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.

QR code

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`

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

Barcodes example

Answer sheets write_in