Ghostscript fails to process certain PDF files in RHEL 6

Issue

• Ghostscript fails to convert certain pdf files to TIFF format using "convert" command from ImageMagick in Red Hat Enterprise Linux 6.

  # /usr/bin/convert  -density 300x300 -monochrome -sharpen 1,1 -enhance testfile.pdf xx.tif
  
  Error: /undefined in findresource
  
  Operand stack:
    --dict:6/15(L)--  F1  11.0  --dict:6/6(L)--  --dict:6/6(L)--  Arial  --dict:11/12(ro)(G)--  --nostringval--  
    CIDFontObject --dict:7/7(L)--  --dict:7/7(L)--  Adobe-Identity
  Execution stack:
    %interp_exit  .runexec2  --nostringval--  --nostringval--  --nostringval--  2  %stopped_push  --nostringval--
    --nostringval-- --nostringval--  false  1  %stopped_push  186 1  3  %oparray_pop  1861  1  3  %oparray_pop
    1845  1  3  %oparray_pop --nostringval--  --nostringval--  5  1  9  --nostringval--  %for_pos_int_continue
    --nostringval--  --nostringval--  --nostringval-- --nostringval--  %array_continue  --nostringval--
    false  1  %stopped_push  --nostringval--  %loop_continue  --nostringval-- --nostringval--  --nostringval--
    --nostringval--  --nostringval--  --nostringval--  %array_continue  --nostringval--  --nostringval--
    --nostringval--  --nostringval--  --nostringval--  %loop_continue
  Dictionary stack:
    --dict:1156/1684(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:22/25(L)--  --dict:4/6(L)--  --dict:21/40(L)--  --dict:6/15(L)--
    Current allocation mode is local
  Last OS error: 2
  GPL Ghostscript 8.70: Unrecoverable error, exit code 1
  convert: Postscript delegate failed `testfile.pdf': No such file or directory @ pdf.c/ReadPDFImage/611.
  convert: missing an image filename `xx.tif' @ convert.c/ConvertImageCommand/2800.</code>
  

• Ghostscript fails to convert the PDF files containing Arial fonts using the convert command from ImageMagick in Red Hat Enterprise Linux 6.

• Ghostscript fails to process PDF files containing non-installed fonts:

  $ /usr/bin/gs -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -dPDFSETTINGS=/default -sOutputFile=out.pdf in.pdf
  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
  Can't find CID font "KozMinPro-Regular".
  Substituting CID font /Adobe-Japan1 for /KozMinPro-Regular, see doc/Use.htm#CIDFontSubstitution.
  The substitute CID font "Adobe-Japan1" is not provided either. Will exit with error.
  Error: /undefined in findresource
  Operand stack:
     --dict:6/15(L)--   F1   16   --dict:5/5(L)--   --dict:5/5(L)--   KozMinPro-Regular-UniJIS-UCS2-H
     --dict:10/12(ro)(G)--   --nostringval--   CIDFontObject   --dict:7/7(L)--   --dict:7/7(L)--   Adobe-Japan1
  Execution stack:
     %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2
     %stopped_push --nostringval--   --nostringval--   --nostringval--   false   1
     %stopped_push   1862   1   3   %oparray_pop   1861   1   3   %oparray_pop   1845   1   3
     %oparray_pop   --nostringval--   --nostringval--   2   1   1   --nostringval--
     %for_pos_int_continue   --nostringval--   --nostringval--   --nostringval--   --nostringval--
     %array_continue   --nostringval--   false   1   %stopped_push   --nostringval--
     %loop_continue   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--
       --nostringval--   %array_continue   --nostringval--   --nostringval--   --nostringval--   --nostringval--
       --nostringval--
     %loop_continue
  Dictionary stack:
     --dict:1150/1684(ro)(G)--   --dict:1/20(G)--   --dict:75/200(L)--   --dict:75/200(L)--
     --dict:106/127(ro)(G)--   --dict:286/300(ro)(G)--   --dict:22/25(L)--   --dict:4/6(L)--
     --dict:21/40(L)--   --dict:6/15(L)--
  Current allocation mode is local
  Last OS error: 2
  GPL Ghostscript 8.70: Unrecoverable error, exit code 1