diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e6f7760..f88ae7d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 
 - **Conversion options now apply to non-PDF formats.** `DoclingLocalConverter` previously wired its `PdfPipelineOptions` only to `InputFormat.PDF`, so user settings (OCR knobs, `picture_description.enabled`, `images_scale`, etc.) silently no-op'd for HTML, Markdown, DOCX, PPTX, and IMAGE inputs. The converter now shares a single `PdfPipelineOptions` instance across PDF, IMAGE, HTML, MD, DOCX, and PPTX `FormatOption`s. SimplePipeline-backed formats ignore the PDF-specific fields; `ConvertPipelineOptions`-level enrichments (picture description / classification / chart extraction) now run uniformly. HTML and Markdown additionally receive `HTMLBackendOptions` / `MarkdownBackendOptions` gated on `fetch_remote_images`.
 - **HTML text ingest path picks up converter options.** `convert_text(format="html"/"md")` previously used a bare `DoclingDocConverter()` with zero format options — the wix corpus ingest path. It now uses the same shared `_build_format_options()` helper as the file path.
+- **Relative `<img>` paths resolve during URL ingest.** `HaikuRAG.convert()` and the converter `convert_file` / `convert_text` methods now thread a `source_uri` through to `HTMLBackendOptions.source_uri` / `MarkdownBackendOptions.source_uri`. URL ingest uses the originating URL; file ingest uses `file://`; raw text accepts an optional override. docling-serve accepts the kwarg as a no-op (its API has no equivalent option).
 
 ### Documentation
 
diff --git a/haiku_rag_slim/haiku/rag/client/__init__.py b/haiku_rag_slim/haiku/rag/client/__init__.py
index 1413757f..3a26a533 100644
--- a/haiku_rag_slim/haiku/rag/client/__init__.py
+++ b/haiku_rag_slim/haiku/rag/client/__init__.py
@@ -139,19 +139,25 @@ class HaikuRAG:
     # =========================================================================
 
     @overload
-    async def convert(self, source: Path) -> "DoclingDocument": ...
+    async def convert(
+        self, source: Path, *, source_uri: str | None = None
+    ) -> "DoclingDocument": ...
 
     @overload
     async def convert(
-        self, source: str, *, format: str = "md"
+        self, source: str, *, format: str = "md", source_uri: str | None = None
     ) -> "DoclingDocument": ...
 
     async def convert(
-        self, source: Path | str, *, format: str = "md"
+        self,
+        source: Path | str,
+        *,
+        format: str = "md",
+        source_uri: str | None = None,
     ) -> "DoclingDocument":
         from haiku.rag.client.processing import convert
 
-        return await convert(self._config, source, format=format)
+        return await convert(self._config, source, format=format, source_uri=source_uri)
 
     async def chunk(
         self,
diff --git a/haiku_rag_slim/haiku/rag/client/documents.py b/haiku_rag_slim/haiku/rag/client/documents.py
index 100bc51a..605c8950 100644
--- a/haiku_rag_slim/haiku/rag/client/documents.py
+++ b/haiku_rag_slim/haiku/rag/client/documents.py
@@ -411,7 +411,7 @@ async def _create_or_update_document_from_url(
             temp_path = Path(temp_file.name)
 
         try:
-            docling_document = await client.convert(temp_path)
+            docling_document = await client.convert(temp_path, source_uri=url)
             chunks = await client.chunk(docling_document)
             embedded_chunks = await embed_chunks(chunks, client._config)
         finally:
@@ -547,7 +547,7 @@ async def _create_or_update_document_from_s3(
         return existing_doc
 
     try:
-        docling_document = await client.convert(temp_path)
+        docling_document = await client.convert(temp_path, source_uri=url)
         chunks = await client.chunk(docling_document)
         embedded_chunks = await embed_chunks(chunks, client._config)
     finally:
diff --git a/haiku_rag_slim/haiku/rag/client/processing.py b/haiku_rag_slim/haiku/rag/client/processing.py
index 8ccec652..b1051323 100644
--- a/haiku_rag_slim/haiku/rag/client/processing.py
+++ b/haiku_rag_slim/haiku/rag/client/processing.py
@@ -52,7 +52,11 @@ def _warn_if_descriptions_missing(
 
 
 async def convert(
-    config: AppConfig, source: Path | str, *, format: str = "md"
+    config: AppConfig,
+    source: Path | str,
+    *,
+    format: str = "md",
+    source_uri: str | None = None,
 ) -> "DoclingDocument":
     """Convert a file, URL, or text to DoclingDocument.
 
@@ -66,6 +70,10 @@ async def convert(
             Defaults to "md". Use "plain" for plain text without parsing.
             Only used when source is raw text (not a file path or URL).
             Files and URLs determine format from extension/content-type.
+        source_uri: Origin URI used by docling's HTML/Markdown backends to
+            resolve relative `<img src="/path">` references. When omitted,
+            defaults to the URL (URL ingest) or `file://` URI (file ingest);
+            raw text input has no origin so no default is derived.
 
     Returns:
         DoclingDocument from the converted source.
@@ -82,7 +90,8 @@ async def convert(
             raise ValueError(f"File does not exist: {source}")
         if source.suffix.lower() not in converter.supported_extensions:
             raise ValueError(f"Unsupported file extension: {source.suffix}")
-        doc = await converter.convert_file(source)
+        effective_uri = source_uri or source.absolute().as_uri()
+        doc = await converter.convert_file(source, source_uri=effective_uri)
         _warn_if_descriptions_missing(config, doc, str(source))
         return doc
 
@@ -113,7 +122,8 @@ async def convert(
                 temp_path = Path(temp_file.name)
 
             try:
-                doc = await converter.convert_file(temp_path)
+                effective_uri = source_uri or source
+                doc = await converter.convert_file(temp_path, source_uri=effective_uri)
                 _warn_if_descriptions_missing(config, doc, source)
                 return doc
             finally:
@@ -126,14 +136,15 @@ async def convert(
             raise ValueError(f"File does not exist: {file_path}")
         if file_path.suffix.lower() not in converter.supported_extensions:
             raise ValueError(f"Unsupported file extension: {file_path.suffix}")
-        doc = await converter.convert_file(file_path)
+        effective_uri = source_uri or file_path.absolute().as_uri()
+        doc = await converter.convert_file(file_path, source_uri=effective_uri)
         _warn_if_descriptions_missing(config, doc, str(file_path))
         return doc
 
     else:
         # Raw text content — HTML and markdown can still embed pictures
         # via <img>/![](...) so the same description check applies.
-        doc = await converter.convert_text(source, format=format)
+        doc = await converter.convert_text(source, format=format, source_uri=source_uri)
         _warn_if_descriptions_missing(config, doc, "<text input>")
         return doc
 
diff --git a/haiku_rag_slim/haiku/rag/converters/base.py b/haiku_rag_slim/haiku/rag/converters/base.py
index e1ccbc7a..d6aea337 100644
--- a/haiku_rag_slim/haiku/rag/converters/base.py
+++ b/haiku_rag_slim/haiku/rag/converters/base.py
@@ -26,11 +26,18 @@ class DocumentConverter(ABC):
         pass
 
     @abstractmethod
-    async def convert_file(self, path: Path) -> "DoclingDocument":
+    async def convert_file(
+        self, path: Path, source_uri: str | None = None
+    ) -> "DoclingDocument":
         """Convert a file to DoclingDocument format.
 
         Args:
             path: Path to the file to convert.
+            source_uri: Optional origin URI (e.g. the URL the file was
+                downloaded from) used by docling's HTML/Markdown backends to
+                resolve relative `<img src="/path">` references. Ignored by
+                converters that have no equivalent backend option (notably
+                docling-serve).
 
         Returns:
             DoclingDocument representation of the file.
@@ -44,7 +51,11 @@ class DocumentConverter(ABC):
 
     @abstractmethod
     async def convert_text(
-        self, text: str, name: str = "content.md", format: str = "md"
+        self,
+        text: str,
+        name: str = "content.md",
+        format: str = "md",
+        source_uri: str | None = None,
     ) -> "DoclingDocument":
         """Convert text content to DoclingDocument format.
 
@@ -53,6 +64,8 @@ class DocumentConverter(ABC):
             name: The name to use for the document (defaults to "content.md").
             format: The format of the text content ("md", "html", or "plain").
                 Defaults to "md". Use "plain" for plain text without parsing.
+            source_uri: Optional origin URI used by docling's HTML/Markdown
+                backends to resolve relative image references.
 
         Returns:
             DoclingDocument representation of the text.
diff --git a/haiku_rag_slim/haiku/rag/converters/docling_local.py b/haiku_rag_slim/haiku/rag/converters/docling_local.py
index a63564b8..3028b59c 100644
--- a/haiku_rag_slim/haiku/rag/converters/docling_local.py
+++ b/haiku_rag_slim/haiku/rag/converters/docling_local.py
@@ -155,13 +155,20 @@ class DoclingLocalConverter(DocumentConverter):
 
         return pipeline_options
 
-    def _build_format_options(self) -> "dict[InputFormat, FormatOption]":
+    def _build_format_options(
+        self, source_uri: str | None = None
+    ) -> "dict[InputFormat, FormatOption]":
         """Per-format options shared between file and text conversion paths.
 
         Every wired FormatOption gets the same `PdfPipelineOptions` instance so
         picture-description / classification / chart settings apply uniformly
         across PDF, IMAGE, HTML, MD, DOCX, PPTX. HTML and Markdown additionally
         receive backend options gated on `fetch_remote_images`.
+
+        Args:
+            source_uri: Origin URI used by the HTML and Markdown backends to
+                resolve relative `<img src="/path">` references (e.g. when
+                ingesting a downloaded HTML page).
         """
         from docling.backend.docling_parse_backend import DoclingParseDocumentBackend
         from docling.datamodel.backend_options import (
@@ -177,10 +184,12 @@ class DoclingLocalConverter(DocumentConverter):
             PowerpointFormatOption,
             WordFormatOption,
         )
+        from pydantic import AnyUrl
 
         opts = self.config.processing.conversion_options
         pipeline_options = self._build_pipeline_options()
         fetch = opts.fetch_remote_images
+        source_url = AnyUrl(source_uri) if source_uri else None
 
         return {
             InputFormat.PDF: PdfFormatOption(
@@ -193,6 +202,7 @@ class DoclingLocalConverter(DocumentConverter):
                 backend_options=HTMLBackendOptions(
                     fetch_images=fetch,
                     enable_remote_fetch=fetch,
+                    source_uri=source_url,
                 ),
             ),
             InputFormat.MD: MarkdownFormatOption(
@@ -200,27 +210,36 @@ class DoclingLocalConverter(DocumentConverter):
                 backend_options=MarkdownBackendOptions(
                     fetch_images=fetch,
                     enable_remote_fetch=fetch,
+                    source_uri=source_url,
                 ),
             ),
             InputFormat.DOCX: WordFormatOption(pipeline_options=pipeline_options),
             InputFormat.PPTX: PowerpointFormatOption(pipeline_options=pipeline_options),
         }
 
-    def _sync_convert_docling_file(self, path: Path) -> "DoclingDocument":
+    def _sync_convert_docling_file(
+        self, path: Path, source_uri: str | None = None
+    ) -> "DoclingDocument":
         """Synchronous conversion of docling-supported files."""
         from docling.document_converter import (
             DocumentConverter as DoclingDocConverter,
         )
 
-        converter = DoclingDocConverter(format_options=self._build_format_options())
+        converter = DoclingDocConverter(
+            format_options=self._build_format_options(source_uri=source_uri)
+        )
         result = converter.convert(path)
         return result.document
 
-    async def convert_file(self, path: Path) -> "DoclingDocument":
+    async def convert_file(
+        self, path: Path, source_uri: str | None = None
+    ) -> "DoclingDocument":
         """Convert a file to DoclingDocument using local docling.
 
         Args:
             path: Path to the file to convert.
+            source_uri: Optional origin URI used by docling's HTML/Markdown
+                backends to resolve relative image references.
 
         Returns:
             DoclingDocument representation of the file.
@@ -232,21 +251,33 @@ class DoclingLocalConverter(DocumentConverter):
             file_extension = path.suffix.lower()
 
             if file_extension in self.docling_extensions:
-                return await asyncio.to_thread(self._sync_convert_docling_file, path)
+                return await asyncio.to_thread(
+                    self._sync_convert_docling_file, path, source_uri
+                )
             elif file_extension in TextFileHandler.text_extensions:
                 content = await asyncio.to_thread(path.read_text, encoding="utf-8")
                 prepared_content = TextFileHandler.prepare_text_content(
                     content, file_extension
                 )
-                return await self.convert_text(prepared_content, name=f"{path.stem}.md")
+                return await self.convert_text(
+                    prepared_content,
+                    name=f"{path.stem}.md",
+                    source_uri=source_uri,
+                )
             else:
                 content = await asyncio.to_thread(path.read_text, encoding="utf-8")
-                return await self.convert_text(content, name=f"{path.stem}.md")
+                return await self.convert_text(
+                    content, name=f"{path.stem}.md", source_uri=source_uri
+                )
         except Exception:
             raise ValueError(f"Failed to parse file: {path}")
 
     async def convert_text(
-        self, text: str, name: str = "content.md", format: str = "md"
+        self,
+        text: str,
+        name: str = "content.md",
+        format: str = "md",
+        source_uri: str | None = None,
     ) -> "DoclingDocument":
         """Convert text content to DoclingDocument using local docling.
 
@@ -255,6 +286,8 @@ class DoclingLocalConverter(DocumentConverter):
             name: The name to use for the document (defaults to "content.md").
             format: The format of the text content ("md", "html", or "plain").
                 Defaults to "md". Use "plain" for plain text without parsing.
+            source_uri: Optional origin URI used by docling's HTML/Markdown
+                backends to resolve relative image references.
 
         Returns:
             DoclingDocument representation of the text.
@@ -275,12 +308,14 @@ class DoclingLocalConverter(DocumentConverter):
 
         try:
             return await asyncio.to_thread(
-                self._sync_convert_docling_text, text, doc_name
+                self._sync_convert_docling_text, text, doc_name, source_uri
             )
         except Exception as e:
             raise ValueError(f"Failed to convert text to DoclingDocument: {e}")
 
-    def _sync_convert_docling_text(self, text: str, doc_name: str) -> "DoclingDocument":
+    def _sync_convert_docling_text(
+        self, text: str, doc_name: str, source_uri: str | None = None
+    ) -> "DoclingDocument":
         """Synchronous text-to-DoclingDocument using the shared format options."""
         from io import BytesIO
 
@@ -292,7 +327,9 @@ class DoclingLocalConverter(DocumentConverter):
 
         bytes_io = BytesIO(text.encode("utf-8"))
         doc_stream = DocumentStream(name=doc_name, stream=bytes_io)
-        converter = DoclingDocConverter(format_options=self._build_format_options())
+        converter = DoclingDocConverter(
+            format_options=self._build_format_options(source_uri=source_uri)
+        )
         try:
             result = converter.convert(doc_stream)
             return result.document
diff --git a/haiku_rag_slim/haiku/rag/converters/docling_serve.py b/haiku_rag_slim/haiku/rag/converters/docling_serve.py
index ea3fe173..68b6876a 100644
--- a/haiku_rag_slim/haiku/rag/converters/docling_serve.py
+++ b/haiku_rag_slim/haiku/rag/converters/docling_serve.py
@@ -226,11 +226,16 @@ class DoclingServeConverter(DocumentConverter):
         )
         return self._parse_zip_to_docling(zip_bytes, name)
 
-    async def convert_file(self, path: Path) -> "DoclingDocument":
+    async def convert_file(
+        self, path: Path, source_uri: str | None = None
+    ) -> "DoclingDocument":
         """Convert a file to DoclingDocument using docling-serve.
 
         Args:
             path: Path to the file to convert.
+            source_uri: Ignored. docling-serve has no API path for
+                ``HTMLBackendOptions.source_uri``; the kwarg is accepted for
+                interface compatibility with docling-local.
 
         Returns:
             DoclingDocument representation of the file.
@@ -261,7 +266,11 @@ class DoclingServeConverter(DocumentConverter):
     SUPPORTED_FORMATS = ("md", "html", "plain")
 
     async def convert_text(
-        self, text: str, name: str = "content.md", format: str = "md"
+        self,
+        text: str,
+        name: str = "content.md",
+        format: str = "md",
+        source_uri: str | None = None,
     ) -> "DoclingDocument":
         """Convert text content to DoclingDocument via docling-serve.
 
@@ -272,6 +281,9 @@ class DoclingServeConverter(DocumentConverter):
             name: The name to use for the document (defaults to "content.md").
             format: The format of the text content ("md", "html", or "plain").
                 Defaults to "md". Use "plain" for plain text without parsing.
+            source_uri: Ignored. docling-serve has no API path for
+                ``HTMLBackendOptions.source_uri``; the kwarg is accepted for
+                interface compatibility with docling-local.
 
         Returns:
             DoclingDocument representation of the text.
diff --git a/tests/test_converters.py b/tests/test_converters.py
index d5e17645..15c396a4 100644
--- a/tests/test_converters.py
+++ b/tests/test_converters.py
@@ -473,6 +473,69 @@ class TestDoclingLocalConverter:
         assert md_bo.fetch_images is False
         assert md_bo.enable_remote_fetch is False
 
+    def test_build_format_options_threads_source_uri(self, config):
+        """`_build_format_options(source_uri=...)` plumbs the URI into the
+        HTML and Markdown backend options so docling can resolve relative
+        `<img src="/foo.jpg">` paths during URL ingest."""
+        from docling.datamodel.backend_options import (
+            HTMLBackendOptions,
+            MarkdownBackendOptions,
+        )
+        from docling.datamodel.base_models import InputFormat
+
+        converter = DoclingLocalConverter(config)
+        opts = converter._build_format_options(source_uri="https://example.com/article")
+
+        html_bo = opts[InputFormat.HTML].backend_options
+        md_bo = opts[InputFormat.MD].backend_options
+        assert isinstance(html_bo, HTMLBackendOptions)
+        assert str(html_bo.source_uri) == "https://example.com/article"
+        assert isinstance(md_bo, MarkdownBackendOptions)
+        assert str(md_bo.source_uri) == "https://example.com/article"
+
+        # No source_uri ⇒ both stay None
+        opts_no_uri = converter._build_format_options()
+        html_bo = opts_no_uri[InputFormat.HTML].backend_options
+        md_bo = opts_no_uri[InputFormat.MD].backend_options
+        assert isinstance(html_bo, HTMLBackendOptions)
+        assert html_bo.source_uri is None
+        assert isinstance(md_bo, MarkdownBackendOptions)
+        assert md_bo.source_uri is None
+
+    @pytest.mark.asyncio
+    async def test_convert_text_html_source_uri_resolves_relative_img(
+        self, config, monkeypatch
+    ):
+        """`convert_text(..., source_uri=...)` lets docling resolve a relative
+        `<img src="/path">` against the source URL. We patch the docling HTML
+        backend's `_load_image_data` to capture the resolved absolute URL
+        instead of doing a real network fetch."""
+        captured: list[str] = []
+
+        def fake_load_image_data(self, src_loc: str):
+            captured.append(src_loc)
+            return None  # docling treats as a fetch failure → placeholder
+
+        from docling.backend import html_backend as html_backend_module
+
+        monkeypatch.setattr(
+            html_backend_module.HTMLDocumentBackend,
+            "_load_image_data",
+            fake_load_image_data,
+        )
+
+        html = '<html><body><img src="/static/cat.jpg"/></body></html>'
+        converter = DoclingLocalConverter(config)
+
+        await converter.convert_text(
+            html, format="html", source_uri="https://example.com/article"
+        )
+
+        assert captured, "_load_image_data should have been invoked"
+        assert captured[0] == "https://example.com/static/cat.jpg", (
+            f"Expected absolute URL resolved via source_uri, got {captured[0]!r}"
+        )
+
     @pytest.mark.asyncio
     async def test_convert_pdf_with_picture_images(self, config):
         """Picture bytes are produced by the local converter for PDFs that
diff --git a/tests/test_processing.py b/tests/test_processing.py
index b02624fe..f6000a74 100644
--- a/tests/test_processing.py
+++ b/tests/test_processing.py
@@ -143,11 +143,15 @@ async def test_convert_emits_warning_via_chokepoint(
         def supported_extensions(self) -> list[str]:
             return [".pdf"]
 
-        async def convert_file(self, path: Path):
+        async def convert_file(self, path: Path, source_uri: str | None = None):
             return _doc_with_pictures(with_descriptions=False)
 
         async def convert_text(
-            self, text: str, name: str = "content.md", format: str = "md"
+            self,
+            text: str,
+            name: str = "content.md",
+            format: str = "md",
+            source_uri: str | None = None,
         ):
             return _doc_without_pictures()
 
@@ -180,11 +184,15 @@ async def test_convert_text_path_also_warns(monkeypatch, caplog_warnings):
         def supported_extensions(self) -> list[str]:
             return [".html"]
 
-        async def convert_file(self, path: Path):
+        async def convert_file(self, path: Path, source_uri: str | None = None):
             return _doc_without_pictures()
 
         async def convert_text(
-            self, text: str, name: str = "content.md", format: str = "md"
+            self,
+            text: str,
+            name: str = "content.md",
+            format: str = "md",
+            source_uri: str | None = None,
         ):
             return _doc_with_pictures(with_descriptions=False)