[Scribus] digital printing with pruned (?) pictures

[fredd]

> 2. Create a larger document, say 2 cm larger on each side as to have
> enough room to draw manually your crop marks. Select all elements
> from your actual document and paste them in the larger one. Position
> that in order to fit inside the crop marks and then enlarge any
> element that must "bleed" so they actually go over the edge of the
> page by 3 mm.
> 


Furthermore, you have in the "samples" directory of scribus a script
called trait_de_coupe.py which can create crop marks around one
object.
So you can create a empty text frame A4-sized, and make sure all your
objects fit in. Then select this text frame and run the script
trait_de_coupe.py using the script menu.