Thank you very much for useful info 
Cheers
Thank you very much Teela!!! Good luck!!! 
Thanks for the help! 
And when I use photoshop how to arrange?
Hi all, 
I am ready to design a booklet with 12 pages.
I would like to ask how to arrange pages in the files?
I think it is better to have 6 file with two pages. As follows:
first file: page 12 – page 1
second file: 2 page – page 11
...
What would you advise me?
It’s too conceptually similar. 

