Our brown kraft document envelopes include a PDF proof emailed to you prior to printing. These are a sturdy brown envelope, #12 size 4 3/4 X 11 - 28lb weight printed flat ink in black ink on 1 side. If you would like you can email us an existing envelope or letterhead to firstname.lastname@example.org and we will do our best to match the typestyle. We will also gladly use your logo if provided in a suitable graphic format for no charge. We are Extremely capable printers please contact us for any other printing requirements you may have.