Free · No Signup · Auto Quality
Compress Signature or Photo Below 20 KB Online
Compress a signature scan, thumbprint or small photo below the 20 KB JPEG limit used by SSC CGL, RRB Railway, IBPS PO, SBI, RBI and most Indian bank/government recruitment portals. Free, no signup, fully browser-based.
Open Tool & Auto-Compress to 20 KB →How It Works
- Upload your signature scan or photo.
- Optional: open Crop, click the 400 : 150 Signature ratio button to lock the right shape, then Apply Crop.
- Switch to Compress, select the ≤ 20 KB chip.
- Click Apply Compression.
- Download the JPEG, or use Download ZIP if you've prepared multiple files.
Where You'll Need a 20 KB File
- SSC CGL / CHSL / MTS — signature 4 × 1.5 cm, JPEG, 10–20 KB
- RRB Railway — signature, JPEG, 10–20 KB
- IBPS PO / Clerk / SO — signature 140 × 60 px, JPEG, 10–20 KB
- SBI PO / Clerk — signature, JPEG, 10–20 KB
- RBI Grade B / Assistant — signature, JPEG, 10–20 KB
- Many State PSCs with similar caps
Tips for a Crisp 20 KB Signature
- Sign on plain white paper using a black or dark-blue pen with a clean stroke.
- Scan or photograph in good daylight; crop tightly around the signature.
- Use the 400 : 150 Signature crop ratio so the aspect matches portal requirements.
- Resize to the exact pixel dimensions given by the portal (e.g., 140 × 60 px for IBPS).
- Then compress — 20 KB is plenty for a black-on-white signature.
Frequently Asked Questions
Will my signature stay readable at 20 KB?
Yes — signatures are mostly black-on-white with very little texture, so they compress extremely well. ImgPace's binary JPEG-quality search picks the highest possible quality that fits the 20 KB target.
Is this 20 KB compressor free?
Yes — completely free, no signup, no watermarks. Everything runs in your browser; nothing uploads.
Can I compress multiple signatures at once?
Yes. Upload all signature files, pick the 20 KB chip, hit Apply Compression — every file is fitted under 20 KB independently. Download all as a ZIP.