diff --git a/packages/markitdown/src/markitdown/converters/_docx_converter.py b/packages/markitdown/src/markitdown/converters/_docx_converter.py
index c568acb..daba123 100644
--- a/packages/markitdown/src/markitdown/converters/_docx_converter.py
+++ b/packages/markitdown/src/markitdown/converters/_docx_converter.py
@@ -72,6 +72,8 @@ class DocxConverter(HtmlConverter):
             )
 
         style_map = kwargs.get("style_map", None)
+        keep_data_uris = kwargs.get("keep_data_uris", False)
         return self._html_converter.convert_string(
-            mammoth.convert_to_html(file_stream, style_map=style_map).value
+            mammoth.convert_to_html(file_stream, style_map=style_map).value,
+            keep_data_uris=keep_data_uris
         )
diff --git a/packages/markitdown/src/markitdown/converters/_html_converter.py b/packages/markitdown/src/markitdown/converters/_html_converter.py
index 8a8203d..7195772 100644
--- a/packages/markitdown/src/markitdown/converters/_html_converter.py
+++ b/packages/markitdown/src/markitdown/converters/_html_converter.py
@@ -55,10 +55,11 @@ class HtmlConverter(DocumentConverter):
         # Print only the main content
         body_elm = soup.find("body")
         webpage_text = ""
+        keep_data_uris = kwargs.get("keep_data_uris", False)
         if body_elm:
-            webpage_text = _CustomMarkdownify().convert_soup(body_elm)
+            webpage_text = _CustomMarkdownify(keep_data_uris=keep_data_uris).convert_soup(body_elm)
         else:
-            webpage_text = _CustomMarkdownify().convert_soup(soup)
+            webpage_text = _CustomMarkdownify(keep_data_uris=keep_data_uris).convert_soup(soup)
 
         assert isinstance(webpage_text, str)
 
diff --git a/packages/markitdown/src/markitdown/converters/_markdownify.py b/packages/markitdown/src/markitdown/converters/_markdownify.py
index ae99c0b..d98e1a3 100644
--- a/packages/markitdown/src/markitdown/converters/_markdownify.py
+++ b/packages/markitdown/src/markitdown/converters/_markdownify.py
@@ -17,6 +17,7 @@ class _CustomMarkdownify(markdownify.MarkdownConverter):
 
     def __init__(self, **options: Any):
         options["heading_style"] = options.get("heading_style", markdownify.ATX)
+        self.keep_data_uris = options.pop("keep_data_uris", False)
         # Explicitly cast options to the expected type if necessary
         super().__init__(**options)
 
@@ -101,7 +102,7 @@ class _CustomMarkdownify(markdownify.MarkdownConverter):
             return alt
 
         # Remove dataURIs
-        if src.startswith("data:"):
+        if src.startswith("data:") and not self.keep_data_uris:
             src = src.split(",")[0] + "..."
 
         return "![%s](%s%s)" % (alt, src, title_part)
diff --git a/packages/markitdown/src/markitdown/converters/_pptx_converter.py b/packages/markitdown/src/markitdown/converters/_pptx_converter.py
index e855382..a45a507 100644
--- a/packages/markitdown/src/markitdown/converters/_pptx_converter.py
+++ b/packages/markitdown/src/markitdown/converters/_pptx_converter.py
@@ -78,6 +78,9 @@ class PptxConverter(DocumentConverter):
                 _dependency_exc_info[2]
             )
 
+        # Get the keep_data_uris parameter
+        keep_data_uris = kwargs.get("keep_data_uris", False)
+
         # Perform the conversion
         presentation = pptx.Presentation(file_stream)
         md_content = ""
@@ -140,9 +143,16 @@ class PptxConverter(DocumentConverter):
                     alt_text = re.sub(r"[\r\n\[\]]", " ", alt_text)
                     alt_text = re.sub(r"\s+", " ", alt_text).strip()
 
-                    # A placeholder name
-                    filename = re.sub(r"\W", "", shape.name) + ".jpg"
-                    md_content += "\n![" + alt_text + "](" + filename + ")\n"
+                    # If keep_data_uris is True, use base64 encoding for images
+                    if keep_data_uris:
+                        blob = shape.image.blob
+                        content_type = shape.image.content_type or "image/png"
+                        b64_string = base64.b64encode(blob).decode("utf-8")
+                        md_content += f"\n![{alt_text}](data:{content_type};base64,{b64_string})\n"
+                    else:
+                        # A placeholder name
+                        filename = re.sub(r"\W", "", shape.name) + ".jpg"
+                        md_content += "\n![" + alt_text + "](" + filename + ")\n"
 
                 # Tables
                 if self._is_table(shape):