tuneDPI converter

Convert Photo to 200 DPI

Banking portals, insurance claim forms, and government registration systems (NSDL, UTIITSL, LIC) often require photos with exactly 200 DPI embedded in the JFIF metadata header. If your phone camera saved at 72 DPI (default for most smartphones) or 96 DPI (screenshots), the portal's automated validator will reject it - even if the photo looks perfect. This tool rewrites the DPI metadata to exactly 200 without changing a single pixel, preserving your original image quality and dimensions while making the file pass strict DPI validation checks.

Target DPI

200 DPI

Pixel quality

Unchanged

Format

JPG / JPEG

Processing

100% in-browser

cloud_upload

Drop a JPG file

Set DPI for any JPG/JPEG image

Select File

tune

Set to 200 DPI

Pre-configured DPI tool - upload your photo and get a 200 DPI JPEG instantly.

Check current DPI

Verify your photo's DPI before and after conversion.

compress

Compress to exact KB

After setting DPI, compress to your portal's specific file size limit.

200 DPI conversion specifications

Output DPI

200 DPI (both horizontal and vertical)

What changes

Only the JFIF/EXIF DPI metadata header

What stays the same

Pixel dimensions, image quality, color space, file content

Input format

JPEG / JPG only (DPI is stored in the JFIF segment)

Output format

JPEG with updated DPI header

File size impact

Negligible - typically ±1 byte change

Common use cases

PAN card (NSDL), LIC, banking KYC, insurance portals

How it works

Upload your JPEG photo

Drag and drop or click to browse. The tool reads the current DPI from the JFIF header and displays it. Most phone photos are 72 DPI, scanner photos are 150-300 DPI, and screenshots are 96 DPI.

DPI metadata rewritten to 200

The tool modifies only the JFIF DPI/PPI header bytes - specifically the X and Y density fields in the APP0 marker. No pixels are resampled, no quality is lost, and no compression is re-applied. The visual output is bit-for-bit identical to the input.

Download and upload to your portal

Save the updated JPEG file. When the portal reads the JFIF header, it will see exactly 200 DPI. Combine with the Exact KB Compressor if the file also needs to meet a specific size limit.

Frequently asked questions

What is the difference between DPI and PPI?

DPI (Dots Per Inch) refers to print resolution - how many ink dots a printer places per inch. PPI (Pixels Per Inch) refers to screen resolution. In digital photography, these terms are used interchangeably because the JFIF header stores a single 'density' value that both printers and portal validators read as DPI. When a portal says '200 DPI', they mean the JFIF density header must be set to 200.

Will converting to 200 DPI make my photo smaller or larger?

Neither. This tool changes only the metadata header - not the actual pixel data. A 1000x1000 pixel photo will still be 1000x1000 pixels after conversion. The only difference is that the file header now says '200 DPI' instead of '72 DPI', which tells the portal (or printer) how physically large to display/print the image.

Why do portals require exactly 200 DPI?

Many Indian government portals (NSDL for PAN cards, LIC for insurance, banking KYC) were built with legacy systems that read the JFIF DPI header to determine scan quality. They expect 200 DPI because that was the standard resolution for flatbed scanners used in offices. If the header shows 72 DPI (phone default), the system assumes the scan quality is too low - even though modern phone cameras capture far more detail than a 200 DPI scanner.

Can I convert PNG or HEIC files to 200 DPI?

DPI metadata is stored in the JFIF segment, which is specific to JPEG files. For PNG or HEIC files, first convert to JPEG using our Photo to JPEG Converter, then set the DPI to 200. PNG files store resolution in a pHYs chunk, but most portals only read JFIF headers.

How do I check if my photo is already 200 DPI?

Use our DPI Checker tool - upload your photo and it instantly reads the JFIF header to show the current DPI. On Windows, you can also right-click the file → Properties → Details → look for 'Horizontal resolution' and 'Vertical resolution'.

Bharat Kumar G.verified

Technical SEO & Document Processing Expert

Bharat is the founder of ReadyToSubmit. With years of experience in technical web development, he builds privacy-first, client-side tools to help Indian government exam aspirants format their applications accurately and securely without server uploads.

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