Does this make my image higher resolution?

No — DPI is only a print-density label. It tells the printer how large to print the existing pixels; it doesn't add detail.

My print shop rejected my file for low DPI — will this fix it?

Yes, it sets the tag to 300 DPI. For large prints, also make sure the image has enough pixels for the physical size you want.

Convert Image to 300 DPI

Set an image to 300 DPI for printing — pixels untouched, only the print tag changes.

Target DPI

DPI

Drop an image here or click to choose

JPEG & PNG · quality untouched (no re-encoding) · never uploaded

300 DPI is the standard print shops and publishers ask for, because it gives sharp output on paper. This tool writes the 300 DPI tag into your file without touching a single pixel — so their software accepts it without complaint.

Everything runs in your browser; your image isn't uploaded.

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Frequently asked questions

Does this make my image higher resolution?: No — DPI is only a print-density label. It tells the printer how large to print the existing pixels; it doesn't add detail.
My print shop rejected my file for low DPI — will this fix it?: Yes, it sets the tag to 300 DPI. For large prints, also make sure the image has enough pixels for the physical size you want.

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🔒 Your files never leave your device. This tool runs entirely in your browser — nothing is uploaded.