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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:
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.
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.
A string encoded as a barcode is provided in value attribute. For example: value=https://products.aspose.com/omr/.
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 |
None.
?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

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