We got a Seperated pdf file (originally from Freehand with pantone colors and dcs). We do not have Freehand!

Our imposition package does not recognise on what page the colour must come. So it get mixed.

Normally in a separated pdf is indicated: cyan:1 at the bottom of the page, pantone281:1, pantone365:1. So i think, this is where the imposition can recognise how many pages there are. But this pdf is not showing these numbers.

I resaved as Postscript, but it is not there in the text.
Were can we change this, so the imposition can take the right pages.
(we have 21 gray separations for 8 pages imposition)