couple of questions about priniting in C#

hello all .
i was asked to make a program which takes the forms picture and then prints it. the form can be of any size and also there must be two modes for printing , a batch print option and a single printing option .

printing the form was easy but im stuck at the printing section .
my problems are :
1.i dont know how i can change the size of the card when printing.!

2.i have no idea how i can have a batch printing without user interference!

thank you all in advance

any help? :(

ok i have these functions for printing procedures :

Code:

---

protected void btnPrint_Click(object sender, EventArgs e)
        {
            PaperSize cardsize = new PaperSize("test", this.Width, this.Height);
            PrintDocument pd = new PrintDocument();
            pd.PrinterSettings.Duplex = Duplex.Horizontal;
            PageSettings psetting = new PageSettings();
            psetting.PaperSize = cardsize;
            pd.DefaultPageSettings = psetting;

            pd.PrintPage += new PrintPageEventHandler(PrintImage);
            pd.Print();
        }

---

Code:

---

        void PrintImage(object o, PrintPageEventArgs e)
        {
            int x = SystemInformation.WorkingArea.X;
            int y = SystemInformation.WorkingArea.Y;
            int width = this.Width;
            int height = this.Height;

            Rectangle bounds = new Rectangle(x, y, width, height);

            Bitmap img = new Bitmap(width, height);

            this.DrawToBitmap(img, bounds);
            Point p = new Point(100, 100);
            e.Graphics.DrawImage(img, p);
        }

---

i call this print function in a timer tick event , inwhich the forms information is updated each X seconds and when updated , it is printed and so on...

as you see i've tried to first resize the print page to match with the form size , but no luck!
i have no idea how im supposed to do that! searched couple of articles on google on printing! but nothing useful ! :(
and the other problem is that , when printing , a window is shown to the user to choose a name and then save the print file ( i currently have no printer installed , so there is only a microsoft default printer ! - will this window just stop showing when an actual printer is installed ? )

any help ?