an image for application to a custom-imprinted article. The product comprises instructions for displaying at least one web page, down-loading an image, which may be a proxy for a full resolution image, displaying the image in a rendering area of said web page, displaying rendering instruction controls, locally processing the displayed image in accordance with the rendering instructions, and up-loading of the rendering instructions on completion of rendering. The image display instructions provide for displaying a mask in a mask layer and for displaying at least one editable or renderable image in an image layer that underlies the mask layer and appears only through the mask. The images for use with the product including thumbnail images, preview images, proxy images and full resolution images are advantageously provided with a unique identifier within a naming convention established at an image-publishing site.