PDF OCR (Values Scan)
Extract text from scanned PDF images using Tesseract.js
File Upload
Convert PDF or images to text via OCR
✨ Convert
- Multi-language support
- Local processing
- Progress bar
- Copy to clipboard
- Page-by-page scan
💡 Info
**Privacy OCR** Most OCR tools upload your docs. We process them locally.
**Technology** Uses Tesseract.js for pure client-side recognition.
🚀 Usage
- 1
Upload scanned PDF.
- 2
Wait for language model.
- 3
Start OCR.
Overview
This tool is designed for fast, local processing with no server upload. It focuses on clarity and repeatable results.
When to use it
- • When you need a quick result without installing software.
- • When you must keep files on your device for privacy.
- • When you want a predictable output for reuse or sharing.
How it works
Your file is processed in the browser. The workflow is deterministic and optimized for common document patterns.
Best practices
- • Start with a small sample to confirm output expectations.
- • Keep file names simple to avoid OS-specific edge cases.
- • If results look off, try the tool again after a page refresh.
Common mistakes
- • Uploading encrypted or corrupted files without preparing them first.
- • Assuming a tool will fix formatting issues outside its scope.
- • Closing the tab before the download completes.
⚠️ Limits
- • Performance depends on device
- • Tesseract.js model download needed
📥 Inputs & Outputs
Inputs
- Scanned PDF Formats: pdf
Outputs
- Extracted Text Formats: n/a
🔒 Privacy & Security
- • OCR happens on your device.
🛠 Troubleshooting
Low accuracy?
Ensure the scan is clear and upright.
Slow?
OCR is CPU intensive.
Language?
Currently defaults to English, check settings for more.
❓ FAQ
Is it fast?
It depends on your computer speed.
Free?
Yes.
Images supported?
Yes, works on images too.
Handwriting?
Poor results on handwriting.
Table extraction?
Extracts plain text only.
Offline?
Needs internet to load model first.