If you need to rotate objects or images, you can easily do so and get just the look you want.
Select and drag using the green rotation handle.
rotating a picture by dragging
Hold down the Shift key as you drag, to rotate in 15-degree increments.
Hold down the Ctrl key as you drag, to rotate around the bottom middle handle, instead of the top one.
On the Drawing toolbar, choose Draw > Rotate and choose Rotate Left 90° or Rotate Right 90°. Or, you can use the Picture toolbar to rotate left 90°.
Double-click to open the Format AutoShape dialog box. On the Size tab, enter a rotation value in the Rotation text box. Click Preview to see the result before clicking OK.
rotating a picture by using the toolbar
Note: Some of these tips are from my book, How to Do Everything with PowerPoint 2003. Others are from Cutting Edge PowerPoint For Dummies, by Geetesh Bajaj.