diff --git a/core/fpdfapi/render/cpdf_imagerenderer.cpp b/core/fpdfapi/render/cpdf_imagerenderer.cpp
index 5fffbff..aa2038a 100644
--- a/core/fpdfapi/render/cpdf_imagerenderer.cpp
+++ b/core/fpdfapi/render/cpdf_imagerenderer.cpp
@@ -309,11 +309,11 @@
 
   CFX_Matrix new_matrix = GetDrawMatrix(rect);
   CFX_DefaultRenderDevice bitmap_device1;
-  if (!bitmap_device1.Create(rect.Width(), rect.Height(), FXDIB_Format::kRgb32,
+  if (!bitmap_device1.Create(rect.Width(), rect.Height(), FXDIB_Format::kArgb,
                              nullptr)) {
     return true;
   }
-  bitmap_device1.GetBitmap()->Clear(0xffffff);
+  bitmap_device1.GetBitmap()->Clear(0);
 
   CPDF_RenderStatus bitmap_render(m_pRenderStatus->GetContext(),
                                   &bitmap_device1);
diff --git a/testing/SUPPRESSIONS b/testing/SUPPRESSIONS
index e9b32ac..c5c94b8 100644
--- a/testing/SUPPRESSIONS
+++ b/testing/SUPPRESSIONS
@@ -404,6 +404,9 @@
 # TODO(pdfium:1973): Remove after associated bug is fixed
 bug_1973.in * * * agg,skia
 
+# TODO(pdfium:1968): Remove after associated bug is fixed
+bug_1966.in * * * skia
+
 # TODO(chromium:237527): Remove after associated bug is fixed
 bug_237527_1.in * * * *
 
diff --git a/testing/resources/pixel/bug_1966.in b/testing/resources/pixel/bug_1966.in
new file mode 100644
index 0000000..b52a6cb
--- /dev/null
+++ b/testing/resources/pixel/bug_1966.in
@@ -0,0 +1,121 @@
+{{header}}
+{{object 1 0}} <<
+  /Type /Catalog
+  /Pages 2 0 R
+>>
+endobj
+{{object 2 0}} <<
+  /Type /Pages
+  /Count 1
+  /Kids [3 0 R]
+  /MediaBox [0 0 128.571 128.571]
+>>
+endobj
+{{object 3 0}} <<
+  /Type /Page
+  /Parent 2 0 R
+  /Contents 7 0 R
+  /Resources <<
+    /XObject <<
+      /Im1 4 0 R
+    >>
+    /Pattern <<
+      /P1 5 0 R
+      /P2 6 0 R
+    >>
+  >>
+>>
+endobj
+{{object 4 0}} <<
+  /Type /XObject
+  /Subtype /Image
+  /BitsPerComponent 1
+  /Filter /ASCIIHexDecode
+  /Height 40
+  /ImageMask true
+  /Width 80
+  {{streamlen}}
+>>
+stream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+endstream
+endobj
+{{object 5 0}} <<
+  /Type /Pattern
+  /PaintType 1
+  /PatternType 1
+  /TilingType 1
+  /BBox [0 0 128.571 128.571]
+  /XStep 128.571
+  /YStep 128.571
+  {{streamlen}}
+>>
+stream
+q
+0.0 0.0 0.0 rg
+0 128.571 m
+128.571 128.571 l
+128.571 64 l
+0 64 l
+f
+Q
+endstream
+endobj
+{{object 6 0}} <<
+  /Type /Pattern
+  /PaintType 1
+  /PatternType 1
+  /TilingType 1
+  /BBox [0 0 128.571 128.571]
+  /XStep 128.571
+  /YStep 128.571
+  {{streamlen}}
+>>
+stream
+% second pattern
+q
+0.0 0.0 0.0 rg
+0 64 m
+128.571 64 l
+128.571 0 l
+0 0 l
+f
+Q
+endstream
+endobj
+{{object 7 0}} <<
+  {{streamlen}}
+>>
+stream
+q
+/Pattern cs
+/P1 scn
+q
+128.571 0 0 128.571 0 0 cm
+/Im1 Do
+Q
+/P2 scn
+q
+128.571 0 0 128.571 0 0 cm
+/Im1 Do
+Q
+Q
+endstream
+endobj
+{{xref}}
+{{trailer}}
+{{startxref}}
+%%EOF
\ No newline at end of file
diff --git a/testing/resources/pixel/bug_1966_expected.pdf.0.png b/testing/resources/pixel/bug_1966_expected.pdf.0.png
new file mode 100644
index 0000000..47d12bd
--- /dev/null
+++ b/testing/resources/pixel/bug_1966_expected.pdf.0.png
Binary files differ