LocalPDF
Privacy-First PDF Tool
Extract text from scanned PDFs and images using advanced OCR technology with intelligent language detection. Convert non-searchable documents to searchable PDFs with invisible text layer, or export as plain text, hOCR, or TSV — all in your browser.
Your scanned documents never leave your device. Cloud OCR services upload sensitive files to remote servers. LocalPDF runs Tesseract.js locally for maximum privacy.
Advanced 6-method detection system automatically identifies document language from 45+ supported languages including English, Russian, German, French, Spanish, Chinese, Japanese, Korean, Arabic, Latvian, Lithuanian, Estonian, and more. Analyzes filename, special characters, geographic keywords, and actual content using the Franc library.
Unlike simple text extraction, LocalPDF creates genuine searchable PDFs with an invisible text layer overlaid on the original image. Search engines and PDF readers can find text while preserving the exact visual appearance of your scanned document.
Export results in 4 different formats: Plain Text (.txt) for simple editing, Searchable PDF for archival, hOCR (.html) for machine processing with bounding boxes and confidence scores, or TSV (.tsv) for spreadsheet analysis.
Once loaded, OCR works offline. Perfect for confidential documents like contracts, invoices, or medical records that shouldn't be transmitted.
Many online OCR tools limit free users to 10-50 pages. With LocalPDF, process PDFs of any length without restrictions.
Intelligent worker management reuses language models instead of reloading them, making multi-page OCR and language switching significantly faster.
No paid tiers, no credits system. OCR as many documents as you need in as many languages as you want without hitting usage caps.