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PDF OCR

100% In-Browser Sandbox

Recognize text inside scanned documents and image-only PDFs. Powered by Tesseract WebAssembly running securely inside your browser worker.

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PDF OCR

Recognize text inside scanned documents and image-only PDFs. Powered by Tesseract WebAssembly running securely inside your browser worker.

OCR neural models run 100% locally in your browser via WebAssembly.

How to Use PDF OCR

  1. Step 1: Upload scanned PDF
  2. Step 2: Select document language
  3. Step 3: Run OCR and inspect extracted searchable text
  4. Step 4: Download text or searchable document

Technical Specifications & Limitations

  • Maximum file size: 30 MB.
  • Processes text via Tesseract.js WebAssembly directly inside your browser.
  • Languages supported: English, Spanish, French, German.

Troubleshooting Common Issues

⚠OCR takes 20-30 seconds to begin.

The browser downloads the WebAssembly language model on the first run and caches it locally for subsequent scans.

⚠Recognized text contains typos on faint handwriting.

Tesseract is optimized for printed fonts. Ensure your scanned document has high contrast and is right-side up.

🔒Privacy & Security Guarantee

All PDF processing for PDF OCR occurs 100% inside your local web browser sandbox using WebAssembly and client-side JavaScript. Your documents, images, and data are never transmitted over the internet or saved to external servers. Full confidentiality is preserved for sensitive scientific research, financial records, and legal contracts.

Frequently Asked Questions

Are my scanned documents sent to an AI cloud?

No. Tesseract WebAssembly runs inside your local browser worker thread. Your document data is never sent to any server.

Can I copy the recognized text directly?

Yes, the extracted text is displayed in a selectable text editor with a one-click 'Copy Text' button.

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