Legacy ImageMagick Discussions Archive

I just installed ImageMagick-6.5.1-Q16 on Windows XP 32bits from the installer available on the website. In a console, when I try to convert a PostScript file to PNG, I get the following error:

D:\tmp>convert lua-logo-label.ps lua-logo-label.png
convert: `%s': %s "gswin32c.exe" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dEPSCrop -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=pngalpha" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -g1080x1080 "-sOutputFile=C:/DOCUME~1/jvuarand/LOCALS~1/Temp/magick-QTNGbcRS" "-fC:/DOCUME~1/jvuarand/LOCALS~1/Temp/magick-hnlRr_f0" "-fC:/DOCUME~1/jvuarand/LOCALS~1/Temp/magick-0WAcN0c7" @ utility.c/SystemCommand/1833.
convert: `%s': %s "gswin32c.exe" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dEPSCrop -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=pngalpha" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -g1080x1080 "-sOutputFile=C:/DOCUME~1/jvuarand/LOCALS~1/Temp/magick-QTNGbcRS" "-fC:/DOCUME~1/jvuarand/LOCALS~1/Temp/magick-hnlRr_f0" "-fC:/DOCUME~1/jvuarand/LOCALS~1/Temp/magick-0WAcN0c7" -c showpage @ utility.c/SystemCommand/1833.
convert: Postscript delegate failed `lua-logo-label.ps': No such file or directory @ ps.c/ReadPSImage/742.
convert: missing an image filename `lua-logo-label.png' @ convert.c/ConvertImageCommand/2775.

I've read other similar bug reports (with the same "Postscript delegate failed"), and usually the answer is that the PostScript file is invalid. However the file is taken from a public website, and I already converted it successfully in the past. The image is available there:

http://www.lua.org/images/lua-logo-label.ps

I haven't installed any version of GhostScript, because I don't remember ever doing so, while I converted that PostScript file several times on Windows in the past.

Your Postscript file converted without complaint for us on our Windows box with the latest ImageMagick release. Not sure why its failing for you.

Is there a command line option I can pass to get more debug information ?

The weird thing is that I'm almost sure I already converted that file on that computer, but today I got that error. I initially thought my ImageMagick install was somehow corrupted, so I reinstalled the latest version, but the problem persists.

However after some prolongated idle, I sometimes have weird video bugs on that computer. I'll try a reboot if you have nothing else to propose.

A reboot didn't help.

I noticed a reference to gswin32c.exe in the error output from convert. However I have no such executable file anywhere on my computer. Is that supposed to be install by the ImageMagick installer ?

gswin32c.exe is installed on your computer when you install Ghostscript. Ghostscript is required by ImageMagick to interpret Postscript and PDF image files.

Has it ever been possible to do a PS -> PNG conversion without installing Ghostscript ?

Anyway the error message is not very explicit, maybe the presence of Ghostscript should be checked and a proper error message generated in that case.