Merge many Pdf into Single pdf using Append bytes[] using C# or asp.net

[pertain]

Problem:[*]I have byte array in my datatable.[*]each \[code\]byte[]\[/code\] is single pdf file for one order.[*]I just want to all these pdf \[code\]byte[]\[/code\] in a single \[code\]byte[]\[/code\] for single file.I just want to save it to the browser.I can achieve appending the \[code\]byte[]\[/code\], but it will create one \[code\]byte[]\[/code\] data as pdf.the following the sample i did here in console application actually I want in my web application.here is my code:\[code\]public void NewPdf(string[] Pdf){ byte[] newPdf; MemoryStream ms = new MemoryStream(); foreach (var onepdf in Pdf) { newPdf = System.IO.File.ReadAllBytes(onepdf); //newPdf=System.Convert.FromBase64String(onepdf); // int resultPdf = newPdf.Length; // ms.Write(newPdf, 0, newPdf.Length); // var ms = new MemoryStream(new byte[resultPdf], 0, resultPdf, true, true); ms.Write(newPdf, 0, newPdf.Length); //ms.Write(baadF00d, 0, baadF00d.Length); //System.Buffer.BlockCopy(newPdf, 0, resultPdf, 0, newPdf.Length); } byte[] merged = ms.GetBuffer(); // File.WriteAllBytes("testpdf.pdf", merged); PdfReader reader = new PdfReader(merged); int n = reader.NumberOfPages; Document document = new Document(reader.GetPageSizeWithRotation(1)); PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("thugs.pdf", FileMode.Create)); document.Open(); PdfContentByte cb = writer.DirectContent; PdfImportedPage page; int rotation; int i = 0; while (i < n) { i++; document.SetPageSize(reader.GetPageSizeWithRotation(i)); document.NewPage(); page = writer.GetImportedPage(reader, i); rotation = reader.GetPageRotation(i); if (rotation == 90 || rotation == 270) { cb.AddTemplate(page, 0, -1f, 1f, 0, 0, reader.GetPageSizeWithRotation(i).Height); } else { cb.AddTemplate(page, 1f, 0, 0, 1f, 0, 0); } } reader = new PdfReader(merged); // we retrieve the total number of pages n = reader.NumberOfPages; document.Close();}\[/code\]Actually i am trying to do in asp.net mvc2....i can return the \[code\]byte[]\[/code\] in mvc2 \[code\]return File(bytes, mimeType);\[/code\]