Start with the strongest source
Upload the best logo file you have
A clean original gives Stamp Ninja more useful information than an enlarged copy. Do not worry if you are unsure which format is best—the aim is simply to avoid throwing detail away before the artwork is checked.
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Vector artwork is the preferred starting point
Vector shapes can be resized without becoming pixelated, so curves, lettering and linework normally remain cleaner at the finished stamp size.
- Send the original exported file where possible
- Keep text converted to outlines if the design depends on a specialist font
- If the product uploader rejects the format, use a high-resolution PNG and retain the vector original
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A large, sharp image can still work well
If you do not have vector artwork, upload the biggest and clearest version available. A transparent-background PNG is helpful, but image clarity matters more than simply changing the file extension.
- Use the original export rather than a screenshot
- Avoid logos saved from social media or messaging previews
- Do not artificially enlarge a tiny image—it adds pixels, not real detail
The key artwork rule
A rubber stamp works as ink or no ink
A colour printer can reproduce gradients, shadows, transparency and photographs. A conventional rubber stamp normally converts the design into solid printing and non-printing areas. Different logo colours do not become separate shades in a single-colour impression.
Upload your normal colour logo if that is the best file you have. Stamp Ninja can assess how it will translate, but some effects may need to be removed or simplified.
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LOGOGRADIENT + SHADOW
Original colour artwork
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LOGOSOLID STAMP ARTWORK
Possible stamp interpretation