A simple one-click way to automatically correct common perspective effects was introduced in version 6.
To apply perspective correction to your image, select the photo, and then the Perspective Correction tool.
The image on the left, taken inside a very large Basilica building in Rome, shows the common perspective effects of photos taken with a camera close to the ground. To get a 'straight on' photo would require it to be taken from a height of probably 30 feet. The perspective correction tool can create a similar effect automatically (right example).
Simply select the photo, and then the Perspective Correction tool. The process can take some time, depending on the resolution of the image.
Tip: The resulting corrected photo is in a raw BMP format which can take a lot of memory and so you are recommended to optimize your photo to be a JPEG format to reduce the memory and file size. Select the menu Utilities -> Optimize Photo...
Some examples of photos where the perspective has been corrected can be viewed below.
Looking for information on other photo tools?
Enhance tool | Clip | Clone | Magic erase | Photo Healing tool | Red eye | Content aware scale | Content aware zoom | Levels | Panorama | Perspective correction | Exif | Opacity masks | Photo hue | Color erase/ selection | Background Erase | Photo Effects | Shadow & Highlight controls