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What is XMP Metadata?

Extensible Metadata Platform metadata is an XML- and RDF-based framework describing assets through fields such as creator, rights, keywords, ratings, and editing history. XMP may be embedded in supported files or stored in sidecars.

How XMP Metadata works

XMP represents statements about an asset as RDF properties grouped into XML namespaces, allowing common and application-specific schemas to coexist. A tool may serialize the packet inside a supported container or beside the asset when embedding is unavailable or undesirable. During ingest, editing, conversion, and archive transfer, systems reconcile XMP with native metadata blocks and preserve identifiers so the descriptive record continues to follow the correct media.

Key facts

  1. An XMP sidecar is a separate file whose association commonly depends on location and basename; renaming or moving only the media can leave current edits and rights data behind.
  2. XMP can coexist with EXIF or IPTC fields that express similar concepts. Applications use different reconciliation rules, so conflicting creator, date, or rights values can resurface.
  3. Namespaces allow private properties without changing the core model, but a rewriting tool that does not preserve unknown namespaces can silently discard another system’s workflow data.

When XMP Metadata matters

Reading and writing XMP can preserve attribution, rights, and workflow information across media tools. Unsupported fields or separated sidecar files may cause metadata to disappear during transfer or conversion.

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