To add password to a PDF file:
Launch Free PDF Converter Utilities and click “Tools” tab. Click “Add Password” to choose a PDF file and then click “OK” to activate “Apply Password” dialog.
Welcome to FreeAudioVideoSoft.com!
FreeAudioVideo Software was founded in 2005 by
a group of dedicated experts, software
engineers and website editors and most of them
had many years of experience in software industry.
With the help and enthusiasm of them, we swiftly
make our goal clear – providing completely free
and high-quality software products for all
Windows and Mac users around the world.