The allowable range of heights varies from one barcode pattern to another. The form design must not specify a height outside the allowable range.Reference_Syntax.moduleHeight = “5mm | measurement“
• 5mm (default for 2D barcodes)When this property is not supplied, the default behavior depends on the type of barcode. One-dimensional barcodes grow to the height of the enclosing field, limited by the allowable height range. 2D barcodes default to a module height of 5mm.