UPSC Signature Compressor – 20 to 100KB
Compress your UPSC signature to 20–100KB in JPG, free and fully in-browser.
UPSC requires the signature image to be 20–100KB in JPG, signed in black ink on a white background. Upload your scan and this tool brings it under 100KB while keeping it crisp.
imageto10kb compresses your UPSC signature to the accepted range without losing legibility, so the OTR form accepts it straight away. Everything runs locally in your browser and no file is ever uploaded.
💡 Tip: If your UPSC signature looks faint after scanning, darken it with more contrast before compressing rather than pressing harder on paper — a clean high-contrast scan compresses better.
How to resize the UPSC signature (20–100KB)
- Open imageto10kb. Drag your photo or signature onto the box above, or click to select a file.
- Confirm the preset. The target size and dimensions are already set for UPSC signatures. Adjust them if your notification differs.
- Click Compress. The image is resized and compressed in your browser to meet the required file size.
- Download & upload. Download the file and upload it to the official form — it will now pass the size check.
Frequently asked questions
What is the UPSC signature size limit?
UPSC requires the signature to be 20–100KB in JPG format, about 350–500 pixels wide.
Which ink colour should I use?
UPSC accepts only handwritten signatures in black ink on a white background.
Is PNG accepted?
No, UPSC accepts JPG/JPEG only for the signature.
Do I need to install any software?
No — imageto10kb works in your browser on any device, with nothing to download.
Are my documents uploaded anywhere?
No. Your photo and signature are processed locally in your browser and never sent to a server.