OCR PDF Online Free — Make Scanned PDFs Searchable
Turn a scanned, image-only PDF into a searchable document. OCR runs in your browser and adds a hidden text layer so you can select and search the text — nothing is uploaded.
Frequently Asked Questions
Is my PDF uploaded to a server?
No. OCR runs entirely in your browser with a WebAssembly build of Tesseract. Your document never leaves your device.
What does OCR do here?
It reads the text in a scanned (image-based) PDF and adds an invisible text layer on top, so the pages look identical but the text becomes selectable and searchable.
Which languages are supported?
English, Vietnamese, French, German, Spanish, and Portuguese. Pick the document language so the right model loads.
Why does the first run take a while?
The OCR engine and language model (a few MB) download the first time. After that it is cached, and processing depends on page count and your device.
Is it free?
Yes — completely free, no account, no watermark, no limits.
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