Image DPI converter
This image DPI converter sets the print resolution stored in your file, as many printers and forms ask for 300 DPI.
Drop your files here
Pick your files
Accepted: .jpg, .jpeg, .png. Up to 50 files, 100 MB each, 300 MB in total.
Your files stay on this device. Nothing is uploaded.
How to change image DPI
- Add your JPG or PNG.
- Choose the DPI.
- Press Start and download.
What an image DPI converter really does
DPI tells a printer how many pixels to place per inch. Changing it doesn't change how sharp the image is, only how large it prints. The pixels stay the same.
How big will it print?
Divide the pixels by the DPI. An image 3000 pixels wide prints 10 inches wide at 300 DPI. We show the print size of your image as you choose, and Print width works out the DPI for a size in centimeters or inches. To print large and sharp, you need a higher-resolution original.
Formats and limits
Up to 50 files work in one go. Each can be 100 MB, and the whole batch 300 MB, or 25 files on a phone. It works on JPG and PNG, and the image itself isn't re-compressed.
Questions people ask
Does 300 DPI make my image sharper?
No. It only changes the print size.
Why does a form ask for 300 DPI?
It's the usual print standard. This tool sets that value.
Is quality lost?
No. Only the stored setting changes.