django-endesive 0.2.0

Django endesive PDF digital signing utility.

Django endesive PDF digital signing utility. This package allows you to digitally sign a PDF document from your Django application. It is based on https://github.com/m32/endesive

In order to digitally sign your pdf documents you will need a valid p12 / pfx certificate. You can use a self-signed certificate for testing purposes but you should aquire a certificate from a Certificate Authority for production.

Special PDF certificates issued by partners on the AATL (Adobe Approved Trust List).

Documentation

The full documentation is at https://django-endesive.readthedocs.io.

Quickstart

Install Django Endesive:

pip install django-endesive

Add it to your INSTALLED_APPS:

INSTALLED_APPS = (
    ...
    'django_endesive.apps.DjangoEndesiveConfig',
    ...
)

Add the following to your setup to your settings.py file:

DJANGO_ENDESIVE = {
    'PDF_CERTIFICATE_PATH': 'required: /path/to/your/certificate',
    'PDF_CERTIFICATE_PASSWORD': 'optional: certificate password if applicable',
    'PDF_ATTRIBUTES': {
        'CONTACT': 'optional: <[e-mail]>',
        'LOCATION': 'optional: <your location>',
        'REASON': 'optional: <Reason for Document validation>'
    }
}

Here is a rather contrived example of how you would sign your pdf:

from django_endesive import pdf
from endesive.pdf import fpdf

# Generate a pdf file (this could be any file already generated by your app)
doc = fpdf.FPDF()
doc.add_page()
doc.set_font('helvetica', '', 13.0)
doc.cell(w=75.0, h=22.0, align='C',
              txt='Hello, world page=1.', border=0, ln=0)
doc.output('./pdf.pdf', "F")

# Open file and feed bytes to the sign function
pdf_bytes = open('./pdf.pdf', 'rb').read()

signed_pdf = pdf.sign(pdf_bytes=pdf_bytes)

# signed_pdf bytes can now be written to a bytestream in memory or saved to a file on disk

Running Tests

Does the code actually work?

source <YOURVIRTUALENV>/bin/activate
(myenv) $ pip install tox
(myenv) $ tox

Credits

Tools used in rendering this package:

• Cookiecutter
• cookiecutter-djangopackage
• Endesive

Author

• This project was created by Lance Moore from Engineer ROI.

History

0.1.0 (2018-12-04)

• First release on PyPI.

0.2.0 (2019-12-24)

• All certificates passphrases are now bytes (As per deprecation warning).
• Added support and tests to include Django 2.1 - 3.0
• Added support and tests to include Python 3.7 - 3.8
• PEP8 formatting errors