Here is a complete, ready-to-run HTML document that performs OCR (Optical Character Recognition) on scanned PDFs to extract text. It uses Tesseract.js and runs entirely client-side with no uploads. ```html OCR PDF – Extract Text from Scanned PDF | Free & Private

🔍 OCR PDF – Extract Text from Scanned PDF

Convert scanned PDFs and images into editable text using OCR. 100% client-side, no upload, private.

📄🔍

Drag & drop a PDF file here, or click to browse

Select PDF

Ready

📝 Extracted Text

🔒 100% private: No file upload – OCR runs entirely in your browser. Your PDF never leaves your device.

📘 OCR PDF: Complete Guide & Best Practices

Our free OCR (Optical Character Recognition) tool extracts editable text from scanned PDFs and image-based documents. Using Tesseract.js, the industry-leading OCR engine, it converts each page into text right in your browser. No upload, no registration, completely private.

✨ How It Works

Upload your PDF – the tool renders each page as an image using PDF.js. Then, Tesseract.js analyzes the image to recognize characters and outputs plain text. You can choose language, resolution, and whether to process all pages or just the first. The result can be copied or downloaded as a TXT file.

🚀 Key Features

✅ Supports 10+ languages (English, French, German, Spanish, Chinese, Japanese, Arabic, etc.).
✅ Adjustable DPI – higher DPI improves accuracy but takes longer.
✅ Process all pages or just the first page.
✅ Copy extracted text or download as .txt file.
✅ 100% client-side, zero upload, private.
✅ Works with scanned PDFs, photos of documents, and image-based PDFs.

⚠️ Note: OCR on large PDFs (50+ pages) may take significant time and memory. For best results, use clear, high-contrast documents at 200-300 DPI.

❓ Frequently Asked Questions

Is my PDF data secure?

Absolutely. The entire OCR process happens inside your browser. Files are never uploaded to any server.

What languages are supported?

English, French, German, Spanish, Italian, Portuguese, Russian, Chinese (Simplified), Japanese, and Arabic. More can be added upon request.

Why is OCR slow on large PDFs?

OCR is computationally intensive. Each page is processed locally using your device's CPU. For large documents, be patient.

Can I OCR a regular (selectable) PDF?

Yes, but it's unnecessary. For already selectable PDFs, you can copy text directly. This tool is best for scanned/image PDFs.

Does it preserve formatting?

OCR extracts raw text. Formatting (bold, tables, columns) is not preserved – you get plain text.

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