XmpMetadataHandler

Vue de l’ensemble

‘XmpMetadataHandler’ est une classe dans Aspose.PDF FOSS pour Java.

Il lit et écrit des paquets de métadonnées XMP pour la conformité PDF/A.

Cette classe fournit 9 méthodes pour travailler avec XmpMetadataHandler objets dans les programmes Java. Les méthodologies disponibles comprennent: buildXmpPacket, createXMPBytes , ‘getAllProperties;getPdfAConformance; getPdFAPart : 'getsProperty: ‘hasPddAId. pdfDateToXpDat . readFromCatalogTous les membres publics sont accessibles à toute application Java après l'installation de l’Aspose.PDF FOSS pour le package Java . Propriétés :allPropertys et pdfACconformance‘ : PDFAPART

Propriétés

Name	Type	Access	Description
`allProperties`	`Map<String, String>`	Read	Returns an unmodifiable map of all parsed properties.
`pdfAPart`	`int`	Read	Returns the PDF/A part number from the XMP metadata, or 0 if not present.
`pdfAConformance`	`String`	Read	Returns the PDF/A conformance level from the XMP metadata, or {@code null} if not present.

méthodes

Signature	Description
`readFromCatalog(catalog: PdfDictionary)` → `XmpMetadataHandler`	Reads XMP metadata from a PDF catalog dictionary.
`createXmpBytes(properties: Map<String, String>, pdfaPart: int, pdfaConformance: String)` → `byte[]`	Creates an XMP metadata byte array suitable for embedding in a PDF stream.
`getProperty(namespace: String, name: String)` → `String`	Returns a property value by namespace URI and local name.
`getAllProperties()` → `Map<String, String>`	Returns an unmodifiable map of all parsed properties.
`hasPdfAId()` → `boolean`	Returns {@code true} if the XMP metadata contains a {@code pdfaid:part} property.
`getPdfAPart()` → `int`	Returns the PDF/A part number from the XMP metadata, or 0 if not present.
`getPdfAConformance()` → `String`	Returns the PDF/A conformance level from the XMP metadata, or {@code null} if not present.
`pdfDateToXmpDate(pdfDate: String)` → `String`	Converts a PDF date string to XMP date format.
`buildXmpPacket(dcTitle: String, dcCreator: String, dcDescription: String, pdfKeywords: String, xmpCreatorTool: String, pdfProducer: String, xmpCreateDate: String, xmpModifyDate: String, pdfaPart: int, pdfaConformance: String)` → `byte[]`	Builds a complete XMP packet with all standard namespaces for PDF/A compliance.

Voir aussi

Aspose.PDF pour Java — API d’entreprise