Compress Image to 20 KB Online Free
Reduce your photo and signature file size to exactly 20 KB or less in seconds without pixelation. Trusted for SSC, UPSC, IBPS, RRB & official online portals.
Drop your image here or browse files
JPG, PNG, WEBP • Fast, private & simple
Technical Specifications & Format Limits
Calibrated to meet strict administrative portal guidelines and high-resolution print standards.
| Target Size | Under 20 KB (18-20 KB) |
| Supported Inputs | JPG, JPEG, PNG, WEBP, BMP |
| Output Format | Standard JPG / JPEG |
| Recommended Dimensions | 140 x 60 px (Signature) or 200 x 230 px (Photo) |
| Processing Speed | < 0.3 Seconds |
Why Choose PhotoKB's Compress Image to 20 KB Online Free?
Engineered with high-fidelity canvas algorithms to avoid pixel distortion and rejection errors.
How to Use Compress Image to 20 KB Online Free in 3 Simple Steps
No technical skills needed. Complete your compression in under 5 seconds.
Upload Image or Signature
Drag and drop your file into the 20 KB compressor box above or select it from your device.
Auto-Compression to 20 KB
Our smart binary-search canvas engine automatically calculates optimal quality and dimensions to hit ≤ 20 KB.
Preview & Download
Check the real-time preview side-by-side and click "Download Image" to save your portal-ready file.
Common Use Cases & Supported Portals
Pre-configured to strictly comply with official examination authorities and government platforms.
Government Job Applications
Staff Selection Commission (SSC CGL/CHSL/MTS), UPSC CSE, State PSC forms requiring signatures between 10 KB - 20 KB.
Banking & Railway Exams
IBPS PO/Clerk, SBI, RRB NTPC photo and thumb impression specifications.
College & University Admissions
CUET, NEET, JEE registration portals needing ultra-lightweight scanned documents.
Passport & Identity Verification
Aadhaar, PAN card correction forms and local authority service uploads.
How to Compress Photo and Signature to 20 KB for Online Forms
Watch this quick demonstration to learn how to prepare your image correctly.
Click to Watch Interactive Tutorial
Frequently Asked Questions about Compress Image to 20 KB Online Free
Answers to common questions regarding specifications, rejection errors, and resolution.