Cms and back-up

Hello, i’m looking for a good Cms, Wat is your suggestion?
But the real question is, a customer change text and photo’s with the Cms system, 2 months later the customer called me for changed one small thing. First i need a copy from my server of the website because there are somethings change about text and photo’s? How i do this and import to Rapidweaver and open the project with the changed things?

Best regards, Ribse

Easy CMS can do this without any issues.