This article will show you the steps to adding or changing photos for a sign in operator.blipbillboards.com.
Once you log into operator.blipbillboards.com, select the signs tab on the left hand side.
Select the sign you would like to add a photo for. On the right hand side you will see the sign name and details. If you scroll down you will see a section for photos. There is an 'Add photo' button. When you click that button you will be prompted to choose a photo from your device. Once you select and load that photo you are done.
You can remove it by clicking the red garbage can icon in the bottom right.