Drop a scanned PDF for text recognition
Extracts text from scanned documents using AI-powered OCR
Or drag and drop them here
Your files stay on your device · 0 uploads
PRIVATE PDF TOOL
OCR PDF — Scanned to Searchable
Extract text from scanned documents using AI-powered OCR — all in your browser.
100% client-sideNo server involved
No uploadsYour files stay private
No account neededStart merging instantly
How it works
Merge your PDFs in just a few clicks.
1. Upload your scanned PDF
Select a PDF containing scanned images or photographs of documents.
2. Start OCR processing
AI-powered text recognition runs locally in your browser.
3. Review extracted text
Preview the recognized text overlaid on your document pages.
4. Download searchable PDF
Save your new PDF with selectable, searchable text — processed 100% locally.
Your files never leave your device.
WhisperDocs runs entirely in your browser. All processing happens locally on your device, with no uploads, no accounts, and no tracking. Ever.
Processed in your browser
100% private
You stay in control
Common questions
Everything you need to know about merging PDF files with OCR PDF.
WhisperDocs OCR supports English out of the box. Additional language packs can be loaded automatically for many languages including Spanish, French, German, Chinese, Japanese, and more.
Accuracy depends on scan quality. Clean, high-resolution scans typically achieve 95%+ accuracy. Lower quality scans, handwriting, or unusual fonts may reduce accuracy.
No. OCR runs entirely in your browser using Tesseract.js (WebAssembly). Your documents never leave your device — full privacy guaranteed.
Yes. The original page images are preserved and an invisible text layer is added on top, making the PDF searchable while keeping the original appearance.
Processing time depends on the number of pages and scan resolution. A typical 5-page document takes 15-30 seconds. Longer documents process proportionally.