Problem with imagick module - PHP

I have a strange error开发者_运维技巧 in the image magick php module.

ImagickException [ 1 ]: Postscript delegate failed '/tmp/magick-XXxIARsr': wd7C.cache @ error/pdf.c/ReadPDFImage/638

From what it seems it's a problem with authorization.

I have suphp and suexec in apache. I think there is a problem with the cache path. but i changed it in the configure.xml file and the path is still the same.

Do you have any idea ?

"delegates" in Imagick-speak are just programs that imagick starts to deal with some file formats it cannot process on its own. As in your case - imagick does not have a built-in PDF reader, it relies on GhostScript (I believe) to render those. Most likely you either don't have GhostScript/GhostView installed or there is some problem in the PDF that freaks out GhostScript - such as using non-embedded windows fonts.