How to set up files for acrylic signs: cut, print and white ink layers

Acrylic logo signs are everywhere, from salon walls to office lobbies, and a good acrylic sign file makes them easy to produce. The trick is separating everything the machines need into clean, registered layers.

The layers an acrylic sign needs

A typical UV-printed, laser-cut acrylic sign file has:

1. Cut path: the outline the laser or router follows, as a closed vector path with a hairline stroke and no fill

2. Print layer: the full-color artwork

3. White ink layer: a spot-color layer that tells the UV printer where to put white

4. Holes: standoff or mounting holes, on their own layer

5. Engrave (optional): areas to engrave instead of print

Keep each on its own named layer, all aligned to the same origin, so print and cut register perfectly.

First-surface vs second-surface printing

• First surface: printed on the front of the acrylic. Simple, but the print is exposed to scratches.

• Second surface: printed on the back of clear acrylic and viewed through it. The acrylic protects the print and adds depth and gloss. For this, the artwork must be mirrored, and the print order flips: color first, then white behind it.

Tell your file designer which you're using, because the file is different.

Getting the white ink right

On clear acrylic, colors without white behind them look washed out and see-through. The white layer fixes that:

• Flood white: solid white behind all the artwork, which makes colors opaque and vivid

• Choked white: white shrunk slightly (about 0.1–0.2 mm) inside the color edges, so it doesn't peek out

• Selective white: white only under certain areas, leaving others translucent for effect

The white layer is usually a spot color named exactly as your printer's RIP expects (often "White" or "Spot_White"). Check with your printer.

Cut paths that actually cut

• Use one closed path per piece, with no gaps, overlaps or duplicates

• Remove fills from cut lines, and use a hairline stroke in your laser's cut color

• Mind the kerf: a CO2 laser removes roughly 0.1–0.2 mm. For press-fit parts, offset the path

• Keep inside corners from getting too sharp on routers; the bit has a radius

For routers and CNC, export a DXF with joined polylines. For lasers, an SVG or AI keeps colors for cut, score and engrave.

Mounting hardware

Standoffs need holes that match the hardware, commonly around 3/8 in to 1/2 in (10–13 mm) for wall standoffs, set back evenly from each corner. Put them on their own layer so the shop can drill or cut them separately.

Material notes

• Cast acrylic engraves to a crisp frosted white, ideal for engraved details

• Extruded acrylic is cheaper and laser cuts with clean, flame-polished edges

• Common thicknesses are 1/8 in (3 mm) for layered pieces and 1/4 in (6 mm) for main sign panels

Edge-lit and backlit signs

Edge-lit signs work differently: the design is engraved into clear cast acrylic, and LEDs in the base light up the engraved areas. The file is engrave-only, with no print or white layers, and the artwork is often mirrored so it can be engraved on the back face. Backlit signs use translucent white acrylic or diffuser film, so print density matters more than on a standard wall sign.

Checklist before you send the file

1. Artwork at actual size, with the sign's outer dimensions noted

2. Cut path closed, hairline, on its own layer

3. Print, white and engrave layers named the way your printer expects

4. Artwork mirrored if it's printed second-surface

5. Text converted to outlines

6. Hole positions and sizes marked

7. A PDF proof with dimensions for your customer to approve

Let us build the file

Send your logo and sign size, and we'll prepare a true-to-size file with cut, print, white and hole layers for your printer and laser. Acrylic sign files start at $25. Making channel letters or routed signs? See sign and channel letter files and CNC router files.