True metadata injection for JPEG & PNG. Prepare images for high‑quality printing, posters, and publications — 100% private, no upload.
JPEG, PNG · up to 20MB
No server processing — everything stays on your device.
DPI (dots per inch) tells printers how dense to place ink dots. A 300 DPI image prints at 300 dots per inch — the gold standard for magazines, flyers, and photo books.
We modify the image metadata (EXIF for JPEG, pHYs chunk for PNG) without altering a single pixel. Your file size stays nearly identical, and quality remains untouched.
All processing happens in your browser. Your images never leave your device — ideal for confidential documents and quick adjustments.
Divide pixel dimensions by DPI to get inches. For example, 3000×2400 px at 300 DPI = 10" × 8". Use our tool to verify before sending to print.