How to prepare vector files for laser glass etching
Production and design guides
A clean, sharp mark on cylindrical glass starts with properly prepared 2D vector art. Unlike printing on paper, rotary laser systems treat vector geometry as a direct set of firing commands. Get the file wrong, and the machine will faithfully etch that mistake into the glass. Here’s the production checklist.
In short: prep artwork as 100% black (#000000 / 0% C, 0% M, 0% Y, 100% K) in a true vector format (.AI, .EPS, .SVG or .PDF). Keep strokes at least 0.5 pt (0.007 in), convert all fonts to outlines, remove drop shadows and gradients, and merge overlapping paths with Pathfinder > Unite before you submit.
This checklist assumes you already know why etching holds up better than printed barware. If not, start with our complete guide to custom laser etched glassware. What follows is the file-prep side: the specs our production team checks before a design goes near the machine.
Vector art specification checklist
- File formats: vector .AI (Illustrator), .EPS, .PDF or clean .SVG. High-resolution (300+ DPI) black-and-white raster files can work in a pinch, but true vectors give the sharpest edges.
- Color mode: 100% solid black (K: 100%). The laser reads black as “etch” and white as “ignore”; there’s no in-between for a standard single-pass engrave.
- No gradients or shading: a laser can’t shade glass the way an inkjet printer shades paper. Simulate shading with solid contrast or high-contrast stippling or hatching.
- Minimum line weight: 0.5 pt (0.175 mm / 0.007 in). Anything thinner risks etching in broken segments instead of one clean stroke.
- Minimum font size: 8 pt for clean sans-serif type; 10 pt for ornate or script fonts, which need more weight to hold fine detail.
3 file traps to avoid
1. Hidden overlapping vector paths
If your artwork has overlapping shapes that aren’t merged, the laser may fire twice along the overlapping lines, adding heat stress and rough edges.
Fix: select all artwork in Adobe Illustrator and apply Pathfinder > Unite to merge shapes into a single outline.
2. Live fonts instead of outlines
If the production computer doesn’t have your typeface installed, the file can quietly switch to a system font, changing spacing and alignment.
Fix: select all text and run Type > Create Outlines (Ctrl+Shift+O on Windows, Cmd+Shift+O on Mac) before export.
3. Thin script hairlines
Ornate calligraphy fonts often taper their entry and exit strokes below 0.25 pt. On glass, lines that thin may not etch visibly at all.
Fix: add a small 0.25–0.5 pt stroke to fragile script tails so the line etches continuously.
Not a designer? No problem.
Our team reviews artwork for custom etched glassware orders before production and will flag stroke-width or font issues, even if you only have a PNG.
Frequently asked questions
Can I submit a PNG or JPG instead of a vector file?
Yes. For simple logos or monograms, a high-resolution (300+ DPI) black-and-white image can work. Raster edges soften slightly when scaled, though, so a true vector file always gives the crispest result.
Why does my design need to be pure black?
A standard single-pass glass etch is binary: the laser either fires or it doesn’t. Solid black (100% K) tells the machine exactly which areas to etch. Grays, colors or gradients get read inconsistently and can produce a patchy frosted result.
What happens if my stroke is too thin?
Lines thinner than about 0.5 pt often etch as broken segments instead of one clean stroke. It’s one of the most common reasons a proof gets sent back for revision.
Do I need to outline a common font?
Yes. Even widely available fonts can render with slightly different spacing across systems and software versions. Converting to outlines locks in exactly what you designed.
Ready for production?
Check your artwork against this list, then send it with your order. Every piece is etched and quality-checked in Florida.
Shop custom etched glasswareFor pricing and bulk ordering details, see the full laser etched glassware guide.
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