What is a Photoshop plugin?
The term plugin (or plug-in) means an additional program, which works under another program (host) and enhances the host’s capabilities. Sometimes the plug-in is called an add-on. Photoshop plugin (or Photoshop plug-in) is the most commonly used definition for a filter plug-in (8bf) for Adobe Photoshop and compatible hosts such as Adobe Photoshop Elements, Adobe Image Ready, Adobe Fireworks (formerly Macromedia Fireworks), Corel Paint Shop Pro, Corel Photo-Paint, Ulead PhotoImpact, etc. Sometimes Photoshop plugin is also called a Photoshop filter.