Posted: 2006-11-24T11:12:43-07:00
ImageMagick uses Ghostscript to render PDF. Try using Ghostscript directly to render CMYKA or RGBA PDF images.
Use https://github.com/ImageMagick/ImageMagick/discussions instead.
https://download.imagemagick.org/discourse-server/
https://download.imagemagick.org/discourse-server/viewtopic.php?t=7891