Ghostscript. It is a virtual printer.
It is fairly advanced stuff to set up but is well documented and free.
I couldn't get good results to tiff from Word document text with colour.
However it does jpgs too and I get excellent results.
If you are trying to automate this, you'd better look at Acrobat Reader ActiveX component - it is installed along with Reader itself. It has rich scripting interface.
Hi ww284773 I have been using Magic PDF software and it works well in converting PDF document into TIFF format. You can check it out at. www.magic-PDF.com. albert.s