使用rst2pdf实现将sphinx生成PDF

easy_install rst2pdf

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
  'sphinx.ext.autodoc',
  'rst2pdf.pdfbuilder'
]

# -- Options for PDF output --------------------------------------------------
 
# Grouping the document tree into PDF files. List of tuples
# (source start file, target name, title, author, options).
#
# If there is more than one author, separate them with \\.
# For example: r'Guido van Rossum\\Fred L. Drake, Jr., editor'
#
# The options element is a dictionary that lets you override
# this config per-document.
# For example,
# ('index', u'MyProject', u'My Project', u'Author Name',
# dict(pdf_compressed = True))
# would mean that specific document would be compressed
# regardless of the global pdf_compressed setting.
 
pdf_documents = [
  ('index', u'HanLP Handbook', u'HanLP Handbook', u'hankcs'),
]
 
# A comma-separated list of custom stylesheets. Example:
pdf_stylesheets = ['a3','zh_CN']
 
# Create a compressed PDF
# Use True/False or 1/0
# Example: compressed=True
#pdf_compressed = False
 
# A colon-separated list of folders to search for fonts. Example:
pdf_font_path = ['C:\\Windows\\Fonts']
 
# Language to be used for hyphenation support
pdf_language = "zh_CN"
 
# Mode for literal blocks wider than the frame. Can be
# overflow, shrink or truncate
pdf_fit_mode = "shrink"
 
# Section level that forces a break page.
# For example: 1 means top-level sections start in a new page
# 0 means disabled
#pdf_break_level = 0
 
# When a section starts in a new page, force it to be 'even', 'odd',
# or just use 'any'
#pdf_breakside = 'any'
 
# Insert footnotes where they are defined instead of
# at the end.
#pdf_inline_footnotes = True
 
# verbosity level. 0 1 or 2
#pdf_verbosity = 0
 
# If false, no index is generated.
#pdf_use_index = True
 
# If false, no modindex is generated.
#pdf_use_modindex = True
 
# If false, no coverpage is generated.
#pdf_use_coverpage = True
 
# Documents to append as an appendix to all manuals.
#pdf_appendices = []
 
# Enable experimental feature to split table cells. Use it
# if you get "DelayedTable too big" errors
#pdf_splittables = False
 
# Set the default DPI for images
#pdf_default_dpi = 72
 
# Enable rst2pdf extension modules (default is only vectorpdf)
# you need vectorpdf if you want to use sphinx's graphviz support
#pdf_extensions = ['vectorpdf']
 
# Page template name for "regular" pages
#pdf_page_template = 'cutePage'
 
# Show Table Of Contents at the beginning"htmlcode">

{
 "embeddedFonts": [
  "simsun.ttc"
 ],
 "fontsAlias": {
  "stdFont": "simsun",
  "stdBold": "simsun",
  "stdItalic": "simsun",
  "stdBoldItalic": "simsun",
  "stdMono": "simsun",
  "stdMonoBold": "simsun",
  "stdMonoItalic": "simsun",
  "stdMonoBoldItalic": "simsun",
  "stdSans": "simsun",
  "stdSansBold": "simsun",
  "stdSansItalic": "simsun",
  "stdSansBoldItalic": "simsun"
 },
 "styles": [
  [
   "base",
   {
    "wordWrap": "CJK"
   }
  ],
  [
   "literal",
   {
    "wordWrap": "None"
   }
  ]
 ]
}



关于以上样式的说明：
embeddedFonts用于嵌入字体，经试验，必须包含至少四个值才不会报错。不过这四个字体值可以是重复的。
fontsAlias用来指定各类字形用什么字体。如stdFont指正文字体，stdBold指粗体，stdItalic指斜体。其他的还有stdBoldItalic粗斜体，stdMono等宽体，等等。确保所用字体已经安装在你的操作系统上，且字体必须是TTF类型的（Windows环境下限制比较多~）。
wordWrap用于指定换行规则，CJK就是适用于中日韩文字的规则。这是从网上的模板抄来的，但经我的测试发现，如果用CJK规则的话，中英混排的文档里面英文部分就没法正常断行，这真是个遗憾。实际上，fontsAlias的分类很多都只对英文字体有意义，如严格来讲中文是没有所谓斜体的（不过因为Word的普及，经常看到中文被设置为斜体的情形）。如果是纯中文文档，当然随便用哪些中文字体都行，如宋体。现实中，经常会有中英文混排的情形，所以如果全用中文字体的话，英文部分就没法显示斜体等字形了。
关于pdf_stylesheets的说明：这个参数中默认使用的某些样式包含了一些字体，而这些字体并非在所有操作系统上都找得到。'sphinx'和'kerning'都是默认提供的样式，要么不用它们，要么直接修改其包含的字体。'a4'指设置输出的PDF为A4纸大小。默认的样式文件可以在rst2pdf的安装路径下找到。
然后配置编译脚本
Windows用户，在make.bat中加入：


if "%1" == "pdf" (
  %SPHINXBUILD% -b pdf %ALLSPHINXOPTS% %BUILDDIR%/pdf
  if errorlevel 1 exit /b 1
  echo.
  echo.Build finished. The pdf files are in %BUILDDIR%/pdf.
  goto end
)



类Unix用户修改Makefile:


pdf:
  $(SPHINXBUILD) -b pdf $(ALLSPHINXOPTS) $(BUILDDIR)/pdf
  @echo
  @echo "Build finished. The PDF files are in _build/pdf."



输出PDF
然后一句：


make pdf



就能输出PDF了。
解决findfonts.py:249 Unknown font:
这应该是由于pdf_font_path配置有误造成的，事实上，我确定配置无误rst2pdf还是找不到字体文件，于是我修改了X:\Program Files (x86)\Python27\Lib\site-packages\rst2pdf\findfonts.py第236行，在
fontfile = get_nt_fname(fname)


后面加了一句：
fontfile = 'C:\\Windows\\Fonts\\simsun.ttc'


强行解决问题。
解决rst2pdf输出PDF为空白文档
事实上，在字体正常的情况下，我发现输出的PDF依然是空白的：

在使用二分法排除rst文件中的问题后，我发现这是由于PDF开头的目录造成的。当目录超出一页时就会发生这种情况，我倾向于认为这是rst2pdf的一个bug。
解决方法是将pdf_toc_depth调小一点，或者干脆不生成目录，pdf_use_toc = False。
PDF效果
于是再次重试，可以生成漂亮的PDF了：

相关链接：
http://sphinx-users.jp/cookbook/pdf/rst2pdf.html
http://ralsina.me/static/manual.pdf
http://www.typemylife.com/sphinx-restructuredtext-pdf-generation-with-rst2pdf/