Barcodes and QR codes

This element adds a barcode or QR code to the form based on the provided string. You can use it to link to your website or to uniquely identify a form (for example, generate personalized exam papers for each student).

Information from the barcode is decoded during recognition.

Aspose.OMT for .NET can generate and recognize a wide variety of barcodes:

• AustralianPosteParcel
• AustraliaPost
• Aztec
• Codabar
• CodablockF
• Code11
• Code128
• Code16K
• Code32
• Code39Extended
• Code39Standard
• Code93Extended
• Code93Standard
• DatabarExpanded
• DatabarExpandedStacked
• DatabarLimited
• DatabarOmniDirectional
• DatabarStacked
• DatabarStackedOmniDirectional
• DatabarTruncated
• DataLogic2of5
• DataMatrix
• DeutschePostIdentcode
• DeutschePostLeitcode
• DotCode
• DutchKIX
• EAN13
• EAN14
• EAN8
• GS1Code128
• GS1DataMatrix
• GS1QR
• IATA2of5
• Interleaved2of5
• ISBN
• ISMN
• ISSN
• ItalianPost25
• ITF14
• ITF6
• MacroPdf417
• Mailmark
• Matrix2of5
• MaxiCode
• MicroPdf417
• MSI
• OneCode
• OPC
• PatchCode
• Pdf417
• Pharmacode
• Planet
• Postnet
• PZN
• QR code
• RM4SCC
• SCC14
• SSCC18
• Standard2of5
• SwissPostParcel
• SwissQR
• UPCA
• UPCE
• VIN
• MailMark

Declaration

This element is declared as an object with "element_type": "Barcode" property.

A string encoded as a barcode is specified in the value property.

{
	"element_type": "Barcode",
	"value": "https://products.aspose.com/omr/"
}

Required properties

Name	Type	Description
element_type	string	Must be "Barcode" (case-insensitive).
value	string	A string encoded as a barcode.

Optional properties

Name	Type	Default value	Description
name	string	n/a	Used as an element’s identifier in recognition results and as a reminder of the element’s purpose in template source; for example, “Web site”. This text is not displayed on the form.
barcode_type	string	“QR”	Type of the barcode. Can take one of the following values: "AustralianPosteParcel", "AustraliaPost", "Aztec", "Codabar", "CodablockF", "Code11", "Code128", "Code16K", "Code32", "Code39Extended", "Code39Standard", "Code93Extended", "Code93Standard", "DatabarExpanded", "DatabarExpandedStacked", "DatabarLimited", "DatabarOmniDirectional", "DatabarStacked", "DatabarStackedOmniDirectional", "DatabarTruncated", "DataLogic2of5", "DataMatrix", "DeutschePostIdentcode", "DeutschePostLeitcode", "DotCode", "DutchKIX", "EAN13", "EAN14", "EAN8", "GS1Code128", "GS1DataMatrix", "GS1QR", "IATA2of5", "Interleaved2of5", "ISBN", "ISMN", "ISSN", "ItalianPost25", "ITF14", "ITF6", "MacroPdf417", "Mailmark", "Matrix2of5", "MaxiCode", "MicroPdf417", "MSI", "OneCode", "OPC", "PatchCode", "Pdf417", "Pharmacode", "Planet", "Postnet", "PZN", "QR", "RM4SCC", "SCC14", "SSCC18", "Standard2of5", "SwissPostParcel", "SwissQR", "UPCA", "UPCE", "VIN".
qr_version	integer	Automatic	QR Code version. Only applicable when barcode_type is "QR".
codetext	Boolean	false	Add a string from the value property below the barcode image.
align	string	“center”	Horizontal alignment of the barcode image: "left", "center" or "right".
height	integer	Automatic	Barcode height, in pixels. The width is adjusted automatically.
x	integer	n/a	Set the absolute position of the barcode relative to the left edge of the page. Overrides the value of align property.
y	integer	n/a	Set the absolute position of the barcode relative to the top edge of the page.

Allowed child elements

None.

Example

{
	"element_type": "Template",
	"children": [
		{
			"element_type": "Page",
			"children": [
				{
					"element_type": "Container",
					"name": "Three-column layout",
					"columns_count": 3,
					"children": [
						{
							"element_type": "Block",
							"column": 1,
							"children": [
								{
									"element_type": "Barcode",
									"value": "Code39",
									"barcode_type": "code39standard",
									"align": "left",
									"height": 150
								}
							]
						},
						{
							"element_type": "Block",
							"column": 2,
							"children": [
								{
									"element_type": "Barcode",
									"value": "https://products.aspose.com/omr/",
									"height": 300
								}
							]
						},
						{
							"element_type": "Block",
							"column": 3,
							"children": [
								{
									"element_type": "Barcode",
									"value": "PDF417 Barcode",
									"barcode_type": "PDF417",
									"codetext": true,
									"height": 300
								}
							]
						}
					]
				}
			]
		}
	]
}