Change an image's DPI (resolution).
Adjust settings to match exactly what you need
Files are never uploaded to a server — processed in your browser
No limits, no payment, ever
JPG or PNG. The current DPI and print size are shown.
Choose 72, 96, 150, 200, 300 or 600 — or tap Custom and type any value your form asks for.
'Only DPI' changes the print-size label without touching pixels. 'Set print size' resizes the image so it prints at exactly the cm/mm/inch you enter (e.g. passport 3.5×4.5 cm).
Check the result's pixels, DPI and print size, then download as JPG or PNG.
Convert DPI sets the resolution stored inside a JPG or PNG — some portals and printers check it — and can resize a photo to an exact physical print size.
Dots per inch — how many pixels are printed per inch. A 600 px wide image at 300 DPI prints 2 inches (5.08 cm) wide.
No. 'Only DPI' changes the label only. To get more pixels for a larger print, use 'Set print size' — but upscaling can't add real detail.
Choose 200 DPI, tap Set print size, then Passport 3.5×4.5 cm. The photo becomes 276×354 px at 200 DPI.
No. The tool runs entirely in your browser, so your file never leaves your device and nothing is stored on our side.