Barcode2D.AspectRatio sets the target Height/width ratio for PDF417 barcodes or the symbol width (in segment pairs) for RSS Expanded stacked symbols
Default: 1.0
Allowed values 0.1 – 10.0
Note that for PDF417 symbols this is the target value; it may not be possible to produce the barcode image with the desired aspect ratio (because of restrictions in the barcode specification). This property is ignored for barcode types other than PDF417 and RSS.
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