Generate Barcode by Specifying Custom Image Size

Aspose.BarCode for Java automatically adjusts the image size (width and height) according to a generated barcode’s size. But you can also control the image size by specifying the height and width manually.

Programming Sample

Using the BarCodeAttributes.setHeight() and setWidth() methods to set the image height and width. To customize the image size, BarCodeAttributes.setAutoSize() should be set to false. The below example, generates a Code39Standard barcode with customized height and width.

Below is the image that is generated by the sample code:

Custom-size barcode image

Java

 public class MyAttributes

{

    public static BarCodeAttributes Create(String text, String symbology)

    {

        BarCodeAttributes b = new BarCodeAttributes();

        b.setCodeText(text);

        b.setSymbology(symbology);

        // Set auto size false

        b.setAutoSize(false);

        // Set Graphics unit to milimeter

        b.setGraphicsUnit(GraphicsUnit.MILIMETER);

        // Set height

        b.setHeight(50);

        // Set width

        b.setWidth(120);

        return b;

    }

}

JRXML

 <image hAlign="Center">

<reportElement x="0" y="600"  width="500" height="250" />                

<imageExpression class="net.sf.jasperreports.engine.JRRenderable">

   <![CDATA[new com.aspose.barcode.jr.BarCodeRenderer(MyAttributes.Create(

      "12345678", "Code128")

   )]]>

</imageExpression>

</image>