My main input file not only contains PSTricks codes but also imports EPS images produced by
epstool from standalone PSTricks input files compiled with
dvips input.dvi -E -o output.eps.
I am worried whether the following warning that I got from epstool will endanger me.
The PostScript code must avoid using PostScript operators that would interfere with the embedding. These include operators with global effects such as changing the page size and changing the half tone screen.
How to make sure I am safe?