You can resize an object proportionally, to make it larger or smaller without changing its essential shape, or freely, to modify its proportions any way you like. You can rotate any object except a table or chart, and you can flip images.
Tap to select an object or group of objects.
If you don’t see blue dots around the object, the object is locked; you must unlock it before you can resize it.
Do one of the following:
Resize proportionally: Drag a corner selection handle diagonally.
Resize freely: Drag a blue dot on the top, bottom or sides (not a corner) of the object.
Resize from the center: Touch and hold a blue dot, touch and hold the middle of the object, then drag the blue dot.
Note: Images, movies, and most shapes can only be resized proportionally. If a group includes any of these objects, or a shape that has a green dot when selected, the group can only be resized proportionally.
You can quickly match the sizes of two objects on a page.
Tap the object you want to resize, then drag a blue dot to begin resizing.
As you drag, touch and hold another object whose size you want to match.
When the words Match Size appear, lift both your fingers at the same time.
Tap the object, place two fingers on it, then turn your hand in the direction you want to rotate the object.
After you start the rotation, you can continue by dragging with a single finger. A guide appears to indicate the angle of rotation.
Tap an image, then tap 
.
Tap Arrange, then tap Flip Vertically or Flip Horizontally.