Need a little help here please. Took an image of a building for my son to use in a brochure. Because of the cramped positioning, I was unable to shoot with a level camera and the image tilts back and inward. I tried crop fix and other perspective fixes in PS, but was unable to "straighten" the vertical lines on the outer edges of the building. Any special tricks to rectify this severe keystoning? Anyone good with the Free Transform tool?