I have tried to compress pdf outputs produced by XeLaTeX.
Is it necessary to use GhostScript to compress pdf outputs of XeLaTeX?
YES. It is necessary. See Benchmark: xelatex v.s. latex-dvips-ps2pdf, there is a screenshot showing the file size there.
I have tried to compress pdf outputs produced by XeLaTeX.
Is it necessary to use GhostScript to compress pdf outputs of XeLaTeX?
YES. It is necessary. See Benchmark: xelatex v.s. latex-dvips-ps2pdf, there is a screenshot showing the file size there.
Well, if it makes things worse then no :-) In my experience, some PDFs produced by pdfTeX benefit from compression, while others do not. So I guess it depends on the exact internal nature. I've not tried the same with XeTeX, but would imagine that the same argument would apply.