Move core/fpdfapi/fpdf_edit to core/fpdfapi/edit

BUG=pdfium:603

Review-Url: https://codereview.chromium.org/2386263003

5 files changed, 0 insertions, 2421 deletions

diff --git a/core/fpdfapi/fpdf_edit/cpdf_creator.h b/core/fpdfapi/fpdf_edit/cpdf_creator.h
deleted file mode 100644
index f81b043c60..0000000000
--- a/core/fpdfapi/fpdf_edit/cpdf_creator.h
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FPDFAPI_FPDF_EDIT_CPDF_CREATOR_H_
-#define CORE_FPDFAPI_FPDF_EDIT_CPDF_CREATOR_H_
-
-#include <memory>
-
-#include "core/fxcrt/fx_basic.h"
-
-class CPDF_Array;
-class CPDF_CryptoHandler;
-class CPDF_Dictionary;
-class CPDF_Document;
-class CPDF_Object;
-class CPDF_Parser;
-class CPDF_XRefStream;
-
-#define FPDFCREATE_INCREMENTAL 1
-#define FPDFCREATE_NO_ORIGINAL 2
-#define FPDFCREATE_PROGRESSIVE 4
-#define FPDFCREATE_OBJECTSTREAM 8
-
-CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& buf, const CPDF_Object* pObj);
-
-class CPDF_Creator {
- public:
-  explicit CPDF_Creator(CPDF_Document* pDoc);
-  ~CPDF_Creator();
-
-  void RemoveSecurity();
-  bool Create(IFX_StreamWrite* pFile, uint32_t flags = 0);
-  int32_t Continue(IFX_Pause* pPause = nullptr);
-  FX_BOOL SetFileVersion(int32_t fileVersion = 17);
-
- private:
-  friend class CPDF_ObjectStream;
-  friend class CPDF_XRefStream;
-
-  bool Create(uint32_t flags);
-  void ResetStandardSecurity();
-  void Clear();
-
-  void InitOldObjNumOffsets();
-  void InitNewObjNumOffsets();
-  void InitID(FX_BOOL bDefault = TRUE);
-
-  void AppendNewObjNum(uint32_t objbum);
-  int32_t AppendObjectNumberToXRef(uint32_t objnum);
-
-  int32_t WriteDoc_Stage1(IFX_Pause* pPause);
-  int32_t WriteDoc_Stage2(IFX_Pause* pPause);
-  int32_t WriteDoc_Stage3(IFX_Pause* pPause);
-  int32_t WriteDoc_Stage4(IFX_Pause* pPause);
-
-  int32_t WriteOldIndirectObject(uint32_t objnum);
-  int32_t WriteOldObjs(IFX_Pause* pPause);
-  int32_t WriteNewObjs(FX_BOOL bIncremental, IFX_Pause* pPause);
-  int32_t WriteIndirectObj(const CPDF_Object* pObj);
-  int32_t WriteDirectObj(uint32_t objnum,
-                         const CPDF_Object* pObj,
-                         FX_BOOL bEncrypt = TRUE);
-  int32_t WriteIndirectObjectToStream(const CPDF_Object* pObj);
-  int32_t WriteIndirectObj(uint32_t objnum, const CPDF_Object* pObj);
-  int32_t WriteIndirectObjectToStream(uint32_t objnum,
-                                      const uint8_t* pBuffer,
-                                      uint32_t dwSize);
-
-  int32_t WriteStream(const CPDF_Object* pStream,
-                      uint32_t objnum,
-                      CPDF_CryptoHandler* pCrypto);
-
-  CPDF_Document* const m_pDocument;
-  CPDF_Parser* const m_pParser;
-  FX_BOOL m_bSecurityChanged;
-  CPDF_Dictionary* m_pEncryptDict;
-  uint32_t m_dwEncryptObjNum;
-  FX_BOOL m_bEncryptCloned;
-  CPDF_CryptoHandler* m_pCryptoHandler;
-  // Whether this owns the crypto handler |m_pCryptoHandler|.
-  FX_BOOL m_bLocalCryptoHandler;
-  CPDF_Object* m_pMetadata;
-  std::unique_ptr<CPDF_XRefStream> m_pXRefStream;
-  int32_t m_ObjectStreamSize;
-  uint32_t m_dwLastObjNum;
-  CFX_FileBufferArchive m_File;
-  FX_FILESIZE m_Offset;
-  int32_t m_iStage;
-  uint32_t m_dwFlags;
-  FX_POSITION m_Pos;
-  FX_FILESIZE m_XrefStart;
-  CFX_FileSizeListArray m_ObjectOffset;
-  CFX_ArrayTemplate<uint32_t> m_NewObjNumArray;
-  std::unique_ptr<CPDF_Array, ReleaseDeleter<CPDF_Array>> m_pIDArray;
-  int32_t m_FileVersion;
-};
-
-#endif  // CORE_FPDFAPI_FPDF_EDIT_CPDF_CREATOR_H_
diff --git a/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp b/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp
deleted file mode 100644
index 4a6944ba86..0000000000
--- a/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp
+++ /dev/null
@@ -1,178 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.h"
-
-#include "core/fpdfapi/fpdf_edit/cpdf_creator.h"
-#include "core/fpdfapi/fpdf_page/cpdf_image.h"
-#include "core/fpdfapi/fpdf_page/cpdf_imageobject.h"
-#include "core/fpdfapi/fpdf_page/cpdf_page.h"
-#include "core/fpdfapi/fpdf_page/cpdf_pageobject.h"
-#include "core/fpdfapi/fpdf_page/pageint.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_array.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_document.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_stream.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_stream_acc.h"
-#include "core/fpdfapi/fpdf_parser/fpdf_parser_decode.h"
-
-CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& ar, CFX_Matrix& matrix) {
-  ar << matrix.a << " " << matrix.b << " " << matrix.c << " " << matrix.d << " "
-     << matrix.e << " " << matrix.f;
-  return ar;
-}
-
-CPDF_PageContentGenerator::CPDF_PageContentGenerator(CPDF_Page* pPage)
-    : m_pPage(pPage), m_pDocument(m_pPage->m_pDocument) {
-  for (const auto& pObj : *pPage->GetPageObjectList())
-    InsertPageObject(pObj.get());
-}
-
-CPDF_PageContentGenerator::~CPDF_PageContentGenerator() {}
-
-FX_BOOL CPDF_PageContentGenerator::InsertPageObject(
-    CPDF_PageObject* pPageObject) {
-  return pPageObject && m_pageObjects.Add(pPageObject);
-}
-
-void CPDF_PageContentGenerator::GenerateContent() {
-  CFX_ByteTextBuf buf;
-  CPDF_Dictionary* pPageDict = m_pPage->m_pFormDict;
-  for (int i = 0; i < m_pageObjects.GetSize(); ++i) {
-    CPDF_PageObject* pPageObj = m_pageObjects[i];
-    if (!pPageObj || !pPageObj->IsImage()) {
-      continue;
-    }
-    ProcessImage(buf, pPageObj->AsImage());
-  }
-  CPDF_Object* pContent =
-      pPageDict ? pPageDict->GetDirectObjectFor("Contents") : nullptr;
-  if (pContent)
-    pPageDict->RemoveFor("Contents");
-
-  CPDF_Stream* pStream = new CPDF_Stream;
-  pStream->SetData(buf.GetBuffer(), buf.GetLength());
-  pPageDict->SetReferenceFor("Contents", m_pDocument,
-                             m_pDocument->AddIndirectObject(pStream));
-}
-
-CFX_ByteString CPDF_PageContentGenerator::RealizeResource(
-    CPDF_Object* pResourceObj,
-    const CFX_ByteString& bsType) {
-  if (!m_pPage->m_pResources) {
-    m_pPage->m_pResources =
-        new CPDF_Dictionary(m_pDocument->GetByteStringPool());
-    m_pPage->m_pFormDict->SetReferenceFor(
-        "Resources", m_pDocument,
-        m_pDocument->AddIndirectObject(m_pPage->m_pResources));
-  }
-  CPDF_Dictionary* pResList = m_pPage->m_pResources->GetDictFor(bsType);
-  if (!pResList) {
-    pResList = new CPDF_Dictionary(m_pDocument->GetByteStringPool());
-    m_pPage->m_pResources->SetFor(bsType, pResList);
-  }
-  CFX_ByteString name;
-  int idnum = 1;
-  while (1) {
-    name.Format("FX%c%d", bsType[0], idnum);
-    if (!pResList->KeyExist(name)) {
-      break;
-    }
-    idnum++;
-  }
-  pResList->SetReferenceFor(name, m_pDocument,
-                            m_pDocument->AddIndirectObject(pResourceObj));
-  return name;
-}
-
-void CPDF_PageContentGenerator::ProcessImage(CFX_ByteTextBuf& buf,
-                                             CPDF_ImageObject* pImageObj) {
-  if ((pImageObj->m_Matrix.a == 0 && pImageObj->m_Matrix.b == 0) ||
-      (pImageObj->m_Matrix.c == 0 && pImageObj->m_Matrix.d == 0)) {
-    return;
-  }
-  buf << "q " << pImageObj->m_Matrix << " cm ";
-  CPDF_Image* pImage = pImageObj->GetImage();
-  if (!pImage->IsInline()) {
-    CPDF_Stream* pStream = pImage->GetStream();
-    uint32_t dwSavedObjNum = pStream->GetObjNum();
-    CFX_ByteString name = RealizeResource(pStream, "XObject");
-    if (dwSavedObjNum == 0) {
-      pImageObj->SetUnownedImage(m_pDocument->GetPageData()->GetImage(pStream));
-    }
-    buf << "/" << PDF_NameEncode(name) << " Do Q\n";
-  }
-}
-
-void CPDF_PageContentGenerator::ProcessForm(CFX_ByteTextBuf& buf,
-                                            const uint8_t* data,
-                                            uint32_t size,
-                                            CFX_Matrix& matrix) {
-  if (!data || !size)
-    return;
-
-  CPDF_Dictionary* pFormDict =
-      new CPDF_Dictionary(m_pDocument->GetByteStringPool());
-  pFormDict->SetNameFor("Type", "XObject");
-  pFormDict->SetNameFor("Subtype", "Form");
-
-  CFX_FloatRect bbox = m_pPage->GetPageBBox();
-  matrix.TransformRect(bbox);
-  pFormDict->SetRectFor("BBox", bbox);
-
-  CPDF_Stream* pStream = new CPDF_Stream;
-  pStream->InitStream(data, size, pFormDict);
-  buf << "q " << matrix << " cm ";
-
-  CFX_ByteString name = RealizeResource(pStream, "XObject");
-  buf << "/" << PDF_NameEncode(name) << " Do Q\n";
-}
-
-void CPDF_PageContentGenerator::TransformContent(CFX_Matrix& matrix) {
-  CPDF_Dictionary* pDict = m_pPage->m_pFormDict;
-  CPDF_Object* pContent =
-      pDict ? pDict->GetDirectObjectFor("Contents") : nullptr;
-  if (!pContent)
-    return;
-
-  CFX_ByteTextBuf buf;
-  if (CPDF_Array* pArray = pContent->AsArray()) {
-    size_t iCount = pArray->GetCount();
-    CPDF_StreamAcc** pContentArray = FX_Alloc(CPDF_StreamAcc*, iCount);
-    size_t size = 0;
-    for (size_t i = 0; i < iCount; ++i) {
-      pContent = pArray->GetObjectAt(i);
-      CPDF_Stream* pStream = ToStream(pContent);
-      if (!pStream)
-        continue;
-
-      CPDF_StreamAcc* pStreamAcc = new CPDF_StreamAcc();
-      pStreamAcc->LoadAllData(pStream);
-      pContentArray[i] = pStreamAcc;
-      size += pContentArray[i]->GetSize() + 1;
-    }
-    int pos = 0;
-    uint8_t* pBuf = FX_Alloc(uint8_t, size);
-    for (size_t i = 0; i < iCount; ++i) {
-      FXSYS_memcpy(pBuf + pos, pContentArray[i]->GetData(),
-                   pContentArray[i]->GetSize());
-      pos += pContentArray[i]->GetSize() + 1;
-      pBuf[pos - 1] = ' ';
-      delete pContentArray[i];
-    }
-    ProcessForm(buf, pBuf, size, matrix);
-    FX_Free(pBuf);
-    FX_Free(pContentArray);
-  } else if (CPDF_Stream* pStream = pContent->AsStream()) {
-    CPDF_StreamAcc contentStream;
-    contentStream.LoadAllData(pStream);
-    ProcessForm(buf, contentStream.GetData(), contentStream.GetSize(), matrix);
-  }
-  CPDF_Stream* pStream = new CPDF_Stream;
-  pStream->SetData(buf.GetBuffer(), buf.GetLength());
-  m_pPage->m_pFormDict->SetReferenceFor(
-      "Contents", m_pDocument, m_pDocument->AddIndirectObject(pStream));
-}
diff --git a/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.h b/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.h
deleted file mode 100644
index 8dfc6101e1..0000000000
--- a/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.h
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2016 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FPDFAPI_FPDF_EDIT_CPDF_PAGECONTENTGENERATOR_H_
-#define CORE_FPDFAPI_FPDF_EDIT_CPDF_PAGECONTENTGENERATOR_H_
-
-#include "core/fpdfapi/fpdf_parser/cpdf_document.h"
-#include "core/fxcrt/fx_basic.h"
-#include "core/fxcrt/fx_coordinates.h"
-#include "core/fxcrt/fx_system.h"
-
-class CPDF_Object;
-class CPDF_Page;
-class CPDF_PageObject;
-class CPDF_ImageObject;
-
-class CPDF_PageContentGenerator {
- public:
-  explicit CPDF_PageContentGenerator(CPDF_Page* pPage);
-  ~CPDF_PageContentGenerator();
-
-  FX_BOOL InsertPageObject(CPDF_PageObject* pPageObject);
-  void GenerateContent();
-  void TransformContent(CFX_Matrix& matrix);
-
- private:
-  void ProcessImage(CFX_ByteTextBuf& buf, CPDF_ImageObject* pImageObj);
-  void ProcessForm(CFX_ByteTextBuf& buf,
-                   const uint8_t* data,
-                   uint32_t size,
-                   CFX_Matrix& matrix);
-  CFX_ByteString RealizeResource(CPDF_Object* pResourceObj,
-                                 const CFX_ByteString& bsType);
-
-  CPDF_Page* m_pPage;
-  CPDF_Document* m_pDocument;
-  CFX_ArrayTemplate<CPDF_PageObject*> m_pageObjects;
-};
-
-#endif  // CORE_FPDFAPI_FPDF_EDIT_CPDF_PAGECONTENTGENERATOR_H_
diff --git a/core/fpdfapi/fpdf_edit/editint.h b/core/fpdfapi/fpdf_edit/editint.h
deleted file mode 100644
index ac10958f22..0000000000
--- a/core/fpdfapi/fpdf_edit/editint.h
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FPDFAPI_FPDF_EDIT_EDITINT_H_
-#define CORE_FPDFAPI_FPDF_EDIT_EDITINT_H_
-
-#include <vector>
-
-#include "core/fxcrt/fx_basic.h"
-#include "core/fxcrt/fx_stream.h"
-#include "core/fxcrt/fx_system.h"
-
-class CPDF_Creator;
-class CPDF_Object;
-
-class CPDF_ObjectStream {
- public:
-  struct Item {
-    uint32_t objnum;
-    FX_STRSIZE offset;
-  };
-
-  CPDF_ObjectStream();
-  ~CPDF_ObjectStream();
-
-  void Start();
-  FX_FILESIZE End(CPDF_Creator* pCreator);
-  void CompressIndirectObject(uint32_t dwObjNum, const CPDF_Object* pObj);
-  void CompressIndirectObject(uint32_t dwObjNum,
-                              const uint8_t* pBuffer,
-                              uint32_t dwSize);
-
-  std::vector<Item> m_Items;
-  CFX_ByteTextBuf m_Buffer;
-  uint32_t m_dwObjNum;
-  int32_t m_index;
-};
-
-class CPDF_XRefStream {
- public:
-  struct Index {
-    uint32_t objnum;
-    uint32_t count;
-  };
-
-  CPDF_XRefStream();
-  ~CPDF_XRefStream();
-
-  FX_BOOL Start();
-  int32_t CompressIndirectObject(uint32_t dwObjNum,
-                                 const CPDF_Object* pObj,
-                                 CPDF_Creator* pCreator);
-  int32_t CompressIndirectObject(uint32_t dwObjNum,
-                                 const uint8_t* pBuffer,
-                                 uint32_t dwSize,
-                                 CPDF_Creator* pCreator);
-  FX_BOOL End(CPDF_Creator* pCreator, FX_BOOL bEOF = FALSE);
-  void AddObjectNumberToIndexArray(uint32_t objnum);
-  FX_BOOL EndXRefStream(CPDF_Creator* pCreator);
-
-  std::vector<Index> m_IndexArray;
-  FX_FILESIZE m_PrevOffset;
-  uint32_t m_dwTempObjNum;
-
- protected:
-  int32_t EndObjectStream(CPDF_Creator* pCreator, FX_BOOL bEOF = TRUE);
-  FX_BOOL GenerateXRefStream(CPDF_Creator* pCreator, FX_BOOL bEOF);
-
-  size_t m_iSeg;
-  CPDF_ObjectStream m_ObjStream;
-  CFX_ByteTextBuf m_Buffer;
-};
-
-#endif  // CORE_FPDFAPI_FPDF_EDIT_EDITINT_H_
diff --git a/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp b/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
deleted file mode 100644
index 1eb4286aa1..0000000000
--- a/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
+++ /dev/null
@@ -1,2022 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/fpdfapi/fpdf_edit/editint.h"
-
-#include <vector>
-
-#include "core/fpdfapi/fpdf_edit/cpdf_creator.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_array.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_crypto_handler.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_document.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_parser.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_reference.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_security_handler.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_stream.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_stream_acc.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_string.h"
-#include "core/fpdfapi/fpdf_parser/fpdf_parser_decode.h"
-#include "core/fxcrt/fx_ext.h"
-#include "third_party/base/stl_util.h"
-
-#define PDF_OBJECTSTREAM_MAXLENGTH (256 * 1024)
-#define PDF_XREFSTREAM_MAXSIZE 10000
-
-// TODO(ochang): Make helper for appending "objnum 0 R ".
-
-namespace {
-
-int32_t PDF_CreatorAppendObject(const CPDF_Object* pObj,
-                                CFX_FileBufferArchive* pFile,
-                                FX_FILESIZE& offset) {
-  int32_t len = 0;
-  if (!pObj) {
-    if (pFile->AppendString(" null") < 0) {
-      return -1;
-    }
-    offset += 5;
-    return 1;
-  }
-  switch (pObj->GetType()) {
-    case CPDF_Object::NULLOBJ:
-      if (pFile->AppendString(" null") < 0) {
-        return -1;
-      }
-      offset += 5;
-      break;
-    case CPDF_Object::BOOLEAN:
-    case CPDF_Object::NUMBER:
-      if (pFile->AppendString(" ") < 0) {
-        return -1;
-      }
-      if ((len = pFile->AppendString(pObj->GetString().AsStringC())) < 0) {
-        return -1;
-      }
-      offset += len + 1;
-      break;
-    case CPDF_Object::STRING: {
-      CFX_ByteString str = pObj->GetString();
-      FX_BOOL bHex = pObj->AsString()->IsHex();
-      if ((len = pFile->AppendString(PDF_EncodeString(str, bHex).AsStringC())) <
-          0) {
-        return -1;
-      }
-      offset += len;
-      break;
-    }
-    case CPDF_Object::NAME: {
-      if (pFile->AppendString("/") < 0) {
-        return -1;
-      }
-      CFX_ByteString str = pObj->GetString();
-      if ((len = pFile->AppendString(PDF_NameEncode(str).AsStringC())) < 0) {
-        return -1;
-      }
-      offset += len + 1;
-      break;
-    }
-    case CPDF_Object::REFERENCE: {
-      if (pFile->AppendString(" ") < 0)
-        return -1;
-      if ((len = pFile->AppendDWord(pObj->AsReference()->GetRefObjNum())) < 0)
-        return -1;
-      if (pFile->AppendString(" 0 R ") < 0)
-        return -1;
-      offset += len + 6;
-      break;
-    }
-    case CPDF_Object::ARRAY: {
-      if (pFile->AppendString("[") < 0) {
-        return -1;
-      }
-      offset += 1;
-      const CPDF_Array* p = pObj->AsArray();
-      for (size_t i = 0; i < p->GetCount(); i++) {
-        CPDF_Object* pElement = p->GetObjectAt(i);
-        if (pElement->GetObjNum()) {
-          if (pFile->AppendString(" ") < 0) {
-            return -1;
-          }
-          if ((len = pFile->AppendDWord(pElement->GetObjNum())) < 0) {
-            return -1;
-          }
-          if (pFile->AppendString(" 0 R") < 0) {
-            return -1;
-          }
-          offset += len + 5;
-        } else {
-          if (PDF_CreatorAppendObject(pElement, pFile, offset) < 0) {
-            return -1;
-          }
-        }
-      }
-      if (pFile->AppendString("]") < 0) {
-        return -1;
-      }
-      offset += 1;
-      break;
-    }
-    case CPDF_Object::DICTIONARY: {
-      if (pFile->AppendString("<<") < 0) {
-        return -1;
-      }
-      offset += 2;
-      const CPDF_Dictionary* p = pObj->AsDictionary();
-      for (const auto& it : *p) {
-        const CFX_ByteString& key = it.first;
-        CPDF_Object* pValue = it.second;
-        if (pFile->AppendString("/") < 0) {
-          return -1;
-        }
-        if ((len = pFile->AppendString(PDF_NameEncode(key).AsStringC())) < 0) {
-          return -1;
-        }
-        offset += len + 1;
-        if (pValue->GetObjNum()) {
-          if (pFile->AppendString(" ") < 0) {
-            return -1;
-          }
-          if ((len = pFile->AppendDWord(pValue->GetObjNum())) < 0) {
-            return -1;
-          }
-          if (pFile->AppendString(" 0 R") < 0) {
-            return -1;
-          }
-          offset += len + 5;
-        } else {
-          if (PDF_CreatorAppendObject(pValue, pFile, offset) < 0) {
-            return -1;
-          }
-        }
-      }
-      if (pFile->AppendString(">>") < 0) {
-        return -1;
-      }
-      offset += 2;
-      break;
-    }
-    case CPDF_Object::STREAM: {
-      const CPDF_Stream* p = pObj->AsStream();
-      if (PDF_CreatorAppendObject(p->GetDict(), pFile, offset) < 0) {
-        return -1;
-      }
-      if (pFile->AppendString("stream\r\n") < 0) {
-        return -1;
-      }
-      offset += 8;
-      CPDF_StreamAcc acc;
-      acc.LoadAllData(p, TRUE);
-      if (pFile->AppendBlock(acc.GetData(), acc.GetSize()) < 0) {
-        return -1;
-      }
-      offset += acc.GetSize();
-      if ((len = pFile->AppendString("\r\nendstream")) < 0) {
-        return -1;
-      }
-      offset += len;
-      break;
-    }
-    default:
-      ASSERT(FALSE);
-      break;
-  }
-  return 1;
-}
-
-int32_t PDF_CreatorWriteTrailer(CPDF_Document* pDocument,
-                                CFX_FileBufferArchive* pFile,
-                                CPDF_Array* pIDArray) {
-  FX_FILESIZE offset = 0;
-  int32_t len = 0;
-  CPDF_Parser* pParser = pDocument->GetParser();
-  if (pParser) {
-    CPDF_Dictionary* p = pParser->GetTrailer();
-    for (const auto& it : *p) {
-      const CFX_ByteString& key = it.first;
-      CPDF_Object* pValue = it.second;
-      if (key == "Encrypt" || key == "Size" || key == "Filter" ||
-          key == "Index" || key == "Length" || key == "Prev" || key == "W" ||
-          key == "XRefStm" || key == "Type" || key == "ID") {
-        continue;
-      }
-      if (key == "DecodeParms")
-        continue;
-
-      if (pFile->AppendString(("/")) < 0) {
-        return -1;
-      }
-      if ((len = pFile->AppendString(PDF_NameEncode(key).AsStringC())) < 0) {
-        return -1;
-      }
-      offset += len + 1;
-      if (pValue->GetObjNum()) {
-        if (pFile->AppendString(" ") < 0) {
-          return -1;
-        }
-        if ((len = pFile->AppendDWord(pValue->GetObjNum())) < 0) {
-          return -1;
-        }
-        if (pFile->AppendString(" 0 R ") < 0) {
-          return -1;
-        }
-        offset += len + 6;
-      } else {
-        if (PDF_CreatorAppendObject(pValue, pFile, offset) < 0) {
-          return -1;
-        }
-      }
-    }
-    if (pIDArray) {
-      if (pFile->AppendString(("/ID")) < 0) {
-        return -1;
-      }
-      offset += 3;
-      if (PDF_CreatorAppendObject(pIDArray, pFile, offset) < 0) {
-        return -1;
-      }
-    }
-    return offset;
-  }
-  if (pFile->AppendString("\r\n/Root ") < 0) {
-    return -1;
-  }
-  if ((len = pFile->AppendDWord(pDocument->GetRoot()->GetObjNum())) < 0) {
-    return -1;
-  }
-  if (pFile->AppendString(" 0 R\r\n") < 0) {
-    return -1;
-  }
-  offset += len + 14;
-  if (pDocument->GetInfo()) {
-    if (pFile->AppendString("/Info ") < 0) {
-      return -1;
-    }
-    if ((len = pFile->AppendDWord(pDocument->GetInfo()->GetObjNum())) < 0) {
-      return -1;
-    }
-    if (pFile->AppendString(" 0 R\r\n") < 0) {
-      return -1;
-    }
-    offset += len + 12;
-  }
-  if (pIDArray) {
-    if (pFile->AppendString(("/ID")) < 0) {
-      return -1;
-    }
-    offset += 3;
-    if (PDF_CreatorAppendObject(pIDArray, pFile, offset) < 0) {
-      return -1;
-    }
-  }
-  return offset;
-}
-
-int32_t PDF_CreatorWriteEncrypt(const CPDF_Dictionary* pEncryptDict,
-                                uint32_t dwObjNum,
-                                CFX_FileBufferArchive* pFile) {
-  if (!pEncryptDict) {
-    return 0;
-  }
-  ASSERT(pFile);
-  FX_FILESIZE offset = 0;
-  int32_t len = 0;
-  if (pFile->AppendString("/Encrypt") < 0) {
-    return -1;
-  }
-  offset += 8;
-  if (pFile->AppendString(" ") < 0) {
-    return -1;
-  }
-  if ((len = pFile->AppendDWord(dwObjNum)) < 0) {
-    return -1;
-  }
-  if (pFile->AppendString(" 0 R ") < 0) {
-    return -1;
-  }
-  offset += len + 6;
-  return offset;
-}
-
-std::vector<uint8_t> PDF_GenerateFileID(uint32_t dwSeed1, uint32_t dwSeed2) {
-  std::vector<uint8_t> buffer(sizeof(uint32_t) * 4);
-  uint32_t* pBuffer = reinterpret_cast<uint32_t*>(buffer.data());
-  void* pContext = FX_Random_MT_Start(dwSeed1);
-  for (int i = 0; i < 2; ++i)
-    *pBuffer++ = FX_Random_MT_Generate(pContext);
-  FX_Random_MT_Close(pContext);
-  pContext = FX_Random_MT_Start(dwSeed2);
-  for (int i = 0; i < 2; ++i)
-    *pBuffer++ = FX_Random_MT_Generate(pContext);
-  FX_Random_MT_Close(pContext);
-  return buffer;
-}
-
-void AppendIndex0(CFX_ByteTextBuf& buffer, bool bFirstObject) {
-  buffer.AppendByte(0);
-  buffer.AppendByte(0);
-  buffer.AppendByte(0);
-  buffer.AppendByte(0);
-  buffer.AppendByte(0);
-  const uint8_t byte = bFirstObject ? 0xFF : 0;
-  buffer.AppendByte(byte);
-  buffer.AppendByte(byte);
-}
-
-void AppendIndex1(CFX_ByteTextBuf& buffer, FX_FILESIZE offset) {
-  buffer.AppendByte(1);
-  buffer.AppendByte(FX_GETBYTEOFFSET24(offset));
-  buffer.AppendByte(FX_GETBYTEOFFSET16(offset));
-  buffer.AppendByte(FX_GETBYTEOFFSET8(offset));
-  buffer.AppendByte(FX_GETBYTEOFFSET0(offset));
-  buffer.AppendByte(0);
-  buffer.AppendByte(0);
-}
-
-void AppendIndex2(CFX_ByteTextBuf& buffer, uint32_t objnum, int32_t index) {
-  buffer.AppendByte(2);
-  buffer.AppendByte(FX_GETBYTEOFFSET24(objnum));
-  buffer.AppendByte(FX_GETBYTEOFFSET16(objnum));
-  buffer.AppendByte(FX_GETBYTEOFFSET8(objnum));
-  buffer.AppendByte(FX_GETBYTEOFFSET0(objnum));
-  buffer.AppendByte(FX_GETBYTEOFFSET8(index));
-  buffer.AppendByte(FX_GETBYTEOFFSET0(index));
-}
-
-bool IsXRefNeedEnd(CPDF_XRefStream* pXRef, uint32_t flag) {
-  if (!(flag & FPDFCREATE_INCREMENTAL))
-    return false;
-
-  uint32_t iCount = 0;
-  for (const auto& pair : pXRef->m_IndexArray)
-    iCount += pair.count;
-
-  return iCount >= PDF_XREFSTREAM_MAXSIZE;
-}
-
-int32_t OutputIndex(CFX_FileBufferArchive* pFile, FX_FILESIZE offset) {
-  if (sizeof(offset) > 4) {
-    if (FX_GETBYTEOFFSET32(offset)) {
-      if (pFile->AppendByte(FX_GETBYTEOFFSET56(offset)) < 0)
-        return -1;
-      if (pFile->AppendByte(FX_GETBYTEOFFSET48(offset)) < 0)
-        return -1;
-      if (pFile->AppendByte(FX_GETBYTEOFFSET40(offset)) < 0)
-        return -1;
-      if (pFile->AppendByte(FX_GETBYTEOFFSET32(offset)) < 0)
-        return -1;
-    }
-  }
-  if (pFile->AppendByte(FX_GETBYTEOFFSET24(offset)) < 0)
-    return -1;
-  if (pFile->AppendByte(FX_GETBYTEOFFSET16(offset)) < 0)
-    return -1;
-  if (pFile->AppendByte(FX_GETBYTEOFFSET8(offset)) < 0)
-    return -1;
-  if (pFile->AppendByte(FX_GETBYTEOFFSET0(offset)) < 0)
-    return -1;
-  if (pFile->AppendByte(0) < 0)
-    return -1;
-  return 0;
-}
-
-class CPDF_FlateEncoder {
- public:
-  CPDF_FlateEncoder(CPDF_Stream* pStream, FX_BOOL bFlateEncode);
-  CPDF_FlateEncoder(const uint8_t* pBuffer,
-                    uint32_t size,
-                    bool bFlateEncode,
-                    bool bXRefStream);
-  ~CPDF_FlateEncoder();
-
-  void CloneDict();
-
-  uint8_t* m_pData;
-  uint32_t m_dwSize;
-  CPDF_Dictionary* m_pDict;
-  FX_BOOL m_bCloned;
-  FX_BOOL m_bNewData;
-  CPDF_StreamAcc m_Acc;
-};
-
-void CPDF_FlateEncoder::CloneDict() {
-  if (!m_bCloned) {
-    m_pDict = ToDictionary(m_pDict->Clone());
-    ASSERT(m_pDict);
-    m_bCloned = TRUE;
-  }
-}
-
-CPDF_FlateEncoder::CPDF_FlateEncoder(CPDF_Stream* pStream, FX_BOOL bFlateEncode)
-    : m_pData(nullptr),
-      m_dwSize(0),
-      m_pDict(nullptr),
-      m_bCloned(FALSE),
-      m_bNewData(FALSE) {
-  m_Acc.LoadAllData(pStream, TRUE);
-  if ((pStream && pStream->GetDict() &&
-       pStream->GetDict()->KeyExist("Filter")) ||
-      !bFlateEncode) {
-    if (pStream->GetDict()->KeyExist("Filter") && !bFlateEncode) {
-      CPDF_StreamAcc destAcc;
-      destAcc.LoadAllData(pStream);
-      m_dwSize = destAcc.GetSize();
-      m_pData = (uint8_t*)destAcc.DetachData();
-      m_pDict = ToDictionary(pStream->GetDict()->Clone());
-      m_pDict->RemoveFor("Filter");
-      m_bNewData = TRUE;
-      m_bCloned = TRUE;
-    } else {
-      m_pData = (uint8_t*)m_Acc.GetData();
-      m_dwSize = m_Acc.GetSize();
-      m_pDict = pStream->GetDict();
-    }
-    return;
-  }
-
-  m_bNewData = TRUE;
-  m_bCloned = TRUE;
-  // TODO(thestig): Move to Init() and check return value.
-  ::FlateEncode(m_Acc.GetData(), m_Acc.GetSize(), &m_pData, &m_dwSize);
-  m_pDict = ToDictionary(pStream->GetDict()->Clone());
-  m_pDict->SetIntegerFor("Length", m_dwSize);
-  m_pDict->SetNameFor("Filter", "FlateDecode");
-  m_pDict->RemoveFor("DecodeParms");
-}
-
-CPDF_FlateEncoder::CPDF_FlateEncoder(const uint8_t* pBuffer,
-                                     uint32_t size,
-                                     bool bFlateEncode,
-                                     bool bXRefStream)
-    : m_pData(nullptr),
-      m_dwSize(0),
-      m_pDict(nullptr),
-      m_bCloned(FALSE),
-      m_bNewData(FALSE) {
-  if (!bFlateEncode) {
-    m_pData = (uint8_t*)pBuffer;
-    m_dwSize = size;
-    return;
-  }
-  m_bNewData = TRUE;
-  // TODO(thestig): Move to Init() and check return value.
-  if (bXRefStream)
-    ::PngEncode(pBuffer, size, &m_pData, &m_dwSize);
-  else
-    ::FlateEncode(pBuffer, size, &m_pData, &m_dwSize);
-}
-
-CPDF_FlateEncoder::~CPDF_FlateEncoder() {
-  if (m_bCloned && m_pDict)
-    m_pDict->Release();
-  if (m_bNewData)
-    FX_Free(m_pData);
-}
-
-class CPDF_Encryptor {
- public:
-  CPDF_Encryptor(CPDF_CryptoHandler* pHandler,
-                 int objnum,
-                 uint8_t* src_data,
-                 uint32_t src_size);
-  ~CPDF_Encryptor();
-
-  uint8_t* m_pData;
-  uint32_t m_dwSize;
-  FX_BOOL m_bNewBuf;
-};
-
-CPDF_Encryptor::CPDF_Encryptor(CPDF_CryptoHandler* pHandler,
-                               int objnum,
-                               uint8_t* src_data,
-                               uint32_t src_size)
-    : m_pData(nullptr), m_dwSize(0), m_bNewBuf(FALSE) {
-  if (src_size == 0)
-    return;
-
-  if (!pHandler) {
-    m_pData = (uint8_t*)src_data;
-    m_dwSize = src_size;
-    return;
-  }
-  m_dwSize = pHandler->EncryptGetSize(objnum, 0, src_data, src_size);
-  m_pData = FX_Alloc(uint8_t, m_dwSize);
-  pHandler->EncryptContent(objnum, 0, src_data, src_size, m_pData, m_dwSize);
-  m_bNewBuf = TRUE;
-}
-
-CPDF_Encryptor::~CPDF_Encryptor() {
-  if (m_bNewBuf)
-    FX_Free(m_pData);
-}
-
-}  // namespace
-
-CPDF_ObjectStream::CPDF_ObjectStream() : m_dwObjNum(0), m_index(0) {}
-
-CPDF_ObjectStream::~CPDF_ObjectStream() {}
-
-void CPDF_ObjectStream::Start() {
-  m_Items.clear();
-  m_Buffer.Clear();
-  m_dwObjNum = 0;
-  m_index = 0;
-}
-
-void CPDF_ObjectStream::CompressIndirectObject(uint32_t dwObjNum,
-                                               const CPDF_Object* pObj) {
-  m_Items.push_back({dwObjNum, m_Buffer.GetLength()});
-  m_Buffer << pObj;
-}
-
-void CPDF_ObjectStream::CompressIndirectObject(uint32_t dwObjNum,
-                                               const uint8_t* pBuffer,
-                                               uint32_t dwSize) {
-  m_Items.push_back({dwObjNum, m_Buffer.GetLength()});
-  m_Buffer.AppendBlock(pBuffer, dwSize);
-}
-
-FX_FILESIZE CPDF_ObjectStream::End(CPDF_Creator* pCreator) {
-  ASSERT(pCreator);
-  if (m_Items.empty())
-    return 0;
-
-  CFX_FileBufferArchive* pFile = &pCreator->m_File;
-  FX_FILESIZE ObjOffset = pCreator->m_Offset;
-  if (!m_dwObjNum) {
-    m_dwObjNum = ++pCreator->m_dwLastObjNum;
-  }
-  CFX_ByteTextBuf tempBuffer;
-  for (const auto& pair : m_Items)
-    tempBuffer << pair.objnum << " " << pair.offset << " ";
-
-  FX_FILESIZE& offset = pCreator->m_Offset;
-  int32_t len = pFile->AppendDWord(m_dwObjNum);
-  if (len < 0) {
-    return -1;
-  }
-  offset += len;
-  if ((len = pFile->AppendString(" 0 obj\r\n<</Type /ObjStm /N ")) < 0) {
-    return -1;
-  }
-  offset += len;
-  uint32_t iCount = pdfium::CollectionSize<uint32_t>(m_Items);
-  if ((len = pFile->AppendDWord(iCount)) < 0) {
-    return -1;
-  }
-  offset += len;
-  if (pFile->AppendString("/First ") < 0) {
-    return -1;
-  }
-  if ((len = pFile->AppendDWord((uint32_t)tempBuffer.GetLength())) < 0) {
-    return -1;
-  }
-  if (pFile->AppendString("/Length ") < 0) {
-    return -1;
-  }
-  offset += len + 15;
-
-  tempBuffer << m_Buffer;
-  CPDF_FlateEncoder encoder(tempBuffer.GetBuffer(), tempBuffer.GetLength(),
-                            true, false);
-  CPDF_Encryptor encryptor(pCreator->m_pCryptoHandler, m_dwObjNum,
-                           encoder.m_pData, encoder.m_dwSize);
-  if ((len = pFile->AppendDWord(encryptor.m_dwSize)) < 0) {
-    return -1;
-  }
-  offset += len;
-  if (pFile->AppendString("/Filter /FlateDecode") < 0) {
-    return -1;
-  }
-  offset += 20;
-  if ((len = pFile->AppendString(">>stream\r\n")) < 0) {
-    return -1;
-  }
-  if (pFile->AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
-    return -1;
-  }
-  offset += len + encryptor.m_dwSize;
-  if ((len = pFile->AppendString("\r\nendstream\r\nendobj\r\n")) < 0) {
-    return -1;
-  }
-  offset += len;
-  return ObjOffset;
-}
-
-CPDF_XRefStream::CPDF_XRefStream()
-    : m_PrevOffset(0), m_dwTempObjNum(0), m_iSeg(0) {}
-
-CPDF_XRefStream::~CPDF_XRefStream() {}
-
-FX_BOOL CPDF_XRefStream::Start() {
-  m_IndexArray.clear();
-  m_Buffer.Clear();
-  m_iSeg = 0;
-  return TRUE;
-}
-int32_t CPDF_XRefStream::CompressIndirectObject(uint32_t dwObjNum,
-                                                const CPDF_Object* pObj,
-                                                CPDF_Creator* pCreator) {
-  if (!pCreator)
-    return 0;
-
-  m_ObjStream.CompressIndirectObject(dwObjNum, pObj);
-  if (pdfium::CollectionSize<int32_t>(m_ObjStream.m_Items) <
-          pCreator->m_ObjectStreamSize &&
-      m_ObjStream.m_Buffer.GetLength() < PDF_OBJECTSTREAM_MAXLENGTH) {
-    return 1;
-  }
-  return EndObjectStream(pCreator);
-}
-int32_t CPDF_XRefStream::CompressIndirectObject(uint32_t dwObjNum,
-                                                const uint8_t* pBuffer,
-                                                uint32_t dwSize,
-                                                CPDF_Creator* pCreator) {
-  if (!pCreator)
-    return 0;
-
-  m_ObjStream.CompressIndirectObject(dwObjNum, pBuffer, dwSize);
-  if (pdfium::CollectionSize<int32_t>(m_ObjStream.m_Items) <
-          pCreator->m_ObjectStreamSize &&
-      m_ObjStream.m_Buffer.GetLength() < PDF_OBJECTSTREAM_MAXLENGTH) {
-    return 1;
-  }
-  return EndObjectStream(pCreator);
-}
-
-int32_t CPDF_XRefStream::EndObjectStream(CPDF_Creator* pCreator, FX_BOOL bEOF) {
-  FX_FILESIZE objOffset = 0;
-  if (bEOF) {
-    objOffset = m_ObjStream.End(pCreator);
-    if (objOffset < 0) {
-      return -1;
-    }
-  }
-  uint32_t& dwObjStmNum = m_ObjStream.m_dwObjNum;
-  if (!dwObjStmNum) {
-    dwObjStmNum = ++pCreator->m_dwLastObjNum;
-  }
-  int32_t iSize = pdfium::CollectionSize<int32_t>(m_ObjStream.m_Items);
-  size_t iSeg = m_IndexArray.size();
-  if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) {
-    if (m_dwTempObjNum == 0) {
-      AppendIndex0(m_Buffer, true);
-      m_dwTempObjNum++;
-    }
-    uint32_t end_num = m_IndexArray.back().objnum + m_IndexArray.back().count;
-    int index = 0;
-    for (; m_dwTempObjNum < end_num; m_dwTempObjNum++) {
-      FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(m_dwTempObjNum);
-      if (offset) {
-        if (index >= iSize ||
-            m_dwTempObjNum != m_ObjStream.m_Items[index].objnum) {
-          AppendIndex1(m_Buffer, *offset);
-        } else {
-          AppendIndex2(m_Buffer, dwObjStmNum, index++);
-        }
-      } else {
-        AppendIndex0(m_Buffer, false);
-      }
-    }
-    if (iSize > 0 && bEOF) {
-      pCreator->m_ObjectOffset.Add(dwObjStmNum, 1);
-      pCreator->m_ObjectOffset[dwObjStmNum] = objOffset;
-    }
-    m_iSeg = iSeg;
-    if (bEOF) {
-      m_ObjStream.Start();
-    }
-    return 1;
-  }
-  for (auto it = m_IndexArray.begin() + m_iSeg; it != m_IndexArray.end();
-       ++it) {
-    for (uint32_t m = it->objnum; m < it->objnum + it->count; ++m) {
-      if (m_ObjStream.m_index >= iSize ||
-          m != m_ObjStream.m_Items[it - m_IndexArray.begin()].objnum) {
-        AppendIndex1(m_Buffer, pCreator->m_ObjectOffset[m]);
-      } else {
-        AppendIndex2(m_Buffer, dwObjStmNum, m_ObjStream.m_index++);
-      }
-    }
-  }
-  if (iSize > 0 && bEOF) {
-    AppendIndex1(m_Buffer, objOffset);
-    m_IndexArray.push_back({dwObjStmNum, 1});
-    iSeg += 1;
-  }
-  m_iSeg = iSeg;
-  if (bEOF) {
-    m_ObjStream.Start();
-  }
-  return 1;
-}
-FX_BOOL CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator,
-                                            FX_BOOL bEOF) {
-  FX_FILESIZE offset_tmp = pCreator->m_Offset;
-  uint32_t objnum = ++pCreator->m_dwLastObjNum;
-  CFX_FileBufferArchive* pFile = &pCreator->m_File;
-  FX_BOOL bIncremental = (pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL) != 0;
-  if (bIncremental) {
-    AddObjectNumberToIndexArray(objnum);
-  } else {
-    for (; m_dwTempObjNum < pCreator->m_dwLastObjNum; m_dwTempObjNum++) {
-      FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(m_dwTempObjNum);
-      if (offset) {
-        AppendIndex1(m_Buffer, *offset);
-      } else {
-        AppendIndex0(m_Buffer, false);
-      }
-    }
-  }
-  AppendIndex1(m_Buffer, offset_tmp);
-  FX_FILESIZE& offset = pCreator->m_Offset;
-  int32_t len = pFile->AppendDWord(objnum);
-  if (len < 0) {
-    return FALSE;
-  }
-  offset += len;
-  if ((len = pFile->AppendString(" 0 obj\r\n<</Type /XRef/W[1 4 2]/Index[")) <
-      0) {
-    return FALSE;
-  }
-  offset += len;
-  if (!bIncremental) {
-    if ((len = pFile->AppendDWord(0)) < 0) {
-      return FALSE;
-    }
-    if ((len = pFile->AppendString(" ")) < 0) {
-      return FALSE;
-    }
-    offset += len + 1;
-    if ((len = pFile->AppendDWord(objnum + 1)) < 0) {
-      return FALSE;
-    }
-    offset += len;
-  } else {
-    for (const auto& pair : m_IndexArray) {
-      if ((len = pFile->AppendDWord(pair.objnum)) < 0) {
-        return FALSE;
-      }
-      if (pFile->AppendString(" ") < 0) {
-        return FALSE;
-      }
-      offset += len + 1;
-      if ((len = pFile->AppendDWord(pair.count)) < 0) {
-        return FALSE;
-      }
-      if (pFile->AppendString(" ") < 0) {
-        return FALSE;
-      }
-      offset += len + 1;
-    }
-  }
-  if (pFile->AppendString("]/Size ") < 0) {
-    return FALSE;
-  }
-  if ((len = pFile->AppendDWord(objnum + 1)) < 0) {
-    return FALSE;
-  }
-  offset += len + 7;
-  if (m_PrevOffset > 0) {
-    if (pFile->AppendString("/Prev ") < 0) {
-      return FALSE;
-    }
-    FX_CHAR offset_buf[20];
-    FXSYS_memset(offset_buf, 0, sizeof(offset_buf));
-    FXSYS_i64toa(m_PrevOffset, offset_buf, 10);
-    int32_t offset_len = (int32_t)FXSYS_strlen(offset_buf);
-    if (pFile->AppendBlock(offset_buf, offset_len) < 0) {
-      return FALSE;
-    }
-    offset += offset_len + 6;
-  }
-  CPDF_FlateEncoder encoder(m_Buffer.GetBuffer(), m_Buffer.GetLength(), TRUE,
-                            TRUE);
-  if (pFile->AppendString("/Filter /FlateDecode") < 0)
-    return FALSE;
-
-  offset += 20;
-  if ((len = pFile->AppendString("/DecodeParms<</Columns 7/Predictor 12>>")) <
-      0) {
-    return FALSE;
-  }
-
-  offset += len;
-  if (pFile->AppendString("/Length ") < 0)
-    return FALSE;
-
-  if ((len = pFile->AppendDWord(encoder.m_dwSize)) < 0)
-    return FALSE;
-
-  offset += len + 8;
-  if (bEOF) {
-    if ((len = PDF_CreatorWriteTrailer(pCreator->m_pDocument, pFile,
-                                       pCreator->m_pIDArray.get())) < 0) {
-      return FALSE;
-    }
-    offset += len;
-    if (pCreator->m_pEncryptDict) {
-      uint32_t dwEncryptObjNum = pCreator->m_pEncryptDict->GetObjNum();
-      if (dwEncryptObjNum == 0) {
-        dwEncryptObjNum = pCreator->m_dwEncryptObjNum;
-      }
-      if ((len = PDF_CreatorWriteEncrypt(pCreator->m_pEncryptDict,
-                                         dwEncryptObjNum, pFile)) < 0) {
-        return FALSE;
-      }
-      offset += len;
-    }
-  }
-  if ((len = pFile->AppendString(">>stream\r\n")) < 0) {
-    return FALSE;
-  }
-  offset += len;
-  if (pFile->AppendBlock(encoder.m_pData, encoder.m_dwSize) < 0) {
-    return FALSE;
-  }
-  if ((len = pFile->AppendString("\r\nendstream\r\nendobj\r\n")) < 0) {
-    return FALSE;
-  }
-  offset += encoder.m_dwSize + len;
-  m_PrevOffset = offset_tmp;
-  return TRUE;
-}
-FX_BOOL CPDF_XRefStream::End(CPDF_Creator* pCreator, FX_BOOL bEOF) {
-  if (EndObjectStream(pCreator, bEOF) < 0) {
-    return FALSE;
-  }
-  return GenerateXRefStream(pCreator, bEOF);
-}
-FX_BOOL CPDF_XRefStream::EndXRefStream(CPDF_Creator* pCreator) {
-  if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) {
-    AppendIndex0(m_Buffer, true);
-    for (uint32_t i = 1; i < pCreator->m_dwLastObjNum + 1; i++) {
-      FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(i);
-      if (offset) {
-        AppendIndex1(m_Buffer, *offset);
-      } else {
-        AppendIndex0(m_Buffer, false);
-      }
-    }
-  } else {
-    for (const auto& pair : m_IndexArray) {
-      for (uint32_t j = pair.objnum; j < pair.objnum + pair.count; ++j)
-        AppendIndex1(m_Buffer, pCreator->m_ObjectOffset[j]);
-    }
-  }
-  return GenerateXRefStream(pCreator, FALSE);
-}
-void CPDF_XRefStream::AddObjectNumberToIndexArray(uint32_t objnum) {
-  if (m_IndexArray.empty()) {
-    m_IndexArray.push_back({objnum, 1});
-    return;
-  }
-  uint32_t next_objnum = m_IndexArray.back().objnum + m_IndexArray.back().count;
-  if (objnum == next_objnum)
-    m_IndexArray.back().count += 1;
-  else
-    m_IndexArray.push_back({objnum, 1});
-}
-
-CPDF_Creator::CPDF_Creator(CPDF_Document* pDoc)
-    : m_pDocument(pDoc),
-      m_pParser(pDoc->GetParser()),
-      m_bSecurityChanged(FALSE),
-      m_pEncryptDict(m_pParser ? m_pParser->GetEncryptDict() : nullptr),
-      m_dwEncryptObjNum(0),
-      m_bEncryptCloned(FALSE),
-      m_pCryptoHandler(m_pParser ? m_pParser->GetCryptoHandler() : nullptr),
-      m_bLocalCryptoHandler(FALSE),
-      m_pMetadata(nullptr),
-      m_ObjectStreamSize(200),
-      m_dwLastObjNum(m_pDocument->GetLastObjNum()),
-      m_Offset(0),
-      m_iStage(-1),
-      m_dwFlags(0),
-      m_Pos(nullptr),
-      m_XrefStart(0),
-      m_pIDArray(nullptr),
-      m_FileVersion(0) {}
-
-CPDF_Creator::~CPDF_Creator() {
-  ResetStandardSecurity();
-  if (m_bEncryptCloned && m_pEncryptDict) {
-    m_pEncryptDict->Release();
-    m_pEncryptDict = nullptr;
-  }
-  Clear();
-}
-
-int32_t CPDF_Creator::WriteIndirectObjectToStream(const CPDF_Object* pObj) {
-  if (!m_pXRefStream)
-    return 1;
-
-  uint32_t objnum = pObj->GetObjNum();
-  if (m_pParser && m_pParser->GetObjectGenNum(objnum) > 0)
-    return 1;
-
-  if (pObj->IsNumber())
-    return 1;
-
-  CPDF_Dictionary* pDict = pObj->GetDict();
-  if (pObj->IsStream()) {
-    if (pDict && pDict->GetStringFor("Type") == "XRef")
-      return 0;
-    return 1;
-  }
-
-  if (pDict) {
-    if (pDict == m_pDocument->GetRoot() || pDict == m_pEncryptDict)
-      return 1;
-    if (pDict->IsSignatureDict())
-      return 1;
-    if (pDict->GetStringFor("Type") == "Page")
-      return 1;
-  }
-
-  m_pXRefStream->AddObjectNumberToIndexArray(objnum);
-  if (m_pXRefStream->CompressIndirectObject(objnum, pObj, this) < 0)
-    return -1;
-  if (!IsXRefNeedEnd(m_pXRefStream.get(), m_dwFlags))
-    return 0;
-  if (!m_pXRefStream->End(this))
-    return -1;
-  if (!m_pXRefStream->Start())
-    return -1;
-  return 0;
-}
-int32_t CPDF_Creator::WriteIndirectObjectToStream(uint32_t objnum,
-                                                  const uint8_t* pBuffer,
-                                                  uint32_t dwSize) {
-  if (!m_pXRefStream) {
-    return 1;
-  }
-  m_pXRefStream->AddObjectNumberToIndexArray(objnum);
-  int32_t iRet =
-      m_pXRefStream->CompressIndirectObject(objnum, pBuffer, dwSize, this);
-  if (iRet < 1) {
-    return iRet;
-  }
-  if (!IsXRefNeedEnd(m_pXRefStream.get(), m_dwFlags)) {
-    return 0;
-  }
-  if (!m_pXRefStream->End(this)) {
-    return -1;
-  }
-  if (!m_pXRefStream->Start()) {
-    return -1;
-  }
-  return 0;
-}
-int32_t CPDF_Creator::AppendObjectNumberToXRef(uint32_t objnum) {
-  if (!m_pXRefStream) {
-    return 1;
-  }
-  m_pXRefStream->AddObjectNumberToIndexArray(objnum);
-  if (!IsXRefNeedEnd(m_pXRefStream.get(), m_dwFlags)) {
-    return 0;
-  }
-  if (!m_pXRefStream->End(this)) {
-    return -1;
-  }
-  if (!m_pXRefStream->Start()) {
-    return -1;
-  }
-  return 0;
-}
-int32_t CPDF_Creator::WriteStream(const CPDF_Object* pStream,
-                                  uint32_t objnum,
-                                  CPDF_CryptoHandler* pCrypto) {
-  CPDF_FlateEncoder encoder(const_cast<CPDF_Stream*>(pStream->AsStream()),
-                            pStream != m_pMetadata);
-  CPDF_Encryptor encryptor(pCrypto, objnum, encoder.m_pData, encoder.m_dwSize);
-  if ((uint32_t)encoder.m_pDict->GetIntegerFor("Length") !=
-      encryptor.m_dwSize) {
-    encoder.CloneDict();
-    encoder.m_pDict->SetIntegerFor("Length", encryptor.m_dwSize);
-  }
-  if (WriteDirectObj(objnum, encoder.m_pDict) < 0) {
-    return -1;
-  }
-  int len = m_File.AppendString("stream\r\n");
-  if (len < 0) {
-    return -1;
-  }
-  m_Offset += len;
-  if (m_File.AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
-    return -1;
-  }
-  m_Offset += encryptor.m_dwSize;
-  if ((len = m_File.AppendString("\r\nendstream")) < 0) {
-    return -1;
-  }
-  m_Offset += len;
-  return 1;
-}
-int32_t CPDF_Creator::WriteIndirectObj(uint32_t objnum,
-                                       const CPDF_Object* pObj) {
-  int32_t len = m_File.AppendDWord(objnum);
-  if (len < 0)
-    return -1;
-
-  m_Offset += len;
-  if ((len = m_File.AppendString(" 0 obj\r\n")) < 0)
-    return -1;
-
-  m_Offset += len;
-  if (pObj->IsStream()) {
-    CPDF_CryptoHandler* pHandler =
-        pObj != m_pMetadata ? m_pCryptoHandler : nullptr;
-    if (WriteStream(pObj, objnum, pHandler) < 0)
-      return -1;
-  } else {
-    if (WriteDirectObj(objnum, pObj) < 0)
-      return -1;
-  }
-  if ((len = m_File.AppendString("\r\nendobj\r\n")) < 0)
-    return -1;
-
-  m_Offset += len;
-  if (AppendObjectNumberToXRef(objnum) < 0)
-    return -1;
-  return 0;
-}
-int32_t CPDF_Creator::WriteIndirectObj(const CPDF_Object* pObj) {
-  int32_t iRet = WriteIndirectObjectToStream(pObj);
-  if (iRet < 1) {
-    return iRet;
-  }
-  return WriteIndirectObj(pObj->GetObjNum(), pObj);
-}
-int32_t CPDF_Creator::WriteDirectObj(uint32_t objnum,
-                                     const CPDF_Object* pObj,
-                                     FX_BOOL bEncrypt) {
-  int32_t len = 0;
-  if (!pObj) {
-    if (m_File.AppendString(" null") < 0) {
-      return -1;
-    }
-    m_Offset += 5;
-    return 1;
-  }
-  switch (pObj->GetType()) {
-    case CPDF_Object::NULLOBJ:
-      if (m_File.AppendString(" null") < 0) {
-        return -1;
-      }
-      m_Offset += 5;
-      break;
-    case CPDF_Object::BOOLEAN:
-    case CPDF_Object::NUMBER:
-      if (m_File.AppendString(" ") < 0) {
-        return -1;
-      }
-      if ((len = m_File.AppendString(pObj->GetString().AsStringC())) < 0) {
-        return -1;
-      }
-      m_Offset += len + 1;
-      break;
-    case CPDF_Object::STRING: {
-      CFX_ByteString str = pObj->GetString();
-      FX_BOOL bHex = pObj->AsString()->IsHex();
-      if (!m_pCryptoHandler || !bEncrypt) {
-        CFX_ByteString content = PDF_EncodeString(str, bHex);
-        if ((len = m_File.AppendString(content.AsStringC())) < 0) {
-          return -1;
-        }
-        m_Offset += len;
-        break;
-      }
-      CPDF_Encryptor encryptor(m_pCryptoHandler, objnum, (uint8_t*)str.c_str(),
-                               str.GetLength());
-      CFX_ByteString content = PDF_EncodeString(
-          CFX_ByteString((const FX_CHAR*)encryptor.m_pData, encryptor.m_dwSize),
-          bHex);
-      if ((len = m_File.AppendString(content.AsStringC())) < 0) {
-        return -1;
-      }
-      m_Offset += len;
-      break;
-    }
-    case CPDF_Object::STREAM: {
-      CPDF_FlateEncoder encoder(const_cast<CPDF_Stream*>(pObj->AsStream()),
-                                TRUE);
-      CPDF_Encryptor encryptor(m_pCryptoHandler, objnum, encoder.m_pData,
-                               encoder.m_dwSize);
-      if ((uint32_t)encoder.m_pDict->GetIntegerFor("Length") !=
-          encryptor.m_dwSize) {
-        encoder.CloneDict();
-        encoder.m_pDict->SetIntegerFor("Length", encryptor.m_dwSize);
-      }
-      if (WriteDirectObj(objnum, encoder.m_pDict) < 0) {
-        return -1;
-      }
-      if ((len = m_File.AppendString("stream\r\n")) < 0) {
-        return -1;
-      }
-      m_Offset += len;
-      if (m_File.AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
-        return -1;
-      }
-      m_Offset += encryptor.m_dwSize;
-      if ((len = m_File.AppendString("\r\nendstream")) < 0) {
-        return -1;
-      }
-      m_Offset += len;
-      break;
-    }
-    case CPDF_Object::NAME: {
-      if (m_File.AppendString("/") < 0) {
-        return -1;
-      }
-      CFX_ByteString str = pObj->GetString();
-      if ((len = m_File.AppendString(PDF_NameEncode(str).AsStringC())) < 0) {
-        return -1;
-      }
-      m_Offset += len + 1;
-      break;
-    }
-    case CPDF_Object::REFERENCE: {
-      if (m_File.AppendString(" ") < 0)
-        return -1;
-      if ((len = m_File.AppendDWord(pObj->AsReference()->GetRefObjNum())) < 0)
-        return -1;
-      if (m_File.AppendString(" 0 R") < 0)
-        return -1;
-      m_Offset += len + 5;
-      break;
-    }
-    case CPDF_Object::ARRAY: {
-      if (m_File.AppendString("[") < 0) {
-        return -1;
-      }
-      m_Offset += 1;
-      const CPDF_Array* p = pObj->AsArray();
-      for (size_t i = 0; i < p->GetCount(); i++) {
-        CPDF_Object* pElement = p->GetObjectAt(i);
-        if (pElement->GetObjNum()) {
-          if (m_File.AppendString(" ") < 0) {
-            return -1;
-          }
-          if ((len = m_File.AppendDWord(pElement->GetObjNum())) < 0) {
-            return -1;
-          }
-          if (m_File.AppendString(" 0 R") < 0) {
-            return -1;
-          }
-          m_Offset += len + 5;
-        } else {
-          if (WriteDirectObj(objnum, pElement) < 0) {
-            return -1;
-          }
-        }
-      }
-      if (m_File.AppendString("]") < 0) {
-        return -1;
-      }
-      m_Offset += 1;
-      break;
-    }
-    case CPDF_Object::DICTIONARY: {
-      if (!m_pCryptoHandler || pObj == m_pEncryptDict)
-        return PDF_CreatorAppendObject(pObj, &m_File, m_Offset);
-      if (m_File.AppendString("<<") < 0)
-        return -1;
-
-      m_Offset += 2;
-      const CPDF_Dictionary* p = pObj->AsDictionary();
-      bool bSignDict = p->IsSignatureDict();
-      for (const auto& it : *p) {
-        FX_BOOL bSignValue = FALSE;
-        const CFX_ByteString& key = it.first;
-        CPDF_Object* pValue = it.second;
-        if (m_File.AppendString("/") < 0) {
-          return -1;
-        }
-        if ((len = m_File.AppendString(PDF_NameEncode(key).AsStringC())) < 0) {
-          return -1;
-        }
-        m_Offset += len + 1;
-        if (bSignDict && key == "Contents") {
-          bSignValue = TRUE;
-        }
-        if (pValue->GetObjNum()) {
-          if (m_File.AppendString(" ") < 0) {
-            return -1;
-          }
-          if ((len = m_File.AppendDWord(pValue->GetObjNum())) < 0) {
-            return -1;
-          }
-          if (m_File.AppendString(" 0 R ") < 0) {
-            return -1;
-          }
-          m_Offset += len + 6;
-        } else {
-          if (WriteDirectObj(objnum, pValue, !bSignValue) < 0) {
-            return -1;
-          }
-        }
-      }
-      if (m_File.AppendString(">>") < 0) {
-        return -1;
-      }
-      m_Offset += 2;
-      break;
-    }
-  }
-  return 1;
-}
-int32_t CPDF_Creator::WriteOldIndirectObject(uint32_t objnum) {
-  if (m_pParser->IsObjectFreeOrNull(objnum))
-    return 0;
-
-  m_ObjectOffset[objnum] = m_Offset;
-  FX_BOOL bExistInMap = !!m_pDocument->GetIndirectObject(objnum);
-  const uint8_t object_type = m_pParser->GetObjectType(objnum);
-  bool bObjStm = (object_type == 2) && m_pEncryptDict && !m_pXRefStream;
-  if (m_pParser->IsVersionUpdated() || m_bSecurityChanged || bExistInMap ||
-      bObjStm) {
-    CPDF_Object* pObj = m_pDocument->GetOrParseIndirectObject(objnum);
-    if (!pObj) {
-      m_ObjectOffset[objnum] = 0;
-      return 0;
-    }
-    if (WriteIndirectObj(pObj)) {
-      return -1;
-    }
-    if (!bExistInMap) {
-      m_pDocument->ReleaseIndirectObject(objnum);
-    }
-  } else {
-    uint8_t* pBuffer;
-    uint32_t size;
-    m_pParser->GetIndirectBinary(objnum, pBuffer, size);
-    if (!pBuffer) {
-      return 0;
-    }
-    if (object_type == 2) {
-      if (m_pXRefStream) {
-        if (WriteIndirectObjectToStream(objnum, pBuffer, size) < 0) {
-          FX_Free(pBuffer);
-          return -1;
-        }
-      } else {
-        int32_t len = m_File.AppendDWord(objnum);
-        if (len < 0) {
-          return -1;
-        }
-        if (m_File.AppendString(" 0 obj ") < 0) {
-          return -1;
-        }
-        m_Offset += len + 7;
-        if (m_File.AppendBlock(pBuffer, size) < 0) {
-          return -1;
-        }
-        m_Offset += size;
-        if (m_File.AppendString("\r\nendobj\r\n") < 0) {
-          return -1;
-        }
-        m_Offset += 10;
-      }
-    } else {
-      if (m_File.AppendBlock(pBuffer, size) < 0) {
-        return -1;
-      }
-      m_Offset += size;
-      if (AppendObjectNumberToXRef(objnum) < 0) {
-        return -1;
-      }
-    }
-    FX_Free(pBuffer);
-  }
-  return 1;
-}
-int32_t CPDF_Creator::WriteOldObjs(IFX_Pause* pPause) {
-  uint32_t nLastObjNum = m_pParser->GetLastObjNum();
-  if (!m_pParser->IsValidObjectNumber(nLastObjNum))
-    return 0;
-
-  uint32_t objnum = (uint32_t)(uintptr_t)m_Pos;
-  for (; objnum <= nLastObjNum; ++objnum) {
-    int32_t iRet = WriteOldIndirectObject(objnum);
-    if (iRet < 0)
-      return iRet;
-
-    if (!iRet)
-      continue;
-
-    if (pPause && pPause->NeedToPauseNow()) {
-      m_Pos = (void*)(uintptr_t)(objnum + 1);
-      return 1;
-    }
-  }
-  return 0;
-}
-int32_t CPDF_Creator::WriteNewObjs(FX_BOOL bIncremental, IFX_Pause* pPause) {
-  int32_t iCount = m_NewObjNumArray.GetSize();
-  int32_t index = (int32_t)(uintptr_t)m_Pos;
-  while (index < iCount) {
-    uint32_t objnum = m_NewObjNumArray.ElementAt(index);
-    CPDF_Object* pObj = m_pDocument->GetIndirectObject(objnum);
-    if (!pObj) {
-      ++index;
-      continue;
-    }
-    m_ObjectOffset[objnum] = m_Offset;
-    if (WriteIndirectObj(pObj))
-      return -1;
-
-    index++;
-    if (pPause && pPause->NeedToPauseNow()) {
-      m_Pos = (FX_POSITION)(uintptr_t)index;
-      return 1;
-    }
-  }
-  return 0;
-}
-void CPDF_Creator::InitOldObjNumOffsets() {
-  if (!m_pParser) {
-    return;
-  }
-  uint32_t j = 0;
-  uint32_t dwStart = 0;
-  uint32_t dwEnd = m_pParser->GetLastObjNum();
-  while (dwStart <= dwEnd) {
-    while (dwStart <= dwEnd && m_pParser->IsObjectFreeOrNull(dwStart))
-      dwStart++;
-
-    if (dwStart > dwEnd)
-      break;
-
-    j = dwStart;
-    while (j <= dwEnd && !m_pParser->IsObjectFreeOrNull(j))
-      j++;
-
-    m_ObjectOffset.Add(dwStart, j - dwStart);
-    dwStart = j;
-  }
-}
-
-void CPDF_Creator::InitNewObjNumOffsets() {
-  FX_BOOL bIncremental = (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0;
-  FX_BOOL bNoOriginal = (m_dwFlags & FPDFCREATE_NO_ORIGINAL) != 0;
-  for (const auto& pair : *m_pDocument) {
-    const uint32_t objnum = pair.first;
-    const CPDF_Object* pObj = pair.second.get();
-    if (bIncremental || pObj->GetObjNum() == CPDF_Object::kInvalidObjNum)
-      continue;
-    if (m_pParser && m_pParser->IsValidObjectNumber(objnum) &&
-        m_pParser->GetObjectType(objnum)) {
-      continue;
-    }
-    AppendNewObjNum(objnum);
-  }
-
-  int32_t iCount = m_NewObjNumArray.GetSize();
-  if (iCount == 0)
-    return;
-
-  int32_t i = 0;
-  uint32_t dwStartObjNum = 0;
-  FX_BOOL bCrossRefValid = m_pParser && m_pParser->GetLastXRefOffset() > 0;
-  while (i < iCount) {
-    dwStartObjNum = m_NewObjNumArray.ElementAt(i);
-    if ((bIncremental && (bNoOriginal || bCrossRefValid)) ||
-        !m_ObjectOffset.GetPtrAt(dwStartObjNum)) {
-      break;
-    }
-    i++;
-  }
-  if (i >= iCount)
-    return;
-
-  uint32_t dwLastObjNum = dwStartObjNum;
-  i++;
-  bool bNewStart = false;
-  for (; i < iCount; i++) {
-    uint32_t dwCurObjNum = m_NewObjNumArray.ElementAt(i);
-    bool bExist = m_pParser && m_pParser->IsValidObjectNumber(dwCurObjNum) &&
-                  m_ObjectOffset.GetPtrAt(dwCurObjNum);
-    if (bExist || dwCurObjNum - dwLastObjNum > 1) {
-      if (!bNewStart)
-        m_ObjectOffset.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
-      dwStartObjNum = dwCurObjNum;
-    }
-    if (bNewStart)
-      dwStartObjNum = dwCurObjNum;
-
-    bNewStart = bExist;
-    dwLastObjNum = dwCurObjNum;
-  }
-  m_ObjectOffset.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
-}
-
-void CPDF_Creator::AppendNewObjNum(uint32_t objbum) {
-  int32_t iStart = 0, iFind = 0;
-  int32_t iEnd = m_NewObjNumArray.GetUpperBound();
-  while (iStart <= iEnd) {
-    int32_t iMid = (iStart + iEnd) / 2;
-    uint32_t dwMid = m_NewObjNumArray.ElementAt(iMid);
-    if (objbum < dwMid) {
-      iEnd = iMid - 1;
-    } else {
-      if (iMid == iEnd) {
-        iFind = iMid + 1;
-        break;
-      }
-      uint32_t dwNext = m_NewObjNumArray.ElementAt(iMid + 1);
-      if (objbum < dwNext) {
-        iFind = iMid + 1;
-        break;
-      }
-      iStart = iMid + 1;
-    }
-  }
-  m_NewObjNumArray.InsertAt(iFind, objbum);
-}
-int32_t CPDF_Creator::WriteDoc_Stage1(IFX_Pause* pPause) {
-  ASSERT(m_iStage > -1 || m_iStage < 20);
-  if (m_iStage == 0) {
-    if (!m_pParser) {
-      m_dwFlags &= ~FPDFCREATE_INCREMENTAL;
-    }
-    if (m_bSecurityChanged && (m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0) {
-      m_dwFlags &= ~FPDFCREATE_INCREMENTAL;
-    }
-    CPDF_Dictionary* pDict = m_pDocument->GetRoot();
-    m_pMetadata = pDict ? pDict->GetDirectObjectFor("Metadata") : nullptr;
-    if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) {
-      m_pXRefStream.reset(new CPDF_XRefStream);
-      m_pXRefStream->Start();
-      if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser) {
-        FX_FILESIZE prev = m_pParser->GetLastXRefOffset();
-        m_pXRefStream->m_PrevOffset = prev;
-      }
-    }
-    m_iStage = 10;
-  }
-  if (m_iStage == 10) {
-    if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0) {
-      if (m_File.AppendString("%PDF-1.") < 0) {
-        return -1;
-      }
-      m_Offset += 7;
-      int32_t version = 7;
-      if (m_FileVersion) {
-        version = m_FileVersion;
-      } else if (m_pParser) {
-        version = m_pParser->GetFileVersion();
-      }
-      int32_t len = m_File.AppendDWord(version % 10);
-      if (len < 0) {
-        return -1;
-      }
-      m_Offset += len;
-      if ((len = m_File.AppendString("\r\n%\xA1\xB3\xC5\xD7\r\n")) < 0) {
-        return -1;
-      }
-      m_Offset += len;
-      InitOldObjNumOffsets();
-      m_iStage = 20;
-    } else {
-      IFX_FileRead* pSrcFile = m_pParser->GetFileAccess();
-      m_Offset = pSrcFile->GetSize();
-      m_Pos = (void*)(uintptr_t)m_Offset;
-      m_iStage = 15;
-    }
-  }
-  if (m_iStage == 15) {
-    if ((m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0 && m_Pos) {
-      IFX_FileRead* pSrcFile = m_pParser->GetFileAccess();
-      uint8_t buffer[4096];
-      uint32_t src_size = (uint32_t)(uintptr_t)m_Pos;
-      while (src_size) {
-        uint32_t block_size = src_size > 4096 ? 4096 : src_size;
-        if (!pSrcFile->ReadBlock(buffer, m_Offset - src_size, block_size)) {
-          return -1;
-        }
-        if (m_File.AppendBlock(buffer, block_size) < 0) {
-          return -1;
-        }
-        src_size -= block_size;
-        if (pPause && pPause->NeedToPauseNow()) {
-          m_Pos = (void*)(uintptr_t)src_size;
-          return 1;
-        }
-      }
-    }
-    if ((m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0 &&
-        m_pParser->GetLastXRefOffset() == 0) {
-      InitOldObjNumOffsets();
-      uint32_t dwEnd = m_pParser->GetLastObjNum();
-      bool bObjStm = (m_dwFlags & FPDFCREATE_OBJECTSTREAM) != 0;
-      for (uint32_t objnum = 0; objnum <= dwEnd; objnum++) {
-        if (m_pParser->IsObjectFreeOrNull(objnum))
-          continue;
-
-        m_ObjectOffset[objnum] = m_pParser->GetObjectPositionOrZero(objnum);
-        if (bObjStm) {
-          m_pXRefStream->AddObjectNumberToIndexArray(objnum);
-        }
-      }
-      if (bObjStm) {
-        m_pXRefStream->EndXRefStream(this);
-        m_pXRefStream->Start();
-      }
-    }
-    m_iStage = 20;
-  }
-  InitNewObjNumOffsets();
-  return m_iStage;
-}
-int32_t CPDF_Creator::WriteDoc_Stage2(IFX_Pause* pPause) {
-  ASSERT(m_iStage >= 20 || m_iStage < 30);
-  if (m_iStage == 20) {
-    if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 && m_pParser) {
-      m_Pos = (void*)(uintptr_t)0;
-      m_iStage = 21;
-    } else {
-      m_iStage = 25;
-    }
-  }
-  if (m_iStage == 21) {
-    int32_t iRet = WriteOldObjs(pPause);
-    if (iRet) {
-      return iRet;
-    }
-    m_iStage = 25;
-  }
-  if (m_iStage == 25) {
-    m_Pos = (void*)(uintptr_t)0;
-    m_iStage = 26;
-  }
-  if (m_iStage == 26) {
-    int32_t iRet =
-        WriteNewObjs((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0, pPause);
-    if (iRet) {
-      return iRet;
-    }
-    m_iStage = 27;
-  }
-  if (m_iStage == 27) {
-    if (m_pEncryptDict && !m_pEncryptDict->GetObjNum()) {
-      m_dwLastObjNum += 1;
-      FX_FILESIZE saveOffset = m_Offset;
-      if (WriteIndirectObj(m_dwLastObjNum, m_pEncryptDict) < 0) {
-        return -1;
-      }
-      m_ObjectOffset.Add(m_dwLastObjNum, 1);
-      m_ObjectOffset[m_dwLastObjNum] = saveOffset;
-      m_dwEncryptObjNum = m_dwLastObjNum;
-      if (m_dwFlags & FPDFCREATE_INCREMENTAL) {
-        m_NewObjNumArray.Add(m_dwLastObjNum);
-      }
-    }
-    m_iStage = 80;
-  }
-  return m_iStage;
-}
-int32_t CPDF_Creator::WriteDoc_Stage3(IFX_Pause* pPause) {
-  ASSERT(m_iStage >= 80 || m_iStage < 90);
-  uint32_t dwLastObjNum = m_dwLastObjNum;
-  if (m_iStage == 80) {
-    m_XrefStart = m_Offset;
-    if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) {
-      m_pXRefStream->End(this, TRUE);
-      m_XrefStart = m_pXRefStream->m_PrevOffset;
-      m_iStage = 90;
-    } else if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 ||
-               !m_pParser->IsXRefStream()) {
-      if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 ||
-          m_pParser->GetLastXRefOffset() == 0) {
-        CFX_ByteString str;
-        str = m_ObjectOffset.GetPtrAt(1)
-                  ? "xref\r\n"
-                  : "xref\r\n0 1\r\n0000000000 65535 f\r\n";
-        if (m_File.AppendString(str.AsStringC()) < 0) {
-          return -1;
-        }
-        m_Pos = (void*)(uintptr_t)1;
-        m_iStage = 81;
-      } else {
-        if (m_File.AppendString("xref\r\n") < 0) {
-          return -1;
-        }
-        m_Pos = (void*)(uintptr_t)0;
-        m_iStage = 82;
-      }
-    } else {
-      m_iStage = 90;
-    }
-  }
-  if (m_iStage == 81) {
-    CFX_ByteString str;
-    uint32_t i = (uint32_t)(uintptr_t)m_Pos, j;
-    while (i <= dwLastObjNum) {
-      while (i <= dwLastObjNum && !m_ObjectOffset.GetPtrAt(i)) {
-        i++;
-      }
-      if (i > dwLastObjNum) {
-        break;
-      }
-      j = i;
-      while (j <= dwLastObjNum && m_ObjectOffset.GetPtrAt(j)) {
-        j++;
-      }
-      if (i == 1) {
-        str.Format("0 %d\r\n0000000000 65535 f\r\n", j);
-      } else {
-        str.Format("%d %d\r\n", i, j - i);
-      }
-      if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
-        return -1;
-      }
-      while (i < j) {
-        str.Format("%010d 00000 n\r\n", m_ObjectOffset[i++]);
-        if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
-          return -1;
-        }
-      }
-      if (i > dwLastObjNum) {
-        break;
-      }
-      if (pPause && pPause->NeedToPauseNow()) {
-        m_Pos = (void*)(uintptr_t)i;
-        return 1;
-      }
-    }
-    m_iStage = 90;
-  }
-  if (m_iStage == 82) {
-    CFX_ByteString str;
-    int32_t iCount = m_NewObjNumArray.GetSize();
-    int32_t i = (int32_t)(uintptr_t)m_Pos;
-    while (i < iCount) {
-      int32_t j = i;
-      uint32_t objnum = m_NewObjNumArray.ElementAt(i);
-      while (j < iCount) {
-        if (++j == iCount) {
-          break;
-        }
-        uint32_t dwCurrent = m_NewObjNumArray.ElementAt(j);
-        if (dwCurrent - objnum > 1) {
-          break;
-        }
-        objnum = dwCurrent;
-      }
-      objnum = m_NewObjNumArray.ElementAt(i);
-      if (objnum == 1) {
-        str.Format("0 %d\r\n0000000000 65535 f\r\n", j - i + 1);
-      } else {
-        str.Format("%d %d\r\n", objnum, j - i);
-      }
-      if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
-        return -1;
-      }
-      while (i < j) {
-        objnum = m_NewObjNumArray.ElementAt(i++);
-        str.Format("%010d 00000 n\r\n", m_ObjectOffset[objnum]);
-        if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
-          return -1;
-        }
-      }
-      if (pPause && (i % 100) == 0 && pPause->NeedToPauseNow()) {
-        m_Pos = (void*)(uintptr_t)i;
-        return 1;
-      }
-    }
-    m_iStage = 90;
-  }
-  return m_iStage;
-}
-
-int32_t CPDF_Creator::WriteDoc_Stage4(IFX_Pause* pPause) {
-  ASSERT(m_iStage >= 90);
-  if ((m_dwFlags & FPDFCREATE_OBJECTSTREAM) == 0) {
-    FX_BOOL bXRefStream =
-        (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser->IsXRefStream();
-    if (!bXRefStream) {
-      if (m_File.AppendString("trailer\r\n<<") < 0) {
-        return -1;
-      }
-    } else {
-      if (m_File.AppendDWord(m_pDocument->GetLastObjNum() + 1) < 0) {
-        return -1;
-      }
-      if (m_File.AppendString(" 0 obj <<") < 0) {
-        return -1;
-      }
-    }
-    if (m_pParser) {
-      CPDF_Dictionary* p = m_pParser->GetTrailer();
-      for (const auto& it : *p) {
-        const CFX_ByteString& key = it.first;
-        CPDF_Object* pValue = it.second;
-        // TODO(ochang): Consolidate with similar check in
-        // PDF_CreatorWriteTrailer.
-        if (key == "Encrypt" || key == "Size" || key == "Filter" ||
-            key == "Index" || key == "Length" || key == "Prev" || key == "W" ||
-            key == "XRefStm" || key == "ID") {
-          continue;
-        }
-        if (m_File.AppendString(("/")) < 0) {
-          return -1;
-        }
-        if (m_File.AppendString(PDF_NameEncode(key).AsStringC()) < 0) {
-          return -1;
-        }
-        if (pValue->GetObjNum()) {
-          if (m_File.AppendString(" ") < 0) {
-            return -1;
-          }
-          if (m_File.AppendDWord(pValue->GetObjNum()) < 0) {
-            return -1;
-          }
-          if (m_File.AppendString(" 0 R ") < 0) {
-            return -1;
-          }
-        } else {
-          FX_FILESIZE offset = 0;
-          if (PDF_CreatorAppendObject(pValue, &m_File, offset) < 0) {
-            return -1;
-          }
-        }
-      }
-    } else {
-      if (m_File.AppendString("\r\n/Root ") < 0) {
-        return -1;
-      }
-      if (m_File.AppendDWord(m_pDocument->GetRoot()->GetObjNum()) < 0) {
-        return -1;
-      }
-      if (m_File.AppendString(" 0 R\r\n") < 0) {
-        return -1;
-      }
-      if (m_pDocument->GetInfo()) {
-        if (m_File.AppendString("/Info ") < 0) {
-          return -1;
-        }
-        if (m_File.AppendDWord(m_pDocument->GetInfo()->GetObjNum()) < 0) {
-          return -1;
-        }
-        if (m_File.AppendString(" 0 R\r\n") < 0) {
-          return -1;
-        }
-      }
-    }
-    if (m_pEncryptDict) {
-      if (m_File.AppendString("/Encrypt") < 0) {
-        return -1;
-      }
-      uint32_t dwObjNum = m_pEncryptDict->GetObjNum();
-      if (dwObjNum == 0) {
-        dwObjNum = m_pDocument->GetLastObjNum() + 1;
-      }
-      if (m_File.AppendString(" ") < 0) {
-        return -1;
-      }
-      if (m_File.AppendDWord(dwObjNum) < 0) {
-        return -1;
-      }
-      if (m_File.AppendString(" 0 R ") < 0) {
-        return -1;
-      }
-    }
-    if (m_File.AppendString("/Size ") < 0) {
-      return -1;
-    }
-    if (m_File.AppendDWord(m_dwLastObjNum + (bXRefStream ? 2 : 1)) < 0) {
-      return -1;
-    }
-    if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0) {
-      FX_FILESIZE prev = m_pParser->GetLastXRefOffset();
-      if (prev) {
-        if (m_File.AppendString("/Prev ") < 0) {
-          return -1;
-        }
-        FX_CHAR offset_buf[20];
-        FXSYS_memset(offset_buf, 0, sizeof(offset_buf));
-        FXSYS_i64toa(prev, offset_buf, 10);
-        if (m_File.AppendBlock(offset_buf, FXSYS_strlen(offset_buf)) < 0) {
-          return -1;
-        }
-      }
-    }
-    if (m_pIDArray) {
-      if (m_File.AppendString(("/ID")) < 0) {
-        return -1;
-      }
-      FX_FILESIZE offset = 0;
-      if (PDF_CreatorAppendObject(m_pIDArray.get(), &m_File, offset) < 0) {
-        return -1;
-      }
-    }
-    if (!bXRefStream) {
-      if (m_File.AppendString(">>") < 0) {
-        return -1;
-      }
-    } else {
-      if (m_File.AppendString("/W[0 4 1]/Index[") < 0) {
-        return -1;
-      }
-      if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser &&
-          m_pParser->GetLastXRefOffset() == 0) {
-        uint32_t i = 0;
-        for (i = 0; i < m_dwLastObjNum; i++) {
-          if (!m_ObjectOffset.GetPtrAt(i)) {
-            continue;
-          }
-          if (m_File.AppendDWord(i) < 0) {
-            return -1;
-          }
-          if (m_File.AppendString(" 1 ") < 0) {
-            return -1;
-          }
-        }
-        if (m_File.AppendString("]/Length ") < 0) {
-          return -1;
-        }
-        if (m_File.AppendDWord(m_dwLastObjNum * 5) < 0) {
-          return -1;
-        }
-        if (m_File.AppendString(">>stream\r\n") < 0) {
-          return -1;
-        }
-        for (i = 0; i < m_dwLastObjNum; i++) {
-          FX_FILESIZE* offset = m_ObjectOffset.GetPtrAt(i);
-          if (!offset) {
-            continue;
-          }
-          OutputIndex(&m_File, *offset);
-        }
-      } else {
-        int count = m_NewObjNumArray.GetSize();
-        int32_t i = 0;
-        for (i = 0; i < count; i++) {
-          uint32_t objnum = m_NewObjNumArray.ElementAt(i);
-          if (m_File.AppendDWord(objnum) < 0) {
-            return -1;
-          }
-          if (m_File.AppendString(" 1 ") < 0) {
-            return -1;
-          }
-        }
-        if (m_File.AppendString("]/Length ") < 0) {
-          return -1;
-        }
-        if (m_File.AppendDWord(count * 5) < 0) {
-          return -1;
-        }
-        if (m_File.AppendString(">>stream\r\n") < 0) {
-          return -1;
-        }
-        for (i = 0; i < count; i++) {
-          uint32_t objnum = m_NewObjNumArray.ElementAt(i);
-          FX_FILESIZE offset = m_ObjectOffset[objnum];
-          OutputIndex(&m_File, offset);
-        }
-      }
-      if (m_File.AppendString("\r\nendstream") < 0) {
-        return -1;
-      }
-    }
-  }
-  if (m_File.AppendString("\r\nstartxref\r\n") < 0) {
-    return -1;
-  }
-  FX_CHAR offset_buf[20];
-  FXSYS_memset(offset_buf, 0, sizeof(offset_buf));
-  FXSYS_i64toa(m_XrefStart, offset_buf, 10);
-  if (m_File.AppendBlock(offset_buf, FXSYS_strlen(offset_buf)) < 0) {
-    return -1;
-  }
-  if (m_File.AppendString("\r\n%%EOF\r\n") < 0) {
-    return -1;
-  }
-  m_File.Flush();
-  return m_iStage = 100;
-}
-
-void CPDF_Creator::Clear() {
-  m_pXRefStream.reset();
-  m_File.Clear();
-  m_NewObjNumArray.RemoveAll();
-  m_pIDArray.reset();
-}
-
-bool CPDF_Creator::Create(IFX_StreamWrite* pFile, uint32_t flags) {
-  m_File.AttachFile(pFile);
-  return Create(flags);
-}
-
-bool CPDF_Creator::Create(uint32_t flags) {
-  m_dwFlags = flags;
-  m_iStage = 0;
-  m_Offset = 0;
-  m_dwLastObjNum = m_pDocument->GetLastObjNum();
-  m_ObjectOffset.Clear();
-  m_NewObjNumArray.RemoveAll();
-  InitID();
-  if (flags & FPDFCREATE_PROGRESSIVE)
-    return true;
-  return Continue(nullptr) > -1;
-}
-
-void CPDF_Creator::InitID(FX_BOOL bDefault) {
-  CPDF_Array* pOldIDArray = m_pParser ? m_pParser->GetIDArray() : nullptr;
-  FX_BOOL bNewId = !m_pIDArray;
-  if (bNewId) {
-    m_pIDArray.reset(new CPDF_Array);
-    CPDF_Object* pID1 = pOldIDArray ? pOldIDArray->GetObjectAt(0) : nullptr;
-    if (pID1) {
-      m_pIDArray->Add(pID1->Clone());
-    } else {
-      std::vector<uint8_t> buffer =
-          PDF_GenerateFileID((uint32_t)(uintptr_t) this, m_dwLastObjNum);
-      CFX_ByteString bsBuffer(buffer.data(), buffer.size());
-      m_pIDArray->Add(new CPDF_String(bsBuffer, TRUE));
-    }
-  }
-  if (!bDefault) {
-    return;
-  }
-  if (pOldIDArray) {
-    CPDF_Object* pID2 = pOldIDArray->GetObjectAt(1);
-    if ((m_dwFlags & FPDFCREATE_INCREMENTAL) && m_pEncryptDict && pID2) {
-      m_pIDArray->Add(pID2->Clone());
-      return;
-    }
-    std::vector<uint8_t> buffer =
-        PDF_GenerateFileID((uint32_t)(uintptr_t) this, m_dwLastObjNum);
-    CFX_ByteString bsBuffer(buffer.data(), buffer.size());
-    m_pIDArray->Add(new CPDF_String(bsBuffer, TRUE));
-    return;
-  }
-  m_pIDArray->Add(m_pIDArray->GetObjectAt(0)->Clone());
-  if (m_pEncryptDict && !pOldIDArray && m_pParser && bNewId) {
-    if (m_pEncryptDict->GetStringFor("Filter") == "Standard") {
-      CFX_ByteString user_pass = m_pParser->GetPassword();
-      uint32_t flag = PDF_ENCRYPT_CONTENT;
-
-      CPDF_SecurityHandler handler;
-      handler.OnCreate(m_pEncryptDict, m_pIDArray.get(), user_pass.raw_str(),
-                       user_pass.GetLength(), flag);
-      if (m_bLocalCryptoHandler)
-        delete m_pCryptoHandler;
-      m_pCryptoHandler = new CPDF_CryptoHandler;
-      m_pCryptoHandler->Init(m_pEncryptDict, &handler);
-      m_bLocalCryptoHandler = TRUE;
-      m_bSecurityChanged = TRUE;
-    }
-  }
-}
-int32_t CPDF_Creator::Continue(IFX_Pause* pPause) {
-  if (m_iStage < 0) {
-    return m_iStage;
-  }
-  int32_t iRet = 0;
-  while (m_iStage < 100) {
-    if (m_iStage < 20) {
-      iRet = WriteDoc_Stage1(pPause);
-    } else if (m_iStage < 30) {
-      iRet = WriteDoc_Stage2(pPause);
-    } else if (m_iStage < 90) {
-      iRet = WriteDoc_Stage3(pPause);
-    } else {
-      iRet = WriteDoc_Stage4(pPause);
-    }
-    if (iRet < m_iStage) {
-      break;
-    }
-  }
-  if (iRet < 1 || m_iStage == 100) {
-    m_iStage = -1;
-    Clear();
-    return iRet > 99 ? 0 : (iRet < 1 ? -1 : iRet);
-  }
-  return m_iStage;
-}
-FX_BOOL CPDF_Creator::SetFileVersion(int32_t fileVersion) {
-  if (fileVersion < 10 || fileVersion > 17) {
-    return FALSE;
-  }
-  m_FileVersion = fileVersion;
-  return TRUE;
-}
-void CPDF_Creator::RemoveSecurity() {
-  ResetStandardSecurity();
-  m_bSecurityChanged = TRUE;
-  m_pEncryptDict = nullptr;
-  m_pCryptoHandler = nullptr;
-}
-void CPDF_Creator::ResetStandardSecurity() {
-  if (!m_bLocalCryptoHandler)
-    return;
-
-  delete m_pCryptoHandler;
-  m_pCryptoHandler = nullptr;
-  m_bLocalCryptoHandler = FALSE;
-}