JPG & JPEG DPI Checker
Inspect embedded JFIF/EXIF DPI tags and calculate maximum print size for JPEG files.
Drop your image here
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Calculate manually without an image
Enter pixel dimensions or physical inches/cm to calculate DPI and print sizes directly.
Checking DPI in JPEG Files
JPEGs store DPI information inside either the JFIF APP0 marker or the EXIF APP1 marker. Many export tools strip this metadata to save bytes for the web. Our tool reads whatever tags exist, while calculating effective DPI from the true pixel array. Test any file with our 300 DPI checker, update headers with our DPI converter, or calculate sharp print limits with our print size calculator.
Frequently Asked Questions
Yes, provided it is saved at high quality (quality 85–100) and contains sufficient pixel dimensions. Avoid saving repeatedly as JPEG to prevent compression artifacts.