Resize & Crop

Image DPI Changer

Change an image's DPI (300, 72, 150) for print or web without resizing pixels.

How to use Image DPI Changer

  1. Upload your image.
  2. Enter the new DPI value (72, 150, 300 or custom).
  3. Confirm - pixel size stays the same.
  4. Download the image with updated DPI metadata.

What is Image DPI Changer?

Image DPI Changer rewrites the DPI (dots per inch) metadata inside PNG and JPEG files without touching a single pixel. Print shops and design software use DPI to decide physical print size - this tool lets you set exactly what they read.

Who is Image DPI Changer for?

Print designers preparing 300 DPI files for offset printing, photographers submitting to stock agencies, students meeting course requirements, and anyone hitting a "must be 300 DPI" upload rule.

Why use Image DPI Changer?

  • True metadata rewrite - no re-encoding, no quality loss.
  • Presets for 72, 150, 300, and 600 DPI.
  • Works with PNG (pHYs chunk) and JPEG (JFIF).
  • Original pixel dimensions stay untouched.

When should you use Image DPI Changer?

Sending files to a print shop, submitting artwork to a stock library, meeting a school assignment requirement, or fixing "low DPI" upload rejections.

Is Image DPI Changer safe?

Everything happens locally in your browser - the file bytes are edited on your device only.

Tips for best results

  • 300 DPI is the print-industry standard.
  • DPI does not change image quality - only physical print size.
  • To actually add pixels, use Image Upscaler instead.
  • Web images should stay at 72 DPI for smaller file size metadata.

Frequently asked questions

Does changing DPI make my image sharper?

No - DPI only affects print size, not screen quality. A 300 DPI image prints at higher density than the same image at 72 DPI, but both look identical on a screen.

Is my image uploaded to a server?

No. Every ImageEditPro tool processes your image directly inside your browser using JavaScript and the Canvas API. Files never leave your device, so your photos stay 100% private - even when you're editing sensitive documents or personal photos.

Is it really free? Any watermark or signup?

Yes, completely free. No account, no sign-up, no watermark, no daily limit. ImageEditPro is supported by unobtrusive ads so you can use every tool as many times as you need without paying.