Convert Image DPI

Change DPI/PPI of images without resizing pixels. Convert to 300 DPI for printing or 72 DPI for web use.

Convert Image DPI Online - Free DPI Converter Tool

Need to change your image DPI for printing or web use? Our free DPI converter changes the DPI (dots per inch) metadata of images without resizing pixels. Perfect for preparing images for professional printing (300 DPI) or web use (72 DPI).

How to Convert Image DPI

  1. Upload your JPEG image file
  2. View current DPI value
  3. Select target DPI (72 for web, 300 for print)
  4. Preview new print size at target DPI
  5. Click Convert and download your image

Understanding DPI Conversion

DPI conversion changes how an image will print, not how it looks on screen. Our tool performs metadata-only conversion - it changes the DPI number without touching the pixels.

Metadata-Only Conversion

  • Pixel Dimensions: Remain exactly the same
  • Print Size: Changes based on new DPI
  • Quality: No quality loss - pixels are untouched

Common DPI Conversion Scenarios

  • 72 to 300 DPI: Convert web images for printing (print size becomes smaller)
  • 300 to 72 DPI: Convert print images for web use
  • Any to 300 DPI: Standardize images for professional print

Frequently Asked Questions

Does changing DPI affect image quality?

No. Metadata-only DPI conversion does not affect image quality - it only changes how the image will print. The pixels remain identical.

Can I convert 72 DPI to 300 DPI for printing?

Yes, but understand this only changes metadata. If your image has enough pixels (e.g., 3000 × 2000), it will print well at 300 DPI. What matters is total pixel count, not the DPI number.

Why only JPEG files?

JPEG files store DPI information in EXIF metadata, which our tool modifies directly. Other formats store this information differently. For PNG files, the DPI is stored in the pHYs chunk which requires different handling.