Thread:Extension talk:PdfHandler/Re: prerequisites

The wiki in our server didn't show up the PDF images, even after installing the extension. Then I've asked my server admin to install ghostscript, imagemagick, and xpdf, but the wiki still couldn't show the PDF images. Reading the ghostscript documentation, is it because the admin should install an optional package GhostPDF?

For information, this is the error message:

Error creating thumbnail: /bin/bash: gs: command not found /bin/bash: convert: command not found

And I use these settings: