Resize Signature to 20KB Online Free
Accurately resize and compress specimen signature photos for UPSC, SSC, FPSC, State PSC, Bank PO, and job application forms. Guaranteed under 20KB or 10KB.
Supports JPG, JPEG, PNG, WEBP, and HEIC files
Official Portal Signature Dimensions & Size Limits
Review the exact mandatory parameters specified by major examination commissions and recruitment boards:
| Recruitment / Exam Body | Required Dimensions | Allowed File Size Range | Format Required |
|---|---|---|---|
| UPSC (Civil Services, NDA, CDS) | 140 Γ 60 pixels (3.5 Γ 1.5 cm) | 10 KB to 20 KB strictly | JPG / JPEG Only |
| SSC (CGL, CHSL, MTS, GD) | 140 Γ 60 pixels (4.0 Γ 2.0 cm) | 10 KB to 20 KB | JPG / JPEG |
| IBPS & SBI (Bank PO / Clerk) | 140 Γ 60 pixels | 10 KB to 20 KB | JPG / JPEG |
| FPSC & PPSC Examinations | 50mm Γ 20mm (Approx 200Γ80 px) | Under 20 KB / 25 KB | JPG / JPEG |
| Railway Recruitment Board (RRB) | 140 Γ 60 pixels | 10 KB to 20 KB | JPG / JPEG |
| Passport & Visa Applications | 200 Γ 100 pixels or 6cm Γ 2cm | Under 50 KB | JPG / PNG |
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How to Capture and Prepare a Perfect Digital Specimen Signature
Digital application validation systems reject up to 14% of submitted signatures due to paper shadows, colored backgrounds, or incorrect aspect ratios. Follow these 4 steps to guarantee approval:
- Use Pure White Unlined Paper: Always sign on clean white photocopy paper. Never sign on ruled or notebook lines, which can be interpreted as stray pixels.
- Use Dark Blue or Black Ink: Gel pens or fine rollerballs provide deep, consistent ink density. Avoid light ballpoint pens or pencils that appear washed out when scanned.
- Ensure Shadow-Free Lighting: Hold your phone directly parallel over the signature in bright daylight or under a desk lamp to prevent casting your hand's shadow across the writing.
- Crop Tightly: Before uploading, crop the image tightly around the ink strokes to maximize signature visibility within the final 140x60 container.
Why Biometric Privacy Matters When Resizing Signatures
Your signature is a legally binding biometric credential used across banking institutions, legal contracts, property transfers, and government registries. When you upload signature images to typical "free converter" websites, your handwritten biometric mark is transmitted to remote cloud databases where it can be stored, harvested, or exposed in server leaks.
AuraToolkit360 solves this completely: All image calculations, edge whitening, pixel aspect scaling, and JPEG quantization happen 100% locally inside your browser's memory using HTML5 canvas. Your signature never touches the internet.