Change Image DPI
Change the DPI/PPI metadata of an image without changing its pixel dimensions.
Check Image DPI
Check the embedded DPI/PPI, pixel dimensions and print size of JPG, PNG and WebP images directly in your browser.
Your files stay on your device.
Drop an image to check its print resolution Release to open it
JPG, PNG, WebP, AVIF, GIF and BMP images up to 50 MB; HEIC and TIFF where this browser can decode them.
Images are processed on your device. Nothing is uploaded, and your original is never changed.
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What the number means
The DPI (more exactly PPI) value only says how many pixels fill one inch on paper: print size is pixels divided by DPI, so 3000 pixels at 300 DPI print 10 inches wide. It adds no detail. An image without a value is shown as having none, with its print size at 150 and 300 PPI as a calculation.
Frequently asked questions
Is 300 DPI good for printing?
300 DPI is a common guideline for prints viewed up close, such as photos and brochures. It is not a guarantee: the printing method and the viewing distance decide, and posters seen from a distance often need less.
Can the same image be 72 DPI and 300 DPI?
Yes: the pixels can be identical and only the stored value differs. Some files even store two different values; the tool shows both then.