Import rasters into any ivtools drawing editor. idraw supports importing tiff images. drawtool supports importing from tiff and the pbmplus image formats (pbm/pgm/ppm) as well as dithered conversion from a JPEG using djpeg, GIF conversion with giftopnm, and arbitrary PostScript rendered as idraw format PostScript by pstoedit.
export rasters
Export rasters in idraw PostScript format which can be displayed by idraw or rendered by gs back into raster form.