ByCyberLink Learning Center
When taking photos of tall buildings, they can look as if they're leaning backwards. This is a perspective problem known as the "keystone effect” and sometimes it can be very distracting.
With PhotoDirector you can easily fix common distortions to make objects appear flat on the horizon.
In the Adjustment module, you will find the Keystone tool under Global Adjustment Tools. I bring the vertical perspective to -35. If you photo needs to be adjusted horizontally, slide the horizontal perspective tool until you reach a preferred angle.
With Auto Keystone, simply click on the magic wand icon to correct any distorted perspectives in your photos. .
Here is the before and after photos: