diff --git a/docs/conf.py b/docs/conf.py
index 240329c..9c76ed3 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -54,3 +54,8 @@
 extensions += ['sphinx.ext.extlinks']
 
 # local
+
+nitpick_ignore += [
+    # jaraco/jaraco.imaging#3
+    ('py:class', 'PIL.Image.Image'),
+]
diff --git a/jaraco/imaging/__init__.py b/jaraco/imaging/__init__.py
index e5bfba6..2f36594 100644
--- a/jaraco/imaging/__init__.py
+++ b/jaraco/imaging/__init__.py
@@ -7,7 +7,7 @@
 import io
 import operator
 import struct
-from collections import namedtuple
+from typing import Iterable, NamedTuple, Tuple, Union
 
 import PIL.Image
 from importlib_resources import files
@@ -15,23 +15,33 @@
 import jaraco.clipboard
 
 
-def calc_aspect(size):
+def calc_aspect(size: Iterable[int]) -> float:
     "aspect = size[0] / size[1] # width/height"
     return functools.reduce(operator.truediv, size)
 
 
-Dimensions = namedtuple('Dimensions', 'width height')
+class Dimensions(NamedTuple):
+    width: int
+    height: int
 
 
-def replace_height(size, new_height):
+def replace_height(size: Dimensions, new_height: int) -> Dimensions:
     return Dimensions(size.width, new_height)
 
 
-def replace_width(size, new_width):
+def replace_width(size: Dimensions, new_width: int) -> Dimensions:
     return Dimensions(new_width, size.height)
 
 
-def resize_with_aspect(image, max_size, *args, **kargs):
+_PILImageParams = Union[int, Tuple[float, float, float, float], float, None]
+
+
+def resize_with_aspect(
+    image: PIL.Image.Image,
+    max_size: Iterable[int],
+    *args: _PILImageParams,
+    **kargs: _PILImageParams,
+) -> PIL.Image.Image:
     """
     Resizes a PIL image to a maximum size specified while maintaining
     the aspect ratio of the image.
@@ -55,15 +65,15 @@ def resize_with_aspect(image, max_size, *args, **kargs):
         # width is the limiting factor
         new_width = int(round(max_size.height * aspect))
         new_size = replace_width(max_size, new_width)
-    return image.resize(new_size, *args, **kargs)
+    return image.resize(new_size, *args, **kargs)  # type: ignore[arg-type] # Assume the user passed correct parameters or let it fail
 
 
-def load_apng():
+def load_apng() -> PIL.Image.Image:
     apng = files() / 'sample.png'
     return PIL.Image.open(io.BytesIO(apng.read_bytes()))
 
 
-def get_image():
+def get_image() -> PIL.Image.Image:
     """
     Stolen from lpaste. TODO: extract to jaraco.clipboard or similar.
     """
@@ -75,7 +85,7 @@ def get_image():
     return PIL.Image.open(img_stream)
 
 
-def save_clipboard_image():
+def save_clipboard_image() -> None:
     parser = argparse.ArgumentParser()
     parser.add_argument('filename')
     filename = parser.parse_args().filename
diff --git a/jaraco/imaging/py.typed b/jaraco/imaging/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/mypy.ini b/mypy.ini
index efcb8cb..1d94e21 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1,6 +1,6 @@
 [mypy]
 # Is the project well-typed?
-strict = False
+strict = True
 
 # Early opt-in even when strict = False
 warn_unused_ignores = True
@@ -13,3 +13,7 @@ explicit_package_bases = True
 disable_error_code =
 	# Disable due to many false positives
 	overload-overlap,
+
+# jaraco/jaraco.clipboard#15
+[mypy-jaraco.clipboard.*]
+ignore_missing_imports = True
diff --git a/newsfragments/3.feature.rst b/newsfragments/3.feature.rst
new file mode 100644
index 0000000..88e9b7c
--- /dev/null
+++ b/newsfragments/3.feature.rst
@@ -0,0 +1 @@
+Complete annotations and add ``py.typed`` marker -- by :user:`Avasam`
diff --git a/pyproject.toml b/pyproject.toml
index 4bd64bf..2fc0820 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -72,7 +72,3 @@ save-cb-image = "jaraco.imaging:save_clipboard_image"
 
 
 [tool.setuptools_scm]
-
-
-[tool.pytest-enabler.mypy]
-# Disabled due to jaraco/skeleton#143