To use IronPDF in a live production environment without watermarks, you must apply a valid license key at the start of your application. While IronPDF is free for local development and testing, a license is required for deployment. How to Get a License Key You can obtain a license key through the following options:
Validation: You can check the status of your license key programmatically using the IsLicensed property to ensure it is active and correctly applied. ironpdf license key
Key Function: Adding a valid key removes the "Powered by Iron Software" watermark and unlocks advanced features like digital signatures and high-speed Chrome rendering. How to Apply the Key To use IronPDF in a live production environment
// Apply license key
string licenseKey = config["IronPdf:LicenseKey"];
if (string.IsNullOrEmpty(licenseKey))
Here are the most useful features for managing IronPDF license keys: You’ll see: “This is a trial version of IronPDF