Set Image DPI
Choose any print resolution — 72, 150, 300, 600 DPI or a custom value — and stamp it into your image, free and in your browser.
Drop an image to print
Drag & drop, paste, or pick a file
PNG · JPG · WebP · GIF · BMP — prepared on your device
Choosing the right DPI
Different jobs need different DPI. 72 or 96 DPI is the old screen standard and makes an image print large; 150 DPI suits drafts and big posters viewed from a distance; 300 DPI is the norm for quality photo and document printing; 600 DPI is for fine line art and small, detailed prints. DPI sets the physical size — it doesn't change the pixels.
Pick a preset or type a custom value, and the tool writes it into the image's metadata so printers and design software use it. PNG and JPG keep every pixel; WebP, GIF, and BMP are saved as PNG so they can carry a DPI tag. The resulting print size is shown in inches and centimetres.
How to set the DPI
- Open your image. Drag it onto the tool, choose a file, or paste it.
- Choose a DPI. On the Set DPI tab, tap a preset (72 / 96 / 150 / 300 / 600) or enter a custom value. The print size updates live.
- Pick an output format. Keep the original, or choose PNG or JPG. PNG/JPG preserve every pixel.
- Download the image. Click Download image to save the file with your chosen DPI.
Higher DPI = smaller print
For a fixed image, raising the DPI makes the print smaller (each pixel is squeezed into less space), and lowering it makes the print bigger. So 600 DPI prints crisp but small; 72 DPI prints large but soft. Match the DPI to the physical size you actually want.
image DPI (print resolution) print specs at a glance
Setting the DPI tag tells printers and design apps the intended physical size of your image, so it no longer opens at the wrong scale.
- Physical size
- Set by you — physical size (in) = pixel dimensions ÷ the DPI you choose
- Pixels @ 300 DPI
- 300 DPI for photo / document print quality
- Pixels @ 150 DPI
- 150 DPI for drafts or large prints viewed from a distance
- Aspect ratio
- Unchanged — setting DPI re-tags the file without resampling pixels
image DPI (print resolution) sizing tips
- DPI (dots per inch) and PPI describe the same thing here: pixels packed per inch of paper. The pixels are fixed — DPI just decides how big they print.
- To hit a target print size, divide pixels by inches: a 3000 × 2400 px photo at 300 DPI prints 10 × 8 in; set 150 DPI and the same file prints 20 × 16 in.
- Common choices: 300 DPI for photos and documents, 150 DPI for large-format or draft prints, and 72/96 DPI only for on-screen use.
- The tool rewrites the file's density metadata (PNG pHYs / JPEG JFIF) and leaves the pixels untouched, so nothing is upscaled or blurred.
More ways to print
Frequently asked questions
Which DPI should I choose?
300 DPI for photos and documents, 150 for large posters seen from a distance, 600 for fine detail, and 72/96 only for screen use or deliberately large, soft prints.
Can I enter a custom DPI?
Yes. Type any value (1–2400) in the Custom DPI box and the print size updates instantly.
Does changing DPI affect quality?
No — for PNG and JPG only the metadata tag changes; the pixels are untouched. DPI controls print size, not image detail.
Where is my image processed?
The file is created in your browser, so it is made on your own device. How any data associated with the tool is handled is described in our privacy policy.
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