PdfRootPackage class

Represents the root package allowing working with metadata in a PDF document.

Inheritance: PdfRootPackage → RootMetadataPackage → MetadataPackage

The PdfRootPackage type exposes the following members:

Property	Description
metadata_type	Gets the metadata type.
keys	Gets a collection of the metadata property names.
property_descriptors	Gets a collection of descriptors that contain information about properties accessible through the GroupDocs.Metadata search engine.
count	Gets the number of metadata properties.
file_type	Gets the file type metadata package.
inspection_package	Gets a metadata package containing inspection results for the document. The package contains information about document parts that can be considered as metadata in some cases.
document_statistics	Gets the document statistics package.
xmp_package	Gets or sets the XMP metadata package.
document_properties

Method	Description
contains	Determines whether the package contains a metadata property with the specified name.
find_properties	Finds the metadata properties satisfying a specification. The search is recursive so it affects all nested packages as well.
update_properties	Updates known metadata properties satisfying a specification. The operation is recursive so it affects all nested packages as well.
remove_properties	Removes metadata properties satisfying a specification.
add_properties	Adds known metadata properties satisfying the specification. The operation is recursive so it affects all nested packages as well.
set_properties	Sets known metadata properties satisfying the specification. The operation is recursive so it affects all nested packages as well. This method is a combination of `MetadataPackage.add_properties` and `MetadataPackage.update_properties`. If an existing property satisfies the specification its value is updated. If there is a known property missing in the package that satisfies the specification it is added to the package.
sanitize	Removes writable metadata properties from the package. The operation is recursive so it affects all nested packages as well.

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This code sample shows how to extract built-in metadata properties from a PDF document.