Envelope Template to Print, Cut and Fold

Envelopes are named by the cards they hold. The A sizes are for cards and invitations: the A2 for a 4 1/4 × 5 1/2 in note card, the A6 for a 4 × 6 in photo, the A7 for a 5 × 7 in card and the A9 for a half-letter card. The numbered sizes are business envelopes: the #10 takes a letter folded in three and the #9 slips inside it as a return envelope. ISO sizes go with A paper: C6 for A6, C5 for A5 and C4 for a flat A4.

Each A7 envelope template and every other ready size leaves about 1/8 to 1/4 in of room around its card. For a card of your own, type its size and the room you want, and the envelope template draws the envelope from there.

Print the printable envelope template at 100% on text paper, cut along the solid line and score the four dashed folds with a bone folder or an empty ballpoint pen against a ruler. Scored folds stay straight and the paper doesn’t crack along them.

Fold the two side flaps in first, then fold the bottom flap up over them and glue it along the yellow strips. Leave the seal flap open until the card is inside, then close it with a glue stick, a sticker or a wax seal.

An envelope is a front panel with four flaps. Two side flaps fold in first; the bottom flap comes up over them and is glued to them, which makes the pocket; the seal flap closes it. The front is printed on the outside of the sheet, and every flap folds behind it, so one printed side makes both the front and the back.

The flap sizes are worked out from the envelope template’s own size: the seal flap is a share of the shorter side by its shape, the bottom flap reaches the seal flap’s edge and laps under it by about an eighth of the height, and the side flaps are a sixth of the shorter side. Each one can be typed in, and the Math tab shows every formula.

The #10 envelope template is 9 1/2 × 4 1/8 in with a wallet flap: a shallow straight seal flap over a bottom flap that reaches almost to the top, so the back is one clean panel. It takes a Letter or A4 sheet folded in three, and the #9, 8 7/8 × 3 7/8 in, fits inside it to carry a reply.

The #10 window envelope cuts the window envelope makers use, 4 1/2 × 1 1/8 in, 7/8 in from the left and 1/2 in from the bottom, so a letter’s address shows through. Cover the window with clear film glued on all four sides before you mail it.

A liner is a printed or patterned sheet glued inside the seal flap, the part people see when they open the envelope. The envelope liner template is drawn for each envelope: the seal flap’s shape inset 1/4 in on every side, with a band that reaches half the envelope’s height below the fold.

Print the envelope liner template on patterned paper or with your own design, slide it into the finished envelope and glue it under the seal flap. The inset leaves the flap’s edge bare, so the flap still seals.

US mail takes an envelope as a letter from 5 × 3 1/2 in up to 11 1/2 × 6 1/8 in and 1/4 in thick. A letter whose length over height is under 1.3 or over 2.5 is nonmachinable and pays a surcharge, which is why square envelopes cost more to mail. Past a letter, up to 15 × 12 in, it is a large envelope, as the 9 × 12 catalog envelope is.

The Checks tab works this out for every size you type, from the envelope template’s own width and height, and the window check keeps a window at least 1/2 in above the bottom edge and parallel to the length, as US mail asks.

Every envelope template here is drawn for 80 lb text paper, about 118 gsm and 0.147 mm thick: thick enough to hide the card and thin enough to fold flat four times. 24 lb writing paper suits business envelopes, 70 lb text a light invitation and 100 lb text a heavier one.

For a sturdy card envelope, 65 lb cover card stock is in the paper menu too; score every fold well, since card stock folds flat on itself at each crease. The paper’s thickness is shown in points and in millimeters.

The envelope template’s print PDF is for a home printer: Letter, A4, Legal, 11 × 17 in or A3 at actual size, with the folding steps in front. The A1 and A2 envelopes print whole on Letter; the A7, A6, #10 and the squares print whole on 11 × 17 in or A3. On smaller paper the print PDF splits the envelope over pages to tape together.

For a print shop, the production PDF has a 1/8 in (3.175 mm) bleed following every cut line, a safe area, the glue strips free of ink, spot colors set to overprint and a notes page with the sizes. The envelope template also downloads as an SVG for a cutting machine, with named cut and score lines, and as a DXF.

After a download, Design with AI opens AI packaging design in Auto mode: describe the colors, the pattern and the words, and place the result on the front or the flaps in the Design section.

You pay only for the designs you receive. For a name, an address or a logo, the Design section adds them right on this envelope; open the dieline generator for boxes and bags, or start from all box templates.