TIFF Combiner can be free to evaluate and download. After trying many times, if you feel it is good you can buy one for forever use.
Features of TIFF Combiner:
1.Support Windows 2000 and later systems of both 32bit and 64bit.
2.Combine lots of TIFF files into one TIFF file in batch.
3.Show the page number of TIFF image file.
4.Able to rename output TIFF image files automatically.
5.Allow to viewing TIFF thumbnails via nice TIFF image preview window.

Скачать TIFF Combiner бесплатно на странице загрузки.