Client-Side Privacy: Zero Server Upload

Visa & Passport Signature Checker

Verify signature aspect ratio, ink stroke density, background cleanliness, and pixel contrast against official electronic filing guidelines.

Signature Image

Upload Signature Image

Upload JPG or PNG signature scan or photo. We check background purity, ink clarity, and framing.

Select Signature Image

Readiness & Metric Report

Upload a signature image to view instant biometric and optical quality breakdown.

Why Use This Tool Before Visa Submission?

Consular electronic application systems (including USCIS, IRCC, UKVI, and European consular platforms) routinely reject applications due to minor technical document defects: incorrect dimensions, excessive file size, unsupported formats, or poor optical clarity. VisaDocAssist allows travelers to test and prepare their files in advance, completely inside their browser with guaranteed privacy.

Zero Server Storage

Files remain strictly in your browser memory.

Published Consular Rules

Audited against current government standards.

Immediate Remediation

One-click auto-fixes for common technical issues.

Frequently Asked Questions

What makes a compliant signature for visa portals?

Official portals require horizontal framing, pure white or transparent background, and distinct, dark ink strokes without paper shadows.

Does the tool auto-whiten the background?

Yes. Click "Auto-Whiten & Enhance Ink" to remove shadows and optimize stroke contrast.

Disclaimer: VisaDocAssist is an independent preparation and checking tool. It is not a government website and does not guarantee visa approval or document acceptance.