diff --git a/fpdfsdk/fpdf_transformpage.cpp b/fpdfsdk/fpdf_transformpage.cpp
index 7b63e1a..2b86abb 100644
--- a/fpdfsdk/fpdf_transformpage.cpp
+++ b/fpdfsdk/fpdf_transformpage.cpp
@@ -235,8 +235,10 @@
     else
       continue;
 
-    CFX_Matrix m = CFXMatrixFromFSMatrix(*matrix);
-    pDict->SetMatrixFor("Matrix", pDict->GetMatrixFor("Matrix") * m);
+    if (matrix) {
+      CFX_Matrix m = CFXMatrixFromFSMatrix(*matrix);
+      pDict->SetMatrixFor("Matrix", pDict->GetMatrixFor("Matrix") * m);
+    }
   }
 
   return true;
diff --git a/fpdfsdk/fpdf_transformpage_embeddertest.cpp b/fpdfsdk/fpdf_transformpage_embeddertest.cpp
index 2619747..2a80e4e 100644
--- a/fpdfsdk/fpdf_transformpage_embeddertest.cpp
+++ b/fpdfsdk/fpdf_transformpage_embeddertest.cpp
@@ -229,3 +229,19 @@
 
   UnloadPage(page);
 }
+
+TEST_F(FPDFTransformEmbedderTest, TransFormWithClipWithPatterns) {
+  const FS_MATRIX half_matrix{0.5, 0, 0, 0.5, 0, 0};
+  const FS_RECTF clip_rect = {0.0f, 0.0f, 20.0f, 10.0f};
+
+  ASSERT_TRUE(OpenDocument("bug_547706.pdf"));
+
+  FPDF_PAGE page = LoadPage(0);
+  ASSERT_TRUE(page);
+
+  EXPECT_TRUE(FPDFPage_TransFormWithClip(page, &half_matrix, nullptr));
+  EXPECT_TRUE(FPDFPage_TransFormWithClip(page, nullptr, &clip_rect));
+  EXPECT_TRUE(FPDFPage_TransFormWithClip(page, &half_matrix, &clip_rect));
+
+  UnloadPage(page);
+}