Ruby on Rails

Unfortunately I have to hav each file on its own, I must not merge them 

in on single file. Is there a way to simulate several requests in order 

to loop through the array ?

Even if there were, the browser would not be able to understand it.  You 

could use several Ajax requests, but if I were your user, I'd be annoyed 

that your website was randomly downloading files without my consent. 

Why can't you just provide several download links for the files?  Or 

create a zip or tar archive?

So is there another way to merge my xdp file to my pdf without opening 
it in a browser (ie without using the send_file instruction) ? if so, 
this would solve my problem