envelope 4.75x8.5 inch die line template and 3d envelope editable easily resizeable

envelope document letter mail message isolated paper vector open blank communication realistic business white design address post send set template card object sign corporate email front mock mockup note page postcard receiving sheet stationary element clean icon symbol advertising advice back branding buttons concepts connection cover cut cyberspace 75x8 inch dieline editable easily resizable die line resizeable file 4 75x8 5