Explanation

Creating XMP metadata currently requires knowing the corresponding minimal structure. To improve the experience, we should provide a classmethod on the XmpInformation class and a short documentation for how to add such metadata.

Code Example

from pypdf import PdfReader, PdfWriter
from pypdf.xmp import XmpInformation

xmp_information: XmpInformation = XmpInformation.create()
writer = PdfWriter(clone_from="file.pdf")
writer.xmp_metadata = xmp_information
writer.write("output.pdf")