Getting original Facebook pictures

Hi, we are a nonprofit organization. Our Facebook page was taken over, and unfortunately Facebook isn't helpful at all. Our page is over ten years old, and we want to archive all of the posts, comments, and more importantly, the pictures. I started a trial of Apify and everything seems promising, however, all of the images that are returned are cropped into squares and are low resolution. Has anyone else seen this? Is this a bug, or is it as expected? This unfortunately won't work for us if it is expected and I'll have to try and find something else.