Photo Grid Print is a dialog window that lets you print a set of photos in a grid on a single page. You set the number of rows and columns in the grid. It figures out an efficient layout to maximize the photo size and minimize the paper used, rotating photos as needed. You can tell it to fill the page with your photo(s), repeating them as needed.

Once installed, the dialog is started by selecting some photos in the Gnome file manager (nautilus) or in the F-Spot application: right-click > Open With... > Open with 'Photo Grid Print'.

Written using Python, GTK+ and Glade by Ralph Thomas (ralpht@gmail.com).