I have a legacy book written in Plain TeX which contains code that centers the page in A4 paper. I need to add crop marks to these A4 pages at the correct positions for the target book size.
I have the originals TeX sources and the legacy dvi and ps files.
I thought about using
dvips -k, but it does not allow me to choose the position of the crop marks. Do I need to hack
crop.pro to move the crop marks to where I need them?
What other options are available? Use a small wrapper document that uses the pdfpages and crop packages?
I'd rather not have to recompile the document if I can avoid it.