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OCR PDF

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Run optical character recognition (OCR) on scanned PDF pages to make the text searchable and selectable. The visual appearance is preserved with an invisible text layer.

Frequently Asked Questions

What is OCR and how does it work?

OCR (Optical Character Recognition) analyzes scanned images of text and converts them into searchable, selectable text. SecurePDF adds an invisible text layer on top of the original scanned image.

Which languages are supported?

SecurePDF OCR currently supports English (Tesseract eng language pack). Additional languages are on the roadmap.

Does OCR change the appearance of my PDF?

No, the visual appearance is preserved exactly. OCR adds an invisible text layer behind the image so you can search and select text without altering the look.

What DPI should I use for OCR?

300 DPI is recommended for most documents. Use 150 DPI for fast processing of clear scans, or 600 DPI for poor-quality scans or small text.

Can I OCR a multi-page scanned PDF?

Yes, OCR is applied to every page of the uploaded PDF. Free users can process files up to 100 MB.

OCR PDF

Frequently Asked Questions

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OCR PDF

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Frequently Asked Questions

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