Html to PDF conversion shows license message

[Erick]

Hello,

I'm successfully converting an HTML document to PDF. I'm sure I have a valid license and still the PDF shows the message: Created with a trial version of Syncfusion PDF Library". The version I'm using is 24.2.9. It was working in a previous version but I don't remember the number.

Could you please help?

Thanks,

Erick

[Erick]

Another comment. It works on a dotnet worker service but doesn't work on an API application. I'm placing the Syncfusion.Licensing.SyncfusionLicenseProvider in Program.cs after 

var builder = WebApplication.CreateBuilder(args);

and before

var app = builder.Build();

Thanks,

Erick

[Erick]

I found the problema. There are several projects in my solution and one of them had missing the Syncfusion libraries in the csproj file.

Thanks,

Erick

[Prashanth Sundhar]

Hi Erick,

We suspect that you have not registered your license key before initialization of syncfusion control in the project or the Syncfusion.Licensing.dll is not referred properly with correct version.

Syncfusion license keys are version and platform-specific and the generated license key is just a string that needs to be registered before any Syncfusion control is initiated.

If you are using any EJ2 JavaScript files, please follow the procedures below to generate and register the license key.

We have introduced license key validation for Essential JS2 platforms from the 2022 Volume 1 release. This licensing key validation will enforce the developer to register a valid licensing key in an application while referring to any of the latest packages, either from npm or CDN.

Refer to the following blog for more information,

https://www.syncfusion.com/blogs/post/introducing-license-key-validation-for-the-essential-js-2-platforms.aspx

To know about registering the license key,
https://ej2.syncfusion.com/aspnetcore/documentation/licensing/how-to-register-in-an-application

Note: If you are using any template file for generating the PDF document, please ensure that the original template file doesn’t has any license trial warning.

Find the below knowledge base article to know about which version license key should use in the application,

https://www.syncfusion.com/kb/8951/which-version-syncfusion-license-key-should-i-use-in-my-application

Sometimes, old Syncfusion packages might be referred from NuGet cache in the projec

So, could you please try cleaning your project, clear the NuGet cache from both “%userprofile%” folder and NuGet installed location, deleting the bin\obj folders and rebuild your application, then check whether it resolves the issue?

If you are facing any licensing warning even after registering the proper license key, refer to the below links to resolve the license warning message.

https://www.syncfusion.com/kb/12756/how-to-resolve-syncfusion-license-popup-message-or-trial-message-warning

If still not resolved,  please share us the following details to investigate issue from our side, 

1. List of Syncfusion NuGet packages\assemblies used and its version,
2. Target Framework and Platform of your application, 
3. License key registered place,
4. License key that you are using.

Regards,

Prashanth S.