Zooming

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Zooming means to move "closer to" or "farther from" the drawing space, viewing the drawing at a greater or smaller level of detail.
You can always check the current zoom percentage via the zoom indicator, located, by default, at the lower right corner of the screen.

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Hotkey: Shift+Backspace
                     
Only available in Paper Space, displays the entire drawing sheet. The drawing sheet may consist of multiple printer paper sheets, indicated by dashed lines.

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Note: Zoom diagnostic message appears when the user tries to zoom in or zoom out beyond the maximum zoom factor or limit.

Image Added 

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Zoom Selection

Hotkey: Alt+Backspace
                     
Zooms to an area that completely contains all currently selected objects.

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Tip: You can also use the Design Director to quickly zoom on an object or group of objects. For a single object, see Design Director-Graphics. For a group of objects, see Design Director-Categories.

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Printed Size

                   
Zooms at approximately the size the drawing will be when printed. In this view, one inch of screen space is approximately equal to one inch on paper. The exact ratio of screen space to Paper Space will vary, depending on your graphics display and screen resolution.

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