Compress Image to 20KB Online
Instantly shrink signatures and photos to strictly under 20KB for SSC, UPSC, IBPS, GATE, and government recruitment portals without blur or data leaks.
Select one or multiple images to compress
Supports JPG, PNG, and WebP up to 50MB. Target exact KB limits (20KB, 50KB) or batch compress.
100% private. Files never leave your browser.
Official Government Exam 20KB Signature Specifications
Most government examinations enforce strict binary file size limits between 10KB and 20KB for candidate signatures. Uploading a 20.1KB file causes immediate rejection.
| Examination Portal | Required Signature Size | Format | Dimensions |
|---|---|---|---|
| SSC CGL / CHSL / MTS | 10 KB to 20 KB | JPG / JPEG | 4.0 cm × 2.0 cm |
| UPSC Civil Services (CSE) | Under 20 KB (Min 10 KB) | JPG | 350 × 350 px min |
| IBPS PO / Clerk / RRB | 10 KB to 20 KB | JPG / JPEG | 140 × 60 px |
| GATE / IIT JEE | 5 KB to 20 KB | JPEG | 2 cm × 7 cm |
Frequently Asked Questions About 20KB Compression
How do I compress my signature to under 20KB for SSC, UPSC, or GATE?
Simply upload your signature image above. FilePilot automatically sets the target to 20KB and uses iterative binary-search compression to ensure the resulting JPG file is strictly under 20KB without blurring your handwriting or ink strokes.
Will my signature be rejected by government portal image validators?
No. Government portal validators (such as SSC CGL, IBPS, UPSC, and State PSCs) reject files that exceed 20KB or have corrupted headers. FilePilot generates clean, standard-compliant JPEG blobs with clean Huffman tables that satisfy all portal upload checkers.
Is it safe to upload my signature on FilePilot?
Yes! Unlike other online compressors that upload your signature to a cloud server where it could be stored or leaked, FilePilot processes your image 100% locally in your web browser memory. Your signature never leaves your device.
Can I compress multiple signature or photo files together?
Yes! You can drag and drop multiple files at once. Every file will be compressed to meet the ≤ 20KB threshold, and you can download them individually or as a single ZIP archive.
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