diff --git a/anonymizer_core_refactored_onnx.py b/anonymizer_core_refactored_onnx.py
index 71c8ec3..5eea678 100644
--- a/anonymizer_core_refactored_onnx.py
+++ b/anonymizer_core_refactored_onnx.py
@@ -3935,8 +3935,12 @@ def redact_pdf_vector(original_pdf: Path, audit: List[PiiHit], out_pdf: Path, oc
             page.add_redact_annot(r, fill=(0, 0, 0))
         try:
             page.apply_redactions()
-        except Exception:
-            pass
+        except Exception as e:
+            # Q-1 : ne plus avaler silencieusement. Si apply_redactions échoue,
+            # le PDF sort SANS rédaction → fuite RGPD. On log + remonte pour
+            # que process_pdf flag la quarantaine PDF.
+            log.warning("apply_redactions failed on page %d: %s", page.number, e)
+            raise
     doc.save(str(out_pdf), deflate=True, garbage=4, clean=True, incremental=False)
     doc.close()