You will need tiling if you create a document page that is larger than your printer can handle. For example, you could set the word "Calamus" for a 3 by 6 ft poster, and use tiling frames to divide the output into several 8.3" x 11.7" A4 printer pages. Of course, you would have to join the pages by hand. You can define tiles manually (where you can use any desired sizes), or you can let Calamus do the job automatically. In the latter case you can also establish how much the frames should overlap.