PDF Signature

[johnnynunez]

Well, I had this problem #1333 so thank you.
But my question is, if I can sign a PDF, loading and no creating new one. I mean
In the tutorial you have to create for example a PDF and sign it, but is it possible for example, take a ready pdf like for example an reportlab pdf or any PDF and sign it?
https://py-pdf.github.io/fpdf2/Signing.html

https://www.reportlab.com/

Example in web:

pdf = FPDF()
pdf.add_page()
pdf.sign_pkcs12("certs.p12", password=b"1234")
pdf.output("signed_doc.pdf")

[Lucas-C]

Hi @johnnynunez

No, fpdf2 does not support signing existing PDF documents.

You should have a look at PyHanko for this: https://pyhanko.readthedocs.io