diff --git a/DEPS b/DEPS
index e66ab93..fb20d07 100644
--- a/DEPS
+++ b/DEPS
@@ -140,7 +140,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling pdfium_tests
   # and whatever else without interference from each other.
-  'pdfium_tests_revision': '4d6dd6a870949fcca68fc689f12a8d093f55ab74',
+  'pdfium_tests_revision': '14a56b4fbdda976f1d1686f0c2dcfc1497e4547d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling resultdb
   # and whatever else without interference from each other.
diff --git a/core/fxge/skia/fx_skia_device.cpp b/core/fxge/skia/fx_skia_device.cpp
index 2e048c5..c2da0aa 100644
--- a/core/fxge/skia/fx_skia_device.cpp
+++ b/core/fxge/skia/fx_skia_device.cpp
@@ -45,7 +45,6 @@
 #include "core/fxge/text_char_pos.h"
 #include "third_party/base/check.h"
 #include "third_party/base/check_op.h"
-#include "third_party/base/cxx17_backports.h"
 #include "third_party/base/notreached.h"
 #include "third_party/base/numerics/safe_conversions.h"
 #include "third_party/base/ptr_util.h"
@@ -2180,49 +2179,26 @@
     SkPaint paint;
     SetBitmapPaint(pSource->IsMaskFormat(), !m_FillOptions.aliased_path,
                    bitmap_alpha, argb, blend_type, &paint);
-    // TODO(caryclark) Once Skia supports 8 bit src to 8 bit dst remove this
-    if (m_pBitmap && m_pBitmap->GetBPP() == 8 && pSource->GetBPP() == 8) {
-      SkMatrix inv;
-      if (!skMatrix.invert(&inv)) {
-        return false;
-      }
-      for (int y = 0; y < m_pBitmap->GetHeight(); ++y) {
-        for (int x = 0; x < m_pBitmap->GetWidth(); ++x) {
-          SkPoint src = {x + 0.5f, y + 0.5f};
-          inv.mapPoints(&src, 1);
-          // SkMatrix::mapPoints() can sometimes output NaN values or values
-          // outside the boundary of the `skBitmap`. Therefore clamping these
-          // values is necessary before getting color information within the
-          // `skBitmap`.
-          src.fX =
-              isnan(src.fX) ? 0.5f : pdfium::clamp(src.fX, 0.5f, width - 0.5f);
-          src.fY =
-              isnan(src.fY) ? 0.5f : pdfium::clamp(src.fY, 0.5f, height - 0.5f);
 
-          m_pBitmap->SetPixel(x, y, skBitmap.getColor(src.fX, src.fY));
-        }
+    bool use_interpolate_bilinear = options.bInterpolateBilinear;
+    if (!use_interpolate_bilinear) {
+      float dest_width = ceilf(matrix.GetXUnit());
+      float dest_height = ceilf(matrix.GetYUnit());
+      if (pdfium::base::IsValueInRangeForNumericType<int>(dest_width) &&
+          pdfium::base::IsValueInRangeForNumericType<int>(dest_height)) {
+        use_interpolate_bilinear = CStretchEngine::UseInterpolateBilinear(
+            options, static_cast<int>(dest_width),
+            static_cast<int>(dest_height), width, height);
       }
-    } else {
-      bool use_interpolate_bilinear = options.bInterpolateBilinear;
-      if (!use_interpolate_bilinear) {
-        float dest_width = ceilf(matrix.GetXUnit());
-        float dest_height = ceilf(matrix.GetYUnit());
-        if (pdfium::base::IsValueInRangeForNumericType<int>(dest_width) &&
-            pdfium::base::IsValueInRangeForNumericType<int>(dest_height)) {
-          use_interpolate_bilinear = CStretchEngine::UseInterpolateBilinear(
-              options, static_cast<int>(dest_width),
-              static_cast<int>(dest_height), width, height);
-        }
-      }
-      SkSamplingOptions sampling_options;
-      if (use_interpolate_bilinear) {
-        sampling_options =
-            SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear);
-      }
-      m_pCanvas->drawImageRect(skBitmap.asImage(),
-                               SkRect::MakeWH(width, height), sampling_options,
-                               &paint);
     }
+    SkSamplingOptions sampling_options;
+    if (use_interpolate_bilinear) {
+      sampling_options =
+          SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear);
+    }
+
+    m_pCanvas->drawImageRect(skBitmap.asImage(), SkRect::MakeWH(width, height),
+                             sampling_options, &paint);
   }
   DebugValidate(m_pBitmap, m_pBackdropBitmap);
   return true;
diff --git a/fpdfsdk/fpdf_edit_embeddertest.cpp b/fpdfsdk/fpdf_edit_embeddertest.cpp
index 2cbbd29..09c96bb 100644
--- a/fpdfsdk/fpdf_edit_embeddertest.cpp
+++ b/fpdfsdk/fpdf_edit_embeddertest.cpp
@@ -3926,12 +3926,12 @@
 
   const char* smask_checksum = []() {
     if (CFX_DefaultRenderDevice::SkiaIsDefaultRenderer())
-      return "5ddf871ab737746b1b8390f0bc4ec52c";
+      return "0653a18f3bf9b4d8413a2aa10bc11c38";
     return "5a3ae4a660ce919e29c42ec2258142f1";
   }();
   const char* no_smask_checksum = []() {
     if (CFX_DefaultRenderDevice::SkiaIsDefaultRenderer())
-      return "6bb3b5bd93e26f4c2e52db64a1f57686";
+      return "d568afc908d595224d804448d5d3672f";
     return "67504e83f5d78214ea00efc19082c5c1";
   }();
 
diff --git a/testing/SUPPRESSIONS b/testing/SUPPRESSIONS
index f5bb133..1bf5907 100644
--- a/testing/SUPPRESSIONS
+++ b/testing/SUPPRESSIONS
@@ -267,9 +267,6 @@
 # TODO(pdfium:1863): Remove after associated bug is fixed
 new_pdfsign1.pdf * * * skia
 
-# TODO(pdfium:1976): Remove after associated bug is fixed
-new_pdfsign4.pdf * * * skia
-
 new_signature1.pdf mac * * *
 new_signature2.pdf mac * * *
 new_stamp4.pdf mac * * *
@@ -403,9 +400,6 @@
 # TODO(pdfium:1973): Remove after associated bug is fixed
 bug_1973.in * * * agg,skia
 
-# TODO(pdfium:1976): Remove after associated bug is fixed
-bug_1976.in * * * skia
-
 # TODO(chromium:237527): Remove after associated bug is fixed
 bug_237527_1.in * * * *
 
diff --git a/testing/resources/pixel/bug_1236_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1236_expected_skia.pdf.0.png
index abe6b46..248125f 100644
--- a/testing/resources/pixel/bug_1236_expected_skia.pdf.0.png
+++ b/testing/resources/pixel/bug_1236_expected_skia.pdf.0.png
Binary files differ
diff --git a/testing/resources/pixel/bug_1395648_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1395648_expected_skia.pdf.0.png
index 6af289a..80a944b 100644
--- a/testing/resources/pixel/bug_1395648_expected_skia.pdf.0.png
+++ b/testing/resources/pixel/bug_1395648_expected_skia.pdf.0.png
Binary files differ
diff --git a/testing/resources/pixel/matte_expected_skia.pdf.0.png b/testing/resources/pixel/matte_expected_skia.pdf.0.png
index 8350349..bdab404 100644
--- a/testing/resources/pixel/matte_expected_skia.pdf.0.png
+++ b/testing/resources/pixel/matte_expected_skia.pdf.0.png
Binary files differ