If set to true then leading and trailing brackets are included if the selected Barcode standard requires them. This property is default set to true.
Some barcode standards in their strictest form have leading and or trailing brackets in the text line. Those can optionally be skipped.
EAN8 and EAN13 are example of standards that have this, EAN8 has both leading and trailing while EAN13 only has trailing bracket.
EAN13 Barcode
EAN8 Barcode