Catalog Viewer ePatterns is the first downloadable custom-sizable sewing patterns for today's trends, classic, and vintage styles. The ePatterns Viewer provides access to all of your free and purchased patterns. Upon your FIRST purchase, the FREE pattern viewer and the product key to activate it will be added to your account. Download the Viewer setup file and install it on your computer. Activate the Viewer with the product key you received upon check out in our webstore. Browse and buy patterns in our secure online store and download them to the viewer. Viewer Gallery See It Today / Sew It Today.