diff --git a/CHANGELOGS.rst b/CHANGELOGS.rst
index c19c718..3dcff97 100644
--- a/CHANGELOGS.rst
+++ b/CHANGELOGS.rst
@@ -4,6 +4,7 @@ Change Logs
 0.3.0
 +++++
 
+* :pr:`33`: add simple command line to convert images to pdf
 * :pr:`28`: add syntax to check the readme syntax
 * :pr:`27`: fix missing __text_signature__ in docassert
 
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..b4e1709
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,15 @@
+# Code of Conduct
+
+We are a community based on openness, as well as friendly and didactic discussions.
+
+We aspire to treat everybody equally, and value their contributions.
+
+Decisions are made based on technical merit and consensus.
+
+Code is not the only way to help the project. Reviewing pull requests,
+answering questions to help others on mailing lists or issues, organizing and
+teaching tutorials, working on the website, improving the documentation, are
+all priceless contributions.
+
+We abide by the principles of openness, respect, and consideration of others of
+the Python Software Foundation: https://www.python.org/psf/codeofconduct/
diff --git a/_unittests/ut_tools/data/image.png b/_unittests/ut_tools/data/image.png
new file mode 100644
index 0000000..5bd15e9
Binary files /dev/null and b/_unittests/ut_tools/data/image.png differ
diff --git a/_unittests/ut_tools/data/img4.png b/_unittests/ut_tools/data/img4.png
new file mode 100644
index 0000000..65f98e4
Binary files /dev/null and b/_unittests/ut_tools/data/img4.png differ
diff --git a/_unittests/ut_tools/data/mazures0.jpg b/_unittests/ut_tools/data/mazures0.jpg
new file mode 100644
index 0000000..f891ed7
Binary files /dev/null and b/_unittests/ut_tools/data/mazures0.jpg differ
diff --git a/_unittests/ut_tools/data/mazures1.jpg b/_unittests/ut_tools/data/mazures1.jpg
new file mode 100644
index 0000000..26326f4
Binary files /dev/null and b/_unittests/ut_tools/data/mazures1.jpg differ
diff --git a/_unittests/ut_tools/test_imgexport.py b/_unittests/ut_tools/test_imgexport.py
new file mode 100644
index 0000000..53dac2c
--- /dev/null
+++ b/_unittests/ut_tools/test_imgexport.py
@@ -0,0 +1,27 @@
+import os
+import unittest
+from sphinx_runpython.ext_test_case import ExtTestCase
+from sphinx_runpython.tools.img_export import images2pdf
+
+
+class TestImgExport(ExtTestCase):
+
+    def test_export1(self):
+        dest = "test_export1.pdf"
+        data = os.path.join(os.path.dirname(__file__), "data", "mazures1.jpg")
+        datap = os.path.join(os.path.dirname(__file__), "data", "*.jpg")
+        res = images2pdf([data, datap], dest)
+        self.assertExists(dest)
+        self.assertEqual(len(res), 3)
+
+    def test_export2(self):
+        dest = "test_export2.pdf"
+        data = os.path.join(os.path.dirname(__file__), "data", "mazures1.jpg")
+        datap = os.path.join(os.path.dirname(__file__), "data", "*.jpg")
+        res = images2pdf(",".join([data, datap]), dest)
+        self.assertExists(dest)
+        self.assertEqual(len(res), 3)
+
+
+if __name__ == "__main__":
+    unittest.main(verbosity=2)
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 57821d1..0b4e68a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,6 +2,7 @@ black
 coverage
 flake8
 furo
+img2pdf
 isort
 matplotlib
 numpydoc
diff --git a/sphinx_runpython/_cmd_helper.py b/sphinx_runpython/_cmd_helper.py
index 0817d5c..402754e 100644
--- a/sphinx_runpython/_cmd_helper.py
+++ b/sphinx_runpython/_cmd_helper.py
@@ -2,7 +2,6 @@
 import os
 from argparse import ArgumentParser
 from tempfile import TemporaryDirectory
-from .convert import convert_ipynb_to_gallery
 
 
 def get_parser():
@@ -12,7 +11,8 @@ def get_parser():
         epilog="",
     )
     parser.add_argument(
-        "command", help="Command to run, only 'nb2py' or 'readme' are available"
+        "command",
+        help="Command to run, only 'nb2py', 'readme', 'img2pdf' are available",
     )
     parser.add_argument(
         "-p", "--path", help="Folder or file which contains the files to process"
@@ -23,11 +23,18 @@ def get_parser():
         help="Recursive search.",
         action="store_true",
     )
+    parser.add_argument(
+        "-o",
+        "--output",
+        help="output",
+    )
     parser.add_argument("-v", "--verbose", help="verbosity", default=1, type=int)
     return parser
 
 
 def nb2py(infolder: str, recursive: bool = False, verbose: int = 0):
+    from .convert import convert_ipynb_to_gallery
+
     if not os.path.exists(infolder):
         raise FileNotFoundError(f"Unable to find {infolder!r}.")
     patterns = [infolder + "/*.ipynb", infolder + "/**/*.ipynb"]
@@ -47,6 +54,11 @@ def process_args(args):
     if cmd == "nb2py":
         nb2py(args.path, recursive=args.recursive, verbose=args.verbose)
         return
+    if cmd == "img2pdf":
+        from .tools.img_export import images2pdf
+
+        images2pdf(args.path, args.output, verbose=args.verbose)
+        return
     if cmd == "readme":
         from .readme import check_readme_syntax
 
diff --git a/sphinx_runpython/tools/__init__.py b/sphinx_runpython/tools/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/sphinx_runpython/tools/img_export.py b/sphinx_runpython/tools/img_export.py
new file mode 100644
index 0000000..1521e6a
--- /dev/null
+++ b/sphinx_runpython/tools/img_export.py
@@ -0,0 +1,71 @@
+import glob
+import os
+from typing import List, Optional, Sequence, Union
+
+
+def images2pdf(
+    images: Union[str, Sequence[str]], output: Optional[str], verbose: int = 0
+) -> List[str]:
+    """
+    Merges multiples images into one single pdf.
+    Relies on :epkg:`img2pdf`. If an image name contains
+    ``'*'``, the function assumes it is a pattern and
+    uses :mod:`glob`.
+
+    :param images: images to merge, it can be a comma separated values or a folder
+    :param output: output filename or stream
+    :param verbose: verbosity
+    """
+    from img2pdf import convert
+
+    if isinstance(images, str):
+        if "," in images:
+            images = images.split(",")
+        elif "*" in images:
+            images = [images]
+        elif os.path.exists(images):
+            images = [images]
+        else:
+            raise RuntimeError(f"Unable to deal with images={images!r}")
+    elif not isinstance(images, (list, tuple)):
+        raise TypeError("Images must be a list.")  # pragma: no cover
+
+    all_images = []
+    for img in images:
+        if "*" in img:
+            if verbose:
+                print(f"[images2pdf] look into {img!r}")
+            names = glob.glob(img)
+            if verbose:
+                print(f"[images2pdf] add {len(names)} images")
+            all_images.extend(names)
+        else:
+            if verbose:
+                print(f"[images2pdf] add {img!r}")
+            all_images.append(img)
+
+    if verbose > 1:
+        for i, img in enumerate(all_images):
+            print(f"[images2pdf] {i + 1}/{len(all_images)} {img!r}")
+
+    st, close = (
+        (open(output, "wb"), True) if isinstance(output, str) else (output, False)
+    )
+
+    for img in all_images:
+        assert not isinstance(img, str) or os.path.exists(
+            img
+        ), f"Unable to find image {img!r}."
+
+    try:
+        convert(all_images, outputstream=st, with_pdfrw=False)
+    except TypeError as e:
+        raise TypeError(
+            f"Unable to process container type {type(all_images)} "
+            f"and type {type(all_images[0])}."
+        ) from e
+
+    if close:
+        st.close()
+
+    return all_images