I am new to sharepoint I need to set permission in the document library SharePoint user Who upload the documents from asp.net page. I need to know how to set the permission in document library from sharepoint.
You can do it manually by going to Manage permissions on listitem. Then Click break inheritance and then grant the Permissions to created by user.
But i would recommend to do it from workflow.
To create workflow check:
To edit document library permissions: