def align_columns(columns, bbox):
    """
    For every column, align the top and bottom boundaries to the final
    table bounding box.
    """
    try:
        for column in columns:
            column['bbox'][1] = bbox[1]
            column['bbox'][3] = bbox[3]
    except Exception as err:
        print("Could not align columns: {}".format(err))
        pass

    return columns