To manipulate multipage TIFF files:
If you have a recent version of Office, you can use the included "Microsoft Document Imaging" program as mentioned above.
If you have Windows 98/SE or 2000, you can use (Kodak) "Imaging" which is included with those versions of Windows and is usually found on the Start Menu under Accessories.
If neither of those are options, you can try
Irfanview or
XnView, both of which are freeware (for non-commercial use) programs which include multi-page TIFF manipulation functions.
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If you want something simple and completely free, I've compiled some code sourced from
this page - you can download the ready-to-install application
here.
Note: You may need to install Microsoft .NET Framework 3.5 before installing the application.To use:
(1) "Load Image" (i.e. your several single page TIFFs). You can load one at a time (to manually determine the page order), or many at once (in which case the page order will be determined by the filenames chosen, i.e. sorted in alphabetical order).
(2) Either "MultipageTiff Save" (to save the loaded images into a new multipage TIFF file), or "Add To Existing Tiff File" (which will append the loaded images onto the end of an existing TIFF file).
The resulting TIFF file should be in the proper Landonline-sanctioned CCITT G4 format, black and white, and at the same page resolution and DPI as the original single TIFFs.