Scan Documents to PDF Online Free
Scan documents with your phone or webcam and save as PDF. Auto edge detection, perspective correction, grayscale and B&W filters — no app install needed.
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CocoPDF Scanner turns your phone or webcam into a portable document scanner. Open the tool, point your camera at any paper document — receipts, contracts, notes, ID cards, forms — and capture it. The scanner automatically detects the document edges, straightens the perspective, and applies a scan-style filter so the result looks like it came from a real flatbed scanner.
All image processing runs locally in your browser using WebAssembly. Your photos are never uploaded until you tap "Convert to PDF" at the end. You can capture multiple pages, reorder them, delete the bad ones, and re-shoot any page that didn't come out right. When you're happy, the pages are merged into a single PDF and downloaded instantly.
No signup, no watermarks, no app install. Files are deleted from our server within one hour. Works on iPhone, Android, Windows, Mac, and Linux — anywhere with a modern browser.
How to Scan a Document to PDF — 3 Simple Steps
- 1
Upload your files
Drag and drop your files onto the upload box, or click to browse. CocoPDF accepts multiple files up to 50 MB each.
- 2
Adjust the settings
Choose the options you need for PDF Scanner. The default settings work well for most documents.
- 3
Download the PDF file
Click the process button. The file is generated on our server and your PDF download starts automatically.
Frequently Asked Questions
Do I need to install an app to scan documents?
No. CocoPDF Scanner runs entirely in your browser. Open the tool on your phone, allow camera access, and start scanning. No app, no signup, no install.
Does the scanner work on iPhone and Android?
Yes. The scanner uses your phone's rear camera by default and works on iOS Safari, Chrome, Firefox, and Edge on Android. For best results, ensure the page is loaded over HTTPS (camera access requires a secure connection).
Can I scan multiple pages into one PDF?
Yes. After capturing the first page, tap "Add another page" to scan more. All pages are combined into a single PDF when you finish.
What is the perspective correction?
When you photograph a document at an angle, the scanner auto-detects the corners and warps the image so the document appears flat and rectangular — like a real scanner. You can also drag the corners to adjust manually.
Can I make my scan black and white?
Yes. After capturing, choose between Color, Grayscale, or B&W filters. B&W produces the high-contrast "scanned document" look that compresses better and reads cleanly.