To get character coordinates use Left, Top, Right and Bottom properties of the CharParams object.
To get word coordinates, use Word.Region
To get paragraph coordinates use Left, Top, Right and Bottom properties of the Paragraph object.
To get block coordinates use Region property of the Block object.
Note: sometimes the coordinates of the objects are changed comparing to the original image. This happens because the image being OCRed might go through orientation and geometrical distortion corrections, such as deskew. To restore the original coordinates, please use CoordinatesConverter object