Enable security removal in FPDF_Doc_Save

fpdfsdk/include/fpdfsave.h

 // 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 _FPDFSAVE_H_
 #define _FPDFSAVE_H_
 
 #include "fpdfview.h"
@@ skipping 29 matching lines @@
         //
         int             (*WriteBlock)( FPDF_FILEWRITE* pThis, const void* pData, unsigned long size);
 
 };
 
 
 /** @brief Incremental. */
 #define FPDF_INCREMENTAL                1
 /** @brief No Incremental. */
 #define FPDF_NO_INCREMENTAL             2
-
+/** @brief Remove security. */
+#define FPDF_REMOVE_SECURITY    3
 
 // Function: FPDF_SaveAsCopy
 //                      Saves the copy of specified document in custom way.
 // Parameters:  
 //                      document                -       Handle to document. Returned by FPDF_LoadDocument and FPDF_CreateNewDocument.
 //                      pFileWrite              -       A pointer to a custom file write structure.
 //                      flags                   -       The creating flags.
 // Return value:
 //                      TRUE for succeed, FALSE for failed.
 //
@@ skipping 11 matching lines @@
 //                      TRUE if succeed, FALSE if failed.
 //
 DLLEXPORT FPDF_BOOL STDCALL FPDF_SaveWithVersion(FPDF_DOCUMENT document,FPDF_FILEWRITE * pFileWrite,
         FPDF_DWORD flags, int fileVersion);
 
 #ifdef __cplusplus
 };
 #endif
 
 #endif //_FPDFSAVE_H_