public static void MergePdf()
{
using (MemoryStream stream = new MemoryStream())
{
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(stream));
iText.Kernel.Utils.PdfMerger merger = new iText.Kernel.Utils.PdfMerger(pdfDoc);
foreach (byte[] pdf in Pdfs)
{
PdfDocument currentPdf = new PdfDocument(new PdfReader(new MemoryStream(pdf)));
merger.Merge(currentPdf, 1, currentPdf.GetNumberOfPages());
currentPdf.Close();
}
merger.Close();
pdfDoc.Close();
FinalMergedPdfURL = Format + Convert.ToBase64String(stream.ToArray());
}
IsSubmitComplete = true;
IsMergeComplete = true;
}