The default value is -1.

A value of -1 designates auto determination for both PDF417 and DataMatrix.

For PDF417 barcodes:

The row range is 3 - 90 inclusive.

Note: Rows * columns cannot exceed 928. This is the maximum size of a PDF417 barcode.

For Data Matrix barcodes:

The row ranges are:

• 10 x 10
• 12 x 12
• 14 x 14
• 16 x 16
• 18 x 18
• 20 x 20
• 22 x 22
• 24 x 24
• 26 x 26
• 32 x 32
• 36 x 36
• 40 x 40
• 44 x 44
• 48 x 48
• 52 x 52
• 64 x 64
• 72 x 72
• 80 x 80
• 88 x 88
• 96 x 96
• 104 x 104
• 120 x 120
• 132 x 132
• 144 x 144
• 8 x 18
• 8 x 32
• 12 x 26
• 12 x 36
• 16 x 36
• 16 x 48

Note: This property is not used with 1D barcodes.

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