Can't convert pdf to png :(

[fotanus]

I have the following problem when trying to convert some pdf files. Following the output:

Code: Select all

$ convert NoSilverBullet.pdf a.png
Error: /syntaxerror in -file-
Operand stack:

Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1910   1   3   %oparray_pop   1909   1   3   %oparray_pop   1893   1   3   %oparray_pop   1787   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push
Dictionary stack:
   --dict:1167/1684(ro)(G)--   --dict:0/20(G)--   --dict:77/200(L)--
Current allocation mode is local
Current file position is 1
GPL Ghostscript 9.05: Unrecoverable error, exit code 1
convert: Postscript delegate failed `NoSilverBullet.pdf':  @ error/pdf.c/ReadPDFImage/663.
convert: missing an image filename `a.png' @ error/convert.c/ConvertImageCommand/3011.

This PDF won't work: http://www.filedropper.com/nosilverbullet
This other, for example, will: http://www.googleguide.com/print/adv_op_ref.pdf

I have no clue on what I'm doing wrong.

[snibgo]

It seems to convert with no problems under IM v6.9.0-0 and Ghostscript 9.15 under Windows 8.1.

I suggest you upgrade GS.

[fotanus]

I was using a vagrant machine with ubuntu precise64, so I changed to utopic64, which is the last one. Then installed last versions from repo. Here are the versions it gave me, and the output again:

Code: Select all

vagrant@vagrant-ubuntu-utopic-64:~/pubtree$ ghostscript --version
9.14
vagrant@vagrant-ubuntu-utopic-64:~/pubtree$ convert --version
Version: ImageMagick 6.7.7-10 2014-08-21 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features: OpenMP    

vagrant@vagrant-ubuntu-utopic-64:~/pubtree$ convert NoSilverBullet.pdf a.png
Error: /syntaxerror in -file-
Operand stack:

Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1934   1   3   %oparray_pop   1933   1   3   %oparray_pop   1917   1   3   %oparray_pop   1803   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push
Dictionary stack:
   --dict:1183/1684(ro)(G)--   --dict:0/20(G)--   --dict:77/200(L)--
Current allocation mode is local
Current file position is 1
GPL Ghostscript 9.14: Unrecoverable error, exit code 1
convert.im6: Postscript delegate failed `NoSilverBullet.pdf': No such file or directory @ error/pdf.c/ReadPDFImage/677.
convert.im6: no images defined `a.png' @ error/convert.c/ConvertImageCommand/3044.

on ghostscript download page (http://pkgs.org/download/ghostscript), the last version I can see for ubuntu is 9.14. Maybe there is no 9.15 on ubuntu? Or the odd number means a development version?

[snibgo]

Perhaps someone on Unix, and GS 9.14, can try ths out. Sorry, I know nothing about GS versions. Ubuntu distros often seem old (at least they are for ImageMagick), so GS's homepage might be more fruitful.

You might also check "-verbose", to see if IM is giving weird arguments to GS. I get:

Code: Select all

convert -verbose NoSilverBullet.pdf nsb.png

[ghostscript library] -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitma
p=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=
4 -dGraphicsAlphaBits=4 "-r72x72"  "-sOutputFile=C:/Users/Alan/AppData/Local/Tem
p/magick-5860TLgbjeWtuNxT%d" "-fC:/Users/Alan/AppData/Local/Temp/magick-5860BNgn
9eYzHmS6" "-fC:/Users/Alan/AppData/Local/Temp/magick-5860IfCnsxJQKPFR"C:/Users/A
lan/AppData/Local/Temp/magick-5860TLgbjeWtuNxT1 PNG 612x792 612x792+0+0 8-bit sR
GB 64.3KB 0.000u 0:00.000

What version of IM are you on?

[fotanus]

Hi there,

Thanks for helping me! Don't worry if you can't reproduce my stuff. I'm sure I (or someone) will find out how to solve this, just need more time.

My imagemagick version is older than yours:

Code: Select all

Version: ImageMagick 6.7.7-10 2014-08-21 Q16 http://www.imagemagick.org

but I can see with the verbose that the command is quite similar to yours:

Code: Select all

$ convert -verbose NoSilverBullet.pdf nsb.png
"gs" -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72"  "-sOutputFile=/tmp/magick-c0lPHvvV-%08d" "-f/tmp/magick-la8Y9r0A" "-f/tmp/magick-L5fqTtvg"

Should this be a problem on ghostscript or it might be image magick and it is worth trying to compile the 6.9?

[fotanus]

I did it. It happens that for some reason, my PDF had 0 bytes. I should have uploaded a pdf in other folder or something. So I just messed all this up. Terrible sorry

And thanks for the help!

[snibgo]

my PDF had 0 bytes

Tee hee, that's the best laugh I've had all day!

It happens to us all. Glad you are sorted.