Evaluation Limitations and Licensing Leave feedback

To study the system, you may want quick access to the API. To make this easier, GroupDocs.Metadata provides different plans for purchase and offers a Free Trial and a 30-day Temporary License for evaluation.

Note

GroupDocs.Metadata also works without the license in trial mode with certain limitations

After buying, apply the license file or include it as an embedded resource.

License needs to be set:

• Only once per application domain
• Before using any other GroupDocs.Viewer classes

You can easily download GroupDocs.Metadata for evaluation. The evaluation download is the same as the purchased download. The evaluation version simply becomes licensed when you add a few lines of code to apply the license. You will face following limitations while using the API without the license.  

The license file contains details such as the product name, number of developers it is licensed to, subscription expiry date and so on. It contains the digital signature, so don’t modify the file. Even inadvertent addition of an extra line break into the file will invalidate it. You need to set a license before utilizing GroupDocs.Metadata API if you want to avoid its evaluation limitations. 

The license can be loaded from a file or stream object.

The code below will explain how to apply a  product license.

const licensePath = "path to the .lic file";
const license = new groupdocs.metadata.License()
license.setLicense(licensePath); 

The following code snippet shows how to set a license from a stream:

const fs = require('fs')  
  
const licensePath = "path to the .lic file"
const license = new groupdocs.metadata.License()
const licStream = fs.createReadStream(licensePath)
groupdocs.metadata.License.setLicenseFromStream(license, licStream, err => {
  if (err) {
    console.log(`Set license error: ${err}`)
  } else {
    console.log('License set OK')
  }
})

Note

Calling License.setLicense multiple times is not harmful but simply wastes processor time. It is called once when the application starts.