Upload Document Scan

Upload signature / thumb impression snapshot

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Adjustment Settings

Background Contrast Cutoff (Shadow threshold)

200

Increase threshold to strip away darker shadows and gray background spots.

Brightness

Contrast

Saturation: 0

Output Background Mode

Ink Color Overwrite

Auto-Crop Borders (Remove Blank White Spaces)

Add Name & DOB Text Label to Signature

Target Output Dimensions

Standard Dimensions Presets

Width (px)

Height (px)

Target File Size Limit (KB)

20 KB

Before & After Comparison

ORIGINAL SCAN

No image uploaded

ENHANCED OUTPUT

No preview ready

Output Dimensions 200 x 50 px

Enhanced File Size 8.5 KB

Target Limit 20.0 KB

Encoding Format JPEG

Auto-Crop detects where your writing starts and stops and cuts out the empty margins.
Transparent Background output is useful for applying signatures on digital letters or PDFs. Use Solid White for government exam forms.
For signatures written in pencil, increase Contrast to make the writing dark and visible.

Signature & Thumbprint Enhancer