public static void Run()
{
// ExStart:ConcatenateArrayOfPdfUsingStreams
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdfFacades_Pages();
// Create PdfFileEditor object
PdfFileEditor pdfEditor = new PdfFileEditor();
// Output stream
FileStream outputStream = new FileStream(dataDir + "ConcatenateArrayOfPdfUsingStreams_out.pdf", FileMode.Create);
// Array of streams
FileStream[] inputStreams = new FileStream[2];
inputStreams[0] = new FileStream(dataDir + "input.pdf", FileMode.Open);
inputStreams[1] = new FileStream(dataDir + "input2.pdf", FileMode.Open);
// Concatenate file
pdfEditor.Concatenate(inputStreams, outputStream);
// ExEnd:ConcatenateArrayOfPdfUsingStreams
}