Image DPI Changer

Rewrite the DPI metadata of a PNG image (e.g. 300 DPI) so print software sizes it correctly — the pixels stay untouched.

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Drop a PNG image here

PNG

Frequently Asked Questions

What is DPI and what does this tool change?+
DPI (dots per inch) is print metadata that tells software how large to print an image. This tool rewrites only that metadata chunk.
Does it resize or recompress my image?+
No — the pixel data is copied as-is. Only the pHYs metadata chunk that stores the DPI value is rewritten.

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Image DPI Changer — free online change image dpi, png dpi changer, set dpi 300, image dpi metadata, dpi converter, change dpi without resizing. No signup required. Works in your browser.