private MemoryStream GeneratePDFStream(Participant participant)
{
var certificateText = CertificateGenerator.GenerateCertificateForParticipant(Certificate, participant);
var rotatedA4 = PageSize.A4.Rotate();
var doc = new Document(rotatedA4);
MemoryStream memoryStream = new MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(doc, memoryStream);
doc.Open();
if (BackgroundImagePath != null)
{
var backgroundImage = Image.GetInstance(BackgroundImagePath);
backgroundImage.Alignment = Image.UNDERLYING;
backgroundImage.ScaleAbsolute(rotatedA4);
backgroundImage.SetAbsolutePosition(0, 0);
doc.Add(backgroundImage);
}
using (var htmlWorker = new HTMLWorker(doc))
{
//HTMLWorker doesn't read a string directly but instead needs a TextReader (which StringReader subclasses)
using (var sr = new StringReader(certificateText))
{
//Parse the HTML
htmlWorker.Parse(sr);
}
}
writer.CloseStream = false;
doc.Close();
memoryStream.Position = 0;
return(memoryStream);
}