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Fab2ApprovalSystem/PdfGenerator/StandardPdfRenderer.cs

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+using System.IO;
+using iTextSharp.text;
+using iTextSharp.text.html.simpleparser;
+using iTextSharp.text.pdf;
+
+
+namespace Fab2ApprovalSystem.PdfGenerator
+{
+
+
+    /// <summary>
+    /// This class is responsible for rendering a html text string to a PDF document using the html renderer of iTextSharp.
+    /// </summary>
+    public class StandardPdfRenderer
+    {
+        private const int HorizontalMargin = 40;
+        private const int VerticalMargin = 40;
+
+        public byte[] Render(string htmlText, string pageTitle)
+        {
+            byte[] renderedBuffer;
+
+            using (var outputMemoryStream = new MemoryStream())
+            {
+                using (var pdfDocument = new Document(PageSize.A4, HorizontalMargin, HorizontalMargin, VerticalMargin, VerticalMargin))
+                {
+                    PdfWriter pdfWriter = PdfWriter.GetInstance(pdfDocument, outputMemoryStream);
+                    pdfWriter.CloseStream = false;
+                    pdfWriter.PageEvent = new PrintHeaderFooter { Title = pageTitle };
+                    pdfDocument.Open();
+                    using (var htmlViewReader = new StringReader(htmlText))
+                    {
+                        using (var htmlWorker = new HTMLWorker(pdfDocument))
+                        {
+                            htmlWorker.Parse(htmlViewReader);
+                        }
+                    }
+                    
+                }
+                
+                renderedBuffer = new byte[outputMemoryStream.Position];
+                outputMemoryStream.Position = 0;
+                outputMemoryStream.Read(renderedBuffer, 0, renderedBuffer.Length);
+            }
+
+            return renderedBuffer;
+        }
+    }
+}