Each layer has all of the properties of a separate image. A layer can be moved, copied, edited, etc. Layers are normally ordered but can be reordered to compose different views. They can also be collapsed or flattened to create a simpler image plane. Managing layers makes creating text effects a snap.
Web pages require special image file formats for inline graphics.
GIF, JPEG, and PNG are the most common types. In this activity, you will convert a text banner to the GIF format. The text banner is irregularly shaped, so we must do something to blend it better with the intended background of the page. The image file format GIF89a can be employed to mask the outer edges of the text so that it blends more naturally with the background of a Web page. Transparent GIFs are used often on Web pages for photos, graphic text, and icons.