The following is a list of acceptable art formats:
.cdr (corel draw versions 8,10, 11)
.pdf
.eps
.ai (version 3)
.tiff
.jpg
.bmp
.gif
.plt (HPGL plotter file)

The above formats must be converted to curves before sending.
.jpg, .eps & .bmp files should be 300 dpi or greater. Images taken from web sites are not suitable for reproduction as they are generaly low resilution files.
ART SPECS