Activity «Tesseract» can be found in section «OCR».
Activity recognizes text from the image. For recognition is used OCR engine Tesseract.
There are 2 languages preset by default: "rus" and "eng". In order to use other language packages, they should be placed within Tessdata folder (within the folder where PIX is installed).
The Internet connection is not required for this activity. Tesseract is totally autonomous.