Concatenating all Pdf files in Particular folder
PdfFileEditor class in Aspose.Pdf.Facades namespace offers you the capability to concatenate the PDF file. You can even read all the Pdf files in a particular folder at runtime and concatenate them, without even knowing the file names. Simply provide the path of directory, which contains the PDF documents, that you would like to concatenate.
Please try using the following code snippet to achieve this functionality.