Metadata is information about the image such as the creation date, width, height, copyright info, etc.  Adobe Bridge even displays Camera-specific EXIF information. Metadata is located in the lower left hand corner of the bridge window.

Metadata can be searched for keywords, colors, image resolution, and much more.  Once common batch task is to attached Metadata to a series of images.  The SHIFT key will select consecutive items, the COMMAND (MAC) or CONTROL (PC) key will select non-adjacent items.  Using the ITPC section of the Metadata pane, you can now attach up to 30 fields of custom Metadata.

Metadata plays an important role in search engine optimization (SEO) because it helps to describe the image/photo to search engines, which in turns will help the search engine categorize the content of the page.

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