.NET Framework
PDFCreator Free, Professional and Terminal Server
PDFCreator 4.x.x: .NET Framework 4.7.2 or higher
PDFCreator 3.x.x: .NET Framework 4.5.1 or higher
PDFCreator 2.x.x: .NET Framework 4.0 Client Profile or higher
PDFCreator Server
PDFCreator Server 1.x.x: .NET Framework 4.0 Client Profile or higher
PDFCreator Server 2.x.x: .NET Framework 4.5.1 or higher
Determine which .NET Framework versions are installed: https://docs.microsoft.com/de-de/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed