Module fpdf.sign

Module dedicated to document signature generation.

The contents of this module are internal to fpdf2, and not part of the public API. They may change at any time without prior warning or any deprecation period, in non-backward-compatible ways.

Functions

def sign_content(signer, buffer, key, cert, extra_certs, hashalgo, sign_time)

Perform PDF signing based on the content of the buffer, performing substitutions on it. The signing operation does not alter the buffer size

Classes

class Signature (contact_info=None, location=None, m=None, reason=None)

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class Signature:
    def __init__(self, contact_info=None, location=None, m=None, reason=None):
        self.type = Name("Sig")
        self.filter = Name("Adobe.PPKLite")
        self.sub_filter = Name("adbe.pkcs7.detached")
        self.contact_info = contact_info
        "Information provided by the signer to enable a recipient to contact the signer to verify the signature"
        self.location = location
        "The CPU host name or physical location of the signing"
        self.m = m
        "The time of signing"
        self.reason = reason
        "The reason for the signing"
        self.byte_range = _SIGNATURE_BYTERANGE_PLACEHOLDER
        self.contents = "<" + _SIGNATURE_CONTENTS_PLACEHOLDER + ">"

    def serialize(self, _security_handler=None, _obj_id=None):
        obj_dict = build_obj_dict(
            {key: getattr(self, key) for key in dir(self)},
            _security_handler=_security_handler,
            _obj_id=_obj_id,
        )
        return pdf_dict(obj_dict)

Instance variables

var contact_info

Information provided by the signer to enable a recipient to contact the signer to verify the signature

var location

The CPU host name or physical location of the signing

var m

The time of signing

var reason

The reason for the signing

Methods

def serialize(self)