Add reference to MS.Word
private Microsoft.Office.Interop.Word.ApplicationClass MSdoc;
object Unknown = Type.Missing;
private void word2PDF(object Source, object Target)
{
if (MSdoc == null)MSdoc = new Microsoft.Office.Interop.Word.ApplicationClass();
try
{
MSdoc.Visible = false;
MSdoc.Documents.Open(ref Source, ref Unknown,
ref Unknown, ref Unknown, ref Unknown,
ref Unknown, ref Unknown, ref Unknown,
ref Unknown, ref Unknown, ref Unknown,
ref Unknown, ref Unknown, ref Unknown, ref Unknown, ref Unknown);
MSdoc.Application.Visible = false;
MSdoc.WindowState = Microsoft.Office.Interop.Word.WdWindowState.wdWindowStateMinimize;
object format = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatPDF;
MSdoc.ActiveDocument.SaveAs(ref Target, ref format,
ref Unknown, ref Unknown, ref Unknown,
ref Unknown, ref Unknown, ref Unknown,
ref Unknown, ref Unknown, ref Unknown,
ref Unknown, ref Unknown, ref Unknown,
ref Unknown, ref Unknown);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
finally
{
if (MSdoc != null)
{
MSdoc.Documents.Close(ref Unknown, ref Unknown, ref Unknown);
}
WordDoc.Quit(ref Unknown, ref Unknown, ref Unknown);
}
}
MS word2007 with (Primary Interoperability assembly will be installed by default).