The PSWRAP utility can be used to convert a PostScript file to
    a file with varying length records, carriage return carriage
    control, and no record longer than the specified length.

                                 WARNING

       This utility cannot produce correct output for some
       PostScript files. PostScript files contain complex programs
       written in the PostScript language. The PSWRAP utility
       understands the PostScript language syntax and can perform
       syntactically correct line wrappings. However, some
       PostScript files contain data which cannot be wrapped, for
       instance, input to the PostScript "readstring" operator.
       Short of actually interpreting the PostScript file, it is
       not possible to determine whether or not it is safe to wrap
       lines in the file. The PSWRAP utility ignores this issue
       and as such could output non-functioning PostScript. Be sure
       to test (e.g., print) the output of PSWRAP before mailing
       it to someone else or deleting the input file. QuarkXPress,
       for example, produces output which PSWRAP will not properly
       wrap.

       If a readstring operator is seen in the PostScript file, a
       PMDF-W-READSTRSEEN warning message will be output.