Dynamic watermark from list

Hello everyone,

I have some trouble figuring how to do this in either in javascript or any either way. Basically, what I need to do is the folloing (all automatically since it has to be done weekly to a batch of 150)

From a single file I need to:

1. Put a watermark from a list. Either a XLS or TXT file.

2. Protect it (printing is allowed, no other modifications)

3. Save as

This procedure has to be done on a list of 150 people which every single one has a unique watermark.

I already coded a procedure, but it doesn't work and the forums here doesn't seem to accept pasting code.

I'm using acrobat 9 pro

Thanks!