diff --git a/src/strands/models/bedrock.py b/src/strands/models/bedrock.py
index 4a7c81672..d4c61a017 100644
--- a/src/strands/models/bedrock.py
+++ b/src/strands/models/bedrock.py
@@ -398,7 +398,7 @@ def _format_request_message_content(self, content: ContentBlock) -> dict[str, An
 
             # Handle source
             if "source" in document:
-                result["source"] = {"bytes": document["source"]["bytes"]}
+                result["source"] = document["source"]
 
             # Handle optional fields
             if "citations" in document and document["citations"] is not None:
diff --git a/src/strands/types/media.py b/src/strands/types/media.py
index 69cd60cf3..a2b2f2979 100644
--- a/src/strands/types/media.py
+++ b/src/strands/types/media.py
@@ -5,7 +5,7 @@
 - Bedrock docs: https://docs.aws.amazon.com/bedrock/latest/APIReference/API_Types_Amazon_Bedrock_Runtime.html
 """
 
-from typing import Literal, Optional
+from typing import Any, List, Literal, Optional
 
 from typing_extensions import TypedDict
 
@@ -15,14 +15,18 @@
 """Supported document formats."""
 
 
-class DocumentSource(TypedDict):
+class DocumentSource(TypedDict, total=False):
     """Contains the content of a document.
 
     Attributes:
         bytes: The binary content of the document.
+        text: The text content of the document source.
+        content: The structured content of the document source.
     """
 
     bytes: bytes
+    text: str
+    content: List[Any]
 
 
 class DocumentContent(TypedDict, total=False):
diff --git a/tests/strands/models/test_bedrock.py b/tests/strands/models/test_bedrock.py
index 2809e8a72..ea1ad574e 100644
--- a/tests/strands/models/test_bedrock.py
+++ b/tests/strands/models/test_bedrock.py
@@ -19,6 +19,7 @@
     DEFAULT_BEDROCK_REGION,
     DEFAULT_READ_TIMEOUT,
 )
+from strands.types.content import ContentBlock
 from strands.types.exceptions import ModelThrottledException
 from strands.types.tools import ToolSpec
 
@@ -2070,3 +2071,51 @@ async def test_stream_backward_compatibility_system_prompt(bedrock_client, model
         "system": [{"text": system_prompt}],
     }
     bedrock_client.converse_stream.assert_called_once_with(**expected_request)
+
+
+def test_format_request_document_with_text_source(model):
+    """Test that _format_request_message_content correctly handles a document with a 'text' source."""
+    document_text = "This is the document content."
+    content_block: ContentBlock = {
+        "document": {
+            "name": "test_doc",
+            "source": {"text": document_text},
+            "format": "txt",
+        }
+    }
+
+    formatted_content = model._format_request_message_content(content_block)
+
+    assert formatted_content["document"]["source"] == {"text": document_text}
+
+
+def test_format_request_document_with_bytes_source(model):
+    """Test that _format_request_message_content correctly handles a 'bytes' source."""
+
+    content_block: ContentBlock = {
+        "document": {
+            "name": "test_doc",
+            "source": {"bytes": b"some byte data"},
+            "format": "txt",
+        }
+    }
+
+    formatted_content = model._format_request_message_content(content_block)
+
+    assert formatted_content["document"]["source"] == {"bytes": b"some byte data"}
+
+
+def test_format_request_document_with_content_source(model):
+    """Test that _format_request_message_content correctly handles a 'content' source."""
+    doc_content = [{"text": "structured content"}]
+    content_block: ContentBlock = {
+        "document": {
+            "name": "test_doc",
+            "source": {"content": doc_content},
+            "format": "txt",
+        }
+    }
+
+    formatted_content = model._format_request_message_content(content_block)
+
+    assert formatted_content["document"]["source"] == {"content": doc_content}