Set Image DPI

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

1. Open your image. Drag it onto the tool, choose a file, or paste it.
2. 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.
3. Pick an output format. Keep the original, or choose PNG or JPG. PNG/JPG preserve every pixel.
4. 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.