If you have implemented the LicenseKey property but still see trial warnings or encounter exceptions, check the following culprits: Key Placement is Too Late

Ensure the assignment happens exactly once during application initialization, isolated from concurrent worker threads. Conclusion

Xceed provides two types of license keys depending on your situation:

Upon purchasing a license from Xceed, you will receive a license key string. This string typically begins with for Xceed Words for .NET. 2. Implement the Code

Failure to set a valid key will result in a runtime exception, halting the execution of your code when attempting to use Xceed functionalities.

For more detailed setup instructions, you can refer to the official Xceed Licensing documentation .

To properly implement the Xceed.Words.NET.Licenser.LicenseKey

No. Most Xceed licenses are perpetual for the software version you purchased, but the included "1-Year Priority Support" is time-limited. After one year, you may need to renew your support subscription to receive updates and technical assistance.

A valid, active (paid) subscription is required for the redistribution of software developed with Xceed Words for .NET, notes ComponentSource . Summary Checklist for xceed.words.net.licenser.licensekey Description Set Early Set the key before any other Xceed component is called. Use Correct Namespace Xceed.Words.NET.Licenser.LicenseKey Verify Key Format Key should start with "WDN..." Check Expiration Ensure your license or trial is still active.

The library may operate in , which often adds "Trial Version" watermarks to generated documents.

Prevents the library from inserting "Created with an evaluation version of Xceed Words for .NET" into your paragraphs.

Ensure that license keys are injected during your CI/CD deployment phases rather than being committed directly to public version control repositories like GitHub. Configuration Loading Example

Console.WriteLine("Xceed Words for .NET is licensed.")

No. Licensing the component in your code is a one-time action at the start of your application's execution. You do not need to install the license key on each client machine.

There are two primary types of keys you can use with this property: xceedsoftware/Xceed-Words-Samples - GitHub

using System; namespace DocumentAutomation class Program static void Main(string[] args) // Set the Xceed Words for .NET license key before calling any DocX functions Xceed.Words.NET.Licenser.LicenseKey = "WDXxx-xxxxx-xxxxx-xxxx"; // Your document manipulation code goes here using (var document = Xceed.Words.NET.DocX.Create("HelloWorld.docx")) document.InsertParagraph("This is a licensed document generation process."); document.Save(); Use code with caution. Trial Mode vs. Registered Mode

To avoid hardcoding sensitive keys in your source control (like GitHub), consider storing the key in an environment variable or a secure configuration file ( appsettings.json ) and retrieving it at runtime.