Extensible metadata platform

The Extensible Metadata Platform or XMP is a specific type of extensible markup language used in PDF, photography and photo editing applications. It was first introduced by Adobe Systems in April 2001 as part of version 5.

XMP (Extensible Metadata Platform)
Developed by Adobe Systems, the Extensible Metadata Platform is an open standard for processing and safely embedding metadata in a wide range of file formats.

These are small text files written in an open XML-based standard called XMP (eXtensible Metadata Platform). The files are saved in the same directory and with the same name as each edited image, but with the .xmp suffix.

XMP - An abbreviation for Extensible Metadata Platform a specific type of extensible markup language used to store metadata in digital photos. XMP was introduced by Adobe in 2001.

XMP In recent years, XMP (Extensible Metadata Platform) has taken over as the defacto standard format for embedding ITPC data / metadata into an image file. Find out more.

If you wish the metadata changes to be written to XMP (Extensible Metadata Platform) then go to Edit > Catalog Settings and select Automatically Write Changes Into XMP. This way the changes made in Lightroom will be recognized by other applications.

If you want to share the edits along with the image, programs such as Aperture and Lightroom use Adobe's Extensible Metadata Platform (XMP) to embed editing metadata into the image file itself or in a separate "sidecar" file with the same filename ...

See also: Format, Image, Photograph, Data, Editing