An image is a picture that has been created or copied and stored in electronic form. Common formats that are supported online include JPEG, GIF, BMP ...
Raster graphics are digital images created or captured (for example, by scanning in a photo) as a set of samples of a given space.
In file management, a binder is a software utility that combines two or more files into a single file.
A metafile is a file containing information that describes or specifies another file.
UTF-16 (16- bit Unicode Transformation Format) is a standard method of encoding Unicode character data.