https://bugzilla.wikimedia.org/show_bug.cgi?id=22230
Summary: PdfHandler: Thumbnail creation fails
Product: MediaWiki extensions
Version: any
Platform: All
OS/Version: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: [other]
AssignedTo: wikibugs-l@lists.wikimedia.org
ReportedBy: scop...@gmx.net
When uploading a PDF file the thumbnail and pages are not generated giving the
following error instead of the image (I've tried different PDFs):
----
Error creating thumbnail: convert: no decode delegate for this image format
`/tmp/magick-XXY76lVk'.
convert: missing an image filename
`/var/www/w/images/thumb/8/84/Poster.pdf/page1-424px-Poster.pdf.jpg'.
----
Some debugging seems to show that Ghostscript may be to blame. If writing the
Ghostscript output to a file instead of piping it to convert in the PHP script
I get:
----
Unrecoverable error: stackunderflow in .setdistillerparams
----
Issueing the same command from the command line works fine and produces a
thumbnail:
----
('/usr/bin/gs' -sDEVICE=jpeg -sOutputFile=- -dFirstPage=1 -dLastPage=1 -r150
-dBATCH -dNOPAUSE -q '/var/www/w/images/8/84/Poster.pdf' | sudo
'/usr/bin/convert' -depth 8 -resize 424 -
'/var/www/w/images/thumb/8/84/Poster.pdf/page1-424px-Poster.pdf.jpg') 2>&1
----
Software:
Linux 2.6.26-2-vserver-amd64
gs-gpl 8.62.dfsg.1-3.2lenny1
imagemagick 7:6.3.7.9.dfsg2-1~lenny3
php5-cgi 5.2.6.dfsg.1-1+lenny4
How can I further debug?
Hope you can help!
matsch
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