Resize Signature to 10KB, 20KB for SSC, UPSC and Govt Exams
Free tool to resize Scanned Signature for online application forms. Reduce file size to 10KB or 20KB instantly.
Click to Upload Signature
Supports JPG, JPEG, PNGHow to Resize Signature to 10KB - 20KB?
- Sign & Snap: Sign on white paper with a Black Ink pen. Draw a box of roughly 6cm x 2cm for best results. Take a clear photo in good light.
- Upload: Click the upload box above and select your signature image (JPG, PNG).
- Select Size:
- Click “Under 20KB” for SSC CGL/CHSL/MTS (Target: 10KB-20KB).
- Click “Under 50KB” for UPSC or standard Photo compression.
- Download: The tool automatically adjusts dimensions and quality to fit the strict limit.
Official SSC and Govt Exam Size Chart (2025-26)
Ensure your files match these exact dimensions to avoid rejection on the new ssc.gov.in portal.
| Document | File Size | Dimensions (WxH) |
| SSC Signature | 10 KB – 20 KB | 6.0 cm x 2.0 cm |
| SSC Photo | 20 KB – 50 KB | 3.5 cm x 4.5 cm |
| UPSC Signature | 20 KB – 300 KB | 350px x 350px |
| OTR Photo | 20 KB – 50 KB | 3.5 cm x 4.5 cm |
⚠️ Important Note: SSC servers are automated. They strictly reject files over 20KB or under 10KB. Use the “Under 20KB” button above to ensure you are in the safe zone (e.g., 14KB - 18KB).
Why use PhotoKB for Signatures?
Uploading a signature is tricky because the file size limit is very small (often 10KB-20KB). Normal compressors make the signature blurry and unreadable.
PhotoKB uses a special “High Contrast” method. We force the background to pure white and darken the text. This allows us to reduce the file size to 10KB while keeping the ink sharp and legible, meeting strict government requirements.
Why Was My Signature Rejected?
We have analyzed thousands of rejected applications. The top 3 reasons for rejection in SSC CGL, CHSL, and MTS forms are:
- Blurry Compression: Most online compressors make the image blurry when reducing it to 10KB. Our tool uses Adaptive Sharpening to keep the text readable even at small sizes.
- Wrong Dimensions: The new SSC forms prefer a wider aspect ratio (6cm width x 2cm height). Square signatures often get stretched or cut off.
- Background Noise: Taking a photo in low light creates "noise" (grey grain) in the background. Ensure you use a flash or daylight.
How to Create a Perfect SSC Signature (Step-by-Step)
- Draw a Box: Draw a rectangle of 6cm x 2cm on a clean white paper.
- Sign Clearly: Sign inside the box using a Black Ballpoint Pen (Blue ink is allowed, but Black is preferred for better contrast).
- Take a Photo: Place the paper in bright sunlight. Hold your phone parallel to the paper to avoid angles.
- Upload and Resize: Use the tool above. Select the "Under 20KB" option.
- Verify: Before final submission, zoom in on the downloaded file. If the letters are clear, you are ready to apply.
Frequently Asked Questions
Q: Can I use Blue Ink for SSC Signature?
While the official notification simply says "Signature," it strongly recommends Black Ink on white paper. Blue ink often fades during the scanning process or turns grey when compressed to 10KB, which can lead to rejection.
Q: My file is 21KB, will it be accepted?
No. The SSC server is automated. It will strictly reject any file larger than 20KB or smaller than 10KB. You must use a compressor to get it under 20KB.
Q: How do I resize for UPSC?
UPSC has different rules (pixel-based). Click the "Under 50KB" button in our tool, or use our dedicated UPSC Resizer, which is optimised for the 350x350 pixel requirement.
Q: Is it safe to upload my signature here?
Yes, 100% Safe. Unlike other websites, PhotoKB.in operates entirely in your browser. Your signature image is processed using JavaScript inside your own phone or computer. It is never sent to our servers, meaning we literally cannot see or store your data.