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Image DPI Converter (300 DPI)

Convert image resolution to 300 DPI, 600 DPI, or 150 DPI for printing and passport portals.
Local-first

Upload photo to convert to 300 DPI for print

Supports JPEG photos. Converts 72 DPI screen resolution to official print standards without quality loss.

How this tool works

What it accepts, how to use it, and where your input is processed.

Official 300 DPI Print Standards

Converts 72 DPI screen photos to true 300 DPI or 600 DPI by directly updating JFIF and EXIF density headers required by passport offices, visa portals, and printers.

Zero Quality Loss (Lossless Header Rewriting)

Updates binary resolution tags without re-compressing or degrading underlying photo pixels. The original visual clarity is 100% preserved.

100% Client-Side Processing

Binary metadata modification runs locally in your browser using DataView buffers. Your sensitive documents never leave your device.

Need an extra feature or found an edge case?Send Feedback

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