XMP
From Just Solve the File Format Problem
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* In a [[TIFF]] file, tag 700 is used. | * In a [[TIFF]] file, tag 700 is used. | ||
| − | * In a [[JPEG]] file, an APP1 segment with identifier <nowiki>"http://ns.adobe.com/xap/1.0/"</nowiki> is used. | + | * In a [[JPEG]] file, an APP1 segment with identifier <nowiki>"http://ns.adobe.com/xap/1.0/"</nowiki> is used. Sometimes there are also APP1 segments with identifier <nowiki>"http://ns.adobe.com/xmp/extension/"</nowiki>. |
* In a [[PNG]] file, an iTXt chunk with keyword "XML:com.adobe.xmp" is used. | * In a [[PNG]] file, an iTXt chunk with keyword "XML:com.adobe.xmp" is used. | ||
* In a [[JPEG 2000]] file, XMP is stored in a "uuid" box with a particular ID. Apparently, it may also be stored in an "xml " box. | * In a [[JPEG 2000]] file, XMP is stored in a "uuid" box with a particular ID. Apparently, it may also be stored in an "xml " box. | ||
Revision as of 14:50, 10 December 2017
Extensible Metadata Platform (XMP) is a metadata standard that can be used with a variety of file formats. When stored in a file, it is usually represented in a text format based on XML.
Related formats
The XMP Specification (Part 3) defines how to embed XMP in some popular file formats.
- In a TIFF file, tag 700 is used.
- In a JPEG file, an APP1 segment with identifier "http://ns.adobe.com/xap/1.0/" is used. Sometimes there are also APP1 segments with identifier "http://ns.adobe.com/xmp/extension/".
- In a PNG file, an iTXt chunk with keyword "XML:com.adobe.xmp" is used.
- In a JPEG 2000 file, XMP is stored in a "uuid" box with a particular ID. Apparently, it may also be stored in an "xml " box.
Specifications
- XMP Specification Part 1: Data model, serialization, and core properties
- XMP Specification Part 2: Additional properties
- XMP Specification Part 3: Storage in files
