XmpInformation 类

class pypdf.xmp.XmpInformation(stream: ContentStream)

基类：PdfObject

An object that represents Extensible Metadata Platform (XMP) metadata. Usually accessed by xmp_metadata().

抛出:

PdfReadError -- if XML is invalid

write_to_stream(stream: IO[Any], encryption_key: None | str | bytes = None) → None

get_element(about_uri: str, namespace: str, name: str) → Iterator[Any]

get_nodes_in_namespace(about_uri: str, namespace: str) → Iterator[Any]

property dc_contributor: List[str] | None

Contributors to the resource (other than the authors).

An unsorted array of names.

property dc_coverage: Any | None

Text describing the extent or scope of the resource.

property dc_creator: List[Any] | None

A sorted array of names of the authors of the resource, listed in order of precedence.

property dc_date: List[Any] | None

A sorted array of dates (datetime.datetime instances) of significance to the resource.

The dates and times are in UTC.

property dc_description: Dict[Any, Any] | None

A language-keyed dictionary of textual descriptions of the content of the resource.

property dc_format: Any | None

The mime-type of the resource.

property dc_identifier: Any | None

Unique identifier of the resource.

property dc_language: List[str] | None

An unordered array specifying the languages used in the resource.

property dc_publisher: List[str] | None

An unordered array of publisher names.

property dc_relation: List[str] | None

An unordered array of text descriptions of relationships to other documents.

property dc_rights: Dict[Any, Any] | None

A language-keyed dictionary of textual descriptions of the rights the user has to this resource.

property dc_source: Any | None

Unique identifier of the work from which this resource was derived.

property dc_subject: List[str] | None

An unordered array of descriptive phrases or keywords that specify the topic of the content of the resource.

property dc_title: Dict[Any, Any] | None

A language-keyed dictionary of the title of the resource.

property dc_type: List[str] | None

An unordered array of textual descriptions of the document type.

property pdf_keywords: Any | None

An unformatted text string representing document keywords.

property pdf_pdfversion: Any | None

The PDF file version, for example 1.0 or 1.3.

property pdf_producer: Any | None

The name of the tool that created the PDF document.

property xmp_create_date: Any | None

The date and time the resource was originally created.

The date and time are returned as a UTC datetime.datetime object.

property xmp_modify_date: Any | None

The date and time the resource was last modified.

The date and time are returned as a UTC datetime.datetime object.

property xmp_metadata_date: Any | None

The date and time that any metadata for this resource was last changed.

The date and time are returned as a UTC datetime.datetime object.

property xmp_creator_tool: Any | None

The name of the first known tool used to create the resource.

property xmpmm_document_id: Any | None

The common identifier for all versions and renditions of this resource.

property xmpmm_instance_id: Any | None

An identifier for a specific incarnation of a document, updated each time a file is saved.

property custom_properties: Dict[Any, Any]

Retrieve custom metadata properties defined in the undocumented pdfx metadata schema.

返回:

A dictionary of key/value items for custom metadata properties.