C++ CPDF_Dictionary::SetFor方法代码示例

FX_BOOL CPDF_PageOrganizer::PDFDocInit(CPDF_Document* pDestPDFDoc,
                                       CPDF_Document* pSrcPDFDoc) {
  if (!pDestPDFDoc || !pSrcPDFDoc)
    return FALSE;

  CPDF_Dictionary* pNewRoot = pDestPDFDoc->GetRoot();
  if (!pNewRoot)
    return FALSE;

  CPDF_Dictionary* DInfoDict = pDestPDFDoc->GetInfo();
  if (!DInfoDict)
    return FALSE;

  CFX_ByteString producerstr;
  producerstr.Format("PDFium");
  DInfoDict->SetFor("Producer", new CPDF_String(producerstr, FALSE));

  CFX_ByteString cbRootType = pNewRoot->GetStringFor("Type", "");
  if (cbRootType.IsEmpty())
    pNewRoot->SetFor("Type", new CPDF_Name("Catalog"));

  CPDF_Object* pElement = pNewRoot->GetObjectFor("Pages");
  CPDF_Dictionary* pNewPages =
      pElement ? ToDictionary(pElement->GetDirect()) : nullptr;
  if (!pNewPages) {
    pNewPages = new CPDF_Dictionary(pDestPDFDoc->GetByteStringPool());
    pNewRoot->SetReferenceFor("Pages", pDestPDFDoc,
                              pDestPDFDoc->AddIndirectObject(pNewPages));
  }

  CFX_ByteString cbPageType = pNewPages->GetStringFor("Type", "");
  if (cbPageType == "") {
    pNewPages->SetFor("Type", new CPDF_Name("Pages"));
  }

  if (!pNewPages->GetArrayFor("Kids")) {
    pNewPages->SetIntegerFor("Count", 0);
    pNewPages->SetReferenceFor("Kids", pDestPDFDoc,
                               pDestPDFDoc->AddIndirectObject(new CPDF_Array));
  }

  return TRUE;
}

void CPDF_Document::CreateNewDoc() {
  ASSERT(!m_pRootDict && !m_pInfoDict);
  m_pRootDict = new CPDF_Dictionary(m_pByteStringPool);
  m_pRootDict->SetNameFor("Type", "Catalog");
  AddIndirectObject(m_pRootDict);

  CPDF_Dictionary* pPages = new CPDF_Dictionary(m_pByteStringPool);
  pPages->SetNameFor("Type", "Pages");
  pPages->SetNumberFor("Count", 0);
  pPages->SetFor("Kids", new CPDF_Array);
  m_pRootDict->SetReferenceFor("Pages", this, AddIndirectObject(pPages));
  m_pInfoDict = new CPDF_Dictionary(m_pByteStringPool);
  AddIndirectObject(m_pInfoDict);
}

FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertClipPath(FPDF_PAGE page,
                                                       FPDF_CLIPPATH clipPath) {
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return;

  CPDF_Dictionary* pPageDict = pPage->GetDict();
  CPDF_Object* pContentObj = GetPageContent(pPageDict);
  if (!pContentObj)
    return;

  std::ostringstream strClip;
  CPDF_ClipPath* pClipPath = CPDFClipPathFromFPDFClipPath(clipPath);
  for (size_t i = 0; i < pClipPath->GetPathCount(); ++i) {
    CPDF_Path path = pClipPath->GetPath(i);
    if (path.GetPoints().empty()) {
      // Empty clipping (totally clipped out)
      strClip << "0 0 m W n ";
    } else {
      OutputPath(strClip, path);
      if (pClipPath->GetClipType(i) == FXFILL_WINDING)
        strClip << "W n\n";
      else
        strClip << "W* n\n";
    }
  }
  CPDF_Document* pDoc = pPage->GetDocument();
  if (!pDoc)
    return;

  CPDF_Stream* pStream =
      pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
  pStream->SetDataFromStringstream(&strClip);

  if (CPDF_Array* pArray = ToArray(pContentObj)) {
    pArray->InsertAt(0, pStream->MakeReference(pDoc));
  } else if (pContentObj->IsStream() && !pContentObj->IsInline()) {
    CPDF_Array* pContentArray = pDoc->NewIndirect<CPDF_Array>();
    pContentArray->Add(pStream->MakeReference(pDoc));
    pContentArray->Add(pContentObj->MakeReference(pDoc));
    pPageDict->SetFor(pdfium::page_object::kContents,
                      pContentArray->MakeReference(pDoc));
  }
}

DLLEXPORT FPDF_BOOL STDCALL FPDF_CopyViewerPreferences(FPDF_DOCUMENT dest_doc,
                                                       FPDF_DOCUMENT src_doc) {
  CPDF_Document* pDstDoc = CPDFDocumentFromFPDFDocument(dest_doc);
  if (!pDstDoc)
    return FALSE;

  CPDF_Document* pSrcDoc = CPDFDocumentFromFPDFDocument(src_doc);
  if (!pSrcDoc)
    return FALSE;

  CPDF_Dictionary* pSrcDict = pSrcDoc->GetRoot();
  pSrcDict = pSrcDict->GetDictFor("ViewerPreferences");
  if (!pSrcDict)
    return FALSE;

  CPDF_Dictionary* pDstDict = pDstDoc->GetRoot();
  if (!pDstDict)
    return FALSE;

  pDstDict->SetFor("ViewerPreferences", pSrcDict->CloneDirectObject());
  return TRUE;
}

size_t CPDF_Document::CalculateEncodingDict(int charset,
                                            CPDF_Dictionary* pBaseDict) {
  size_t i;
  for (i = 0; i < FX_ArraySize(g_FX_CharsetUnicodes); ++i) {
    if (g_FX_CharsetUnicodes[i].m_Charset == charset)
      break;
  }
  if (i == FX_ArraySize(g_FX_CharsetUnicodes))
    return i;
  CPDF_Dictionary* pEncodingDict = new CPDF_Dictionary(m_pByteStringPool);
  pEncodingDict->SetNameFor("BaseEncoding", "WinAnsiEncoding");
  CPDF_Array* pArray = new CPDF_Array;
  pArray->AddInteger(128);
  const uint16_t* pUnicodes = g_FX_CharsetUnicodes[i].m_pUnicodes;
  for (int j = 0; j < 128; j++) {
    CFX_ByteString name = PDF_AdobeNameFromUnicode(pUnicodes[j]);
    pArray->AddName(name.IsEmpty() ? ".notdef" : name);
  }
  pEncodingDict->SetFor("Differences", pArray);
  pBaseDict->SetReferenceFor("Encoding", this,
                             AddIndirectObject(pEncodingDict));

  return i;
}

FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPage_TransFormWithClip(FPDF_PAGE page,
                           const FS_MATRIX* matrix,
                           const FS_RECTF* clipRect) {
  if (!matrix && !clipRect)
    return false;

  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!pPage)
    return false;

  std::ostringstream textBuf;
  textBuf << "q ";

  if (clipRect) {
    CFX_FloatRect rect = CFXFloatRectFromFSRECTF(*clipRect);
    rect.Normalize();

    textBuf << ByteString::Format("%f %f %f %f re W* n ", rect.left,
                                  rect.bottom, rect.Width(), rect.Height());
  }
  if (matrix) {
    textBuf << ByteString::Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b,
                                  matrix->c, matrix->d, matrix->e, matrix->f);
  }

  CPDF_Dictionary* pPageDict = pPage->GetDict();
  CPDF_Object* pContentObj = GetPageContent(pPageDict);
  if (!pContentObj)
    return false;

  CPDF_Document* pDoc = pPage->GetDocument();
  if (!pDoc)
    return false;

  CPDF_Stream* pStream =
      pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
  pStream->SetDataFromStringstream(&textBuf);

  CPDF_Stream* pEndStream =
      pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
  pEndStream->SetData(ByteStringView(" Q").span());

  if (CPDF_Array* pContentArray = ToArray(pContentObj)) {
    pContentArray->InsertAt(0, pStream->MakeReference(pDoc));
    pContentArray->Add(pEndStream->MakeReference(pDoc));
  } else if (pContentObj->IsStream() && !pContentObj->IsInline()) {
    pContentArray = pDoc->NewIndirect<CPDF_Array>();
    pContentArray->Add(pStream->MakeReference(pDoc));
    pContentArray->Add(pContentObj->MakeReference(pDoc));
    pContentArray->Add(pEndStream->MakeReference(pDoc));
    pPageDict->SetFor(pdfium::page_object::kContents,
                      pContentArray->MakeReference(pDoc));
  }

  // Need to transform the patterns as well.
  CPDF_Dictionary* pRes =
      pPageDict->GetDictFor(pdfium::page_object::kResources);
  if (!pRes)
    return true;

  CPDF_Dictionary* pPatternDict = pRes->GetDictFor("Pattern");
  if (!pPatternDict)
    return true;

  CPDF_DictionaryLocker locker(pPatternDict);
  for (const auto& it : locker) {
    CPDF_Object* pObj = it.second.get();
    if (pObj->IsReference())
      pObj = pObj->GetDirect();

    CPDF_Dictionary* pDict = nullptr;
    if (pObj->IsDictionary())
      pDict = pObj->AsDictionary();
    else if (CPDF_Stream* pObjStream = pObj->AsStream())
      pDict = pObjStream->GetDict();
    else
      continue;

    if (matrix) {
      CFX_Matrix m = CFXMatrixFromFSMatrix(*matrix);
      pDict->SetMatrixFor("Matrix", pDict->GetMatrixFor("Matrix") * m);
    }
  }

  return true;
}

std::unique_ptr<CFDF_Document> CPDF_InterForm::ExportToFDF(
    const CFX_WideStringC& pdf_path,
    const std::vector<CPDF_FormField*>& fields,
    bool bIncludeOrExclude,
    bool bSimpleFileSpec) const {
  std::unique_ptr<CFDF_Document> pDoc = CFDF_Document::CreateNewDoc();
  if (!pDoc)
    return nullptr;

  CPDF_Dictionary* pMainDict = pDoc->GetRoot()->GetDictFor("FDF");
  if (!pdf_path.IsEmpty()) {
    if (bSimpleFileSpec) {
      CFX_WideString wsFilePath = CPDF_FileSpec::EncodeFileName(pdf_path);
      pMainDict->SetNewFor<CPDF_String>(
          "F", CFX_ByteString::FromUnicode(wsFilePath), false);
      pMainDict->SetNewFor<CPDF_String>("UF", PDF_EncodeText(wsFilePath),
                                        false);
    } else {
      CPDF_FileSpec filespec(pDoc->GetByteStringPool());
      filespec.SetFileName(pdf_path);
      pMainDict->SetFor("F", pdfium::WrapUnique(filespec.GetObj()));
    }
  }

  CPDF_Array* pFields = pMainDict->SetNewFor<CPDF_Array>("Fields");
  size_t nCount = m_pFieldTree->m_Root.CountFields();
  for (size_t i = 0; i < nCount; ++i) {
    CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(i);
    if (!pField || pField->GetType() == CPDF_FormField::PushButton)
      continue;

    uint32_t dwFlags = pField->GetFieldFlags();
    if (dwFlags & 0x04)
      continue;

    if (bIncludeOrExclude == pdfium::ContainsValue(fields, pField)) {
      if ((dwFlags & 0x02) != 0 && pField->m_pDict->GetStringFor("V").IsEmpty())
        continue;

      CFX_WideString fullname = FPDF_GetFullName(pField->GetFieldDict());
      auto pFieldDict =
          pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool());
      pFieldDict->SetNewFor<CPDF_String>("T", fullname);
      if (pField->GetType() == CPDF_FormField::CheckBox ||
          pField->GetType() == CPDF_FormField::RadioButton) {
        CFX_WideString csExport = pField->GetCheckValue(false);
        CFX_ByteString csBExport = PDF_EncodeText(csExport);
        CPDF_Object* pOpt = FPDF_GetFieldAttr(pField->m_pDict, "Opt");
        if (pOpt)
          pFieldDict->SetNewFor<CPDF_String>("V", csBExport, false);
        else
          pFieldDict->SetNewFor<CPDF_Name>("V", csBExport);
      } else {
        CPDF_Object* pV = FPDF_GetFieldAttr(pField->m_pDict, "V");
        if (pV)
          pFieldDict->SetFor("V", pV->CloneDirectObject());
      }
      pFields->Add(std::move(pFieldDict));
    }
  }
  return pDoc;
}

CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
  if (!pFieldDict->KeyExist("FT")) {
    // Key "FT" is required for terminal fields, it is also inheritable.
    CPDF_Dictionary* pParentDict = pFieldDict->GetDictFor("Parent");
    if (!pParentDict || !pParentDict->KeyExist("FT"))
      return nullptr;
  }

  CPDF_Dictionary* pDict = pFieldDict;
  CFX_WideString csWName = FPDF_GetFullName(pFieldDict);
  if (csWName.IsEmpty())
    return nullptr;

  CPDF_FormField* pField = nullptr;
  pField = m_pFieldTree->GetField(csWName);
  if (!pField) {
    CPDF_Dictionary* pParent = pFieldDict;
    if (!pFieldDict->KeyExist("T") &&
        pFieldDict->GetStringFor("Subtype") == "Widget") {
      pParent = pFieldDict->GetDictFor("Parent");
      if (!pParent)
        pParent = pFieldDict;
    }

    if (pParent && pParent != pFieldDict && !pParent->KeyExist("FT")) {
      if (pFieldDict->KeyExist("FT")) {
        CPDF_Object* pFTValue = pFieldDict->GetDirectObjectFor("FT");
        if (pFTValue)
          pParent->SetFor("FT", pFTValue->Clone());
      }

      if (pFieldDict->KeyExist("Ff")) {
        CPDF_Object* pFfValue = pFieldDict->GetDirectObjectFor("Ff");
        if (pFfValue)
          pParent->SetFor("Ff", pFfValue->Clone());
      }
    }

    pField = new CPDF_FormField(this, pParent);
    CPDF_Object* pTObj = pDict->GetObjectFor("T");
    if (ToReference(pTObj)) {
      std::unique_ptr<CPDF_Object> pClone = pTObj->CloneDirectObject();
      if (pClone)
        pDict->SetFor("T", std::move(pClone));
      else
        pDict->SetNewFor<CPDF_Name>("T", "");
    }
    m_pFieldTree->SetField(csWName, pField);
  }

  CPDF_Array* pKids = pFieldDict->GetArrayFor("Kids");
  if (pKids) {
    for (size_t i = 0; i < pKids->GetCount(); i++) {
      CPDF_Dictionary* pKid = pKids->GetDictAt(i);
      if (!pKid)
        continue;
      if (pKid->GetStringFor("Subtype") != "Widget")
        continue;

      AddControl(pField, pKid);
    }
  } else {
    if (pFieldDict->GetStringFor("Subtype") == "Widget")
      AddControl(pField, pFieldDict);
  }
  return pField;
}

CPDF_Dictionary* CPDF_Document::ProcessbCJK(
    CPDF_Dictionary* pBaseDict,
    int charset,
    FX_BOOL bVert,
    CFX_ByteString basefont,
    std::function<void(FX_WCHAR, FX_WCHAR, CPDF_Array*)> Insert) {
  CPDF_Dictionary* pFontDict = new CPDF_Dictionary(m_pByteStringPool);
  CFX_ByteString cmap;
  CFX_ByteString ordering;
  int supplement = 0;
  CPDF_Array* pWidthArray = new CPDF_Array;
  switch (charset) {
    case FXFONT_CHINESEBIG5_CHARSET:
      cmap = bVert ? "ETenms-B5-V" : "ETenms-B5-H";
      ordering = "CNS1";
      supplement = 4;
      pWidthArray->AddInteger(1);
      Insert(0x20, 0x7e, pWidthArray);
      break;
    case FXFONT_GB2312_CHARSET:
      cmap = bVert ? "GBK-EUC-V" : "GBK-EUC-H";
      ordering = "GB1";
      supplement = 2;
      pWidthArray->AddInteger(7716);
      Insert(0x20, 0x20, pWidthArray);
      pWidthArray->AddInteger(814);
      Insert(0x21, 0x7e, pWidthArray);
      break;
    case FXFONT_HANGUL_CHARSET:
      cmap = bVert ? "KSCms-UHC-V" : "KSCms-UHC-H";
      ordering = "Korea1";
      supplement = 2;
      pWidthArray->AddInteger(1);
      Insert(0x20, 0x7e, pWidthArray);
      break;
    case FXFONT_SHIFTJIS_CHARSET:
      cmap = bVert ? "90ms-RKSJ-V" : "90ms-RKSJ-H";
      ordering = "Japan1";
      supplement = 5;
      pWidthArray->AddInteger(231);
      Insert(0x20, 0x7d, pWidthArray);
      pWidthArray->AddInteger(326);
      Insert(0xa0, 0xa0, pWidthArray);
      pWidthArray->AddInteger(327);
      Insert(0xa1, 0xdf, pWidthArray);
      pWidthArray->AddInteger(631);
      Insert(0x7e, 0x7e, pWidthArray);
      break;
  }
  pBaseDict->SetNameFor("Subtype", "Type0");
  pBaseDict->SetNameFor("BaseFont", basefont);
  pBaseDict->SetNameFor("Encoding", cmap);
  pFontDict->SetFor("W", pWidthArray);
  pFontDict->SetNameFor("Type", "Font");
  pFontDict->SetNameFor("Subtype", "CIDFontType2");
  pFontDict->SetNameFor("BaseFont", basefont);
  CPDF_Dictionary* pCIDSysInfo = new CPDF_Dictionary(m_pByteStringPool);
  pCIDSysInfo->SetStringFor("Registry", "Adobe");
  pCIDSysInfo->SetStringFor("Ordering", ordering);
  pCIDSysInfo->SetIntegerFor("Supplement", supplement);
  pFontDict->SetFor("CIDSystemInfo", pCIDSysInfo);
  CPDF_Array* pArray = new CPDF_Array;
  pBaseDict->SetFor("DescendantFonts", pArray);
  pArray->AddReference(this, AddIndirectObject(pFontDict));
  return pFontDict;
}

DLLEXPORT int STDCALL FPDFPage_Flatten(FPDF_PAGE page, int nFlag) {
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (!page) {
    return FLATTEN_FAIL;
  }

  CPDF_Document* pDocument = pPage->m_pDocument;
  CPDF_Dictionary* pPageDict = pPage->m_pFormDict;

  if (!pDocument || !pPageDict) {
    return FLATTEN_FAIL;
  }

  CPDF_ObjectArray ObjectArray;
  CPDF_RectArray RectArray;

  int iRet = FLATTEN_FAIL;
  iRet = ParserAnnots(pDocument, pPageDict, &RectArray, &ObjectArray, nFlag);
  if (iRet == FLATTEN_NOTHINGTODO || iRet == FLATTEN_FAIL)
    return iRet;

  CFX_FloatRect rcOriginalCB;
  CFX_FloatRect rcMerger = CalculateRect(&RectArray);
  CFX_FloatRect rcOriginalMB = pPageDict->GetRectFor("MediaBox");

  if (pPageDict->KeyExist("CropBox"))
    rcOriginalMB = pPageDict->GetRectFor("CropBox");

  if (rcOriginalMB.IsEmpty()) {
    rcOriginalMB = CFX_FloatRect(0.0f, 0.0f, 612.0f, 792.0f);
  }

  rcMerger.left =
      rcMerger.left < rcOriginalMB.left ? rcOriginalMB.left : rcMerger.left;
  rcMerger.right =
      rcMerger.right > rcOriginalMB.right ? rcOriginalMB.right : rcMerger.right;
  rcMerger.top =
      rcMerger.top > rcOriginalMB.top ? rcOriginalMB.top : rcMerger.top;
  rcMerger.bottom = rcMerger.bottom < rcOriginalMB.bottom ? rcOriginalMB.bottom
                                                          : rcMerger.bottom;

  if (pPageDict->KeyExist("ArtBox"))
    rcOriginalCB = pPageDict->GetRectFor("ArtBox");
  else
    rcOriginalCB = rcOriginalMB;

  if (!rcOriginalMB.IsEmpty()) {
    CPDF_Array* pMediaBox = new CPDF_Array();
    pMediaBox->Add(new CPDF_Number(rcOriginalMB.left));
    pMediaBox->Add(new CPDF_Number(rcOriginalMB.bottom));
    pMediaBox->Add(new CPDF_Number(rcOriginalMB.right));
    pMediaBox->Add(new CPDF_Number(rcOriginalMB.top));
    pPageDict->SetFor("MediaBox", pMediaBox);
  }

  if (!rcOriginalCB.IsEmpty()) {
    CPDF_Array* pCropBox = new CPDF_Array();
    pCropBox->Add(new CPDF_Number(rcOriginalCB.left));
    pCropBox->Add(new CPDF_Number(rcOriginalCB.bottom));
    pCropBox->Add(new CPDF_Number(rcOriginalCB.right));
    pCropBox->Add(new CPDF_Number(rcOriginalCB.top));
    pPageDict->SetFor("ArtBox", pCropBox);
  }

  CPDF_Dictionary* pRes = pPageDict->GetDictFor("Resources");
  if (!pRes) {
    pRes = new CPDF_Dictionary(pDocument->GetByteStringPool());
    pPageDict->SetFor("Resources", pRes);
  }

  CPDF_Stream* pNewXObject = new CPDF_Stream(
      nullptr, 0, new CPDF_Dictionary(pDocument->GetByteStringPool()));

  uint32_t dwObjNum = pDocument->AddIndirectObject(pNewXObject);
  CPDF_Dictionary* pPageXObject = pRes->GetDictFor("XObject");
  if (!pPageXObject) {
    pPageXObject = new CPDF_Dictionary(pDocument->GetByteStringPool());
    pRes->SetFor("XObject", pPageXObject);
  }

  CFX_ByteString key = "";
  int nStreams = ObjectArray.GetSize();

  if (nStreams > 0) {
    for (int iKey = 0; /*iKey < 100*/; iKey++) {
      char sExtend[5] = {};
      FXSYS_itoa(iKey, sExtend, 10);
      key = CFX_ByteString("FFT") + CFX_ByteString(sExtend);
      if (!pPageXObject->KeyExist(key))
        break;
    }
  }

  SetPageContents(key, pPageDict, pDocument);

  CPDF_Dictionary* pNewXORes = nullptr;

  if (!key.IsEmpty()) {
    pPageXObject->SetReferenceFor(key, pDocument, dwObjNum);
    CPDF_Dictionary* pNewOXbjectDic = pNewXObject->GetDict();
//.........这里部分代码省略.........

FX_BOOL CPDF_PageOrganizer::ExportPage(CPDF_Document* pSrcPDFDoc,
                                       std::vector<uint16_t>* pPageNums,
                                       CPDF_Document* pDestPDFDoc,
                                       int nIndex) {
  int curpage = nIndex;
  std::unique_ptr<ObjectNumberMap> pObjNumberMap(new ObjectNumberMap);
  int nSize = pdfium::CollectionSize<int>(*pPageNums);
  for (int i = 0; i < nSize; ++i) {
    CPDF_Dictionary* pCurPageDict = pDestPDFDoc->CreateNewPage(curpage);
    CPDF_Dictionary* pSrcPageDict = pSrcPDFDoc->GetPage(pPageNums->at(i) - 1);
    if (!pSrcPageDict || !pCurPageDict)
      return FALSE;

    // Clone the page dictionary
    for (const auto& it : *pSrcPageDict) {
      const CFX_ByteString& cbSrcKeyStr = it.first;
      CPDF_Object* pObj = it.second;
      if (cbSrcKeyStr.Compare(("Type")) && cbSrcKeyStr.Compare(("Parent"))) {
        if (pCurPageDict->KeyExist(cbSrcKeyStr))
          pCurPageDict->RemoveFor(cbSrcKeyStr);
        pCurPageDict->SetFor(cbSrcKeyStr, pObj->Clone());
      }
    }

    // inheritable item
    CPDF_Object* pInheritable = nullptr;
    // 1 MediaBox  //required
    if (!pCurPageDict->KeyExist("MediaBox")) {
      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "MediaBox");
      if (!pInheritable) {
        // Search the "CropBox" from source page dictionary,
        // if not exists,we take the letter size.
        pInheritable = PageDictGetInheritableTag(pSrcPageDict, "CropBox");
        if (pInheritable) {
          pCurPageDict->SetFor("MediaBox", pInheritable->Clone());
        } else {
          // Make the default size to be letter size (8.5'x11')
          CPDF_Array* pArray = new CPDF_Array;
          pArray->AddNumber(0);
          pArray->AddNumber(0);
          pArray->AddNumber(612);
          pArray->AddNumber(792);
          pCurPageDict->SetFor("MediaBox", pArray);
        }
      } else {
        pCurPageDict->SetFor("MediaBox", pInheritable->Clone());
      }
    }
    // 2 Resources //required
    if (!pCurPageDict->KeyExist("Resources")) {
      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Resources");
      if (!pInheritable)
        return FALSE;
      pCurPageDict->SetFor("Resources", pInheritable->Clone());
    }
    // 3 CropBox  //Optional
    if (!pCurPageDict->KeyExist("CropBox")) {
      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "CropBox");
      if (pInheritable)
        pCurPageDict->SetFor("CropBox", pInheritable->Clone());
    }
    // 4 Rotate  //Optional
    if (!pCurPageDict->KeyExist("Rotate")) {
      pInheritable = PageDictGetInheritableTag(pSrcPageDict, "Rotate");
      if (pInheritable)
        pCurPageDict->SetFor("Rotate", pInheritable->Clone());
    }

    // Update the reference
    uint32_t dwOldPageObj = pSrcPageDict->GetObjNum();
    uint32_t dwNewPageObj = pCurPageDict->GetObjNum();

    (*pObjNumberMap)[dwOldPageObj] = dwNewPageObj;

    UpdateReference(pCurPageDict, pDestPDFDoc, pObjNumberMap.get());
    ++curpage;
  }

  return TRUE;
}