Scan to PDF
Use an explicitly activated device camera or imported photos to build a local scan stack. Review every detected boundary, adjust four corners with touch-sized keyboard-accessible handles or numeric controls, apply perspective correction and enhancement, reorder pages, and optionally make the result searchable.
- Processed locally in your browser
- No watermark
- No sign-up
- Works offline
Capture pages
Camera permission is requested only when you press Start camera.
Or import document photos
JPG · PNG · WebP · works when camera access is unavailable
How it works
- 1Start the camera explicitly or import existing document photos.
- 2Review the suggested boundary and adjust all four corners for each page.
- 3Reorder, rotate, and choose color, auto, grayscale, or black-and-white enhancement.
- 4Export a multi-page PDF, optionally adding local OCR searchable text.
Your privacy
This tool runs entirely inside your browser using JavaScript and Web Workers. Your document is never uploaded to any server — you can even disconnect from the internet and keep working once the page has loaded.
Frequently asked questions
▸When is camera permission requested?
Only after you press Start camera. If permission is unavailable or denied, photo import remains fully usable.
▸Is automatic edge detection final?
No. It is a lightweight local suggestion and can be wrong. PaperZero always exposes all four corners for review and adjustment.
▸Are captured pages uploaded?
No. Camera frames, crop coordinates, corrected images, OCR, and PDF assembly remain in browser memory.