Home » Tip of The Day » Fill The Entire Available Space In The Document WindowFill The Entire Available Space In The Document Window April 17, 2016. Posted in: Tip Of The Day. You can double-click on the Hand tool in the Tools panel to make your image fill the entire available space in the document window. « Previous Photoshop Tip: | Next Photoshop Tip: » Sign-up for the PTC Newsletter so that you'll never miss a tutorial!. Your Email Address: