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Change Image DPI

Change an image's DPI, for example to 300 for printing, right in your browser. Set the DPI, see the print size it gives, then download. The pixels are untouched, so there is no quality loss.

Change the DPI of an image online free, for example to 300 DPI for printing, with no quality loss. Drop in a JPG or PNG, type the DPI you need, see the print size it gives, then download. It works as a DPI changer for getting a photo or document print-ready. The pixels are untouched and nothing is uploaded.

Read the guide: How to Change an Image’s DPI (Set 300 DPI)

Drop images here

PNG or JPG — only these carry a DPI setting — processed privately on your device

How it works

  1. 1

    Add an image

    Drop in a JPG or PNG. It stays on your device.

  2. 2

    Set the DPI

    Type the DPI you need, such as 300 for printing, and see the print size it works out to.

  3. 3

    Download

    Save the image at the new DPI. The picture itself is unchanged and nothing is uploaded.

Instant & 100% private — nothing is uploaded

Your images are processed instantly on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and no copies kept anywhere.

Frequently asked questions

What is DPI and why does it matter?
DPI, dots per inch, tells a printer how many pixels to pack into each inch of paper. A higher DPI prints the same image smaller and sharper. Screens ignore it, so it only matters when you print.
Does changing the DPI reduce quality?
No. Only a small note inside the file changes, telling printers the intended size. Every pixel stays exactly the same, and the file size barely moves, so the image looks identical.
What DPI should I use for printing?
300 DPI is the usual standard for photos and documents. Large prints viewed from a distance can be fine at 150, and fine art printing sometimes uses 600.
Which image formats can I change?
JPG and PNG. These are the formats that carry a DPI setting, and they cover almost every photo and print file.

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