diff --git a/PdfFile/PdfWriter_empty.cpp b/PdfFile/PdfWriter_empty.cpp
index e521e656f1..e9d1215bb5 100644
--- a/PdfFile/PdfWriter_empty.cpp
+++ b/PdfFile/PdfWriter_empty.cpp
@@ -6,7 +6,7 @@ CPdfWriter::~CPdfWriter() {}
 int CPdfWriter::SaveToFile(const std::wstring& wsPath) { return 0; }
 void CPdfWriter::SetPassword(const std::wstring& wsPassword) {}
 void CPdfWriter::SetDocumentID(const std::wstring& wsDocumentID) {}
-void CPdfWriter::SetCore(const std::wstring& wsCore) {}
+void CPdfWriter::SetDocumentInfo(const std::wstring& wsTitle, const std::wstring& wsCreator, const std::wstring& wsSubject, const std::wstring& wsKeywords) {}
 HRESULT CPdfWriter::NewPage() { return 0; }
 HRESULT CPdfWriter::get_Height(double* dHeight) { return 0; }
 HRESULT CPdfWriter::put_Height(const double& dHeight) { return 0; }
diff --git a/PdfFile/SrcReader/GfxClip.h b/PdfFile/SrcReader/GfxClip.h
index 506274e74c..e3c5e4b812 100644
--- a/PdfFile/SrcReader/GfxClip.h
+++ b/PdfFile/SrcReader/GfxClip.h
@@ -296,6 +296,7 @@ public:
     GfxClip()
     {
         m_pTextClip = new GfxTextClip();
+        m_bChanged = true;
     }
 
     ~GfxClip()
diff --git a/PdfFile/SrcReader/RendererOutputDev.cpp b/PdfFile/SrcReader/RendererOutputDev.cpp
index 303e186013..fbfe0e9597 100644
--- a/PdfFile/SrcReader/RendererOutputDev.cpp
+++ b/PdfFile/SrcReader/RendererOutputDev.cpp
@@ -4183,7 +4183,10 @@ namespace PdfReader
         ImageStream *pImageStream = new ImageStream(pStream, nWidth, nComponentsCount, pColorMap->getBits());
         pImageStream->reset();
 
-        unsigned char unAlpha = m_bTransparentGroup ? ((m_bIsolatedTransparentGroup || m_bTransparentGroupSoftMask) ? 0 : 255.0 * pGState->getFillOpacity()) : 255;
+        bool bTransperent = false;
+        for (const bool& b : m_arrTransparentGroupSoftMask)
+            bTransperent = b || bTransperent;
+        unsigned char unAlpha = m_bTransparentGroup ? ((m_bIsolatedTransparentGroup && bTransperent) ? 0 : 255.0 * pGState->getFillOpacity()) : 255;
 
         int nStride = pImageStream->getVals();
         int nComps = pImageStream->getComps();
@@ -4849,7 +4852,11 @@ namespace PdfReader
             }
 
             if (m_sClip[i].GetPathNum() > 0)
-                break;
+            {
+                if (!m_sClip[i].IsChanged())
+                    break;
+                m_sClip[i].SetChanged(false);
+            }
         }
 
         m_bClipChanged = false;