To view the image information such as the original filename, file size or the resolution (width x height) of an image you can follow the instructions below.
1. Navigate to the Library > Galleries area.
2. Use the View Gallery icon (eye icon) or double click on the gallery to navigate to your images. These icons appear when the mouse is on top of a gallery.
3. Click on the Edit icon (pencil) that appears when hovering over the image with your mouse or double click on the image.
4. Scroll down and click to expand the Properties section title.
This will reveal the original filename, file size as well as resolution (width x height), the image was uploaded.