Convert PDF to PS Using C#. For more information, please follow link: https://kb.groupdocs.com/conversion/net/convert-pdf-to-ps-using-csharp/

Convert PDF to PS Using C#.cs

using GroupDocs.Conversion;

namespace ConvertPDFtoPSUsingCSharp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Set License to avoid the limitations of Conversion library
            License lic = new License();
            lic.SetLicense(@"GroupDocs.Conversion.lic");

            // Load the source PDF file
            using (var converter = new Converter("input.pdf"))
            {
                var options = converter.GetPossibleConversions()["ps"].ConvertOptions;
                
                // Convert to PS format
                converter.Convert("converted.ps", options);
            }
        }
    }
}