diff --git a/CHANGELOG.md b/CHANGELOG.md
index 99a134f..03000c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [Unreleased]
 
 ### Added
+- Export type annotations from pypi package per PEP561 ([#679](https://github.com/pdfminer/pdfminer.six/pull/679))
 - Support for identity cmap's ([#626](https://github.com/pdfminer/pdfminer.six/pull/626))
 
 ### Fixed
diff --git a/pdfminer/py.typed b/pdfminer/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/setup.py b/setup.py
index ce94b5f..bc7f074 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ setup(
     name='pdfminer.six',
     version=package.__version__,
     packages=['pdfminer'],
-    package_data={'pdfminer': ['cmap/*.pickle.gz']},
+    package_data={'pdfminer': ['cmap/*.pickle.gz', 'py.typed']},
     install_requires=[
         'chardet ; python_version > "3.0"',
         'cryptography',