The evaluation mode of Aspose.BarCode for Java allows generating barcode images without restrictions. However, a watermark will be displayed on the resulting barcode image (words “Aspose”). The unlicensed version can be used to read barcodes of all supported types. Please note that only Code 39 can be decoded without limitations; as a result of reading barcodes corresponding to other types, 30% of decoded text will be masked with " * “. All other actions with barcodes using Aspose.BarCode for Java need setting a license. After purchasing a license, you will get access to the whole functionality of the library and the ability to perform barcode generation and reading without limitations and watermark placement.

How to Obtain License

If you want to try the full version of Aspose.BarCode for Java, you can try a temporary license that is valid for 30 days. Please read How to get a Temporary License? for more information. To use the library without limitations, purchasing a commercial license is necessary. You can get all information about pricing and conditions here.

Each Aspose license enables a one-year subscription with free upgrades to any new releases or fixes that are published during this period. Technical support is provided for free unlimitedly both to licensed and evaluation users.

How to Install License

The license is a plain-text XML file that includes details such as the product name, the number of developers it is licensed for, subscription expiry date, and others. The license file is signed digitally, so it must not be modified in any way. Adding even an extra line break into the license file will result in invalidating the license. You need to activate the license to enable the unlimited use of library functions. You only have to enable the license once per application (or process).

The license can be loaded from a stream or file using the following locations:

  1. Explicit path
  2. Folder that comprises Aspose.BarCode.jar

You need to call the setLicense method of class License to apply the license to the component. The easiest way to activate the license is to place the license file into the same folder as Aspose.BarCode.jar and specify the license file name without a path, as shown in the following example.

Configure License From File

In this example, Aspose.BarCode will attempt to find the license file in the folder that contains JARs of your application.

Configure License From Stream

In this example, the license is initialized from a stream.

Configure Metered Key

Aspose.BarCode for Java allows developers to apply metered keys. It is a new licensing mechanism that can be applied along with the existing licensing method. Those customers who want to be billed based on the usage of API features can apply metered licensing. For more details, please refer to Metered Licensing FAQ.

Class Metered has been introduced to apply the metered key. The sample code snippet demonstrating how to set metered public and private keys is provided below.