Due to work flow optimization guys at Adobe decided to hide some of the filters in Photoshop CS6, if you are missing some of them, you can easily make the visible again.
In Photoshop CS6, the new version of Photoshop, you can use special cropping tool and you are done, but that doesn't mean you cannot achieve the same result with older versions.
Adobe Photoshop CC has just released a major update with some new killer features. Perspective Warp Tool is one of them, let me show you what you can do with it.
If you don't want others to use your photos and images without your permission, you can create a so called custom watermark with your name or any other text you want.