5.4. Zoom
Figure 14.175. The “Zoom” tool in Toolbox
The Zoom Tool is used to change the zoom level of your working image. If you only click on the image, the zoom is applied to the whole image. But you can also click-and-drag the mouse pointer to create a zoom rectangle. Then, the action of this rectangle is better understood if the “Allow window resizing” option is unchecked: you can see that the content of this rectangle will be enlarged or reduced so that its biggest dimension fit the corresponding dimension of the image window (if the biggest dimension of the rectangle is width, then it will fit the width of the image window).
5.4.1. Activating the Tool
You can get to the Zoom Tool from the image-menu through : Tools → Zoom,
or by clicking the tool icon: in Toolbox.
5.4.2. Key modifiers (Defaults)
Ctrl
Holding Ctrl when clicking on a point of your image will change the zoom direction from zooming in to zooming out.
Ctrl+Mouse wheel
Spinning the mouse wheel, while pressing Ctrl, varies the zoom level.
5.4.3. Options
Figure 14.176. Zoom tool options
Auto-resize window
This option will allow the canvas to be resized if the zoom level dictates it.
Tool Toggle
The two available tool toggles are used for changing the zoom direction between zooming in and zooming out.
5.4.4. Zoom menu
Using the Zoom tool is not the only way to zoom an image. The Zoom menu provides access to several functions for changing the image magnification level. For example, you can easily choose an exact magnification level from this menu.