How to use Banking Thumb Impression
- Upload your image — JPG, PNG or WEBP, any size.
- Tap Format image — it centre-crops to the exact official size.
- Check the result size: it must be inside the official KB range.
- Download the formatted JPG and upload it to the form.
Frequently asked questions
Is my image uploaded to a server?
No. Formatting runs in your browser. Your image never leaves your device.
Official requirements
- ✓ Format: JPG/JPEG only
- ✓ File size: 20 to 50 KB
- ✓ Dimensions: 240 px × 240 px
- ✓ Aspect ratio: 1:1 square
- ✓ Left thumb impression in blue ink preferred
- ✓ Scan on clean white background
- ✓ Thumb lines should be clear and visible
- ✓ No blur, shadows, or cropped edges