Document Scanner
A browser-based document scanner that straightens perspective, crops document borders, enhances contrast, and exports multi-page PDFs with zero watermark.
How to Use Document Scanner
Upload document photos or click 'Scan with Camera' to capture pages directly.
Adjust the 4 corner handles to align with the physical edges of your document.
Click 'Apply & Enhance' to straighten perspective and apply enhancement filters.
Choose from Auto Clean, Color Boost, Black & White, or Grayscale filters.
Export all pages together into a single PDF or download individual JPG/PNG images.
What This Tool Does
Uses 2D projective homography and bilinear inverse transformation to flatten tilted document photos into rectangular scans. Applies image processing algorithms for paper whitening and text contrast enhancement without transmitting any file data to external servers.
Common Use Cases
All perspective transformation, filtering, and PDF compilation execute 100% locally within your browser using HTML5 Canvas and WebAssembly. Camera streams and photos never leave your device.
Frequently Asked Questions
Does Phoenix Tools add a watermark to scanned PDFs?
No. All PDF and image exports are completely clean with zero watermarks, branding, or advertisements.
Can I scan multiple pages into one PDF?
Yes. You can add as many pages as you need, reorder or delete pages, and click 'Export (PDF)' to bundle them into a single document.
How does the perspective correction work?
You position 4 draggable corner handles over the corners of your paper. The browser solves an 8-variable projective matrix to deskew and flatten the document.