JPEG Metadata Format
JPEG metadata summarizes the content and information of a JPEG file. That might include anything from copyright details and serial numbers, to comments and descriptions about the image itself. JPEG metadata comes in several formats, each useful in different situations. You can view JPEG metadata by right-clicking on a JPEG file and selecting Properties, then Details.
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JPEG
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JPEG stands for Joint Photographic Experts Group -- the name of the organization that created the file format, and the name of the file itself. JPEGs are used to store digital images, often photographs, and complex graphics files. Small web icons, borders, backgrounds or similar images are usually saved as .GIF, .PNG or similar files. JPEG metadata can be stored in three main types of file: EXIF, IPTC-IIM and XMP.
EXIF
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Like other forms of JPEG metadata, EXIF files embed the information within the JPEG itself. EXIF stands for Exchangeable Image File Format. EXIF is the most common format for standard digital still cameras, according to Oracle. The metadata fields in an EXIF file include copyright, creator, description and the date/time of image creation.
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IPTC-IIM and XMP
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IPTC-IIM stands for International Press Telecommunications Council-Information Interchange Model. This format is most often used for news agencies and media companies. It contains information tags for when, where and who took the photo -- useful details for news agencies. XMP JPEG metadata formats refer to the Extensible Metadata Platform. This is Adobe's own format for storing metadata and applies to images created using software such as Adobe Illustrator. However, some non-Adobe software does not support the XMP format and can't read the metadata contained.
Uses
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Metadata offers image creators a chance to include many details not found by simply looking at the image itself. It helps you to organize files and include important details. For example, the metadata description of a shot of the Grand Canyon might say "Janet and Tim: 2011 Honeymoon" or similarly descriptive details. JPEG metadata is also useful if you're a professional photographer and want to protect the copyright of your images.
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