How it works
- 1Choose a scanned or image-based PDF.
- 2Run OCR; existing text is preserved and scanned pages are recognized locally.
- 3Download searchable PDF, plain text or positioned JSON.
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BROWSER · PDF.js + Tesseract.js staged local multilingual WASM
OCR PDF
OCR scanned PDFs locally in your browser with Tesseract.js WASM and download searchable PDF, TXT or positioned JSON results.
✓ Browser-based processing✓ Local Tesseract.js WASM OCR✓ Automatic mixed-script refinement
Choose a PDF fileOCR runs on this device; the document is not uploaded
OCR runtime
Local WASM OCR
The OCR engine and automatic mixed-script models load from Toolardo; the PDF is processed only on this device.
No file selected.
About this tool
OCR PDF reads existing text directly and uses local Tesseract.js WASM OCR for scanned pages. The original PDF stays on your device.
Common uses
searchable pdflocal ocrpdf ocr online
Frequently asked questions
Is my PDF uploaded?
No. PDF rendering and OCR run locally in your browser.
Why can the first run take longer?
The browser must download and cache the OCR engine and the required language models.