Hi @Ben Pathirana,
If you are using SharePoint Online, you can refer to the following steps to set permissions for the page:
- Navigate to your page library, select the page you want to set permissions for, right click your mouse and check Manage Access.
- Select Advanced at the end of the pop-up window.
- Click Stop Inheriting Permissions. This will cause the page to stop inheriting permissions from the site and use its own customized permissions.
- If you want a particular user or group to no longer have access to the page, you just need to check them off and remove the user permissions. You can also modify or add user permissions.
If you are using SharePoint Server, you can refer to the following steps to set permissions for the page:
- Navigate to your page library, select the page you want to set permissions for, right click your mouse and check Share > Shared With > ADVANCED.
- What you do next is consistent with SharePoint Online.
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