The PNG writer in matplotlib doesn't support writing of extended
metadata. However, it may be less useful anyway, as while you can put
arbitrary key/value pairs in a PNG file, I don't believe there's any
standards for what the keys should be, so there aren't many tools that
use it. (If I'm ju
Thanks for your help concerning the pdf files! It was exactly what I was
looking for. Is there anything similar for png-files?
> Marius Jan Klein writes:
>
>> I want to edit the metadata of pdf- or png-files when creating one of
>> these files. I do not want to use for example Pypdf because th
