[luatex] Is there a hook that could be used by a pdf postprocessor?

[Knut Petersen]

Hi everybody!

I include a lot of pdfs without embedded fonts and use ghostscript (together with extractpdfmark if necessary) as a pdf postprocessor to insert one optimized subset of every font instead of one subset of every font for every included pdf.

Is there a hook that would allow a program to be executed after \jobname.pdf has been closed?

Knut