72 DPI Converter — Convert an Image to 72 DPI Free
Set an image to 72 DPI — the classic screen/web resolution some upload tools require.
Drop an image here or click to choose
JPG, PNG, TIFF: quality untouched · WebP, HEIC, AVIF, GIF: saved as JPG/PNG · never uploaded
Seventy-two DPI is a number from the first Macintosh, whose screen showed 72 pixels per inch, and it has survived as the conventional label for an image intended for screens rather than paper. Some stock-photo platforms, older content management systems and design handoff tools check that tag and refuse or warn about files marked 300. A web designer may also want assets tagged 72 so that a layout program imports them at the expected size instead of scaling them down. This page sets the DPI tag to exactly 72 and does nothing else.
That last point is worth repeating because the word resolution confuses people. DPI is a note stored inside the file that tells print software how densely to lay the pixels on paper. Changing it from 300 to 72 does not shrink the image, blur it, re-compress it or alter a single pixel, and on a screen the picture looks identical before and after. The file size stays the same too, apart from the few bytes of the tag itself. If you were hoping a lower DPI would make the file lighter, it will not; the Compress Image tool on this site does that job.
The change is made on your device without uploading the file, and it is fully reversible: run the same tool again with 300 if a print shop later asks for it.
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Frequently asked questions
- Does 72 DPI make my image look worse?
- No — on screen, DPI is just a label and doesn't change appearance at all. Only physical print size is affected by the tag.
- Why does a site ask for 72 DPI?
- It's a legacy convention for screen/web images. Setting the tag to 72 satisfies those systems without altering your actual pixels.
- Does setting 72 DPI reduce the file size?
- No. In a JPG, PNG or TIFF only the DPI tag is rewritten; every pixel and the compression are left exactly as they were, so the file is the same size. To make the file lighter, use the Compress Image tool instead.
- Can I change it back to 300 DPI later?
- Yes. Because nothing but the tag changes, you can run the image through the DPI Changer again at 300, 600 or any value with no loss at all.
Guides
- How to take a passport photo at home that gets accepted The rules that get home-made passport photos rejected are about the photo you take, not the software. Lighting, distance, background, expression and the exact sizes for the US, UK, EU, India and Canada, plus how to print several copies for the price of one.
- 300 DPI explained: what print shops actually want from your image DPI is a number stored in the file, not a measure of quality. What "300 DPI" really asks for, the pixel sizes that print sharp at common paper sizes, when changing the tag is enough, and when you genuinely need more pixels.
Related tools
🔒 Your files are processed on your device. This tool runs entirely in your browser — nothing is uploaded.