OCR PDF
Extract text layers and reconstruct searchable PDFs using client-side processing.
Your PDF is processed locally in your browser.
PDFSimplify processes documents on your device using client-side WebAssembly and Web Workers. No document data is transmitted to our servers or external cloud services during processing.
In-Browser Optical Character Recognition
Performs local OCR entirely within your browser memory. Ideal for scanned receipts, articles, and invoices. Large multi-hundred-page scans are processed page-by-page to safeguard device memory.
Drop scanned PDF here to run OCR
Converts scanned image pages into searchable text and selectable PDFs
No file size limit imposed by server • Processed locally in your browserHow OCR PDF Works in Your Browser
Analyzes digital text streams and image contrast directly in your browser. For pages with text layers, extracts exact typography; for scanned pages, performs local contrast binarization and overlays selectable text.
Why client-side processing is more private:
Unlike conventional online converters, your documents never traverse external networks to third-party processing servers. Everything happens inside your local machine’s memory.
How to Use OCR PDF
Upload Document
Select your PDF document.
Process Text
Pages are analyzed sequentially in memory.
Download
Save your searchable PDF or copy extracted text.
Key Features
Helpful Tips
- •Documents with clean high-contrast text produce the most accurate searchable overlays.
Troubleshooting & Notes
- •Scanned pages without an existing digital text layer are analyzed via local canvas contrast binarization; full multilingual neural OCR requires heavy external models not bundled in-browser.
Frequently Asked Questions
Does this tool send my scans to an OCR cloud server?↓
No. All image rendering and character recognition algorithms execute 100% locally on your computer.
Can I download the text as a .txt file?↓
Yes. You can download a searchable PDF, a plain text file, or copy the text directly to your clipboard.
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Related Guides & Articles
What Is OCR and How Does Optical Character Recognition Work?
Discover how OCR converts pictures of letters into searchable, selectable text streams.
How to Extract Plain Text from a PDF Without Software
Extract selectable text streams with correct reading order, line breaks, and word counts in your browser.