Hi there @Acash,
To do this, either you'll need to use an app from the app store or do custom coding to add it to the footer and any other place you want. Let me know if you need my help.
sorry for this issue you can do this if you are able to code can you please just add the newsletter section at theme.liquid above footer code then show all page if not able to code so please add me on staff account so i will check and fix this code
This is an accepted solution.
i have update please check
It can be done by doing some code customization. please send me a personal message and we can discuss what you'd like