Cómo funciona la extracción de texto PDF en tu navegador
How PDF Text Extraction Works in Your Browser
Text extraction from PDF documents has traditionally required desktop software or cloud-based services, both of which raise privacy concerns. Our tool uses pdf.js, a powerful JavaScript library developed by Mozilla, to parse PDF binary data directly in your browser. This means your documents never leave your device.
Understanding OCR Technology
For scanned PDFs or images embedded in PDFs, regular text extraction won't work because the content is essentially a photograph. That's where OCR (Optical Character Recognition) comes in. Our tool integrates Tesseract.js to "read" text from images, supporting multiple languages including English, Korean, Chinese, and Japanese.
- When to use OCR: Scanned documents, faxes, or PDFs created from photos
- Regular extraction: Native PDFs with selectable text
- Language support: Choose the right OCR language model for best accuracy
Why Client-Side Processing Matters
When you extract sensitive business documents, legal papers, or personal records, sending them to a server creates unnecessary risk. Client-side processing ensures:
- Zero data transmission: Your files stay on your device
- No server logs: There's no record of your document on any server
- Offline capability: Once loaded, the tool works without internet