Specialized converter · runs 100% in your browser
PDF to Searchable PDF OCR
Add an invisible OCR text layer to a scanned PDF so it becomes searchable + indexable while keeping the original page images. Each page is rendered, OCR'd, and rebuilt with the text laid over the image at the correct coordinates. Output is a standard PDF that opens in any reader.
How to use
- Drop your PDF file.
- Pick the document's language from the dropdown.
- Tesseract.js loads the language data (~10 MB per language, cached after first use).
- OCR runs locally and the Searchable PDF output is offered for download.
FAQ
How accurate is the OCR?
Tesseract is one of the best open-source OCR engines. For clean, modern text it's typically 95-99% accurate. Handwriting, low-contrast scans, or unusual fonts can drop accuracy significantly.
Why does the first conversion take a while?
The first run downloads ~10-15 MB of language data. After that it's cached for the rest of your session.
Does my document or image upload to a server?
No. Conversion runs entirely in your browser using WebAssembly and Web APIs. Open the Network tab in DevTools while you convert — you'll see no outbound traffic carrying your file.
Is this really free?
Yes. No signup, no quota, no upgrade tier. The conversion runs on your machine, so it costs us nothing to host.