Document Scanner & Deskew
Perspective deskew, enhance contrast, and convert skewed phone photos into crisp scanner-grade documents.
Drag & Drop a Document Photo here or Click to Browse
Supports photos of receipts, bills, invoices, IDs, and certificates (JPG, PNG, WebP).
🔒 100% Client-Side Privacy: Your documents, invoices, and sensitive contracts never leave your browser RAM.
Why Use an In-Browser Document Scanner & Deskew Tool?
Taking photos of documents with a smartphone camera is quick, but angled lighting, curved paper edges, and perspective distortion make them difficult to read, print, or submit to government and corporate portals. Commercial scanner apps often lock high-resolution downloads behind paywalls or upload your confidential invoices, payslips, and contracts to external servers.
🔒 Zero Cloud Uploads
Your sensitive financial records, PAN cards, Aadhaar cards, and legal stamp papers are processed entirely in your browser RAM using bilinear matrix unwarping.
📐 4-Corner Keystone Correction
Drag the 4 corner handles to match the document borders. The homography engine unwarps perspective skew, squaring the page to a clean rectangular layout.
✨ Magic Color Contrast Filter
Removes desk and thumb shadows, brightens dull grey paper to crisp white, and sharpens ink text for maximum legibility.
Frequently Asked Questions
How does 4-corner perspective unskewing work?
When you capture a document from an angle, it forms an arbitrary quadrilateral rather than a rectangle. AG World Tools calculates an 8-parameter projective homography matrix between the quadrilateral corners and a standard rectangular canvas. Backward pixel sampling is then applied so every pixel from the paper is interpolated into the unskewed document without holes or stretching artifacts.
What is the difference between Magic Color and B&W Document modes?
Magic Color whitens the background paper while preserving original ink colors such as company logos, blue ballpoint signatures, and red approval stamps. B&W Document mode converts the entire page to pure high-contrast black and white, ideal for photocopying, legal filings, and official records where toner reduction is desired.
Can I export directly as a multi-page or A4 PDF?
Yes. By selecting the "Cleaned PDF Document (A4 Print-Ready)" export option, your straightened document is formatted into an ISO standard A4 PDF page ready for printing or instant email forwarding.