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documentcloud / docsplit

Break Apart Documents into Images, Text, Pages and PDFs
http://documentcloud.github.io/docsplit/
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Ghostscript is needed to use docsplit with PDF files #61

Closed evanj closed 12 years ago

evanj commented 12 years ago

The document doesn't specify that you need to install ghostscript. I suspect most Linux distributions install this by default for various Postscript/PDF rendering, but it doesn't get installed on Mac OS X. I listed it as an optional dependency, as maybe there are uses of docsplit that don't need it?

This is an "indirect" dependency: graphicsmagick is actually what uses this.

Example error message with ghostscript:

execvp failed, errno = 2 (No such file or directory) gm convert: "gs" "-q" "-dBATCH" "-dMaxBitmap=50000000" "-dNOPAUSE" "-sDEVICE=ppmraw" "-dTextAlphaBits=4" "-dGraphicsAlphaBits=4" "-r150x150" "-dFirstPage=1" "-dLastPage=1" "-sOutputFile=/var/folders/7f/_bn7l9zs7c7d_v15pgf8yr5m0000gn/T/d20121106-64573-1o6ttz4/gmxUt13R" "--" "/var/folders/7f/_bn7l9zs7c7d_v15pgf8yr5m0000gn/T/d20121106-64573-1o6ttz4/gm3lF7D8" "-c" "quit". gm convert: Postscript delegate failed (/var/folders/7f/_bn7l9zs7c7d_v15pgf8yr5m0000gn/T/tmpPs0VPq/509948e93e091afc3ab1e1c9/original.pdf).

jashkenas commented 12 years ago

I thought that graphicsmagick had it as a dependency when you tried to compile it. No?

evanj commented 12 years ago

Not in homebrew:

$ brew info graphicsmagick graphicsmagick: stable 1.3.17, HEAD http://www.graphicsmagick.org/ Depends on: jpeg, libpng

I also looked at Ubuntu and ghostscript is just "recommended". It will almost certainly be installed there, but it isn't mandatory.

Evan

http://evanjones.ca/