Обо мне:DataVare PDF Total Tool has multiple advanced features that helps users manaing their PDF documents in their own way. It is made to protect PDF files to avaoid unwanted editings, also offers to unlock PDF files password secured PDF files, add text and image watermarks, lets users split and merge multiple PDF files. The most flexible features is that the applictaion can be funtionable on all Windows OS. Even it has a free demo available.