You can use this Card Envelop Template to make custom cards, boxes, and envelopes. Simply print out your image, make use this template to cut your fine paper, and fold by the side of dotted lines. Clicking on the image below will guide you to a puffed-up version and coaching that you can print out.
Traditional envelopes are prepared from a sheet of paper slice to one of three shapes: a rhomb, the arm cross, or a kite. These shapes enable for the formation of the envelope design by breakdown the sheet sides around a middle rectangular area. In this way, a rectangle faced field is formed with an array of four flaps on the overturn side.
Following are the download and preview link of Card Envelope Templates.
Click here to download this template

Click here to download this template