How to OCR a scanned PDF in your browser

Make a scanned PDF searchable and selectable with on-device OCR. Text stays on your machine.

  1. Open OCR PDF and drop a scanned document.
  2. Run recognition — Tesseract runs in your browser.
  3. Download the PDF with an invisible searchable text layer over the original pages.
  4. Optionally open the result in the PDF Editor to fix wording.

Quality depends on scan resolution and clarity. Crooked scans improve after Deskew.

Privacy note

The OCR engine is vendored for UnboundPDF. Page images are not sent to a remote OCR API for the default path.