Expose Microsoft InvisMark removal signal

src/remove_ai_watermarks/__init__.py

@@ -32,7 +32,7 @@ _os.environ.setdefault("TRANSFORMERS_VERBOSITY", "error")
 _warnings.filterwarnings("ignore", message=r".*ImageProcessorFast.*")
 
 
-__version__ = "0.30.0"
+__version__ = "0.30.1"
 
 __all__ = [
     "BatchSummary",

src/remove_ai_watermarks/_internal/c2pa.py

@@ -305,11 +305,15 @@ def c2pa_info_has_invalid_credential(info: dict[str, Any]) -> bool:
     return info.get("c2pa_integrity") == "invalid" or info.get("c2pa_signature") == "invalid"
 
 
+def c2pa_info_has_invismark(info: dict[str, Any]) -> bool:
+    """Return whether parsed C2PA info declares Microsoft InvisMark."""
+    soft_bindings = info.get("soft_binding_vendors")
+    return isinstance(soft_bindings, list) and "Microsoft InvisMark" in soft_bindings
+
+
 def c2pa_info_has_removal_hint(info: dict[str, Any]) -> bool:
     """Return whether a C2PA AI or watermark claim should keep removal fail-safe."""
-    soft_bindings = info.get("soft_binding_vendors")
-    has_invismark = isinstance(soft_bindings, list) and "Microsoft InvisMark" in soft_bindings
-    return bool(info.get("ai_source_kind") or info.get("synthid_watermark") or has_invismark)
+    return bool(info.get("ai_source_kind") or info.get("synthid_watermark") or c2pa_info_has_invismark(info))
 
 
 def _has_suffix(codes: list[str], suffixes: tuple[str, ...]) -> bool:

src/remove_ai_watermarks/identify.py

@@ -29,6 +29,7 @@ from typing import TYPE_CHECKING, Any, cast
 from remove_ai_watermarks._internal.c2pa import (
     c2pa_info_from_manifest_store,
     c2pa_info_has_invalid_credential,
+    c2pa_info_has_invismark,
     c2pa_info_has_removal_hint,
     cbor_text_after,
     extract_c2pa_info,
@@ -1287,6 +1288,17 @@ def _identify_from_evidence(
                 "high" if c2pa_level == "verified" else "medium",
             )
         )
+        if c2pa_info_has_invismark(info):
+            # Keep the generic soft-binding row for schema-1 compatibility, and add
+            # the pixel-removal target as its own stable signal for clients that need
+            # to select diffusion without parsing human-readable detail.
+            signals.append(
+                Signal(
+                    "invismark",
+                    f"Microsoft InvisMark pixel watermark: {soft_binding_details}",
+                    "high" if c2pa_level == "verified" else "medium",
+                )
+            )
         watermarks.append(f"Forensic watermark soft binding ({soft_binding_details})")
         caveats.append(_SOFT_BINDING_CAVEAT)