Steps to resize your photo 150px ✕ 180px (width ✕ height) and keep the file size within 150KB
Click on the area marked with red color.
Then select your photo.
After that click on the button CONTINUE TO EDIT PICTURE
Scroll down to the Resize Your Picture area
Select "Custom Size" from options
After that set width to 150, height to 180 and JPG max Filesize to 150 as like as shown in the following figure. Then click on the button I’M DONE, RESIZE MY PICTURE!
Then click on the button "Save to Disk" and save your photo
You are done!