Batch removal of "hidden text" from pdfs?
How to remove "hidden text" from pdf documents (ver 1.2, 1.3, 1.4, ..., 1.8) in a batch way. I know I can go into Acrobat 8 and select the menu item to examine document, and select the "remove hidden text" but I need to do this for 1000 pdf documents on a yearly basis.
I read that PDF optimizer does not have this capability. Any other 3rd party tools or even a programming solution would be ok.