Is it possible to work with the site without the admin panel?

Question

Network administration

Good afternoon!
I maintain a site with 75,000 images. Through the admin panel it's just hell to copy or change them. Is there any possibility to work without hosting admin panel? Please tell us how it's done.

Answer 1

What does it mean to change images?
You can copy archives or discover Shell

Answer 2

FTP , SFTP