Every year, thousands of highly qualified candidates have their Staff Selection Commission (SSC CGL) applications rejected at the final stage. The most common reason? A mistake during the photograph and signature upload process. The SSC uses automated software to scan applications, and if your photo dimensions, file size, or background color are even slightly off, your application is automatically discarded.

In this comprehensive guide, we will break down the exact rules for the SSC CGL 2026 examination and show you how to format your files correctly using our free, zero-server tools.

1. The Official SSC Photograph Rules

Your passport-size photograph is the most critical element of your application. The SSC has strict parameters that must be followed perfectly:

• Dimensions: The photograph must be exactly 3.5 cm (width) x 4.5 cm (height).
• File Size: The file size must be between 20 KB and 50 KB.
• Format: Only JPEG or JPG formats are accepted. (If you took the photo on an iPhone, it is likely a .HEIC file and will be rejected).
• Recency: The photograph should not be more than three months old from the date of publication of the Notice of Examination.

2. What Can Cause Photo Rejection?

Even if your file size is correct, your photo can be rejected for visual reasons. Ensure you avoid these common mistakes:

• Spectacles and Caps: Photographs with spectacles, dark glasses, or caps will be summarily rejected. Even if you wear prescription glasses daily, you must remove them for this photo.
• Background Color: The background must be a plain, light color. A solid white or light grey background is highly recommended. Dark or outdoor backgrounds will cause rejection.
• Facial Coverage: Both ears should be clearly visible. Your face should cover about 70% to 80% of the photo area.
• Blurriness: Miniature photos or photos that pixelate when zoomed in will not be accepted. Ensure the lighting is bright and clear.

3. The Official SSC Signature Rules

Just like the photograph, the signature upload has its own specific set of strict rules. A blurry signature is the second highest cause of application rejection.

• Dimensions: The signature box must be 4.0 cm (width) x 2.0 cm (height).
• File Size: It must be much smaller than the photo, strictly between 10 KB and 20 KB.
• Ink Color: You must sign on plain white paper using a Black or Dark Blue ink pen.
• Legibility: Signatures that are blurry, extremely small, or contain shadows from your mobile phone camera will be rejected.

4. How to Remove Shadows from Mobile Signatures

Most students take a picture of their signature using a smartphone. This often results in a grey, shadowy background that the SSC portal rejects. To fix this, you need to apply a "threshold" filter to make the background pure white and the ink pure black.

You can use our free AI Signature Cleaner tool. It uses an algorithm to automatically erase the paper background and compress the file to under 20 KB in one single click, entirely in your browser without uploading your data to any server.