tif to pdf

• all part of the libtiff suite of utilities

• convert a color TIFF image to greyscale
• tiff2bw -c lzw input.tif output.tif

• convert a TIFF image to a PDF document
• tiff file cannot have alpha channel or compression

tiff2pdf -p letter -o output.pdf input.tif

• print information about TIFF files

• split a multi-image TIFF into single-image TIFF files

• drag single or multiple .tif files into Acrobat (on the Acrobat program icon), and Acrobat will ask if you want to combine them into a single file
• also, File → Create PDF → From Multiple Files… should work
• in Acrobat 6, there is a problem with the default order of merging documents and it almost always requires user intervention to put the pages in proper order before completing the merge

• imagemagick - http://www.imagemagick.org/script/index.php