Background image

I want to use a custom image from my library. What should the file specifications for that file be?....I attached image of the pics I am presently experimenting with.

Any image file, including GIFs, can be uploaded as background image. However, please note that, image file size is a matter about page loading speed regarding to your form submitters' internet connection speed.

To upload background image, you may follow the steps shown below.

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