Then in code, you can load it:
You can also set the key globally in your application startup file (e.g., Program.cs or Global.asax ).
: Once you are ready for production, you can buy a perpetual license from the IronPDF Licensing Page . Keys are typically delivered via email within a few hours of purchase. Applying Your License Key (Code Examples)
// Apply the license key before any other IronPDF calls IronPdf.License.LicenseKey = "IRONPDF-YOUR-LICENSE-KEY-HERE";
This comprehensive guide covers everything developer teams need to know about acquiring, activating, and managing IronPDF license keys across various development environments. 1. What is an IronPDF License Key? ironpdf license key
The most universal and straightforward method is to set the license key in your application’s startup code. This works across all environments—local development, Docker containers, and cloud platforms like Azure or AWS.
If you find that your license key isn't working, check the following:
For CI/CD or cloud deployments:
A license key is a long string of characters that typically ends with a support expiration date. It's crucial to copy it exactly as provided. Any extra spaces or omitted characters can cause activation errors. Then in code, you can load it: You
string licenseKey = ConfigurationManager.AppSettings["IronPdf.LicenseKey"]; IronPdf.License.LicenseKey = licenseKey;
Apply the key at the very beginning of your script.
from ironpdf import ChromePdfRenderer, License, Logger # Set the IronPDF license key License.LicenseKey = "YOUR-LICENSE-KEY" # ... rest of your code Use code with caution. 2. .NET MAUI & Mobile
Then, in your code:
If the watermark persists despite setting the key:
bool isValid = IronPdf.License.IsValidLicense; Console.WriteLine($"License valid: isValid");
IronPDF is a popular .NET library used for generating and manipulating PDF documents. It provides a wide range of features, including creating PDFs from HTML, images, and other file formats, as well as editing and merging existing PDFs. To use IronPDF, developers need to obtain a license key, which grants them access to the library's full functionality. In this paper, we will discuss the IronPDF license key, its types, and how to obtain and use it.