How can I print multiple lines of text in image format

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C#

WPF

in my billing application, I can print the bill in pdf format but I need to convert the data of the bill to be printed in image format All the data are added through string builder how do i do this

What I have tried:

>var printText = new PrintText(sb.ToString(), new Font(System.Drawing.FontFamily.GenericMonospace, 9, System.Drawing.FontStyle.Bold));
                    Graphics graphics = e.Graphics;
                    int startX = 0;
                    int startY = 0;
                    int Offset = 20;

graphics.DrawString(printText.Text,newFont(System.Drawing.FontFamily.GenericMonospace, 9, System.Drawing.FontStyle.Bold),
        new SolidBrush(System.Drawing.Color.Black), startX, startY + Offset);
                    Offset = Offset + 20