Home » Tip of The Day » Zoom All Documents At The Same TimeZoom All Documents At The Same Time July 3, 2015. Posted in: Tip Of The Day. With the Zoom tool selected, check Zoom All Windows in the Options bar, and you will zoom all open documents at the same time. Or you could simply use the Shift key to temporarily toggle on and off the Zoom all Windows feature while zooming. « Previous Photoshop Tip: | Next Photoshop Tip: » Sign-up for the PTC Newsletter so that you'll never miss a tutorial!. Your Email Address: