Imports IronOcr

Dim ocrTesseract = New IronTesseract()

Using ocrInput = New OcrInput()
    ocrInput.LoadPdf("scan.pdf")

    ' Image processing is automatically multi-threaded
    ocrInput.Deskew()

    ' OCR reading is automatically multi-threaded too
    Dim ocrResult = ocrTesseract.Read(ocrInput)
End Using