Security level combo box

Some barcode types permit a variety of security levels to be adopted when text is converted into a barcode image. This combo box allows the security level to be selected. PDF 417 supports security levels from 0 - 8, 0 is no additional security, while 8 is a large amount of security - but at the price of a significantly larger barcode.

For Aztec barcodes in Normal mode the security level may be set to 0 (for default security) or 1 –99 to specify the percentage of the symbol to be devoted to error checking codes. For Compact and Full range modes this box accepts the number of "layers" to be used for the symbol (1-4 for Compact, 1-32 for Full range); for Runes the value is ignored.

This box will be greyed out or empty for barcode types that do not support user-selected security levels.

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Aspect ratio edit box