Overview:

When no CropBox is defined in a PDF and -dUseCropBox is specified, Ghostscript experiences an unrecoverable error.

Steps to Reproduce:

gs -sDEVICE=tiffg3 -dUseCropBox -sOutputFile=out.tiff nocropbox.pdf

Actual Results:

GPL Ghostscript 8.70 (2009-07-31)
Copyright (C) 2009 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Processing pages 1 through 1.
Page 1
   **** Page has no /MediaBox attribute. Using the current page size.
Error: /stackunderflow in --run--
Operand stack:
   --dict:11/11(L)--   612.0   792.0   3
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1830   1   3   %oparray_pop   1829   1   3   %oparray_pop   1813   1   3   %oparray_pop   --nostringval--   --nostringval--   2   1   1   --nostringval--   %for_pos_int_continue   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1148/1684(ro)(G)--   --dict:1/20(G)--   --dict:75/200(L)--   --dict:75/200(L)--   --dict:106/127(ro)(G)--   --dict:285/300(ro)(G)--   --dict:21/25(L)--   --dict:2/6(L)--
Current allocation mode is local
GPL Ghostscript 8.70: Unrecoverable error, exit code 1

Expected Results:

Ghostscript should defer to using MediaBox if CropBox is not present. If this is not desired functionality for -dUseCropBox, another flag should be present to prefer CropBox, but defer to MediaBox in its absence (e.g., -dPreferCropBox)

Build Date & Platform:

GPL Ghostscript 8.70 (2009-07-31) on FreeBSD 7.0-RELEASE

Additional Information:

"Expected Result" functionality is desired for simpler automated conversion chain. Without the ability to default to MediaBox when no CropBox is present, extra steps must be taken to either identify PDFs with a CropBox or blindly defer to not using -dUseCropBox after first failure.