ISSN Barcode
		
		This Symbology is also known as 
				International Standard Serial Number, ISSN-13, ISSN-10, ISSN+5, ISSN+2, ISSN 
				Supplement 5/Five-digit Add-On, ISSN Supplement 2/Two-digit Add-On
		
				
		Overview
		
The ISSN (International Standard 
			Serial Number) is an eight-digit number which identifies periodical 
			publications as such, including electronic serials.
The ISSN is a numeric code which is used as an identifier: it 
			has no signification in itself and does not contain in itself any information 
			referring to the origin or contents of the publication.
		
		The ISSN takes the form of the acronym ISSN followed by two 
			groups of four digits, separated by a hyphen. The eighth character is a control 
			digit calculated according to a modulo 11 algorithm on the basis of the 7 
			preceding digits; this eighth control character may be an "X" if the result of 
			the computing is equal to "10", in order to avoid any ambiguity.
		
		
			Sample of an ISSN Barcode
Add-On or Supplement code
		The Add-On Symbols were designed to encode information 
			supplementary to that in the main bar code symbol on periodicals and paperback 
			books. The Add-On can be composed of 2 or 5 digits only.
		
		Light Margin Indicators - a greater than (>) and/or 
			less than (<) character - are intended to protected the essential light areas 
			to the left and right of the code that the barcode scanner needs to recognize 
			the beginning and end.
		
		How to create ISSN barcodes using BarcodeItem
		
		Note: Please refer to the Class 
			Reference documentation for more information about the properties and methods 
			stated in this document.
		
		In order to get an ISSN barcode image, please follow these 
			steps:
			
				- 
					Set the Symbology property to Issn
- 
					Setting up dimensions and quiet zones:
					
						- 
							Set the BarWidth property to 0.013 (Value is expressed in Inches)
- 
							Set the BarHeight property to 0.9 (Value is expressed in Inches)
- 
							If Guard Bars are needed:
							
								- 
									Set the EanUpcGuardBar property to True
- 
									Set the EanUpcGuardBarHeight property to 0.965 (Value is expressed in 
									Inches)
 
- 
							Set the QuietZone property to 0.091, 0, 0.091, 0 - Left, Top, Right, Bottom (Value is expressed in Inches)
 
- 
					Set the Code property with an ISSN number
- 
					Add-On Settings if needed:
					
						- 
							Set the EanUpcSupplement to Digits2 (Two-Digit Add-On) or Digits5
							(Five-Digit Add-On)
- 
							Set the EanUpcSupplementCode with the Add-On value which must be 2 or 5 
							digits only
 
- 
					Drawn Light Margin Indicators if needed:
					
						- 
							Set the DisplayLightMarginIndicator to True
 
ISSN barcode images example
		Code property = 1234-5678 will produce the 
			following barcode image: