[gs-devel] setoverprint question

[Alistair Braidwood]

Hi,

I'm having difficultly getting overprinting to work
properly when ripping to 1bit cmyk separations (via a
modified bitcmyk).

Specifically, I can't switch off under color removal
when I switch overprinting on.

In the following example, the black fullstop removes
the bottom centre of the other 3 letters, while they
do not affect each other.

----

<< /PageSize [400 400]
   /ProcessColorModel /DeviceCMYK
   /Separations true
>> setpagedevice

/.setoverprintmode where {pop 1 .setoverprintmode} if
true setoverprint

/Courier findfont 144 scalefont setfont

1 0 0 0 setcmykcolor 50 200 moveto (Q) show
0 1 0 0 setcmykcolor 50 200 moveto (E) show
0 0 1 0 setcmykcolor 50 200 moveto (U) show
0 0 0 1 setcmykcolor 50 200 moveto (.) show

showpage
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