Change the DPI of an image
Set the DPI of a JPG or PNG (72, 150, 300…) without touching the pixels: same detail, different print density.
Your files never leave your device
How to change DPI
- 1
Upload the JPG or PNG
The current file DPI is shown.
- 2
Pick the DPI
72, 96, 150, 200, 300 or custom.
- 3
Download
Same file, new density, zero loss.
Why use this tool
No re-encoding
Only the header changes: zero quality loss.
For print
The 300 DPI printers and magazines ask for.
Honest
We explain DPI adds no detail: it only sets physical print size.
Private
The image is processed in your browser: nothing is uploaded to any server.
Frequently asked questions
Does changing DPI improve quality?
No. DPI only tells printers how many pixels per inch to use: it changes the physical print size, not the detail. More detail needs more pixels.
Why does my printer ask for 300 DPI?
It is the standard density for sharp printing. This tool declares 300 DPI without re-encoding the image.
Does it work with WEBP or AVIF?
No: binary DPI can only be written into JPG and PNG. Convert your image first.
Is my image uploaded to a server?
No. All processing happens on your device using the browser itself; the image never leaves it.