Draw Superscript and Subscript Text in PDF in C#

using Spire.Pdf;
using Spire.Pdf.Graphics;
using System.Drawing;


namespace Superscript
{
    class Program
    {
        static void Main(string[] args)
        {
            //Instantiate a PdfDocument instance
            PdfDocument pdf = new PdfDocument();

            //Add a page
            PdfPageBase page = pdf.Pages.Add();

            //Set initial (x, y) coordinate
            float x = 0;
            float y = 50;

            //Set font
            PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial Unicode MS", 11f), true);

            //Draw string
            string text = "Sample Text";
            page.Canvas.DrawString(text, font, PdfBrushes.Black, new PointF(x, y));

            //Measure the string
            SizeF size = font.MeasureString(text);

            //Set the x coordinate of the superscript text
            x += size.Width;

            //Instantiate a PdfStringFormat instance
            PdfStringFormat format = new PdfStringFormat();
            //Set format as superscript
            format.SubSuperScript = PdfSubSuperScript.SuperScript;

            //Draw superscript text with format
            text = "Superscript";
            page.Canvas.DrawString(text, font, PdfBrushes.Black, new PointF(x, y), format);

            //Save the document
            pdf.SaveToFile("SuperScript.pdf");
        }
    }
}

using Spire.Pdf;
using Spire.Pdf.Graphics;
using System.Drawing;


namespace Subscript
{
    class Program
    {
        static void Main(string[] args)
        {
            //Instantiate a PdfDocument instance
            PdfDocument pdf = new PdfDocument();

            //Add a page
            PdfPageBase page = pdf.Pages.Add();

            //Set initial (x, y) coordinate
            float x = 0;
            float y = 50;

            //Set font
            PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial Unicode MS", 11f), true);

            //Draw string
            string text = "Sample Text";
            page.Canvas.DrawString(text, font, PdfBrushes.Black, new PointF(x, y));

            //Measure the string
            SizeF size = font.MeasureString(text);

            //Set the x coordinate of the subscript text
            x += size.Width;

            //Instantiate a PdfStringFormat instance
            PdfStringFormat format = new PdfStringFormat();
            //Set format as subscript
            format.SubSuperScript = PdfSubSuperScript.SubScript;

            //Draw subscript
            text = "Subscript";
            page.Canvas.DrawString(text, font, PdfBrushes.Black, new PointF(x, y), format);

            //Save the document
            pdf.SaveToFile("SubScript.pdf");
        }
    }
}