Custom printed envelopes can seem expensive because they are converted; meaning they are printed flat, die cut, then folded and glued together. This extra processing drives up the cost.Aug 27, 2019
What company makes envelopes?
Cenveo's Envelope Group is one of the world's largest envelope manufacturers, producing one out of every three envelopes in the United States, with a wide variety of types and seals.
What is a letter envelope?
An envelope is a form of packing. Envelopes are used for sending letters or documents using regular postal mail. Envelopes are usually made of paper or hardened paper. An envelope may be small enough to make you need to fold the paper going into it, or it can be as large as the paper so that you do not need to fold it.