Purpose-built tool
Calculate the selected print resolution and export a clean local copy in PNG or JPG.
Change Image DPI
Calculate the selected print resolution and export a clean local copy in PNG or JPG. Everything runs locally on your device.
Private by designRuns locally in browserNo signup needed
Reads PNG/JPEG density metadata. Missing physical resolution is unknown; changing DPI does not add pixels.
No images selected. Files stay on your device.
Processed
Your images never leave your computer.
Image Well Done executes all image algorithms inside your browser memory. We never transmit your image bytes, metadata, or filenames to a remote server.
How to use Change Image DPI
- 1Select one image from your device.
- 2Adjust the labeled controls and check the preview. Target DPI · Output.
- 3Choose target DPI and PNG or JPG. This changes density metadata and calculated print size, not pixel dimensions.
Browser-local processing
Your input is processed on your device, without uploading it to an image-processing server.
No account required
Open the tool and use it without signing up.
Frequently Asked Questions
What input and result does this tool support?
Choose target DPI and PNG or JPG. This changes density metadata and calculated print size, not pixel dimensions.
Is my input uploaded?
No. Processing happens in your browser; your input is not sent to an image-processing server.