Create Pages in SharePoint Document Centre Site Template
SharePoint supplies a number of out of the box site templates for various purposes, one such template is the Document Centre Site Template which is a site for managing documents within a corporate enterprise. If you have created a Document Centre site you may have noticed that you are unable to create pages. This is because you need to have publishing features enabled at the new document centre site level. This is simple to resolve:
1. Select Site Settings from the Site Actions Cog
2. Select the Manage Site Features link from under the Site Actions header
3. Scroll down the Site Features list until you reach SharePoint Server Publishing and click Activate
Now, if you click on the Site Actions Cog the Add a Page option will appear
And now the feature to create a page is enabled!