diff --git a/sphinx_markdown_builder/builder.py b/sphinx_markdown_builder/builder.py
index fd774d67..c2617d84 100644
--- a/sphinx_markdown_builder/builder.py
+++ b/sphinx_markdown_builder/builder.py
@@ -13,6 +13,7 @@
 from sphinx.locale import __
 from sphinx.util import logging
 from sphinx.util.osutil import ensuredir, os_path
+from sphinx.util.fileutil import copy_asset_file
 
 from sphinx_markdown_builder.translator import MarkdownTranslator
 from sphinx_markdown_builder.writer import MarkdownWriter
@@ -94,3 +95,18 @@ def write_doc(self, docname: str, doctree: nodes.document):
         with io_handler(out_filename):
             with open(out_filename, "w", encoding="utf-8") as file:
                 file.write(self.writer.output)
+    
+    def copy_image_files(self) -> None:
+        if self.images:
+            for key in self.images.keys():
+                copy_asset_file(os.path.join(self.srcdir, key), self.outdir)
+    
+    def write(
+        self,
+        build_docnames,
+        updated_docnames,
+        method: str = 'update',
+    ) -> None:
+        super().write(build_docnames, updated_docnames, method)
+        self.copy_image_files()
+
diff --git a/sphinx_markdown_builder/translator.py b/sphinx_markdown_builder/translator.py
index a05e635d..fb74de8b 100644
--- a/sphinx_markdown_builder/translator.py
+++ b/sphinx_markdown_builder/translator.py
@@ -86,6 +86,7 @@
     document=None,
     container=None,
     inline=None,
+    Inline=None,
     definition_list=None,
     definition_list_item=None,
     glossary=None,
@@ -323,6 +324,7 @@ def visit_image(self, node):
         """Image directive."""
         uri = node["uri"]
         alt = node.attributes.get("alt", "image")
+        self.builder.images[uri] = uri
         # We don't need to add EOL before/after the image.
         # It will be handled by the visit/depart handlers of the paragraph.
         self.add(f"![{alt}]({uri})")
@@ -524,6 +526,12 @@ def _fetch_ref_uri(self, node):
     @pushing_context
     def visit_reference(self, node):
         url = self._fetch_ref_uri(node)
+        # if the reference object itself has the url 
+        # (such as for an intra-document heading reference)
+        # use that url instead
+        ref_id = node.get("refid", None)
+        if ref_id is not None and url == "":
+            url = f"#{ref_id}"
         self._push_context(WrappedContext("[", f"]({url})"))
 
     @pushing_context
@@ -615,7 +623,14 @@ def visit_desc_signature(self, node):
         # Insert anchors if enabled by the config
         if self.config.markdown_anchor_signatures:
             for anchor in node.get("ids", []):
-                self._add_anchor(anchor)
+                # only use v4 cpp anchors
+                if len(anchor) < 6:
+                    self._add_anchor(anchor)
+                elif anchor[0:5] == "_CPPv":
+                    if not (anchor[5:6] in ["2","3"]):
+                        self._add_anchor(anchor)
+                else:
+                    self._add_anchor(anchor)
 
         # We don't want methods to be at the same level as classes,
         # If signature has a non-null class, that's means it is a signature