Online Image DPI Converter (200 / 300 / 600 DPI)
Change print resolution metadata without resampling distortion or pixel loss. 100% client-side.
Core Features
- Lossless JFIF Header Injection: Modifies the metadata byte headers directly without re-compressing image pixels.
- Quick Exam DPI Presets: One-click presets for 200 DPI (SSC/Railway), 300 DPI (Passport/Lab), and 600 DPI (Archival).
- DPI Metadata Inspector: Reads existing horizontal and vertical DPI from your uploaded file.
How to use the Image DPI Converter (200/300/600)
Upload Image
Upload your JPG or PNG image.
Choose Target DPI
Select 200 DPI or 300 DPI preset.
Download Converted File
Save your file with embedded DPI metadata.
Official Specifications
- Supported Presets
- 72, 96, 150, 200, 300, 600, 1200 DPI
- Quality Mode
- Lossless Metadata Header Modification
- Output Formats
- JPG, PNG, TIFF, WEBP
Frequently Asked Questions
What is DPI and why do government exam portals mandate 200 or 300 DPI?
DPI stands for "Dots Per Inch." It is a metadata instruction embedded inside the image file that tells printers and document scanners how many pixels should occupy one physical inch of paper. Portals require 200 to 300 DPI to guarantee that when admit cards or verification lists are printed, the candidate's face and signature print sharply without jagged pixelation.
Does changing DPI from 72 to 300 increase my image file size or stretch my photo?
No. Our lossless DPI converter updates the JFIF / EXIF metadata header tags (Density Units and X/Y Density) directly without altering the underlying pixel grid. Your image remains at its original pixel sharpness while passing all portal DPI validation scripts.