Combine two (or more) PDF's

Question

Background: I need to provide a weekly report package for my sales staff. This package contains several (5-10) crystal reports.

Problem:

Answer 1

Combining two byte[] using iTextSharp up to version 5.x:

internal static MemoryStream mergePdfs(byte[] pdf1, byte[] pdf2)
{
    MemoryStream outStream = new MemoryStream();
    using (Document document = new Document())
    using (PdfCopy copy = new PdfCopy(document, outStream))
    {
        document.Open();
        copy.AddDocument(new PdfReader(pdf1));
        copy.AddDocument(new PdfReader(pdf2));
    }
    return outStream;
}

Instead of the byte[]'s it's possible to pass also Stream's