printing - auto change code number

[rolns]

I need to print many MS word or PDF documents, every document should have a different code number, for example first document will have code AB001, second document AB002, third document AB003....
last document AB999. Very trivial example how should look first three pages - http://img65.imageshack.us/my.php?image=pagesqt3.jpg

Now I must manually change this code and print each page separately.

Is there some way to automatize this process so that, computer automatically changes these (AB001, AB002...) codes and prints every document with different code?

thank you!