... of the aspect ratio. All of them crash up with a layout-sized metafile. The one shining exception is Templot's sketchboard. Which loads metafiles fast, and keeps them as metafiles so that panning and zooming is almost instant. (Provided that is that you don't rotate them.) Consider for example this section of track plan in EM. It is 11ft x 2ft-6in, or 132" x 30". I exported an EMF metafile from T3 recorded at 600 DPI resolution (for best quality printing): 2_092034_260000000.png If that is rendered as a bitmap at 600 DPI (dots-per-inch), it presents an image 79200 x 18000= 1425600000 dots or 1425 Megapixels. A typical image from a good DSLR camera is 24 Megapixels. So it's obvious that any software which converts the EMF to a bitmap at the native recorded size is going to struggle. It's equivalent to displaying 60 such camera images simultaneously. But as a metafile it loads quickly into the Sketchboard and zooms and pans almost instantly. This is the T2 sketchboard ...