Nearly there with the docs.

Author: domdfcoding

doc-source/index.rst

@@ -178,8 +178,10 @@ Highlights
 
 .. start links
 
-View the :ref:`Function Index <genindex>` or browse the `Source Code <_modules/index.html>`__.
+.. only:: html
+
+	View the :ref:`Function Index <genindex>` or browse the `Source Code <_modules/index.html>`__.
 
-`Browse the GitHub Repository <https://github.com/domdfcoding/domdf_python_tools>`__
+	`Browse the GitHub Repository <https://github.com/domdfcoding/domdf_python_tools>`__
 
 .. end links

doc-source/latex_toctree_sections.py

@@ -1,14 +1,57 @@
 # stdlib
-from typing import Any, Dict, List
+from typing import Any, Dict, List, Tuple
 
 # 3rd party
 import sphinx.directives.other
 from docutils import nodes
 from sphinx.application import Sphinx
+from sphinx.domains import IndexEntry
+from sphinx.writers.latex import LaTeXTranslator
 
 __all__ = ["TocTreePlusDirective", "setup"]
 
 
+def generate_indices(translator) -> str:
+	def generate(content: List[Tuple[str, List[IndexEntry]]], collapsed: bool) -> None:
+		ret.append("\\bookmarksetupnext{{level=part}}\n")
+		ret.append('\\begin{sphinxtheindex}\n')
+		ret.append('\\let\\bigletter\\sphinxstyleindexlettergroup\n')
+		for i, (letter, entries) in enumerate(content):
+			if i > 0:
+				ret.append('\\indexspace\n')
+			ret.append('\\bigletter{%s}\n' % translator.escape(letter))
+			for entry in entries:
+				if not entry[3]:
+					continue
+				ret.append('\\item\\relax\\sphinxstyleindexentry{%s}' %
+						   translator.encode(entry[0]))
+				if entry[4]:
+					# add "extra" info
+					ret.append('\\sphinxstyleindexextra{%s}' % translator.encode(entry[4]))
+				ret.append('\\sphinxstyleindexpageref{%s:%s}\n' %
+						   (entry[2], translator.idescape(entry[3])))
+		ret.append('\\end{sphinxtheindex}\n')
+
+	ret = []
+	# latex_domain_indices can be False/True or a list of index names
+	indices_config = translator.builder.config.latex_domain_indices
+	if indices_config:
+		for domain in translator.builder.env.domains.values():
+			for indexcls in domain.indices:
+				indexname = '%s-%s' % (domain.name, indexcls.name)
+				if isinstance(indices_config, list):
+					if indexname not in indices_config:
+						continue
+				content, collapsed = indexcls(domain).generate(
+						translator.builder.docnames)
+				if not content:
+					continue
+				ret.append('\\renewcommand{\\indexname}{%s}\n' %
+						   indexcls.localname)
+				generate(content, collapsed)
+
+	return ''.join(ret)
+
 # TODO: The first section in a part has all sub sections nested under it in the sidebar,
 #  The numbering is correct, and its correct in the contents
 
@@ -42,6 +85,7 @@ def setup(app: Sphinx) -> Dict[str, Any]:
 	"""
 
 	app.add_directive("toctree", TocTreePlusDirective, override=True)
+	LaTeXTranslator.generate_indices = generate_indices
 
 	return {
 			"parallel_read_safe": True,