Comments by kumarbl (Top 2 by date)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Office.Interop.Word;

namespace SaveWordAsPDF
{
class Program
{
static void Main(string[] args)
{
object visible = true;
object readOnly = true;
object sourceFilename;
string targetFilename;
Application wordApp = new Application();
sourceFilename = "D:\\dartword\\MyDocument2.docx";
targetFilename = "D:\\dartword\\MyDocument.pdf";
Document doc = wordApp.Documents.Open(ref sourceFilename, ref missing, ref readOnly, ref missing, ref missing, ref missing, ref missing,
ref missing, ref missing, ref missing, ref missing, ref visible, ref missing, ref missing,
ref missing, ref missing);

doc.ExportAsFixedFormat(targetFilename, WdExportFormat.wdExportFormatPDF, false, WdExportOptimizeFor.wdExportOptimizeForOnScreen,
WdExportRange.wdExportAllDocument, 0, 0, WdExportItem.wdExportDocumentContent, false, false,
WdExportCreateBookmarks.wdExportCreateNoBookmarks, false, false, false, ref missing);

object saveChanges = false;
doc.Close(ref saveChanges, ref missing, ref missing);
wordApp.Quit(ref saveChanges, ref missing, ref missing);
}

static object missing = Type.Missing;
}
}