Online OCR PDF
Convert scanned PDFs into searchable documents with text extraction. Highly accurate, privacy-first OCR processing entirely in your browser.
*Pro users can sync usage across devices.
Powerful Features
Searchable Text
Extract text from scanned documents and images within PDFs to make them searchable.
Privacy First
OCR processing is performed 100% locally in your browser. No files are transferred to any server.
Fast & Precise
Leverages powerful OCR engines to ensure high quality text recognition at speed.
Secure Engine
Uses a self-hosted client-side engine with no third-party API dependencies.
How to Use
Select or drop your scanned PDF file
Choose the primary language for recognition
Wait for the OCR engine to process the document
Download your searchable PDF or extracted text
Privacy & Security First
Usage & Transparency
This tool runs entirely in your browser's local RAM. While we suggest a 100MB target for maximum stability on all devices, your actual limit is determined solely by your hardware. Modern desktops can often process files up to 500MB or more instantly and securely.
Frequently Asked Questions
How does the OCR work without transferring?
We use a WebAssembly (WASM) version of the Tesseract OCR engine that runs directly inside your web browser. This means your computer does the work, and your files never leave your machine.
What languages are supported?
The library supports over 100 languages. Our interface currently focuses on English, but more can be processed depending on the engine configuration.
Is the quality of OCR high?
Yes, it uses the industry-standard Tesseract engine. Quality depends on the clarity of the original scan or image.
Can I extract text as a separate file?
Yes, our tool allows you to both create a searchable PDF and copy/download the extracted text directly.
Make Scanned PDFs Searchable Offline Using Powerful Client-Side OCR
When you scan a physical document—like a signed contract, an old book, a warehouse invoice, or a legal brief—the resulting PDF is functionally just a photograph. Because the scanner simply takes a static picture of the page, the text is completely flattened into the image layer. You cannot highlight paragraphs, you cannot copy phrases into your clipboard, and worst of all, you cannot use the crucial "Ctrl+F" command to search for specific keywords across hundreds of pages. In order to digitize this information and unlock its utility, you must run the file through an Optical Character Recognition (OCR) engine.
However, performing OCR on sensitive documents has historically posed a massive security risk. Traditional OCR software is either prohibitively expensive to install locally, or heavily reliant on free cloud-based converter websites. If you use a cloud service, you are forced to upload your scanned, confidential paperwork to a remote server for processing. This exposes your private data, signatures, and proprietary information to devastating third-party data breaches and non-consensual retention policies.
The Revolution of WebAssembly Tesseract OCR
Our tool completely changes the paradigm of document recognition by bringing enterprise-grade OCR technology directly into your web browser. By integrating a sophisticated WebAssembly (WASM) implementation of Tesseract—the industry standard, open-source AI recognition engine—we empower your personal device to perform the heavy lifting.
When you load your scanned PDF into our tool, the machine-learning algorithm executes entirely on your local CPU. It analyzes the contrast, isolates the individual characters on the raster image, and overlays a hidden, searchable, and selectable text layer back onto the document. At no point in this intensive analytical process does a single byte of your document leave your computer. We provide absolute data privacy by keeping the internet completely out of the equation.
Unlock High-Accuracy Text Extraction
The local OCR engine leverages deep neural networks (LSTMs) optimized for character recognition, resulting in highly precise text extraction even from documents that are faded, skewed, or printed in complex legacy fonts. After processing, the tool outputs a perfectly structured, searchable PDF document that looks identical to the original image but functions like a native word processor file. Whether you are archiving historical texts, auditing enormous financial receipts, or digitizing a legal discovery cache, you can finally retrieve the information instantly.
- Zero Upload Infrastructure: Perform deep algorithmic learning on your sensitive documents locally. Guarantee your compliance with stringent organizational security policies.
- Create Indexable Documents: Transform "flat images" into highly searchable PDFs. Instantly highlight, copy, and search for names, dates, and figures across massive archives.
- Extract Raw Text: In addition to generating a searchable PDF, you can instantly export the recognized strings into a raw text file (.txt) for easy data manipulation and storage.
- Overcome Server Bottlenecks: Cloud OCR services artificially throttle speed to save money. By utilizing your own device's RAM and CPU, you can process enormous, multi-page files up to 500MB without being pushed into a slow server queue.
Bring your dead documents back to life. With our private, client-side OCR engine, you can digitize, search, and extract text from scanned images flawlessly, while ensuring your private data remains explicitly yours.