Why bleed exists
Commercial printers print your design on an oversized sheet and cut it down to the trim size. The cutting has mechanical tolerance — usually up to a millimeter. If your background stops exactly at the trim line, half the cuts land a hair outside it and leave a white sliver along the edge. Bleed is the insurance: backgrounds and edge-to-edge images extend past the trim line, so every cut lands on ink.
The same tolerance works in the other direction, which is what the safe zone is for: anything closer to the trim line than the safe margin risks being clipped. Keep text, logos, and anything that can’t be cut inside it.
Standard bleed values
| Region / spec | Bleed per edge | Typical safe margin |
|---|---|---|
| ISO / EU print specs | 3 mm | 3–5 mm |
| US print specs | 0.125 in (1/8") | 0.125–0.25 in |
| Large format (posters, banners) | 0.25 in / 5–10 mm | 0.5 in / 10 mm+ |
| Books (KDP and offset covers) | 0.125 in / 3 mm | 0.25 in / 6 mm |
These are the common defaults; your printer’s spec sheet always wins. Print-on-demand APIs (Printful, Printify, Gelato, Peecho) publish exact per-product templates with bleed built in.
Common sizes with bleed — quick reference
| Product (trim) | With bleed | Pixels @ 300 DPI |
|---|---|---|
| Business card US — 3.5 × 2 in | 3.75 × 2.25 in | 1125 × 675 |
| Business card EU — 85 × 55 mm | 91 × 61 mm | 1075 × 720 |
| Postcard — 4 × 6 in | 4.25 × 6.25 in | 1275 × 1875 |
| Flyer A5 — 148 × 210 mm | 154 × 216 mm | 1819 × 2551 |
| A4 — 210 × 297 mm | 216 × 303 mm | 2551 × 3579 |
| US Letter — 8.5 × 11 in | 8.75 × 11.25 in | 2625 × 3375 |
| Poster — 18 × 24 in | 18.25 × 24.25 in | 5475 × 7275 |
Setting up the canvas
Two workflows exist. Either create the canvas at the final size with bleed and keep your own mental trim line, or — cleaner — use an editor with native bleed support: design at trim size, let the tool render the bleed area and safe-zone guides, and export a PDF with bleed and crop marks. Polotno Studio (the free editor this tool hands off to) and the Polotno SDK both take the second path, so the exported PDF carries the bleed your printer expects without manual math.
