How to preserve the aspect ratio of the image in PdfGrid

//Creates a new PDF document.
PdfDocument doc = new PdfDocument();
 
//Adds a page.
PdfPage page = doc.Pages.Add();
 
//Creates a PdfGrid.
PdfGrid pdfGrid = new PdfGrid();
 
//Creates a DataTable.
DataTable dataTable = new DataTable();
 
//Adds columns to the DataTable.
dataTable.Columns.Add("ID");
 
dataTable.Columns.Add("Name");
 
//Adds rows to the DataTable.
 dataTable.Rows.Add(new object[] { " ", "Clay" });
 
dataTable.Rows.Add(new object[] { "E02", "Thomas" });
 
//Assigns data source.
pdfGrid.DataSource = dataTable;
 
//Gets the Image
PdfBitmap pBmp = new PdfBitmap(@"..\..\Data\logo.png");
 
pdfGrid.Rows[0].Cells[0].Style.BackgroundImage = pBmp;
 
//Fit the image inorder to preserve the aspect ratio.
pdfGrid.Rows[0].Cells[0].ImagePosition = PdfGridImagePosition.Fit;
 
   // pdfGrid.Rows[0].Cells[0].ImagePosition = PdfGridImagePosition.Center;
      // pdfGrid.Rows[0].Cells[0].ImagePosition = PdfGridImagePosition.Stretch;
   // pdfGrid.Rows[0].Cells[0].ImagePosition = PdfGridImagePosition.Tile
 
//Draws grid to the page of PDF document.
pdfGrid.Draw(page, new PointF(10, 10));
 
//Saves the document and dispose it
doc.Save("Output.pdf");
doc.Close(true);