ADOBE PHOTOSHOP PEN TOOL
Adobe Photoshop pen tool is used for drawing paths. It is the tool used by Beta-pix Team to clip their images accurately. It has a number of options for adding and deleting points, creating curved paths, and other more complex operations. In clipping images, adobe Photoshop pen tool is one of the most important tools. It is very powerful and flexible tool. It is used to create "paths." Paths have many uses, including filling, stroking and what we will use it for, selecting. Paths give us control, which can sometimes be difficult when selecting pixels using the other tools.
   
Once you draw a path, it appears in the Paths palette, usually as "Work path." It's a good idea to give each path a name by double clicking on the palette item and typing in a name. This keeps your paths separate and lets you know which path you are dealing with.
    
Adobe Photoshop pen tool has different options to use, such as; basic pen tool, magnetic pen tool, freehand pen tool, add anchor point tool, delete anchor point, direct selection tool and convert point tool.