I make ntfs permission read only to users to view files only but i want to prevent them from take copy of these files outside this shared folder to their own pc 

Used AD RMS

"AD RMS is used to protect the contents of the file, not the actual file itself.  AD RMS won't prevent somebody from copying a protected file to another location (although it can help prevent somebody from forwarding a protected email).  AD RMS will protect a file from being viewed without proper permission.  If you've already deployed AD RMS in the environment, you can protect supported documents from within the application (Word, Excel, Outlook, etc.).  There are some step-by-step videos that walk through the protection process:

http://technet.microsoft.com/en-us/edge/ff832960.aspx?query=1&Category=rms

BTW - if you don't currently have AD RMS and plan to get rid of the right-click Copy/Cut options, there are other ways to copy and cut the files (command line and third-party utilities).  So, I would advise that you protect the documents with AD RMS instead (and forget about removing copy/cut options from menus)."

https://social.technet.microsoft.com/Forums/en-US/d10e03d5-8276-449a-b8b1-2560f880d2ce/how-can-i-prevent-files-from-being-copied-by-specific-users-using-adrms?forum=rms

https://social.technet.microsoft.com/Forums/en-US/b9da4cf6-cc10-4809-9477-d554e11e7b91/how-can-i-prevent-files-from-being-copied-by-specific-users?forum=winserverDS

The reality is that if someone can see a file, they can copy it. All you can do is make it harder.

One simple measure is to protect the document for filling in forms with a password (and no form fields).

People will be unable to select text. However, this, like other measures, is easily defeated.

Again, if they can see it, they can sit down and type a copy of the file. They can use something like SnagIt to capture any images. This is much more a matter of controlling access and levels of trust.