I have about 650 photos, I want to add a white background to them so that the photos' height doesn't exceed 1000px, see an example below.
It's a photoshop file that I saved it as .jpg, and this is the photo that will be put on it:
So in the end, it'd look like this, a 1000x1000 px photo:
PS: Please drag the files out in the browser so you could see the background difference since it's white.
PSS: Preferably Photoshop/Illustrator/GraphicsMagick/Node.js.