Document Scanner

Add one or more document photos — corners are detected automatically so you can crop right away. Fine-tune with the editing tools below the canvas, then save everything as a single PDF.

Tap here or press “Add Photo” below to add document photos.
Corners are detected automatically so you can crop right away.

Processing document...

Transform Photos into Professional Documents

Our free online document scanner uses advanced AI technology to detect document edges automatically, correct perspective distortion, and enhance readability. Add multiple documents, fine-tune with real-time editing tools, and save everything as a single high-quality PDF — with native sharing on mobile. Perfect for scanning receipts, contracts, notes, whiteboards, and any paper document with your smartphone camera - all processed securely in your browser.

Automatic Corner Detection

Corners are detected automatically the moment you add a photo, so you can crop right away. Manually adjust corners with the magnifier tool for pixel-perfect accuracy.

Perspective Correction

Powerful homography transformation straightens angled photos into professional rectangular documents. Real-time preview with adjustable brightness, contrast, and aspect ratio.

Batch Processing

Add and crop multiple documents at once. Thumbnail strip with drag-and-drop plus a dedicated reorder panel. Save all pages as a single combined PDF.

Smart Enhancement Modes

Three specialized modes: Color (preserves original colors), B&W (high-contrast text), and High Contrast (maximum readability). Automatic shadow removal and sharpening.

Rotation & Preview Controls

90° rotation controls for proper orientation. Live preview adjustments for brightness, contrast, width, and height before finalizing your document.

Advanced PDF Export

Create professional PDFs with customizable settings: multiple page sizes (A4, Letter, Legal, A3, A5), orientation options, margin control, and quality settings.

How to Use the Document Scanner

Press "Add Photo" (or drag and drop images onto the canvas) to add one or multiple photos of your documents. Corner detection runs automatically on the newly added photo so you can crop right away. The tool works best with clear photos taken from above. Supports JPEG, PNG, WebP, and HEIC formats.

Batch Processing: Add multiple documents at once. When there is more than one photo, a thumbnail strip appears below the canvas for easy switching.

When you add a photo the tool detects the document corners automatically and shows blue corner markers. You can:

  • Use as-is: If the detected position looks good, press "Apply Crop" right away
  • Manual adjustment: Drag corner markers to match your document's exact corners (magnifier tool appears for pixel-perfect placement), or press "Detect" to re-run detection

Touch Support: Works seamlessly on mobile devices with enlarged touch targets for easy corner adjustment on smartphones and tablets.

Below the canvas you'll find a one-row toolbar with everything you need:

  • Crop: Re-enter crop mode to adjust the document corners and re-apply the crop
  • Rotate: Rotate the photo 90° clockwise with a single tap
  • Adjust: Fine-tune brightness and contrast with live preview
  • Ratio: Stretch the width/height ratio to fix distorted proportions
  • Reorder: Open a panel to change the page order of your photos
  • Delete: Remove the selected photo (with confirmation)

All edits are previewed instantly on the canvas.

Press "Apply Crop" to run perspective correction. The tool straightens your document into a clean rectangular page. Press "Cancel" to leave crop mode without changes.

After applying the crop you can keep refining the result with the Rotate, Adjust, and Ratio tools — every change is previewed instantly on the canvas.

Press "Save PDF" to combine all your photos into a single PDF file. On mobile phones the native share sheet opens so you can send the PDF straight to any app; on desktop the file downloads.

  • PDF Settings: Use the gear button to set the file name and customize page size, orientation, margins, and image quality
  • Reorder: Use the Reorder tool (or drag thumbnails) to arrange pages before saving

All exports maintain the highest quality for professional use.

Why Use Our Document Scanner?

Completely Free

No subscription, no watermarks, no hidden fees. Scan unlimited documents with full access to all features.

100% Private & Secure

All processing happens locally in your browser. Your documents never leave your device or get uploaded to any server.

Multi-Device Support

Works perfectly on desktop, tablet, and mobile. Touch-optimized interface with no app installation required.

Professional Quality

AI-powered detection, perspective correction, and enhancement deliver scanner-quality results from phone photos.

Batch Processing

Add and crop multiple documents simultaneously, then save all pages together as a single combined PDF.

Universal Format Support

Supports all major image formats including JPEG, PNG, WebP, and HEIC. Export to high-quality images or PDF.

Frequently Asked Questions

Find answers to common questions about our document scanner

Our document scanner uses perspective correction (homography transformation) to straighten your document. Simply drag the corner markers to match your document boundaries, then process to remove shadows, enhance contrast, and sharpen text for a professional scanned appearance.

The tool processes everything locally in your browser using JavaScript and HTML5 Canvas with high-quality rendering optimizations. You can fine-tune results with the Rotate, Adjust (brightness/contrast), and Ratio tools. Multiple documents can be cropped together and saved as a single combined PDF.

Yes! Our document scanner is completely free to use with no limitations. You can scan as many documents as you want without any watermarks, subscriptions, or hidden fees. All features are available at no cost.

Absolutely! All document processing happens entirely in your browser - your images are never uploaded to our servers. Your documents remain completely private and secure on your device. We cannot see or access any of the documents you scan.

You can scan any type of paper document including receipts, invoices, contracts, business cards, notes, letters, certificates, whiteboards, handwritten notes, forms, tickets, and more. The tool works best with rectangular documents that have clear edges.

We support all popular image formats including JPEG, PNG, WebP, HEIC, and more. You can upload photos taken with your smartphone, digital camera, or from any image file on your computer.

Yes! When you add a document photo, corner detection runs automatically and places markers on the detected document edges. You can use these as-is or manually adjust the four corner markers by dragging them to the exact corners of your document. This is useful for documents with unclear edges or complex backgrounds.

The tool includes a magnifier feature that appears during corner adjustment for pixel-perfect placement. On touch devices, the markers are enlarged for easier manipulation, making it simple to adjust corners precisely even on smartphones.

After applying the crop, use the toolbar below the canvas: Adjust opens brightness and contrast sliders with live preview, Ratio lets you stretch the width/height proportions of the page, and Rotate turns the document 90° clockwise per tap until the orientation is correct.

If the crop itself needs refining, tap Crop to re-enter crop mode, adjust the corner markers, and apply again. Every change is previewed instantly before you save the PDF.

Yes! Our document scanner is fully responsive and works perfectly on smartphones, tablets, and desktop computers. You can take a photo with your phone's camera and scan it immediately in your mobile browser.

For best results: 1) Take photos in good lighting conditions. 2) Position the camera directly above the document when possible. 3) Ensure the entire document is visible in the photo with some background around the edges. 4) Keep the document as flat as possible. 5) Use a contrasting background (e.g., white paper on dark table).

Yes! Our tool supports batch processing. You can upload multiple document photos at once by selecting multiple files or dropping them all together. Each document will be shown in a thumbnail gallery, and you can process them individually or work through them sequentially.

All photos appear in a thumbnail strip below the canvas where you can switch between them or drag to reorder; the Reorder tool opens a dedicated panel for arranging pages. This makes it easy to organize multi-page documents before saving them together as a PDF.

When exporting multiple documents as PDF, you have extensive customization options:

  • File Name: Choose your own name for the exported PDF
  • Page Size: A4, Letter, Legal, A3, or A5
  • Orientation: Auto-detect, Portrait, or Landscape
  • Margins: None, Small (10mm), Medium (20mm), or Large (30mm)
  • Image Quality: Standard, High, or Maximum (affects file size)
  • Fit to Page: Option to automatically scale images to fit the page size

These settings ensure your PDF documents meet your specific needs, whether for printing, archiving, or sharing digitally.