Short answer
A vector file (AI, EPS, SVG or a vector PDF) gives the sharpest print and is required for clean engraving. A high-resolution PNG or JPG at 300 dpi at badge size also prints well on full-color badges.
| File | Full color print | Engraving |
|---|---|---|
| AI, EPS, SVG, vector PDF | Best | Required |
| PNG or JPG, 300 dpi | Good | Usually needs redraw |
| Logo from a website or email signature | Often blurry | No |