IronPDF is not free for commercial use. You must purchase a license for production deployments.
Covers one developer for internal projects and website deployments. ironpdf license key
Your 30-day trial key has passed its expiration date. IronPDF is not free for commercial use
The cleanest approach is storing your key in your configuration files. This prevents hardcoding sensitive keys into your source control. "IronPdf.LicenseKey": "IRONPDF-YOUR-LICENSE-KEY-HERE" Use code with caution. For .NET Framework ( web.config ): ironpdf license key
Trial versions place a "PRO" watermark on every page generated.
When you renew or upgrade (e.g., from Lite to Professional):
The same two methods are available.