Developers can request a 30-day free trial license key directly from the Iron Software website. This trial key unlocks the full functionality of the library and removes the digital watermarks temporarily, allowing you to test the software under real-world deployment conditions. Commercial License Tiers
// Apply the license key before calling any IronPDF methods IronPdf.License.LicenseKey = "IRONPDF-MY-LICENSE-KEY-1EF01"; // Optional: Check if the key is active if (IronPdf.License.IsLicensed) Console.WriteLine("IronPDF is ready for production!"); Use code with caution. Copied to clipboard Using Configuration Files ironpdf license key
The key must be set before any IronPDF functions are called in your code. : IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"; Use code with caution. Copied to clipboard In Configuration Files : appsettings.json : Add a field named "IronPdf.LicenseKey" . Web.config : Add a key to the section. License Tiers and Options Setting License Key in Web.config - IronPDF Developers can request a 30-day free trial license
You have the key. Now, where does it go? You must add the license key to your application's startup routine. Iron Software recommends setting the key once before using any PDF generation methods. Copied to clipboard Using Configuration Files The key
Check your inbox; your unique 30-day trial key will be sent immediately along with installation instructions. 5. Troubleshooting Common License Key Issues
You can also validate a license key string without applying it, using IsValidLicense :