Using iTextSharp,you can do it.It can be download from internet and it is free.
Please, find the code below,
public void ExportToPdf(DataTable dt,string strFilePath)
{
Document document = new Document();
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(strFilePath, FileMode.Create));
document.Open();
iTextSharp.text.Font font5 = iTextSharp.text.FontFactory.GetFont(FontFactory.HELVETICA, 5);
PdfPTable table = new PdfPTable(dt.Columns.Count);
PdfPRow row = null;
float[] widths = new float[dt.Columns.Count];
for (int i = 0; i < dt.Columns.Count; i++)
widths[i] = 4f;
table.SetWidths(widths);
table.WidthPercentage = 100;
int iCol = 0;
string colname = "";
PdfPCell cell = new PdfPCell(new Phrase("Products"));
cell.Colspan = dt.Columns.Count;
foreach (DataColumn c in dt.Columns)
{
table.AddCell(new Phrase(c.ColumnName, font5));
}
foreach (DataRow r in dt.Rows)
{
if (dt.Rows.Count > 0)
{
for (int h = 0; h < dt.Columns.Count; h++)
{
table.AddCell(new Phrase(r[h].ToString(), font5));
}
}
}
document.Add(table);
document.Close();
}
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