Scan PDF (OCR)
Add searchable text to scanned PDFs using OCR technology.
Drop PDF here or click to browse
Single file · Max 100.0 MB
How it works
- 1
Upload your scanned or image-only PDF.
- 2
Select the document language for best OCR accuracy.
- 3
Click "Run OCR" and download a searchable, selectable-text PDF.
Why use our Scan PDF (OCR)?
100% Private
All processing happens in your browser. Files are never uploaded to any server.
No signup required
Use the tool instantly — no account, no email, no credit card needed.
Works everywhere
Runs on any device with a modern browser — desktop, tablet, or mobile.
No quality loss
Direct PDF manipulation preserves fonts, images, and vectors at original fidelity.
Frequently asked questions
Which languages does OCR support?
Over 100 languages are supported via Tesseract.js including English, Tamil, Hindi, Spanish, French, German, Chinese, Arabic, and many more.
How accurate is the OCR?
For clear, well-scanned documents at 300 DPI or higher, accuracy typically exceeds 95%. Poor scans, skewed pages, or unusual fonts reduce accuracy.
Does it modify my original scanned images?
No. OCR adds an invisible text layer over your existing images — the original scans remain unchanged.
How long does OCR take?
A typical 10-page scan takes 15-30 seconds. Longer documents take proportionally more time as processing is page-by-page.
Can I OCR a PDF that already has some text?
Yes. The tool detects pages without text and runs OCR only on those pages, preserving existing text layers.