Dodanie daty do zdjęcia z EXIF

 {
            OpenFileDialog otworz = new OpenFileDialog();
            otworz.InitialDirectory = "c:\\";
            otworz.Multiselect = true;
            otworz.Filter = "Wszystkie pliki (*.*)|*.*|Pliki JPEG (*.jpeg)|*.jpeg| Pliki JPG (*.jpg)|*.jpg";

            if (otworz.ShowDialog() == DialogResult.OK)
            {
                StringBuilder sb = new StringBuilder();
                foreach (string cell in otworz.FileNames)
                {
                    sb.AppendLine(cell.ToString());                   
                }
                MessageBox.Show(sb.ToString());

                foreach (string plik in otworz.FileNames)
                {
                    FileInfo info = new FileInfo(plik);
                    DateTime create = info.LastWriteTime;
                    //MessageBox.Show(create.ToString(), "Data utowrzenia zdjęcia", MessageBoxButtons.OK);
                    Bitmap nowa_bitmapa = new Bitmap(plik);
                    Graphics dopisz = Graphics.FromImage(nowa_bitmapa);
                    dopisz.DrawString(create.ToString(), new Font("Times New Roman", 72), Brushes.White, new PointF(0, 0));
                    pictureBox1.Image = (Image)nowa_bitmapa;
                    
                    SaveFileDialog zapisz = new SaveFileDialog();
                    zapisz.InitialDirectory = "c:\\";
                    zapisz.Filter = "Pliki JPEG (*.jpeg)|*.jpeg| Pliki JPG (*.jpg)|*.jpg";
                    if (zapisz.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                    {
                        string ext = System.IO.Path.GetExtension(zapisz.FileName);
                        nowa_bitmapa.Save(zapisz.FileName);
                        //pictureBox1.Image.Save(zapisz.FileName);
                    } 
                }
            }
        } 

 string ImagesPath = @"D:\Test"; //uzyj FolderBrowserDialog albo cos podobnego..

            if (Directory.Exists(ImagesPath))
            {
                Directory.CreateDirectory(Path.Combine(ImagesPath, "WithDate"));

                List<string> Images = Directory.EnumerateFiles(ImagesPath, "*.png").ToList();
                foreach (string ImagePath in Images)
                    if (File.Exists(ImagePath))
                        using (Bitmap bmp = new Bitmap(ImagePath))
                        {
                            using (Graphics graphics = Graphics.FromImage(bmp))
                            {
                                graphics.DrawString(DateTime.Now.ToShortDateString(), new Font("Times New Roman", 20), Brushes.Red, new PointF(bmp.Size.Width - 200, bmp.Size.Height - 50)); //zamien date
                            }

                            bmp.Save(string.Concat(Path.Combine(ImagesPath, "WithDate", Path.GetFileName(ImagePath))));
                        }
            }