array – Merge TIFF files into a multi-page C # TIFF file

I create a program to convert and concatenate files. I wanted after the conversion of PDF files to TIFF format, I combine them into a single multi-page TIFF file.

I have been looking for a long time and I still have not found a code that works as I wanted it.

I convert PDF files to TIFF format and save them to a temporary folder. Then I have an array of strings that will contain all those files in the temporary folder (via a function GetFiles ()).

I want you to combine the files in this table into a multi-page TIFF.
Can someone have the solution or can you direct me to her?

Thank you in advance.