Write PDF metadata with PikePDF API for Python

write-pdf-metadata-with-pikepdf-api-python.py

import pikepdf

# Load the PDF file
file_path = "example.pdf"
output_path = "updated_example.pdf"

with pikepdf.Pdf.open(file_path) as pdf:
    # Access the document metadata
    metadata = pdf.docinfo

    # Update metadata fields
    metadata["/Title"] = "Updated PDF Title"
    metadata["/Author"] = "Jane Doe"
    metadata["/Subject"] = "Metadata Update Example"
    metadata["/Keywords"] = "PDF, PikePDF, Metadata, Example"

    # Save the updated PDF to a new file
    pdf.save(output_path)

print("Metadata updated successfully!")