Document .Net

using System;
using System.IO;
using SautinSoft.Document;

namespace Sample
{
    class Sample
    {
        static void Main(string[] args)
        {
            MergeTwoDocuments();
        }
        public static void MergeTwoDocuments()
        {
            string singleFilePath = "Single.docx";
            string[] supportedFiles = new string[] { @"..\..\..\example.docx", @"..\..\..\example.pdf" };
            DocumentCore dcSingle = new DocumentCore();
            foreach (string file in supportedFiles)
            {
                DocumentCore dc = DocumentCore.Load(file);
                Console.WriteLine("Adding: {0}...", Path.GetFileName(file));
                ImportSession session = new ImportSession(dc, dcSingle, StyleImportingMode.KeepSourceFormatting);
                foreach (Section sourceSection in dc.Sections)
                {
                            Section importedSection = dcSingle.Import<Section>(sourceSection, true, session);
                    if (dc.Sections.IndexOf(sourceSection) == 0)
                        importedSection.PageSetup.SectionStart = SectionStart.NewPage;
                    dcSingle.Sections.Add(importedSection);
                }
            }
            dcSingle.Save(singleFilePath);
           System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(singleFilePath) { UseShellExecute = true });
        }
    }
}