Confluence 5.7 has reached end of life
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This page gets you started on customising the Confluence login page, to add your own logo or custom text. This will not customise the login process, just what users sees when they log in.
Notes:
Only administrators with access to the server where Confluence is running can modify the Confluence login page.
To change the login page:
confluence/login.vm.The same process can be applied to modify most of the templates in the Confluence web application. Be careful to test your changes before applying them to a live site. The templates contain code that is vital for Confluence to function, and it is easy to accidentally make a change that prevents use of your site.