diff --git a/doc/modules.rst b/doc/api/modules.rst
similarity index 54%
rename from doc/modules.rst
rename to doc/api/modules.rst
index 79e3c48d..b2debbc0 100644
--- a/doc/modules.rst
+++ b/doc/api/modules.rst
@@ -1,5 +1,5 @@
-API Documentation
-=================
+pdf2docx
+========
 
 .. toctree::
    :maxdepth: 4
diff --git a/doc/conf.py b/doc/conf.py
index 7219c152..1f021cb8 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -40,9 +40,14 @@ def get_version(fname):
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'sphinx.ext.autodoc'
+    'sphinxcontrib.apidoc'
 ]
 
+apidoc_module_dir = '../pdf2docx'
+apidoc_output_dir = 'api'
+apidoc_excluded_paths = []
+apidoc_separate_modules = True
+
 # Add any paths that contain templates here, relative to this directory.
 # templates_path = ['_templates']
 
diff --git a/doc/index.rst b/doc/index.rst
index d4c47094..65ce18ab 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -9,12 +9,18 @@ generate docx file with ``python-docx``.
 
 .. toctree::
    :maxdepth: 2
-   :caption: Contents:
+   :caption: USER GUIDE
 
    installation
    quickstart
    techdoc
-   modules
+
+
+.. toctree::
+   :maxdepth: 2
+   :caption: API DOCUMENTATION
+
+   api/modules
 
 
 Indices and tables
diff --git a/doc/requirements.txt b/doc/requirements.txt
index cfeb3b4d..65846bd1 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -4,3 +4,4 @@ rst2pdf
 sphinx==5.3.0
 autodoc
 sphinx_rtd_theme
+sphinxcontrib.apidoc