Assembling PDF's from images

I know several people here use tools to take a directory of images and turn them into a PDF. I'm looking for some advice on how to do this. Ideas on how to do this using either free or commercial software is fine. I gather that the images will be JPEG (I don't know they are planning on capturing the images yet, and will try to convince them to use a loss less format, an option might be TIFF or Nikon RAW). Should anyone care this is for a Historical Library, and you now know as much as I know. Zane -- -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com (primary) | OpenVMS Enthusiast | | | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |