Google is your friend
https://www.samsung.com/nz/support/mobile-devices/how-to-resize-photos-in-the-gallery-app-on-your-galaxy-phone/
Type: Posts; User: MarkN
Google is your friend
https://www.samsung.com/nz/support/mobile-devices/how-to-resize-photos-in-the-gallery-app-on-your-galaxy-phone/