Searchable OCR PDF
Convert scanned and non-selectable PDF files into fully selectable, copyable, and searchable PDF documents. Done entirely in your browser with zero data leaks.
Drag & drop your scanned PDF here
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About Searchable OCR PDF
Convert flat, scanned, or non-selectable PDF files into fully selectable and searchable PDF documents with high accuracy. This tool executes entirely locally inside your browser—utilizing modern WebAssembly ports of Tesseract OCR and PDF-lib. This guarantees that your sensitive documents, contracts, and invoices never leave your device. All calculations, rasterization, and text mapping occur in a private browser environment without server communication, offering high security and compliance.
Key Features
- High-accuracy layout and character recognition via Tesseract.js
- 100% original visual fidelity preservation—only injects an invisible searchable layer
- Local offline execution—your confidential files are never uploaded to any server
- Adaptable OCR scale settings designed to run smoothly on low-end mobile devices
- Support for 10+ major world languages including English, Spanish, French, and Japanese
- Built-in sequential thread rendering to keep device memory load secure and stable
Frequently Asked Questions
Is this OCR PDF tool free to use?
Yes, completely free. There are no registration thresholds, usage limits, or hidden fees. Upload your document and start converting.
Are my documents secure?
Your files never leave your computer or mobile device. All rendering, OCR processing, and compilation run locally in your web browser via secure WebAssembly sandboxes.
Why does the original PDF quality remain unchanged?
Instead of re-encoding your PDF pages into flattened images, this tool preserves your original vector elements, images, and graphics. It scans the page, extracts coordinates, and maps a native hidden text layer directly on top of your existing PDF structure.
What does the OCR Precision setting do?
OCR accuracy is highly dependent on image resolution. Low precision uses a 1.0x scale (fast and ideal for older phones). Medium (1.5x) offers balanced performance. High (2.0x) matches desktop capabilities for maximum accuracy.
Which languages are supported?
We support over 10 languages including English, Spanish, French, German, Chinese, Japanese, Arabic, and Hindi. The requested language files are downloaded dynamically on demand.