Код: Выделить всё
Microsoft.Office.Interop.Word.ApplicationClass msDoc = new Microsoft.Office.Interop.Word.ApplicationClass();
msDoc.Visible = false;
msDoc.Application.Visible = false;
msDoc.Documents.Open(ref docPath, ref UNKNOWN,
ref READ_ONLY, 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.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);
Подробнее здесь: https://stackoverflow.com/questions/508 ... d-dialog-u