Type: float
Default: 0 the thickness of each line drawn on the barcode image is reduced by this percentage amount. This property may be used to compensate for ink spreading during wet-ink printing.
Allowed values: 0 - 50 (%)
A positive reduces the thickness of bars by the calculated amount of the thinnest bar. A negative value reduces the thickness of bars by the percentage applied to the bar thickness (so a bar three units wide is reduced by an absolute amount that is three times greater than that which would apply to a one unit bar)
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