How do I make a scanned PDF searchable?

Upload your scanned PDF to lnpdf and the OCR engine will recognize all the text in the images, creating a searchable text layer on top of the original pages.

What languages does the OCR support?

lnpdf's OCR engine supports dozens of languages including English, Spanish, French, German, Chinese, Japanese, Korean, and many more.

Will OCR change how my scanned PDF looks?

No. lnpdf adds an invisible text layer on top of the original scanned images, so the visual appearance remains identical while making the text searchable and copyable.

Can I OCR a PDF that already has some selectable text?

Yes. lnpdf detects which pages are image-based and applies OCR only where needed, preserving any existing text layers.

OCR PDF

Make scanned PDFs searchable and selectable by recognizing text with OCR technology.

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How to OCR PDF

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Select the file you want to process.

OCR PDF

We'll process your file automatically with our tool.

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Download your processed file instantly for free.

OCR PDF Features

Converts scanned image pages into searchable, selectable text
Supports dozens of languages for text recognition
Adds invisible text layer without altering the visual appearance
Smart detection — applies OCR only to image-based pages
Outputs a fully searchable PDF ready for archiving or editing

Frequently Asked Questions

Related Tools

OCR PDF Online

Apply OCR to scanned PDFs online for free. Convert image-based pages into searchable, selectable text. Everything runs in your browser — no uploads, no signups, no installs. Works on any device — desktop, tablet, or phone.