Server-Side PDF Export

private void ExportToPdf()
{   
  // create a new PDF document
  PdfDocument doc = new PdfDocument();
  doc.Info.Title = "DayPilot Calendar PDF Export";
  doc.Info.Author = "DayPilot";

  // add a page
  PdfPage page = doc.AddPage();

  // set PDF page properties (size and orientation)
  page.Size = (PageSize) Enum.Parse(typeof (PageSize), ListPageSize.SelectedValue);
  page.Orientation = (PageOrientation)Enum.Parse(typeof(PageOrientation), ListPageOrientation.SelectedValue);

  // create graphics object for PDF page modification
  XGraphics gfx = XGraphics.FromPdfPage(page);

  // write title
  XRect titleRect = new XRect(new XPoint(), gfx.PageSize);
  titleRect.Inflate(-10, -15);
  XFont font = new XFont("Tahoma", 14, XFontStyle.Bold);
  gfx.DrawString("DayPilot Calendar PDF Export", font, XBrushes.DarkGray, titleRect, XStringFormats.TopCenter);

  // create event calendar image
  SetDataSourceAndBind();
  SetExportProperties();
  Bitmap bitmap = DayPilotCalendar1.ExportBitmap();

  // add the image to the PDF page
  XImage image = XImage.FromGdiPlusImage(bitmap);
  XRect imageRect = GetPaddedRectForImage(gfx, image, 10);
  double y = 40;
  imageRect.Y = y;
  gfx.DrawImage(image, imageRect);

  // save the PDF file to MemoryStream
  MemoryStream mem = new MemoryStream();
  doc.Save(mem, false);

  // send the output stream to the browser
  Response.Clear();
  Response.ContentType = "application/pdf";
  Response.AddHeader("content-disposition", "attachment;filename=calendar.pdf");
  mem.WriteTo(Response.OutputStream);
  Response.End();
}

private XRect GetPaddedRectForImage(XGraphics gfx, XImage image, int paddingWidthPct)
{
  double ratio = image.PixelWidth / (double)image.PixelHeight;
  double width = gfx.PageSize.Width;
  double height = width / ratio;

  XRect imageRect = new XRect(0, 0, width, height);
  imageRect.Scale((100 - paddingWidthPct) / 100.0, (100 - paddingWidthPct) / 100.0);

  double x = (gfx.PageSize.Width - imageRect.Width) / 2;
  imageRect.X = x;

  return imageRect;
}

VB

Private Sub ExportToPdf()
  ' create a new PDF document
  Dim doc As New PdfDocument()
  doc.Info.Title = "DayPilot Calendar PDF Export"
  doc.Info.Author = "DayPilot"

  ' add a page
  Dim page_Renamed As PdfPage = doc.AddPage()

  ' set PDF page properties (size and orientation)
  page_Renamed.Size = CType(System.Enum.Parse(GetType(PageSize), ListPageSize.SelectedValue), PageSize)
  page_Renamed.Orientation = CType(System.Enum.Parse(GetType(PageOrientation), ListPageOrientation.SelectedValue), PageOrientation)

  ' create graphics object for PDF page modification
  Dim gfx As XGraphics = XGraphics.FromPdfPage(page_Renamed)

  ' write title
  Dim titleRect As New XRect(New XPoint(), gfx.PageSize)
  titleRect.Inflate(-10, -15)
  Dim font As New XFont("Tahoma", 14, XFontStyle.Bold)
  gfx.DrawString("DayPilot Calendar PDF Export", font, XBrushes.DarkGray, titleRect, XStringFormats.TopCenter)

  ' create event calendar image
  SetDataSourceAndBind()
  SetExportProperties()
  Dim bitmap As Bitmap = DayPilotCalendar1.ExportBitmap()

  ' add the image to the PDF page
  Dim image As XImage = XImage.FromGdiPlusImage(bitmap)
  Dim imageRect As XRect = GetPaddedRectForImage(gfx, image, 10)
  Dim y As Double = 40
  imageRect.Y = y
  gfx.DrawImage(image, imageRect)

  ' save the PDF file to MemoryStream
  Dim mem As New MemoryStream()
  doc.Save(mem, False)

  ' send the output stream to the browser
  Response.Clear()
  Response.ContentType = "application/pdf"
  Response.AddHeader("content-disposition", "attachment;filename=calendar.pdf")
  mem.WriteTo(Response.OutputStream)
  Response.End()
End Sub

Private Function GetPaddedRectForImage(ByVal gfx As XGraphics, ByVal image As XImage, ByVal paddingWidthPct As Integer) As XRect
  Dim ratio As Double = image.PixelWidth / CDbl(image.PixelHeight)
  Dim width As Double = gfx.PageSize.Width
  Dim height As Double = width / ratio

  Dim imageRect As New XRect(0, 0, width, height)
  imageRect.Scale((100 - paddingWidthPct) / 100.0, (100 - paddingWidthPct) / 100.0)

  Dim x As Double = (gfx.PageSize.Width - imageRect.Width) \ 2
  imageRect.X = x

  Return imageRect
End Function