Any image you can open on your computer can easily be printed at the modeling scale of your choice. Includes presets for HO, N, Z, G, O, #1, and S scale or user can enter any scale ratio. Just select any two points on the image and enter the actual distance, select the scale, and print. Images too large to fit on a single page are automatically spanned across multiple numbered pages for easy assembly. Great for scratch building or for printing scanned color images to add to your layout. Requires Windows XP, SP3, Vista or Windows 7, CD-ROM drive