Aspect ratio

PDF417 symbols may be reproduced with different number of codewords per row, and therefore in several different height to width ratios.

The user may select the target number of codewords per row. In general tall, thin barcodes read more reliable than short, wide symbols, although there may be restrictions applied by the type of barcode scanner employed.

The dBarcode library will attempt to form a symbol which meets a target number of codewords per row, but users should note that some things are just not possible!

The following character translations are made if the Flag is set (the flag checkbox in applications or the AztecFlag property in components)

 

String	converted to
{ET}	ASCII 4
{FS}	ASCII 28
{GS}	ASCII 29
{RS}	ASCII 30

 

Appended symbols are not supported at this time.

 

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Truncated PDF417