private void HeadersAndFooters( string file )
    {
      using( var document = DocX.Load( file ) )
      {
        // Generate the Headers/Footers for this document
        document.AddHeaders();
        document.AddFooters();

        // Indicate that the first page will have independent Headers/Footers
        document.DifferentFirstPage = true;

        // Indicate that even and odd page will have separate Headers/Footers
        document.DifferentOddAndEvenPages = true;

        // Insert a Paragraph in the Headers/Footers for the first page
        document.Headers.First.InsertParagraph( "This is the " ).Append( "first" ).Bold().Append( " page header" );
        document.Footers.First.InsertParagraph( "This is the " ).Append( "first" ).Bold().Append( " page footer" );

        // Insert a Paragraph in the Headers/Footers for the even pages
        document.Headers.Even.InsertParagraph( "This is an " ).Append( "even" ).Bold().Append( " page header" );
        document.Footers.Even.InsertParagraph( "This is an " ).Append( "even" ).Bold().Append( " page footer" );

        // Insert a Paragraph in the Headers/Footers for the odd pages
        document.Headers.Odd.InsertParagraph( "This is an " ).Append( "odd" ).Bold().Append( " page header" );
        document.Footers.Odd.InsertParagraph( "This is an " ).Append( "odd" ).Bold().Append( " page footer" );

        // Save the changes to the document
        document.Save();
      }
    }