I tested this by taking a screenshot of the introduction blurb. This is what it came up with:
Tesseract s is 2 pure Javascript port of the popular Tesseract OCR engine.
This library supports more than 100 languages, automatic text orientation and script detection, a simple interface for reading paragraph, word, and character bounding boxes. Tesseract s can run either in 2 browser znd on & server with NodeJS.