Technically, it's true that it's optional because there is a particular combination of LaTeX engine and output format that requires neither Ghostscript nor ImageMagick, but that's very limited. I'll try to come up with a wording that explains this clearly.
Technically, it's true that it's optional because there is a particular combination of LaTeX engine and output format that requires neither Ghostscript nor ImageMagick, but that's very limited. I'll try to come up with a wording that explains this clearly.