You have freeze the objects by object level or Sheet level or Document level. If you want to freeze object level then
Object Properties -> Layout -> Uncheck Allow Move / Size option
If you want to freeze by sheet level then
Sheet Properties -> Security -> Uncheck Move / Size Sheet Objects
If you want to freeze by document level then
Document properties -> Layout -> Uncheck Allow Move / Size option
It is a good practice to freeze or lock the objects.
Hope this helps you.