Print-Ready Standards

Unlock Gallery Quality with 300 DPI

Inject professional-grade metadata into your JPEG and PNG files. Ensure your digital assets meet the strict 300 DPI requirements for high-end printing without losing a single pixel of quality.

Instant Metadata Injection
100% Client-Side
Optimize Now How it works
Metadata Editor
Resolution: 300 DPI
Density: High Definition
Ready for Print
Print Production · Real 300 DPI Metadata

Pro 300 DPI Changer

Inject true DPI tags — works with JPEG & PNG. No server, 100% private.

Select Image to Optimize

Drag & Drop or Click · JPG, PNG up to 20MB

Expert Printing FAQ

Everything you need to know about DPI and image resolution.

DPI (Dots Per Inch) is a measure of dot density, specifically the number of individual dots that can be placed in a line within the span of 1 inch. For professional printing, 300 DPI is the gold standard.

No. This tool only changes the metadata instructions for the printer. It does not add or remove pixels, meaning your image quality remains 100% original.

Professional Printing Knowledge

Why is 300 DPI important?

DPI tells printers how dense to place ink. 300 DPI is the gold standard for crisp, gallery‑quality prints — unlike 72 DPI screens.

Does this change pixel dimensions?

No. We only update metadata (EXIF/pHYs). Your image size stays the same — no upscaling, no quality loss.

100% private & secure

Processing happens entirely in your browser. We never upload your files. Works offline after page load.

JPEG & PNG supported

We inject DPI using EXIF for JPEG and pHYs chunk for PNG. Both are industry standard for print workflows.