In qlik view security is divided into 4 types namely
1) Active Directory 2) custom Directory 3) Local Directory 4) custom Directory
If you go with all the above except custom directory.
In qlik view security is assigened based on windows security.
so in order to avail security or to distribute all documents to particular users.
go to individual documents --> properties --> security --> edit --> add-->
here add the user whoom you want to give acesses for the document
Thanks anr Regards