Document doc = new Document("f://333.doc");ImageSaveOptions iso = new ImageSaveOptions(SaveFormat.Jpeg);iso.Resolution = 128;iso.PRettyFormat = true;iso.UseAntiAliasing = true; for (int i = 0; i < doc.PageCount; i++){      iso.PageIndex = i;      doc.Save("D:/test/test" + i + ".jpg", iso);}