diff --git a/app/io/pandoc.py b/app/io/pandoc.py
new file mode 100644
index 0000000..863b17d
--- /dev/null
+++ b/app/io/pandoc.py
@@ -0,0 +1,39 @@
+# All comments in English.
+
+import pypandoc
+from bs4 import BeautifulSoup
+
+def normalize_newlines(value):
+    if value is None:
+        return ""
+    return (
+        str(value)
+        .replace("\r\n", "\\n")
+        .replace("\n\r", "\\n")
+        .replace("\r", "\\n")
+        .replace("\n", "\\n")
+    )
+
+def convert_document(path):
+    """
+    Converts any supported document to plain text using Pandoc.
+    Supported formats:
+    - doc
+    - docx
+    - odt
+    - txt
+    - md
+    - html
+    """
+
+    try:
+        # Pandoc converts everything to plain text
+        text = pypandoc.convert_file(path, "plain")
+    except Exception as e:
+        raise RuntimeError(f"Pandoc conversion failed: {str(e)}")
+
+    # Clean HTML artifacts if any
+    soup = BeautifulSoup(text, "html.parser")
+    cleaned = soup.get_text()
+
+    return normalize_newlines(cleaned)