Left Thumb Impression (LTI) Resizer & Compressor
Crop excess paper margins, scale to 200 × 200 px (or 240 × 240 px), and lock file weight between 10 KB and 20 KB (or 20–50 KB) JPG with sharp ridge lines.
Supports JPG, PNG, HEIC, WEBP, PDF, SVG, TIFF, AVIF, GIF, BMP
No files selected yet. Drag & drop photos, documents or click browse above.
Thumb Impression Specifications Across Indian Exams
Verify whether your notification mandates 10–20 KB or 20–50 KB:
| Exam / Authority | Pixel Dimensions | File Size Bracket | Ink & Scan Rule |
|---|---|---|---|
| SSC / State Police / Defence | 200 × 200 px (1:1) | 10 KB – 20 KB JPG | Clear whorl/ridge lines on white paper |
| IBPS PO, Clerk, SO & RRB | 240 × 240 px (3 × 3 cm) | 20 KB – 50 KB JPG | 200 DPI blue or black ink, not smudged |
| SBI PO & SBI Junior Associates | 240 × 240 px (3 × 3 cm) | 20 KB – 50 KB JPG | Left thumb rolled lightly without blotches |
| NTA NEET-UG Fingers & Thumb | Full 10-Finger Panel | 10 KB – 200 KB JPG | All left & right fingers + thumbs clearly visible |
How to Capture a Clean, Non-Smudged Thumbprint on Your Phone
Pressing too hard onto a wet ink pad fills the fine friction ridges of your thumb, producing a solid dark blob that biometric verification software rejects as an invalid scan. Tap your thumb lightly onto the pad, do a test press on scrap paper first, and press the second lighter impression onto clean unruled white paper.
Photograph the impression under bright daylight without phone shadow, drop it into PixelKit, and crop tightly around the print. Our 10–20 KB range compressor keeps fine ridge contrast intact while guaranteeing exact byte compliance.
Switch to 20–50 KB in 1 Click
Applying for IBPS or SBI? Change Min–Max in Stage 3 to 20 KB – 50 KB and width/height to 240 × 240 px.
Zero Biometric Data Risk
Fingerprint scans are permanent biometric identifiers—never upload them to cloud servers. PixelKit runs 100% locally.
Optional Grayscale Mode
Toggle B&W Document mode in Fine-Tune settings to boost contrast on faint phone photos.
Related Presets, Calculators & Companion Studios
Jump directly to a pre-configured studio with exact settings locked in:
Complete IBPS PO/Clerk upload suite.
State Bank of India recruitment upload tool.
Strict 10KB–20KB signature crop & compressor.
Boost tiny thumbprint/signature files to 20KB.
Binary-search 20KB image compressor.
UPSC Civil Services & OTR photo studio.