OCR PDF
Add a searchable text layer to scanned or image-based PDF documents using Optical Character Recognition.
Overview
The OCR PDF tool applies Optical Character Recognition to scanned or image-based PDF pages, creating an invisible text layer behind the page images. This makes the document fully searchable, selectable, and accessible without altering its visual appearance. OCR is essential for digitising paper documents and meeting accessibility requirements.
How to Use
- Navigate to OCR PDF from the Security & Optimization menu.
- Upload your file using drag-and-drop, Browse Files, or cloud storage (Dropbox / Google Drive).
- Select the document language for optimal recognition accuracy.
- Click OCR to process.
- Download the result when processing completes.
Options
| Option | Description |
|---|---|
| Language | Select the primary language of the document text. This improves recognition accuracy for language-specific characters and dictionaries. |
Tips & Notes
Higher-quality scans produce better OCR results. Aim for at least 300 DPI when scanning documents. Ensure the pages are straight and the text is not skewed for best accuracy.
Pages that already contain a text layer are skipped to avoid duplicating text. Only image-based pages are processed.
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