How to create a Pdf document
PdfDocumentBuilder pdfBuilder = new PdfDocumentBuilder();
IPdfDocument pdfDoc = pdfBuilder.CreateDocument();
IPdfPage page = pdfDoc.Pages.AddNew();
IPdfBrush brush = PdfBrushFactory.Blue;
IPdfFont font = pdfBuilder.FontFactory.CreateStandardFont(PdfStandardFontFamilies.Helvetica, 24f);
page.Graphics.DrawString("Hello, world!", font, brush, 20, 20);
IPdfPage page2 = pdfDoc.Pages.AddNew();
page2.Graphics.DrawString("This is it.", font, brush, 20, 20);
pdfDoc.Save("HelloWorld.pdf");
pdfDoc.Close();