Applying IronPDF License Key to Projects
The license key is a long string that ends with the license support expiry date. Please ensure this is copied correctly.
IRONPDF-MYLICENSE-KEY-1EF01-EXPIRES.01.JAN.2050Any additional spaces or characters in the license key string will result in the following error:
Unhandled exception. IronSoftware.Exceptions.LicensingException: IronPDF must be licensed for development.The most robust method of applying a license key is directly in your code, before the library is called.
// Set the license key for IronPDF before making any calls to the library.
IronPdf.License.LicenseKey = "IRONPDF-MYLICENSE-KEY-EXPIRES.01.JAN.2050";// Set the license key for IronPDF before making any calls to the library.
IronPdf.License.LicenseKey = "IRONPDF-MYLICENSE-KEY-EXPIRES.01.JAN.2050";' Set the license key for IronPDF before making any calls to the library.
IronPdf.License.LicenseKey = "IRONPDF-MYLICENSE-KEY-EXPIRES.01.JAN.2050"$vbLabelText $csharpLabel
Please noteStarting from IronPdf version 2024.1.20 onwards, users are required to have at least a free trial license key in order to use the IronPDF library in their projects. Absence of a license key in the project will throw the LicensingException error noted above.
For more options, including web.config and appsettings.json, please see the following how-to page for more information: IronPDF License Keys
Chaknith works on IronXL and IronBarcode. He has deep expertise in C# and .NET, helping improve the software and support customers. His insights from user interactions contribute to better products, documentation, and overall experience.
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