NSDL PAN Signature Resizer
✅ 2.0cm x 4.5cm | 200 DPI | 10KB-50KB
Resize signature for Protean (NSDL) PAN Application. Use Black Ink only.
Click to Upload Signature Scan
Fit signature inside the 2.0×4.5 ratio box:
NSDL PAN Signature Resizer: Fix 200 DPI and 2×4.5 cm Errors
Applying for a Protean (NSDL) PAN card requires more than just a clear signature. The digital portal uses strict automated validation that checks for Physical Dimensions (2cm x 4.5cm), Resolution (200 DPI), and File Weight (10KB – 50KB).
If your signature keeps showing a “Dimension Mismatch” or “Low Quality” error, it is because your scan doesn’t meet the digital metadata requirements of the NSDL server. Our NSDL PAN Signature Resizer provides an instant, secure solution to these hurdles.
The Problem: Why PAN Signatures Get Rejected
Signature rejection is the #1 reason for PAN application delays. The most common “Problems” include:
- Resolution Failure: Most mobile scanners save images at 72 DPI. NSDL requires 200 DPI. Without this, the signature will look “grainy” on the printed PAN card.
- Size Paradox: Because signatures are mostly white space, they naturally result in tiny file sizes (2KB to 5KB). NSDL requires at least 10KB to ensure the ink lines are thick and readable.
- Color Rejection: Signatures in Blue Ink or on Lined Paper are frequently rejected. NSDL prefers high-contrast Black Ink on plain white backgrounds.
The Solution: Optimized Signature Calibration
Our tool is specifically designed to solve the Protean PAN Signature problem by applying the following “Solutions”:
- 200 DPI Upscaling: We set the internal pixel width to 354 x 157 px, which perfectly mimics a 200 DPI scan at 4.5 x 2.0 cm.
- Force-Weight Technology: If your signature is too “light” (under 10KB), our tool injects safe data padding to increase JPG size to the 15KB-25KB range.
- Contrast Enhancement: The tool is tuned to make black ink pop against the white background, ensuring the NSDL automated reader can verify it instantly.
NSDL PAN Signature Checklist (2026)
| Specification | Official Requirement (The Solution) |
| Physical Dimensions | 2.0 cm (Height) x 4.5 cm (Width) |
| Digital Resolution | 354 x 157 Pixels (at 200 DPI) |
| File Size Range | 10 KB to 50 KB |
| Ink Requirement | Black Ink Pen Only |
| Paper Type | Plain White (No Lines/Grids) |
How to Resize Signature for PAN Card (Protean)
- Sign: Use a black pen on a clean piece of white paper.
- Scan/Photo: Take a clear, top-down photo. Ensure there are no shadows.
- Upload: Use our NSDL PAN Signature Resizer tool above.
- Crop: Move the 4.5×2.0 ratio box to fit your signature comfortably.
- Download: Save the JPEG. It is now ready for the Protean portal.
Important Note: A perfect signature is only half the battle. You also need a 3.5×2.5 cm photo. Use our NSDL PAN Photo Resizer to fix your photo errors in one click.
Frequently Asked Questions (FAQ)
Q: Can I use a blue ink pen for a PAN signature?
A: While some offline forms might accept it, for Online Protean (NSDL) applications, black ink is highly recommended for better scan clarity and faster approval.
Q: My signature is 5KB. How can I make it 10KB?
A: This is the most common NSDL signature problem. Use our tool above; it automatically uses a JPG size increase algorithm to push the file size into the safe 10KB-50KB bracket.
Q: Why does the portal say “Invalid DPI”?
A: This happens when the image metadata doesn’t match the 200 DPI standard. Our tool solves this by resizing the image to 354×157 pixels, which represents the correct 200 DPI density for a 4.5x2cm space.