public ActionResult <Response> CreateSampleBookmarks([FromBody] Request request)
        {
            try
            {
                using (APToolkitNET.Toolkit toolkit = new APToolkitNET.Toolkit())
                {
                    //Set page dimensions
                    toolkit.OutputPageHeight = 792.0f;
                    toolkit.OutputPageWidth  = 612.0f;

                    //Create new file
                    int result = toolkit.OpenOutputFile(FileName: $"{serverDirectory}SampleBookmarks.pdf");
                    if (result != 0)
                    {
                        throw new Exception($"Could not create destination file: SampleBookmarks.pdf");
                    }

                    // Open Source File
                    result = toolkit.OpenInputFile($"{ serverDirectory}{request.filename}.pdf");
                    if (result != 0)
                    {
                        throw new Exception($"Could not Open file: {request.filename}");
                    }

                    // Add new page to output
                    toolkit.NewPage();
                    toolkit.SetFont(FontName: "Arial", FontSize: 20);
                    toolkit.PrintText(X: 72.0f, Y: 720.0f, Text: "Table of Contents");
                    toolkit.AddInternalLink(1, 72, 720, 72, 720, 5, 72, 720, 4);

                    //toolkit.AddInternalLinkBookmark("Section 1", 2, 0, 0);

                    APToolkitNET.BookmarkManager bookmarkManager = toolkit.GetBookmarkManager();
                    bookmarkManager.CopyBookmarks = true;
                    APToolkitNET.Bookmark root = bookmarkManager.MakeRoot("Table of Contents", "red", APToolkitNET.FontStyle.Bold);

                    var section1 = bookmarkManager.AddChild(root, "Section 1");
                    section1.SetInternalLink(1, 0, 0);
                    var section11 = bookmarkManager.AddChild(section1, "Section 1.1");
                    section11.SetInternalLink(2, 0, 0);
                    var section111 = bookmarkManager.AddChild(section1, "Section 1.1.1");
                    section11.SetInternalLink(3, 0, 0);

                    var section2 = bookmarkManager.AddChild(root, "Section 2");
                    section2.SetInternalLink(4, 0, 0);
                    var section21 = bookmarkManager.AddChild(section2, "Section 2.1");
                    section21.SetInternalLink(5, 0, 0);
                    var section211 = bookmarkManager.AddChild(section2, "Section 2.1.1");
                    section211.SetInternalLink(6, 0, 0);

                    // Close the new file to complete PDF creation
                    toolkit.CopyForm(0, 0);
                    toolkit.CloseInputFile();
                    toolkit.CloseOutputFile();

                    return(new Response()
                    {
                        FileContent = string.Empty,
                        FileName = "SampleBookmarks.pdf",
                        Message = "File SampleBookmarks.pdf created successfully",
                        Success = true
                    });
                }
            }
            catch (Exception ex)
            {
                return(new Response()
                {
                    FileContent = string.Empty,
                    FileName = "",
                    Message = "Could not Create Sample Bookmarks " + ex.Message,
                    Success = false
                });
            }
        }