I want to add a metadata key-value pair to the metadata of a pdf file.
I found a several years old answer, but I think this is way to complicated. I guess there is an easier way today: https://stackoverflow.com/a/3257340/633961
I am not married with pypdf2, if there is an easier way, then I go this way?
I was surprised to see there is no code sample for PyPDF2 when the questions is explicitly asking for PyPDF2, so here it is:
from PyPDF2 import PdfFileReader, PdfFileWriter
fin = open('source.pdf', 'rb')
reader = PdfFileReader(fin)
writer = PdfFileWriter()
writer.appendPagesFromReader(reader)
metadata = reader.getDocumentInfo()
writer.addMetadata(metadata)
# Write your custom metadata here:
writer.addMetadata({
'/Some': 'Example'
})
fout = open('result.pdf', 'wb')
writer.write(fout)
fin.close()
fout.close()