Is there a straight forward way to append one PDF doc to another using iTextSharp?

Question

I\'ve scoured the Web looking for examples on how to do this. I\'ve found a few that seem to be a little more involved then they need to be. So my question is, using iTextShar

Answer 1

Ok, It's not straight forward, but it works and is surprisingly fast. (And it uses a 3rd file, no such thing as open and append.) I 'discovered' this in the docs/examples. Here's the code:

private void CombineMultiplePDFs( string[] fileNames, string outFile ) {
    int pageOffset = 0;
    ArrayList master = new ArrayList();
    int f = 0;

    Document document = null;
    PdfCopy writer = null;
    while ( f < fileNames.Length ) {
        // we create a reader for a certain document
        PdfReader reader = new PdfReader( fileNames[ f ] );
        reader.ConsolidateNamedDestinations();
        // we retrieve the total number of pages
        int n = reader.NumberOfPages;
        ArrayList bookmarks = SimpleBookmark.GetBookmark( reader );
        if ( bookmarks != null ) {
            if ( pageOffset != 0 ) {
                SimpleBookmark.ShiftPageNumbers( bookmarks, pageOffset, null );
            }
            master.AddRange( bookmarks );
        }
        pageOffset += n;

        if ( f == 0 ) {
            // step 1: creation of a document-object
            document = new Document( reader.GetPageSizeWithRotation( 1 ) );
            // step 2: we create a writer that listens to the document
            writer = new PdfCopy( document, new FileStream( outFile, FileMode.Create ) );
            // step 3: we open the document
            document.Open();
        }
        // step 4: we add content
        for ( int i = 0; i < n; ) {
            ++i;
            if ( writer != null ) {
                PdfImportedPage page = writer.GetImportedPage( reader, i );
                writer.AddPage( page );
            }
        }
        PRAcroForm form = reader.AcroForm;
        if ( form != null && writer != null ) {
            writer.CopyAcroForm( reader );
        }
        f++;
    }
    if ( master.Count > 0 && writer != null ) {
        writer.Outlines = master;
    }
    // step 5: we close the document
    if ( document != null ) {
        document.Close();
    }
}