Scrolling

With the new “OpenGL” technology that is built into Photoshop CS4, scrolling and zooming is a lot quicker and a lot more fun.
To enjoy the benefits of “OpenGL”, the graphic card in your computer must support this technology and the operating system that runs on your PC also must support this technology.
I cannot see which graphics card your computer has. But what you can do is go to the “Performance” in the “Preferences” (see lesson 4) and see if this technology is supported by your graphics card. If this is not the case, this option is grayed out.
Regarding the second requirement, the Operating System from Windows Vista or later, this technology is supported.
Now that you know what you need to use this new technology, we continue with the lesson.
To move the image in the image window, we can use the scroll bars on the right side and bottom of the window.

We also use the “Hand” tool.

What’s new in Photoshop CS4 and using the OpenGL technology is that, you can “throw away” the picture.

When you start with the “Hand” tool and click on the picture, hold the mouse button, move the mouse quickly left, right, top or bottom and release the mouse button.

You will see that the image itself moves on.

The faster you move the mouse, the faster the picture will move.

Now you may say, “How is that more fun than what I have here”?

Now if your picture is very large in size, I mean, you can navigate from one side of the picture to the other in a relatively simple way.

TIP 1:

To quickly switch between the tools with which you’re working and with the “Hand” tool, hold the spacebar on your keyboard pressed.  Do not let this go, then the last selected tool is active again.

TIP 2:

When you open multiple photos, and you want to navigate them all together, hold the “Shift Key” plus the “Spacebar” on your keyboard while you move the mouse pointer.

Another way to scroll in your image is by using your scroll wheel on your mouse.
Scroll with the wheel upwards, the picture in the window moves up. Scroll with the scroll wheel down, then the picture moves down.
Hold the Ctrl key on your keyboard while you scroll, it moves the picture left or right.
If you have the Shift key also pressed, it moves by larger distances.
Hold down the Alt key on your keyboard pressed, then you can use the mouse wheel to zoom in and out.

The later can also be changed in the “Preferences” window “General” tab.
If you set the option “Zoom with scroll wheel”, above actions will be reversed.
So, ‘just scroll’ will zoom in and out, scrolling plus Alt will move the image up or down. Ctrl + Alt will move the picture left or right.

Zoom

you all know that we have the “Zoom” tool to zoom in our pictures. If this is not the case, select the “Zoom” tool in the tool bar and click on the picture (the cursor changes to a circle with the plus sign).

If you want to zoom out, hold the Alt key on your keyboard pressed while clicking in the picture (the cursor changes into a circle with a minus sign).

New in Photoshop CS4, when the mouse is pressed, the picture will continue to “zoom in”. Or “zoom out”, of course, depending on whether you hold the Alt key pressed or not.

New in CS4 when you are zoomed into a larger size, as in this example 25.3%, the image will still be of excellent quality.

The zoom value is displayed at the bottom left of the photo in the zoom box, and in the top left of the photo tab, type a value in this “zoom box” and click the Enter key on your keyboard, your image is zoomed in to this value.
If you work quickly with shortcuts, click Ctrl + buttons on your keyboard to zoom in and Ctrl – to zoom out.
If you keep pressing these keystrokes, the image will continue to be in or out.
If you want to see the full image click the shortcut Ctrl 0 on your keyboard.
If you want to see the picture at 100%, click the shortcut Ctrl Alt 0
If you want to zoom in centered at the point in the image where you click, then select the option “Zoom clicked point to centre” under the “General” tab in the window “Preferences”. But I think you figured that by yourself.

TIP 1:

double-clicking the “Hand” tool will display the full picture.

TIP 2:

double-clicking the “Zoom” tool, it will show the picture in its real pixel size.

TIP 3:

To quickly switch between the tools with which you’re working with the “Zoom” tool, hold the z key on your keyboard pressed. Hold down the Alt key also pressed and then zoom out. Release the z key, then the last selected tool will be active again.

TIP 4:

In earlier versions of Photoshop, there was a difference between zooming with the keys on your keyboard and the zoom tool, this is not so anymore. In previous versions it was a fact that when the zoom tool wasused, only the picture was zoomed and not the window. The window in which the picture resides is still in its dimensions. And when you press Ctrl + , the photo and the window in which it resides, both were adapted.  In Photoshop CS4 this is not the case anymore, it’s either one or the other. You set this in the Preferences window, “General” tab, and that’s it. In both of these methods, zoom will be carried out in the same way, ie with or without the adaptation of the window.  But there is a way to get around this. First requirement is that you make sure that the “Zoom Resizes Windows” in “General” tab is NOT selected.  If you still want the window to increase or decrease wth the zoom in or zoom out, click the Ctrl + Alt or Ctrl – Alt.

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