Legacy ImageMagick Discussions Archive

I'am converting from .pdf to .jpg, .png etc.(doesn't matter). On one computer it's OK, on the other one I obtain horizontal black lines at random heights.

AFAIK Imagemagick "delegates" the conversion to Ghostscript when the input is .pdf.

With the bad computer I have two versions of Ghostscript installed. How can I know to which version Imagemagick delegates? How can I force "delegating" to either Ghostscript version? The most recent isn't always the best! The -verbose option gives this crap:

[ghostscript library] -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dEPSCrop -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=pnmraw" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -dFirstPage=3 -dLastPage=3 "-sOutputFile=C:/DOCUME~1/coulon/LOCALS~1/Temp/magick-kvoGqIvL" "-fC:/DOCUME~1/coulon/LOCALS~1/Temp/magick-By81XudK" "-fC:/DOCUME~1/coulon/LOCALS~1/Temp/magick-W9PDxY0L"C:/DOCUME~1/coulon/LOCALS~1/Temp/magick-kvoGqIvL PNM 540x760 540x760+0+0 1-bit Bilevel DirectClass 50.5kb
source.pdf[2]=>source.pdf PDF 540x760 540x760+0+0 16-bit Bilevel DirectClass 50.5kb
source.pdf[2]=>essai.jpg PDF 540x760 540x760+0+0 16-bit Bilevel DirectClass 146kb 0.031u 0:01

The "delegate.xml" fiel either gives the delegate as a full path, OR uses the current PATH environment variable.
Depends on how it was installed.

Modify the delegate configuration file if you need to.

the PATH command gives no path to Ghostcript, and delegate.xml contains this line:

<delegate decode="pdf" encode="ps" mode="bi" command=""@PSDelegate@" -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dEPSCrop -dAlignToPixels=0 -dGridFitTT=0 -sDEVICE=pswrite "-sOutputFile=%o" -- "%i""/>

How can I modify the equivalent of PSDelegate?

convert -list delegate displays this: pdf<=>eps "C:/gs/gs8.14/bin/gswin32c.exe"
but this gs8.14 is not present in delegate.xml. Is it in another configuration file?

That looks like the source code delegates file, not the installed one.

Mine has... which means the command is just "gs" so Im will find it on the current PATH environment variable.