Image DPI vs mouse DPI
This page is for image files used in print production, so the check is based on pixels and physical output size.
Free prepress tool
Image DPI Checker
Image DPI checker helps you check a print file risk before production. The tool reads pixel dimensions in the browser and shows the practical DPI for the print size you enter.
Local image check
Select a JPG, PNG, or WebP. The browser reads pixel dimensions locally in this front-end version; no file is uploaded.
Target print size
Upload an image to calculate effective PPI at the selected print size.
Use the lower axis
If width and height calculate different PPI values, the lower number is the limiting print quality signal.
Explain risk clearly
A simple PPI result helps staff explain why a customer image may print soft or pixelated.