Image DPI Changer
Set the DPI written into a PNG or JPG — for example 300 DPI for print — without changing the pixel size. Upload the image, type the DPI, and download the updated file.
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How to use
- Upload a PNG or JPG image.
- Enter the target DPI, usually 300 for printing.
- Download the same image with the new DPI written into its file metadata.
Tips
- DPI is a print hint — it does not change image quality.
- 300 DPI is the standard for printing.
- Changing DPI never changes the pixel size.
- Some printers ignore DPI and use pixel dimensions instead.
DPI here is file metadata that tells printers how large to print the pixels. It does not add detail or change the pixel dimensions.