How can I use a C# NuGet library in a C++ project?

Question

I want to use a C# NuGet library in a C++ project. I'm assuming I'd need to write some sort of wrapper in C# to be able to use the DLL in my C++ project, but I have no idea how this works and how to include this DLL in my C++ project.

I've created a C# library project so far and written this code, which uses the Spire.PDF library so far. The reason why I'm doing it in C# is because it is free for C#.

using Spire.Pdf.Texts;
using Spire.Pdf;

namespace SpirePDFLib
{
    public class SpirePDFLib
    {
        public static void ReplaceInPDF()
        {
            // Create an object of the PdfDocument class
            PdfDocument doc = new PdfDocument();

            // Load a PDF file
            doc.LoadFromFile("xyz.pdf");

            // Iterate through the pages in the document
            for (int i = 0; i < doc.Pages.Count; i++)
            {
                // Get the current page
                PdfPageBase page = doc.Pages[i];

                // Create an object of the PdfTextReplace class and pass the page to the constructor of the class as a parameter
                PdfTextReplacer replacer = new PdfTextReplacer(page);

                // Replace all instances of a specific text with new text
                replacer.ReplaceAllText("STATEMENT", "Statement of: user");

                // Replace all instances of a specific text with new text and set text color
                //replacer.ReplaceAllText("Adobe Acrobat", "PDF Editor", Color.Yellow);
            }

            // Save the resulting file
            doc.SaveToFile("ReplaceAllFoundText1.pdf");
            doc.Close();
        }
    }
}

I think I need to use the DLL generated by building this code and include it in C++, but I don't know how. Any help would be really appreciated. Thank you!