PDF Generate Plugin for MkDocs

This plugin will generate a single PDF file from your MkDocs repository. This plugin is inspired by MkDocs PDF Export Plugin.

Features

Cover and Table of Contents integrated in the PDF
Automatically numbers on heading(h1-h3).
Shift down sub-page headings level.
using WeasyPrint.

Samples

Requirements

This package requires MkDocs version 1.0 or higher (0.17 works as well)
Python 3.6 or higher
WeasyPrint depends on cairo, Pango and GDK-PixBuf which need to be installed separately. Please follow the installation instructions for your platform carefully:
- Linux
- MacOS
- Windows

How to use

Installation

Install the package with pip:
```
pip install mkdocs-with-pdf
```
Enable the plugin in your mkdocs.yml:
```
plugins:
    - with-pdf
```
More information about plugins in the MkDocs documentation.

Testing

When building your repository with mkdocs build, you should now see the following message at the end of your build output:

Converting 10 articles to PDF took 7.1s

Configuration

You may customize the plugin by passing options in mkdocs.yml:

plugins:
    - with-pdf:
        #author: WHO
        #copyright: ANY TEXT
        #
        #cover: false
        #back_cover: true
        #cover_title: TITLE TEXT
        #cover_subtitle: SUBTITLE TEXT
        #custom_template_path: TEMPLATES PATH
        #
        #toc_title: TOC TITLE TEXT
        #heading_shift: false
        #toc_level: 3
        #ordered_chapter_level: 2
        #excludes_children:
        #    - 'release-notes/:upgrading'
        #    - 'release-notes/:changelog'
        #
        #exclude_pages:
        #    - 'bugs/'
        #    - 'appendix/contribute/'
        #convert_iframe:
        #    - src: IFRAME SRC
        #      img: POSTER IMAGE URL
        #      text: ALTERNATE TEXT
        #    - src: ...
        #two_columns_level: 3
        #
        #render_js: true
        #headless_chrome_path: headless-chromium
        #
        #output_path: any-place/document.pdf
        #enabled_if_env: ENABLE_PDF_EXPORT
        #
        #debug_html: true
        #show_anchors: true
        #verbose: true

Options

for Properties

author

Set the author text.
default: use site_author in your project mkdocs.yml
copyright

Set the author text.
default: use copyright in your project mkdocs.yml

author and copyright values are drawn in Cover, and you can use '@page' content.

@page {
  @bottom-left {
    content: string(author) !important;
  }
  @bottom-right {
    content: string(copyright) !important;
  }
}

for Cover

cover

Set the value to false if you don't need a cover page.
default: true
back_cover

Set the value to true if you need a back cover page.
default: false
since: v0.8.0

You would be better to install the qrcode package:
```
pip install qrcode
```
cover_title

Set the title text in cover page.
default: use site_name in your project mkdocs.yml
cover_subtitle

Set the subtitle text in cover page.
default: None
cover_logo

Set the logo image in cover page. This value is URL or simply specify the relative path to the docs directory.
default: None
since: v0.8.0

for Heading and TOC

toc_title

Set the title text of Table of Content.
default: Table of Content
since: v0.4.0
heading_shift

Set this value to false, disable shift heading in child page.
default: true

In this flags enable, heading move down one level in child page.
toc_level

Set the level of Table of Content. This value is enabled in the range of from 1 to 3.
default: 3
ordered_chapter_level

Set the level of heading number addition. This value is enabled in the range of from 1 to 3.
default: 3
excludes_children

Set the page id of nav url. If the id matches in this list, it will be excluded from the heading number addition and table of contents.
default: []

for Page

exclude_pages

Set the page id of nav url. If the id matches in this list, it will be excluded page contents.
default: []
since: v0.3.0
convert_iframe

List of iframe to a conversions. Every iframe that matches a src in this list will be replace to a contains each img and/or text. it's using for such as embedded VIDEO.
default: []
since: v0.6.0

@see Sample of MkDocs Material
two_columns_level (Experimental)

Set the heading level of Two Column Layout. Currently only 0(disable) or 3 is valid for this value. So slow processing, but a little nice.

default: 0
since: v0.7.0

@see Sample of MkDocs Material

Renderer for JavaScript

render_js

Set the value to true if you're using 'MathJax', 'Twemoji' or any more.
Require "Chrome" which has "headless" mode.

default: false
since: v0.7.0
headless_chrome_path

Set the "Headless Chrome" program path.
If render_js is false, this value will be ignored.

default: chromium-browser

Check on your system:

$ <PROGRAM_PATH> --headless \
   --disable-gpu \
   --dump-dom \
   <ANY_SITE_URL(eg. 'https://google.com')>

... and more

output_path

This option allows you to use a different destination for the PDF file.
default: pdf/document.pdf
custom_template_path

The path where your custom cover.html and/or styles.scss are located. default: templates
since: v0.8.0
enabled_if_env

Setting this option will enable the build only if there is an environment variable set to 1. This is useful to disable building the PDF files during development, since it can take a long time to export all files.
default: None

PDF generation can take significantly longer than HTML generation which can slow down mkdocs's built-in dev-server.

Adding enabled_if_env: ENABLE_PDF_EXPORT under - with-pdf: disables PDF generation during development. Run the dev-server normally:
```
$ mkdocs serve
INFO    -  Browser Connected: http://127.0.0.1:8000/
INFO    -  Running task: builder (delay: None)
INFO    -  Building documentation...
WARNING -  without generate PDF(set environment variable ENABLE_PDF_EXPORT to 1 to enable)
... 2 seconds later ...
INFO    -  Reload 1 waiters: /.../index.md
```
and to build files to deploy specify ENABLE_PDF_EXPORT=1 at the command line:
```
$ ENABLE_PDF_EXPORT=1 mkdocs build
...
INFO    -  Converting 10 articles to PDF took 7.1s
INFO    -  Documentation built in 8.29 seconds
```
debug_html

Setting this to true will out HTML to stdout on build time.
default: false

You can try this:
```
mkdocs build > for_pdf_print.html
```
...and browse output with Google Chrome. Chrome DevTools Into Print Preview Mode will you help.

Note: WeasyPrint and Google Chrome are not fully compatible.
show_anchors

Setting this to true will list out of anchor points provided during the build as info message.
default: false
since: v0.7.4
verbose

Setting this to true will show all WeasyPrint debug messages during the build.
default: false

Custom cover page and document style

It is possible to create a custom cover page for the document. You can also add a custom style sheet to modify the whole document.

To do so, add a templates folder at the root level of your mkdocs project and place a cover.html and/or a styles.scss inside. Alternatively, you can specify a different location with the custom_template_path option.

Custom cover page

Using jinja2 syntax, you can access all data from your mkdocs.yml. To make template creation easier, you can use plugin_some_plugin to access variables from plugins. E.g. use {{ author }} to get the author from your mkdocs.yml that looks like:

plugins:
    - with-pdf:
        author: WHO

You can use custom variables extra: in your mkdocs.yml And, you can check it in the log if run with verbose or debug_html options.

Custom stylesheet

Since your stylesheet is appended to the default ones, you can override every setting from them.

Tip: setting the debug_html option to true to get the generated html that is passed to weasyprint can help you determine the html tags, classes or identifiers you want to modify in your stylesheet.

Advanced Rendering Hooks (Experimental)

You can hook the PDF rendering process by creating a pdf_event_hook.py(or pdf_event_hook/__init__.py) in your working directory (usually the same directory as mkdocs.yml).
since: v0.8.2

Sample `pdf_event_hook.py` (or `pdf_event_hook/init.py`)

import logging

from bs4 import BeautifulSoup
from mkdocs.structure.pages import Page


def inject_link(html: str, href: str,
                page: Page, logger: logging) -> str:
    """Adding PDF View button on navigation bar(using material theme)"""

    def _pdf_icon():
        _ICON = '''
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
<path d="M128,0c-17.6,0-32,14.4-32,32v448c0,17.6,14.4,32,32,32h320c17.6,0,32-14.4,32-32V128L352,0H128z" fill="#E2E5E7"/>
<path d="m384 128h96l-128-128v96c0 17.6 14.4 32 32 32z" fill="#B0B7BD"/>
<polygon points="480 224 384 128 480 128" fill="#CAD1D8"/>
<path d="M416,416c0,8.8-7.2,16-16,16H48c-8.8,0-16-7.2-16-16V256c0-8.8,7.2-16,16-16h352c8.8,0,16,7.2,16,16  V416z" fill="#F15642"/>
<g fill="#fff">
<path d="m101.74 303.15c0-4.224 3.328-8.832 8.688-8.832h29.552c16.64 0 31.616 11.136 31.616 32.48 0 20.224-14.976 31.488-31.616 31.488h-21.36v16.896c0 5.632-3.584 8.816-8.192 8.816-4.224 0-8.688-3.184-8.688-8.816v-72.032zm16.88 7.28v31.872h21.36c8.576 0 15.36-7.568 15.36-15.504 0-8.944-6.784-16.368-15.36-16.368h-21.36z"/>
<path d="m196.66 384c-4.224 0-8.832-2.304-8.832-7.92v-72.672c0-4.592 4.608-7.936 8.832-7.936h29.296c58.464 0 57.184 88.528 1.152 88.528h-30.448zm8.064-72.912v57.312h21.232c34.544 0 36.08-57.312 0-57.312h-21.232z"/>
<path d="m303.87 312.11v20.336h32.624c4.608 0 9.216 4.608 9.216 9.072 0 4.224-4.608 7.68-9.216 7.68h-32.624v26.864c0 4.48-3.184 7.92-7.664 7.92-5.632 0-9.072-3.44-9.072-7.92v-72.672c0-4.592 3.456-7.936 9.072-7.936h44.912c5.632 0 8.96 3.344 8.96 7.936 0 4.096-3.328 8.704-8.96 8.704h-37.248v0.016z"/>
</g>
<path d="m400 432h-304v16h304c8.8 0 16-7.2 16-16v-16c0 8.8-7.2 16-16 16z" fill="#CAD1D8"/>
</svg>
'''  # noqa: E501
        return BeautifulSoup(_ICON, 'html.parser')

    logger.info(f'(hook on inject_link: {page.title})')
    soup = BeautifulSoup(html, 'html.parser')

    nav = soup.find(class_='md-header-nav')
    if not nav:
        # after 7.x
        nav = soup.find('nav', class_='md-header__inner')
    if nav:
        a = soup.new_tag('a', href=href, title='PDF',
                         **{'class': 'md-header__button md-header-nav__button md-icon'})
        a.append(_pdf_icon())
        nav.append(a)
        return str(soup)

    return html


# def pre_js_render(soup: BeautifulSoup, logger: logging) -> BeautifulSoup:
#     logger.info('(hook on pre_js_render)')
#     return soup


# def pre_pdf_render(soup: BeautifulSoup, logger: logging) -> BeautifulSoup:
#     logger.info('(hook on pre_pdf_render)')
#     tag = soup.find(lambda tag: tag.name ==
#                     'body' and 'data-md-color-scheme' in tag.attrs)
#     if tag:
#         tag['data-md-color-scheme'] = 'print'
#     return soup

... and check log:

$ mkdocs build
INFO    -  Found PDF rendering event hook module.
INFO    -  Cleaning site directory
INFO    -  Building documentation to directory: /tmp/sample/site
INFO    -  (hook on inject_link: Home)
   ...

Contributing

From reporting a bug to submitting a pull request: every contribution is appreciated and welcome. Report bugs, ask questions and request features using Github issues. If you want to contribute to the code of this project, please read the Contribution Guidelines.

Special thanks to

Terry Zhao the author of the MkDocs PDF Export Plugin the source of our inspiration. We've used some of his code in this project.

Maddin-619/mkdocs-with-pdf