gistfile1.txt

$ file qrailing.pdf
qrailing.pdf: PDF document, version 1.6
$
$ gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -o output.pdf qrailing.pdf
GPL Ghostscript 9.52 (2020-03-19)
Copyright (C) 2020 Artifex Software, Inc.  All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
Processing pages 1 through 484.
Page 1
Error: /rangecheck in --restore--
Operand stack:
   --dict:6/14(L)--   --dict:38/38(ro)(L)--
Execution stack:
   %interp_exit   .runexec2   --nostringval--   restore   --nostringval--   2   %stopped_push   --nostringval--   restore   restore   false   1   %stopped_push   1990   1   3   %oparray_pop   1989   1   3   %oparray_pop   1977   1   3   %oparray_pop   1978   1   3   %oparray_pop   restore   restore   2   1   484   restore   %for_pos_int_continue   1981   1   7   %oparray_pop   restore   restore   1894   2   9   %oparray_pop
Dictionary stack:
   --dict:738/1123(ro)(G)--   --dict:1/20(G)--   --dict:80/200(L)--   --dict:80/200(L)--   --dict:135/256(ro)(G)--   --dict:318/325(ro)(G)--   --dict:32/32(L)--   --dict:6/9(L)--   --dict:6/20(L)--
Current allocation mode is local
GPL Ghostscript 9.52: Unrecoverable error, exit code 1
GPL Ghostscript 9.52: ERROR: rangecheck (-15) reclaiming the memory while the interpreter finalization.