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

Syntax

The element is declared with ?barcode=[name] statement. This statement must be placed on a separate line.

name property is 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”. The name is not displayed on the form.

Attributes

An attribute is written as [attribute_name]=[value]. Each attribute must be placed on a new line immediately after the opening ?barcode= statement or another attribute, and must begin with a tab character.

Required

A string encoded as a barcode is provided in value attribute. For example: value=https://products.aspose.com/omr/.

Optional

The barcode element can be customized by adding optional attributes to it.

Attribute	Default value	Description	Usage example
barcode_type	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.	barcode_type=PDF417
qr_version	Automatic	QR Code version. Only applicable when barcode_type is QR.	qr_version=40
codetext	false	Add a string encoded as a barcode below the barcode image.	codetext=true
align	center	Horizontal alignment of the barcode image: left, center or right.	align=right
height	Automatic	Barcode height, in pixels. The width is adjusted automatically.	height=300
x	n/a	Set the absolute position of the barcode relative to the left edge of the page. Overrides the value of align attribute.	x=300
y	n/a	Set the absolute position of the barcode relative to the top edge of the page.	y=500
rotation_angle	n/a	Rotate the element by the specified angle (in degrees). Negative angle rotates the element counter-clockwise, positive angle rotates the element clockwise.	rotation_angle=-90

Allowed child elements

None.

Example

?container=Example
	columns_count=3
?block=Column 1
	column=1
?barcode=Code 39 barcode
	value=Code39
	barcode_type=code39standard
	align=left
	height=150
&block
?block=Column 2
	column=2
?barcode=QR code
	value=https://products.aspose.com/omr/
	height=300
&block
?block=Column 3
	column=3
?barcode=stacked linear barcode
	value=PDF417 Barcode
	barcode_type=PDF417
	codetext=true
	height=300
&block
&container