You can open and look at it. And you can come back to the original here and resave. Now that you know how to save images from websites, you need to know how to do so legally. Copyright law declares that images are as much property as text. You need permission to make copies of images, just as you would to use text.
Ownership rests in the creator in most circumstances.
Some websites will state that they give permission for certain purposes. By the way, copyright law includes derivative works such as taking an image and distorting it. It regards Web publication as distribution which is more likely to get you in difficulty. Educators have a bit of leeway if the material is not freely available. Okay, the images should all be loaded by now, enjoy.