[iText-questions] Problem concatinating pdfs

[Smith, Tim]

I am trying to concatenate two pdf files, however when the file created is opened I get the error 'There was an error opening the document. The file is damaged and could not be repaired.' My code is almost exactly taken from concat_pdf, can anyone see where i went wrong?       public void generatePDF(FileOutputStream fos)   {     try     {         int f = 0;       Document document = null;       PdfCopy writer = null;       PdfReader reader = null;       String[] args = {"confirmation01.pdf", "billing01.pdf"};       while (f < 2)       {         reader = new PdfReader(args[f]);           int n = reader.getNumberOfPages();         System.out.println("There are " + n + " pages in " + args[f]);           document = new Document(reader.getPageSizeWithRotation(1));         writer = new PdfCopy(document, fos);         writer.setPageCount(2);         document.open();           PdfImportedPage page;         for (int i = 0; i < n; )         {           ++i;           page = writer.getImportedPage(reader, i);           writer.addPage(page);           System.out.println("Processed page " + i);         }         f++;       }       document.close();       writer.close();     }     catch(Exception e)     {       e.printStackTrace();     }   }     Thanks in advance   Timothy Smith CGI 5099 Creekbank Rd. Phone: (905)282-3532 Cell: (905)866-4970