Getting the Evaluation Watermark in Presentations Even though We Have the License?

We found an issue. We tried to upgrade our project to the latest Aspose.Slides assembly i.e. “23.10.0” from “21.11.0”. The license we have is valid till next year.
FYI,

<SubscriptionExpiry>20221124</SubscriptionExpiry>

But when we merge the PowerPoint files using this trial version it is giving us “evaluation watermark”.

The license file’s build action is set to “Embedded Resource” and copy to output directory is set to “Always”.

We are setting the license file in our Main() program.cs as below.

static class Program
{
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        SetAsposeSlidesLicense();
        Application.Run(new Form1());
    }

    private static void SetAsposeSlidesLicense()
    {
        try
        {
            // VVIMP: Aspose library can find the license file if it is included as a part of Paris.Project(Paris Assembly) with BuildAction= 'Embedded Resource' and CopyToOutputDirectory='Always',
            // No need to map it through AppSettings.config file, since very difficult to add the key in individual config file for each server/client.
            Aspose.Slides.License license = new Aspose.Slides.License();
            license.SetLicense("Aspose.Slides.NET.lic");
        }
        catch (Exception ex)
        {
            ExceptionLog.LogException(ex, string.Format("Error Occured while applying Aspose.Slides License! Details:{0}", ex.Message));
        }
    }
}

Let us know if you need our sample project or license information to analyze further?

FYI, it is licensed under “Investment Metrics”.

@PrathapSV,
Thank you for contacting support.

Please note that your license expires on 2022-11-24. Therefore, the latest version of Aspose.Slides that your license allows you to use is version 22.11.

My colleagues from Aspose.Purchase forum can help you renew your license to use the latest version of Aspose.Slides.

Thank you for the help, we were able to renew our license.

We have another concern regarding our existing licenses in production.

Our current license is expiring on Non 24 2023 and we are using the version “23.11”. I believe our production application should function without any issues even after the license is expired. Can you please confirm this ?

@PrathapSV

Yes, you should not face any issue while you keep using the existing license with 23.11 version of the API. The API version release date should be less than the subscription expiry date of your license file and if it is, it will keep working with it for as long as you decide.