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Old 04-26-2006, 03:47 PM   #1
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ImageMagick/Ghostscript Troubles

Hi all,

I'm trying to convert a PDF document to a JPG image using ImageMagick. The file is called "front.pdf" and I want to convert it to "front.jpg." When I use the convert command, I am getting an error:

$ convert front.pdf front.jpg
Error: /undefined in --filter--
Operand stack:
   --dict:7/7(L)--   false   false   --dict:10/14(L)--   --nostringval--   --nostringval--   JPXDecode
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1   3   %oparray_pop   1   3   %oparray_pop   1   3   %oparray_pop   --nostringval--   2   1   1   --nostringval--   %for_pos_int_continue   --nostringval--   --nostringval--   --nostringval--   %array_continue   --nostringval--   false   1   %stopped_push   --nostringval--   %loop_continue   --nostringval--   6851   2   11   %oparray_pop   --nostringval--   false   1   %stopped_push   2   11   %oparray_pop   --nostringval--   --nostringval--   --dict:0/0(L)--   --nostringval--   false   1   %stopped_push   --nostringval--   %loop_continue   --nostringval--   182845   2   12   %oparray_pop   --nostringval--   false   1   %stopped_push   2   12   %oparray_pop   --nostringval--   --nostringval--   --dict:3/3(L)--   --nostringval--   false   1   %stopped_push   --nostringval--   %loop_continue   --nostringval--   182239   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--   %array_continue   7   14   %oparray_pop   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1072/1123(ro)(G)--   --dict:0/20(G)--   --dict:93/200(L)--   --dict:93/200(L)--   --dict:97/127(ro)(G)--   --dict:229/230(ro)(G)--   --dict:19/24(L)--   --dict:4/6(L)--   --dict:20/31(L)--   --dict:14/20(L)--   --dict:1/1(ro)(G)--   --dict:1/1(ro)(G)--   --dict:1/1(ro)(G)--   --dict:7/16(L)--
Current allocation mode is local
GNU Ghostscript 7.07: Unrecoverable error, exit code 1
convert: Postscript delegate failed `front.pdf'.
Any help would be greatly appreciated!
Old 04-27-2006, 04:02 PM   #2
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Should work.

It is either a pdf in non-standard format, or too new a format. Or you have a version of convert which contains a bug.

jlinkels@jlinkels_pc:~$ convert -version
Version: ImageMagick 6.0.6 11/29/04 Q16
Copyright: Copyright (C) 1999-2004 ImageMagick Studio LLC
Just tried a conversion and it works without a problem. I created the pdf from a ps file using ps2pdf.

Old 04-27-2006, 10:19 PM   #3
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I am guessing that Imagemagick itself cannot display PDF directly, but needs a helper app like Ghostscript.

Ghostscript should be able to generate a jpeg directly, with something like

$ gs -sDEVICE=jpeg -o image.jpg file.pdf

Command 'gs -h' shows all the output 'devices' for Ghostscript, including various other image formats.
Old 12-17-2008, 06:08 PM   #4
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Ghostscript error

HI Im getting a similar error and cant find any help anywhere.
This same script works on some pdf and not on others and i cant seem to figure out why or how to get it to work on all of the pdf im needing images from.

heres the error:
[root@XXXXXX files]# gs -SDEVICE=jpeg -r72 -sOutputFile=../img/newsletter/asid_occ_summer2008.jpg -dNOPAUSE -dBATCH -dGraphicsAlphaBits=4 -dUseCIEColor -dLastPage=1 -- asid_occ_summer2008.pdf
GNU Ghostscript 7.07 (2003-05-17)
Copyright (C) 2003 artofcode LLC, Benicia, CA.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Processing pages 1 through 1.
Page 1
Error: /undefined in --filter--
Operand stack:
   --dict:9/9(L)--   false   false   --dict:10/14(L)--   --nostringval--   --nostringval--   JPXDecode
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1   3   %oparray_pop   1   3   %oparray_pop   1   3   %oparray_pop   --nostringval--   2   1   1   --nostringval--   %for_pos_int_continue   --nostringval--   --nostringval--   --nostringval--   %array_continue   --nostringval--   false   1   %stopped_push   --nostringval--   %loop_continue   --nostringval--   5918   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--   --nostringval--   %array_continue   7   11   %oparray_pop   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1064/1123(ro)(G)--   --dict:0/20(G)--   --dict:74/200(L)--   --dict:74/200(L)--   --dict:97/127(ro)(G)--   --dict:229/230(ro)(G)--   --dict:19/24(L)--   --dict:4/6(L)--   --dict:20/31(L)--   --dict:1/1(ro)(G)--   --dict:7/16(L)--
Current allocation mode is local
GNU Ghostscript 7.07: Unrecoverable error, exit code 1

Last edited by jpwdesigns; 12-17-2008 at 06:10 PM.


convert, ghostscript, imagemagick

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