Make Scanned PDFs Searchable
Free OCR — extract text from image-based PDFs
100% client-side OCR processing · No data sent to any server · Up to 20 MB
Need true searchable PDFs with embedded text?
Parsli AI creates actual searchable PDFs with an embedded OCR text layer — compliant with PDF/A archival standards. Process thousands of scanned documents automatically.
For image files (not PDFs), use Free Online OCR or Image to Text. For text-based PDFs, try PDF to Text.
Why use this tool
Private & secure
Your PDF is processed entirely in your browser using Tesseract.js OCR. Files never leave your device.
No sign-up required
Use it instantly. No account, no email, no credit card. Just upload your scanned PDF.
Free & unlimited
No limits, no watermarks, no paywalls. Process as many scanned PDFs as you need.
How it works
Upload your scanned PDF
Drag and drop a scanned or image-based PDF. Up to 20 MB.
OCR extracts the text
Each page is rendered and processed with Tesseract OCR to extract all readable text.
Copy or download text
Copy the searchable text to your clipboard or download as a .txt file. Content is now searchable and usable.
What this tool handles
Works great with
- ✓Scanned PDFs from flatbed scanners
- ✓PDFs created from phone camera photos
- ✓Image-based PDFs with clear printed text
- ✓Single or multi-page scanned documents
- ✓Faxed documents saved as PDF
For these, try Parsli AI
- Low-quality or blurry scanned PDFs
- Handwritten scanned documents
- Embedded text layer in output PDF
- PDF/A archival compliance
- Batch OCR for hundreds of files
Tips for best OCR results
Scan at 300 DPI or higher
ABBYY and the Library of Congress both recommend 300 DPI as the minimum for reliable OCR. Higher DPI means more detail for the engine to work with.
Use grayscale mode
For text documents, grayscale scanning maximizes contrast and produces better OCR results than color scanning while keeping file sizes manageable.
Keep files under 10 pages for browser OCR
Browser-based OCR processes each page individually. For documents over 10 pages, consider using Parsli AI which runs OCR on dedicated servers for faster processing.
Perfect for
Legal Professionals
Make scanned contracts, court filings, and depositions searchable for review and discovery.
Government & Compliance
Convert scanned public records and regulatory filings into searchable, accessible documents.
Archivists & Records Managers
Digitize and make searchable historical documents, old archives, and scanned records.
Accessibility Coordinators
Make scanned PDFs accessible to screen readers by extracting the text layer.
Frequently asked questions
What does 'make PDF searchable' mean?
A scanned PDF is essentially an image — you can see the text, but you can't select, search, or copy it. Making it 'searchable' means using OCR to read the image and extract the actual text content, so you can search within the document, copy text, and use it in other applications.
Is this tool free?
Yes, completely free with no limits. No account, no sign-up, no credit card. The OCR processing happens in your browser using Tesseract.js.
Do you store my PDFs?
No. All processing happens entirely in your browser. Your PDF never leaves your device. Pages are rendered to images locally and processed with Tesseract.js OCR — nothing is uploaded to any server.
How accurate is the OCR?
For clear scans at 300 DPI, accuracy is typically 90–95% on printed text. Lower resolution or poor-quality scans may produce less accurate results. For the highest accuracy on difficult documents, Parsli AI uses Google Gemini which achieves 99%+ on most printed text.
Does this create a searchable PDF file?
This tool extracts the text content as copyable/searchable plain text. For creating an actual PDF with an embedded text layer (PDF/A compliant), use Parsli AI which can output searchable PDFs with the OCR text layer.
How long does OCR take?
Processing time depends on the number of pages and your device speed. Typically 5–15 seconds per page. Since OCR runs in your browser, faster devices process more quickly.
What about handwritten PDFs?
This tool has limited handwriting support. For scanned handwritten documents, use our Handwriting to Text tool or Parsli AI for 95%+ accuracy on cursive and messy handwriting.
What file size limit?
Up to 20 MB. OCR is more computationally intensive than text extraction, so we recommend a lower size limit for smooth browser-based processing.
Is this compliant with PDF/A archival standards?
The PDF/A standard (ISO 19005) requires embedded searchable text for archival compliance. This free tool extracts text as a separate file. For PDF/A-compliant output with embedded text layers, use Parsli AI.
Does this work on mobile?
Yes, but OCR is CPU-intensive. For best performance on multi-page scanned PDFs, use a desktop browser. Single-page PDFs work well on mobile.
Why Searchable PDFs Matter
According to Adobe, over 2.5 trillion PDF documents exist worldwide, with a significant portion being scanned images with no searchable text layer (source: Adobe Document Cloud). These image-only PDFs are effectively invisible to search engines, compliance tools, and screen readers.
The PDF/A standard (ISO 19005) for long-term digital archiving requires that documents contain searchable text. Government agencies, law firms, and healthcare organizations are increasingly required to maintain searchable archives.
Accessibility standards also mandate searchable text. The WCAG 2.1 guidelines (W3C) require that documents be machine-readable for screen readers. In the US, Section 508 requires all federal documents to be accessible, which means scanned PDFs must have OCR text layers.
Free OCR vs Parsli AI
| Feature | Free Tool | Parsli AI |
|---|---|---|
| Extract text from scanned PDFs | Yes | Yes |
| Output format | Plain text (.txt) | Searchable PDF + JSON |
| Accuracy on printed text | 90–95% | 99%+ |
| Handwritten text | Limited | 95%+ (Gemini AI) |
| PDF/A compliance | No | Yes |
| Batch processing | One at a time | Via API |
| Integrations | None | Sheets, Zapier, Make |
| Price | Free forever | Free tier + paid |
Works everywhere — no install needed
Desktop
Chrome, Firefox, Safari, Edge
Mobile
iOS, Android
Tablet
iPad, Android tablets
Make all your scanned documents searchable.
Parsli processes scanned PDFs with AI-powered OCR and creates searchable documents automatically. Extract structured data or just make content findable. Free up to 30 pages/month.
No credit card required · 30 free pages/month