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In this exercise, I am going to show you few common ways to zoom inside of Photoshop, both from the keyboard and using the Zoom tool. Now when you first open an image, such as Dark portrait.jpg, Photoshop goes ahead and zooms you out so that you can take in the entire image at a time. And it zooms you out to one of its predefined increments, which means you're very likely to see an awful lot of drab gray pasteboard around the image, which of course is unconscionable waste of precious screen real estate. So pretty much the first thing you do after opening an image is zoom in on it to magnify it.
Now notice that Photoshop tells us the zoom ratio in the tab. So we can see it's 16.7%. We also see it's slightly more accurately represented down here in the lower left corner of the Image Window, plus, you see it up in the Applications Bar. So Photoshop is very keen to tell you the zoom ratio. What it doesn't tell you is what that means. So 16.7% is one-sixth, which means that we are seeing one out of every six pixels horizontally and one out of every six pixels vertically, which is only one out of every 36 pixels inside the image.
So not only are we super far away from the image, and it's very small, but we're not seeing anything in the way of detail. So let's zoom in. Couple of different ways to approach it. One, if you have way too much time on your hands, and you love to wiggle your cursor around, you can go up to the View menu and choose the Zoom In command. And that will zoom you in one increment to the image. In this case, to 25%. But there's a much easier quicker way to work, which is to press Ctrl++ or Command++ on the Mac.
And notice I keep zooming in incrementally until I come to, let's say 100%. I don't have to stop there. But I am going to pause for a moment, because the 100% ratio is the most accurate zoom ratio in Photoshop, because Photoshop is devoting one screen pixel to every image pixel. Now granted, you can't see all of the image on screen at once, which is why you also need to know how to pan inside the image, as I will show you in a subsequent exercise. Now, you don't have to stop here. I could press Ctrl++ or Command++ to go to 200%, and then 300 and than 400 and in 500 and at 600, I will see the pixel grid, these white lines between the pixels.
The assumption being, as you grow the pixels more and more, it becomes difficult to see where one pixel ends and another pixel begins. So you have that pixel grid to let you know. If you don't want to see the pixel grid, you go up to the View menu and you choose Extras to turn it off. Or you can press Ctrl+H or Command+H for Hide. And that will hide the pixel grid momentarily. But it'll come back in a moment's notice. For example, I've got my Rectangular Marquee tool selected and if I drag inside the image to draw a rectangular selection like that, then suddenly the pixel grid comes back, because that Extras Command controls a bunch of different screen elements, including Selection Outlines.
Anyway, you can also get rid of the pixel grid of course by zooming out. And it'll ultimately disappear at 500%. You may wonder how in the world am I zooming out. Well of course, if Ctrl++ or Command++ zooms me in, then Ctrl+- or Command+- is going to zoom me out, once again incrementally. Now at some point, you may tire of the fact that you're always centering the zoom, which is what happens when you use those keyboard shortcuts. And you may want to zoom in on a specific detail inside the image, in which case you want to take up this tool, the Zoom tool.
But you don't have to select it manually from the toolbox. You can get it from the keyboard. Now, there is a couple a different keyboard shortcuts. One's old school and it has the advantage of being consistent across the other Adobe applications. And one is easier to remember and just works inside of Photoshop. So we'll start with the old-school one. You press and hold Ctrl and Spacebar at the same time or Command and Spacebar on the Mac, and then you click to zoom in with those two keys down. As I said, that keyboard shortcut works in Illustrator, InDesign, the other Adobe Applications.
If you want to zoom out, you press and hold Alt+Spacebar or Option+Spacebar on the Mac and click. Now, the thing to watch out for, with any of those Alt key tricks, is Windows will sometimes misinterpret pressing the Alt key as your desire to go after the menus from the keyboard. So if your computer beeps at you or gives you a hard time, you can do one of two things. You can press Spacebar and then Alt, like so, or you can press Ctrl+Alt+Spacebar, and both of those techniques will get you the Zoom Out tool.
Now, that's only a Windows thing. Macintosh users don't have to worry about it. Better perhaps though to take advantage of the new and improved keyboard shortcut that came along with Photoshop CS4. And that is just pressing and holding the Z key. So press and hold Z and click to zoom in. And keep on clicking to zoom in on this mark right here. I am not sure if it's a beauty mark or if it's a blemish. Need to zoom to figure that out. If you want to zoom out as opposed to in, go ahead and press that Z key again, and add Alt here on the PC or Option on the Mac and click to zoom out.
And then when you release the Z key, you'll return to your previously selected tool. All right, so those are the common ways to zoom inside of Photoshop. In the next exercise I'm going to share with you a new and decidedly uncommon way to zoom inside Photoshop CS5.
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