I want to edit PDF using the epdf library included in LuaTeX (add, bleed/crop/trim box). I can get current trim size of the PDF (if it's set) via epdf PDFRectangle. But I didn't find defined methods to set/change thees boxes. I know that epdf is still in a development stage, but maybe there are implemented (but not documented) methods?
luatex version 0.74.