All toolsChange Image DPI · Free online tool

Change Image DPI online

Set new JPG or PNG DPI metadata for print workflows without resizing, resampling or altering the image's pixel dimensions.

Local processingNo uploadNo watermark
Browser processing ready
Three simple steps

How to use the Change Image DPI tool

No software, signup or hand-holding required.

01

Choose your file

Select JPG, PNG from your device.

02

Adjust and change DPI

Choose useful settings, then let your browser create the result.

03

Download instantly

Review the output and save one file or the complete batch.

What to expect

A focused Change Image DPI workflow

Input and result

Use JPG, PNG input to produce JPG, PNG. Set new JPG or PNG DPI metadata for print workflows without resizing, resampling or altering the image's pixel dimensions.

Practical limitation

Changing DPI updates print-density metadata only; it does not resize pixels or create additional image detail.

Local-first privacy

How we handle your files

Change Image DPI runs inside your browser. Selected files and pasted data are processed on your device, not uploaded to ToTube Tools or kept after the page is closed.

No server uploadNo account requiredNo hidden watermark
Common questions

Good to know

Answers specific to this tool and its current capabilities.

Does changing DPI resize image pixels?+

No. This tool updates print-density metadata while leaving the original pixel width and height unchanged.

Which files support a DPI change here?+

JPG files receive JFIF density metadata and PNG files receive a standards-based pHYs chunk.

What DPI should I use for printing?+

The correct value depends on physical print size and workflow; 300 DPI is a common starting point for high-quality prints.