How to share a document library item with Distribution/Security Groups?

Question

I got a document library. There are many documents.And I got security groups. But i cannot find them for manage permission. I want to give them permissons to see the file.

Answer 1

There is no Distribution Group and Security Group among SharePoint Groups those are AD Groups.

For your requirement you need create new groups and assign them the permission you need.

Please check this link for more details about SharePoint Groups.