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Use PDFGen wrapper for Pyppeteer to create PDF files in Django. Support for async generation in Django Channels worker or with Django 3.1 async views.

cd demo
make worker
make start

Read more about tunnels below

s More about generating PDF in channels with Websocket support.

More about generating PDF in async view

Chromium cannot visit https without valid certificate without a lot of steps. You should tunnnel your dev server:

ngrok http 8000

Now add ngrok url to ALLOWED_HOSTS

Chromium will not visit https://localhost:8000, so run

brew install stunnel

Add ssl_proxy file

pid=
cert=/usr/local/etc/stunnel/stunnel.pem
foreground=yes
debug=7

[https]
accept=8000
connect=8001
TIMEOUTclose=1

Start

sudo stunnel ssl_proxy

For MacOSX:

 brew install poppler ghostscript

For Ubuntu / Debian:

 apt-get install poppler ghostscript

A PDF/A document is just a PDF document that uses a specific subset of PDF that is designed to ensure it is 'self-contained'. It's not permitted to be reliant on information from external sources (e.g. font programs and hyperlinks).

From wikipedia:

Other key elements to PDF/A compatibility include:

• Audio and video content are forbidden.
• JavaScript and executable file launches are forbidden.
• All fonts must be embedded and also must be legally embeddable for unlimited, universal rendering. This also applies to the so-called
  PostScript standard fonts such as Times or Helvetica.
• Colorspaces specified in a device-independent manner.
• Encryption is disallowed.
• Use of standards-based metadata is mandated.

Yes.

• PDFGen-Python
• Pyppeteer