I did recieve an pdf file that is possbile to fill it up, but when try to do so nothing heppend, I did check the security of the files and it is possible to fill it up.
any idea why is this heppening? I have Adobe Reader 9.1. I I did follow this:
Fill out the form by selecting fields with the mouse, or using tab to navigated between fields
Do you see something about PDF/A mode?