Certificate size and paper guide
A standard certificate is US Letter (8.5 × 11 in) in North America and A4 (210 × 297 mm) almost everywhere else, printed landscape on 65–110 lb cardstock at 300 DPI. Here are the details, and a demo of why the resolution matters.
Standard certificate sizes
| Size | Inches | Millimetres | Pixels at 300 DPI | Typical use |
|---|---|---|---|---|
| US Letter | 8.5 × 11 | 216 × 279 | 2550 × 3300 | Most US/Canadian certificates and awards |
| A4 | 8.27 × 11.69 | 210 × 297 | 2480 × 3508 | Standard in the UK, EU, India, Australia and most of the world |
| 11 × 14 in | 11 × 14 | 279 × 356 | 3300 × 4200 | Large US diplomas and framed awards |
| A5 / half letter | 5.8 × 8.3 / 5.5 × 8.5 | 148 × 210 / 140 × 216 | 1748 × 2480 / 1650 × 2550 | Gift certificates and vouchers |
| US Legal | 8.5 × 14 | 216 × 356 | 2550 × 4200 | Rare; some licences and stock-style certificates |
CertifyFast exports US Letter and A4, the two sizes every home and office printer handles. For half-size vouchers, print two PNGs per sheet and trim.
What "300 DPI" actually means
DPI (dots per inch) is how many pixels are packed into each printed inch. A screen looks sharp at around 100–200 pixels per inch because you view it from further away, but paper at reading distance shows every jagged edge, especially in script lettering and fine border lines. The printing industry settled on 300 DPI because at a normal reading distance of about 30 cm, human visual acuity can barely separate dots finer than that. Drag the slider to see it:
- Pixels needed
- 3,300 × 2,550
- Megapixels
- 8.4
Print standard: sharp at reading distance on office and photo printers.
Choosing certificate paper
| Weight | gsm (approx.) | Feel | Printer |
|---|---|---|---|
| 24–32 lb bond | 90–120 | Heavy copy paper; fine for drafts | Any |
| 65 lb cover | 176 | Light cardstock, flexible | Almost any home printer |
| 80 lb cover | 216 | The sweet spot for certificates | Most inkjet and laser printers |
| 100–110 lb cover | 270–300 | Stiff, premium | Check max weight; use the rear/manual feed |
- Finish: matte or linen for inkjet (no smudging); parchment for a traditional look; avoid glossy photo paper, which fingerprints and glares.
- Printer settings: choose "Actual size", the matching paper size, "Cardstock" or "Heavy paper" media type, and "High" quality.
- Foil-bordered paper: use the Minimal layout so the printed frame doesn't clash with the foil.
Questions people ask
What size is a standard certificate?
In the US and Canada, most certificates are US Letter, 8.5 × 11 in (216 × 279 mm), printed landscape. Elsewhere the standard is A4, 210 × 297 mm (8.27 × 11.69 in). Diplomas are also commonly 11 × 14 in in the US.
What is the best paper for printing certificates?
Cardstock of 65–110 lb cover (about 176–300 gsm). 65–80 lb feeds through almost any home inkjet or laser printer; 100–110 lb feels premium but check your printer's maximum weight. Parchment, linen and cotton finishes add texture.
What resolution should a certificate be for printing?
300 DPI at the final size: 3300 × 2550 px for US Letter landscape, 3508 × 2480 px for A4. CertifyFast exports at exactly this resolution.
Why does my certificate print with white margins or cut-off edges?
Most desktop printers cannot print to the very edge. Choose "Actual size" (not "Fit to page"), and if the border is clipped, enable borderless printing or accept a thin white margin. All CertifyFast designs keep text well inside the safe area.
What size frame fits a certificate?
Buy an 8.5 × 11 in frame for Letter prints and an A4 frame for A4. A frame one size up (11 × 14 in) with a mat opening of 8.5 × 11 in looks more finished.