Extensible Metadata Platform (XMP) Specification - Adobe Partners

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3 XMP Storage Model Serializing XMP Here are the ambiguous RDF triples, notice that the two predicates are the same: Subject: bogus:example Predicate: bogus:namespaceship Object: "value of ns1:ship" Subject: bogus:example Predicate: bogus:namespaceship Object: "value of ns2:spaceship" 30 September 2005 XMP Specification
XMP Storage Model XMP Packet Wrapper 3 XMP Packet Wrapper The XMP Packet wrapper can enable the use of embedded XMP by software that does not understand the format of the file. The packet wrapper is not the sole aspect of embedding XMP in a file. The entire XMP packet must still be placed in the file as an appropriate component of the file’s structure. XMP Packets: ● may be embedded in a wide variety of binary and text formats, including native XML files. ● are delimited by easy-to-scan markers. Such markers are XML syntax-compatible to allow transmission to an XML parser without additional filtering. ● deal with arbitrary positioning within a byte stream (so as not to rely on machine word boundaries, and so on). ● enable in-place editing of metadata. ● allow multiple packets to be embedded in a single data file. Chapter 5, “Embedding XMP Metadata in Application Files”, gives information on how XMP Packets are embedded in specific file formats. Applications may also scan files for XMP Packets without knowledge of the file format itself, although this should be regarded as a last resort (see “Scanning Files for XMP Packets” on page 34). The following figure shows a schematic of an XMP Packet. It contains a header, XML data, padding, and a trailer. Header Serialized XMP Padding Trailer Here is an outline of an XMP Packet, showing the text of the header and trailer: ... the serialized XMP as described above: ... ... ... XML whitespace as padding ... Where ‘■’ represents the Unicode “zero width non-breaking space character” (U+FEFF) used as a byte-order marker. XMP Specification September 2005 31
Page 1 and 2: September XMP Specification 2005 AD
Page 3 and 4: Table of Contents Preface . . . . .
Page 5 and 6: Table of Contents PNG . . . . . . .
Page 7 and 8: Preface About This Document XMP (Ex
Page 9 and 10: Preface Changes in This Document -
Page 11 and 12: 1 Introduction What is Metadata Met
Page 13 and 14: 2 XMP Data Model This chapter descr
Page 15 and 16: XMP Data Model Property Values 2 An
Page 17 and 18: XMP Data Model Property Values 2 XM
Page 19 and 20: XMP Data Model Property Values 2 XM
Page 21 and 22: 3 XMP Storage Model This chapter de
Page 23 and 24: XMP Storage Model Serializing XMP 3
Page 29: XMP Storage Model Serializing XMP 3
Page 33 and 34: XMP Storage Model XMP Packet Wrappe
Page 35 and 36: XMP Storage Model XMP Packet Wrappe
Page 37 and 38: 4 XMP Schemas This chapter contains
Page 39 and 40: XMP Schemas Dublin Core Schema 4 Du
Page 41 and 42: XMP Schemas XMP Basic Schema 4 Prop
Page 43 and 44: XMP Schemas XMP Media Management Sc
Page 45 and 46: XMP Schemas XMP Media Management Sc
Page 47 and 48: XMP Schemas XMP Basic Job Ticket Sc
Page 49 and 50: XMP Schemas XMP Dynamic Media Schem
Page 55 and 56: XMP Schemas Photoshop Schema 4 Phot
Page 57 and 58: XMP Schemas Camera Raw Schema 4 Pro
Page 59 and 60: XMP Schemas EXIF Schemas 4 EXIF Sch
Page 61 and 62: XMP Schemas EXIF Schemas 4 Property
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Page 73 and 74: XMP Schemas EXIF Schemas 4 The XMP
Page 75 and 76: XMP Schemas Property Value Types 4
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XMP Schemas Property Value Types 4
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XMP Schemas Extensibility of Schema
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5 Embedding XMP Metadata in Applica
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Embedding XMP Metadata in Applicati
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Extensible Metadata Platform (XMP) Specification - Adobe Partners

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