Adding metadata Leave feedback

Adding metadata properties is one of the most powerful features of the GroupDocs.Metadata search engine. When you call the add_properties method, it examines all available metadata packages and tries to pick up a known property that satisfies the specified predicate. Note that a property is added only to packages that fit the following criteria:

1. Only existing metadata packages are affected. No new packages are created during this operation.
2. There must be a known metadata property that fits the search condition but is actually missing from the package. The properties supported by a package are usually defined in the specification of the corresponding metadata standard.

from datetime import datetime

from groupdocs.metadata import Metadata
from groupdocs.metadata.common import PropertyValue
from groupdocs.metadata.tagging import Tags


def adding_metadata():
    with Metadata("input.docx") as metadata:
        # Add the "last printed" date wherever it is a known but missing property
        property_value = PropertyValue(datetime.now())
        affected = metadata.add_properties(
            lambda p: Tags.time.printed in list(p.tags), property_value
        )
        print(f"Affected properties: {affected}")
        metadata.save("output.docx")


if __name__ == "__main__":
    adding_metadata()

Binary file (DOCX, 14 KB)

To learn more about library features and get familiar how to manage metadata and more, please refer to the advanced usage section.

You may easily run the code above and see the feature in action in our GitHub examples:

• GroupDocs.Metadata for Python via .NET examples

You are welcome to view and edit metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images and more with our free online Free Online Document Metadata Viewing and Editing App.