How to Reduce the size of my Image?

Site URL: https://bluebird-porcupine-yzdg.squarespace.com/home-v11

Hello! Is it possible to change the size of an image for e.g. reduce it by 70%? Without having to adjust in Photoshop?

Many thanks,

Best,

Faiz

Hi. Can you provide access password?

Sorry Tuanphan, yes the pword is bluebird.

It's the last image at the bottom of the page.

Thanks.

49 minutes ago, scholarsayze said:

Sorry Tuanphan, yes the pword is bluebird.

It's the last image at the bottom of the page.

Thanks.

Hi. Which image?

Hi sorry yes so this pag e: https://bluebird-porcupine-yzdg.squarespace.com/home-v11

Pword: bluebird

And the image at the bottom of the page as attached.

Many thanks!