If you want to quit form Facebook. Then don’t worry about losing your photos and posts.
Now Facebook allows you to download your all data. So, need to worry about that.
You have follow juts few steps:
1. Click on Settings & Privacy > Settings > Your Facebook Information
2. Click Transfer a copy of your Information, and re-enter your password.
3. Then you have choose what type of transfer you want – photos, videos, posts or notes.
4. Next you have to choose on which platform you want to transfer your information.
5. Click on Confirm Transfer.
Now you have a copy of your Data (post, photos, videos etc.)