Convert JPG to 300 DPI
Update the JFIF density marker in your JPEG files to 300 DPI for flawless photo lab printing.
100% In-Browser Processing: Physical DPI header metadata is injected directly on your device without server transmission.
Drop your image to change DPI
or browse to upload
Supports JPG, PNG, and WebP up to 25 MB • Converts to 300 DPI, 150 DPI, 72 DPI, or custom value
Direct JFIF Header Modification for JPEG
PrintReady inspects your JPEG binary structure and writes a clean JFIF APP0 marker specifying 300 dots per inch. Your pixel data is copied losslessly.
Frequently Asked Questions
No. In Metadata Mode, the image pixels are not decoded or recompressed.