What is the Image DPI Changer?
Some government and print submission forms specifically check the DPI (dots per inch) value embedded in a JPEG's metadata, even though it doesn't affect what you see on screen. This tool patches the exact JFIF metadata bytes of your JPEG to set 72, 150, 300 or a custom DPI, without touching the actual pixels or image quality.
How to Use This Tool
- Upload your photo.
- Pick a DPI preset (72, 150, 300) or type a custom value.
- Click Set DPI, then Download Photo.
Frequently Asked Questions
Does changing DPI change my image quality or pixel dimensions?
No. DPI is a metadata tag that tells printers how densely to print the existing pixels — it does not resample or resize the image. To change actual print size in inches at a given DPI, resize the pixel dimensions using our Resize tool.
What DPI should I use?
150 DPI works for typical print servicing forms; 300 DPI is the standard for high-quality printing and most Indian government photo requirements that mention DPI.
Why doesn't my browser show the new DPI?
Most browsers and even some image viewers ignore the DPI tag on-screen (screens don't have a fixed physical DPI). The tag is read correctly by print software and photo printing services.
Is my photo uploaded to a server?
No. This tool edits the JPEG's embedded metadata entirely in your browser.
Last updated: August 2026