If you want to make an artboard transparent in Illustrator, there are a few different ways to do it. One way is to use the Transparency panel. To open the Transparency panel, go to Window > Transparency. To make an artboard transparent, select the artboard and click on the Transparency button (the three lines in the top left corner of the Transparency panel). You can also use the keyboard shortcut: Ctrl+T (Windows) or Cmd+T (Mac). If you want to make all artboards on a page transparent, you can use the Group command (Window > Group). To group all artboards on a page, select them all and click on the Group button (the three lines in the top left corner of the Group window). ..
