There are two ways to change the size of a gallery as a whole (Click here to learn how to change the size of individual gallery items).
The first way is to use the scaling mode:
1 . Select the gallery that you want to work on.
2. Click the Scale button in the settings panel.
3. In scaling mode use either the preset buttons in the settings panel or the scale too to re-size the gallery.
The second way is to use the sizing controls on the Galleries Frame or the Sizing controls in the Style Toolbar:
Note that if you have the scale to frame option checked the gallery items will change in size to fit their frame, but if it is unchecked they will not.
