OCR PDF — Make Scanned Documents Searchable
Add a Tesseract text layer to image PDFs. Scan tips, accuracy, and follow-up conversion tools.
Published June 1, 2025 · 1 min read
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Searchable scans
Scanned PDFs are pictures of pages. OCR PDF adds an invisible text layer so you can search and copy content in any viewer.
Best results
- Scan at 300 DPI, straight pages
- Grayscale for text forms
- Follow with PDF to Word if you need editable layout
Sources & references
Primary references used when researching and fact-checking this guide. See our editorial methodology.
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Tesseract OCR — documentation
— Google / open source
OCR accuracy factors and language packs.