When a raster image is placed in a Design drawing, the raster image file is NOT saved inside the Design drawing file. Only the location of the image file on the user’s computer is saved.
If you need to transfer the Design drawing to another computer, the raster images must be transferred as well. In addition, the raster images must be placed in the exact same file location on the new computer. Otherwise, the raster images will not be displayed when the drawing is opened at the new location.