ENH: Add Jupyter Notebook integration for PdfReader (#2375)

See

* https://ipython.readthedocs.io/en/stable/config/integrating.html#MyObject._repr_mimebundle_
* https://discourse.jupyter.org/t/what-are-include-exclude-parameter-in-repr-mimebundle-for/23125

pypdf/_reader.py

@@ -341,6 +341,35 @@ def __init__(
         elif password is not None:
             raise PdfReadError("Not encrypted file")
 
+    def _repr_mimebundle_(
+        self,
+        include: Union[None, Iterable[str]] = None,
+        exclude: Union[None, Iterable[str]] = None,
+    ) -> Dict[str, Any]:
+        """
+        Integration into Jupyter Notebooks.
+
+        This method returns a dictionary that maps a mime-type to it's
+        representation.
+
+        See https://ipython.readthedocs.io/en/stable/config/integrating.html
+        """
+        self.stream.seek(0)
+        pdf_data = self.stream.read()
+        data = {
+            "application/pdf": pdf_data,
+        }
+
+        if include is not None:
+            # Filter representations based on include list
+            data = {k: v for k, v in data.items() if k in include}
+
+        if exclude is not None:
+            # Remove representations based on exclude list
+            data = {k: v for k, v in data.items() if k not in exclude}
+
+        return data
+
     @property
     def pdf_header(self) -> str:
         """