Image DPI Converter

Change image resolution DPI (Dots Per Inch) locally in your browser. Perfect for NSDL, SSC, RRB, and Visa application portals.

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Converter Settings

Target DPI (Resolution)

Specify Custom DPI

Conversion Method

Change Metadata Only Keeps 100% original pixels and quality. Modifies file resolution headers. Instantly processed.

Resample Pixel Dimensions Resizes image pixels to preserve physical print dimensions at target DPI. Re-encodes output.

Physical Print Size

Width

Height

Measurement Unit

Drag and drop your image here

Supports JPEG, JPG, and PNG files

DPI Comparison Specification

Compare the specs of the uploaded image vs target output.

Specification	Original Image	Target Output
File Name	file.jpg	file.jpg
Format	JPG	JPG
Resolution (DPI)	-- DPI	300 DPI
Pixel Size	0 x 0 px	0 x 0 px
Print Dimensions	0 x 0 in	0 x 0 in
File Size	0 KB	-- KB

DPI Conversion & Print Requirements Guidelines

DPI: Measures the print density of an image. Setting it to 300 DPI tells printer engines to lay 300 pixels per inch, resulting in a crisp, sharp physical photo (standard requirement for document uploads).

Change Metadata Only Mode: This changes the DPI property stored inside the file metadata headers (JFIF segment in JPEGs or pHYs chunk in PNGs). It completes in milliseconds and does not touch image quality or pixels. This is highly recommended for official recruitment portals that reject recompressed images.

Resample Mode: Changes the pixel grid size. If you have an image and want it to print exactly 2 inches x 2 inches at 300 DPI, Resample mode will resize the pixel width/height to exactly 600 x 600 pixels and set the metadata header to 300 DPI.

Portal Specifications: NSDL photographs require 200 DPI (3.5 x 2.5 cm). RRB requires 200 DPI. US Visa/Passport applications require 300 DPI (2 x 2 inches, i.e., 600 x 600 pixels).