Change an image's DPI metadata to any value you need — losslessly, on your device.
Drop an image here or choose a file
JPG, PNG, or WebP · Up to 30MB · Processed locally, never uploaded
DPI conversion is useful when the file already contains enough pixels and only the print-density metadata is wrong. It is not the same as enlarging, sharpening, or improving a low-resolution source image.
| Situation | Best action | Important note |
|---|---|---|
| Print shop requests 300 DPI | Set metadata to 300 DPI | If pixel dimensions are already large enough |
| Image opens too large in design software | Change DPI metadata | The same pixels will be interpreted at a different physical size |
| Small image needs a large poster | Resize or use a higher-resolution source | DPI metadata alone cannot add detail |
| Marketplace form rejects 72 DPI | Convert metadata to required DPI | Then recheck the downloaded file |
| Need exact inches and pixels | Use print-size or resize tools | DPI converter only changes the density label |
Some apps ignore DPI metadata, some read JFIF density, and others prefer EXIF resolution tags. After converting, reopen the downloaded image in the receiving app or run it through YesDPI's checker to confirm that the expected value is visible.
Changing DPI updates print metadata. It does not create new pixels.
For JPEG files, YesDPI rewrites the JFIF APP0 density field and/or EXIF resolution tags in place. For PNG files, it rewrites the pHYs chunk. Both are lossless, in-place metadata edits — the compressed pixel data is never touched, so the file opens exactly as before, just labeled with a different print density.
If you need to check whether the file has enough pixels before changing metadata, start with the DPI Checker or calculate the required print dimensions with the Print Size Calculator.
It rewrites the image's density metadata — the value a printer or design app reads to decide how large to print your pixels. It does not resample, sharpen, or add any pixels.
No. YesDPI edits the metadata bytes directly and never re-encodes JPEG or PNG pixel data, so there is no quality loss. WebP files are re-encoded to PNG because WebP has no standard editable density field; pixels are copied unchanged.
300 DPI is the standard for most professional and photo printing. 150 DPI can be acceptable for large-format prints viewed from a distance, like posters. 72–96 DPI is a screen convention, not a print target.
Yes — choose Custom in the DPI selector and enter any value from 1 to 65535.
Change DPI when the pixel dimensions are already correct and a print shop, design app, or upload form needs a specific metadata value. Resize when the image does not have enough pixels for the intended print size.
DPI metadata affects print size interpretation, not on-screen appearance. The image looks the same because the actual pixels have not changed.
