User Guide

822
Adjoining objects appear to overlap
in Preview view or when printed to
low-resolution printers.
The PostScript overscan conversion rule
can cause adjoining objects to look as if
they overlap. The Illustrator previewer
and PostScript rasterizers in printers
overscan the edges of shapes by one
device pixel to prevent gaps from
appearing between objects.
To correct the problem of overscanning,
use an output device with higher resolu-
tion, if possible. Imagesetters at high
resolution won’t produce visible over-
scan. See also Resolution and screen
frequency basics.
You can also try changing the stacking
order of the objects. See Stacking
objects for more information about
changing the stacking order.