diff --git a/DesktopEditor/graphics/pro/js/wasm/src/drawingfile.h b/DesktopEditor/graphics/pro/js/wasm/src/drawingfile.h
index 1966a2ead5..2b2351d023 100644
--- a/DesktopEditor/graphics/pro/js/wasm/src/drawingfile.h
+++ b/DesktopEditor/graphics/pro/js/wasm/src/drawingfile.h
@@ -17,6 +17,7 @@ private:
     NSFonts::IFontManager* pFontManager;
     NSHtmlRenderer::CHTMLRendererText* pTextRenderer;
     int nType;
+    int nFileLength;
 public:
     CGraphicsFileDrawing(NSFonts::IApplicationFonts* pFonts)
     {
@@ -32,6 +33,7 @@ public:
         pFontManager->SetOwnerCache(pFontCache);
         
         nType = -1;
+        nFileLength = -1;
     }
     ~CGraphicsFileDrawing()
     {
@@ -40,10 +42,12 @@ public:
         RELEASEOBJECT(pFontManager);
         RELEASEINTERFACE(pApplicationFonts);
         nType = -1;
+        nFileLength = -1;
     }
     bool Open(BYTE* data, DWORD length, int _nType, const char* password)
     {
         nType = _nType;
+        nFileLength = length;
         if (nType == 0)
             pReader = new PdfReader::CPdfReader(pApplicationFonts);
         else if (nType == 1)
@@ -112,7 +116,7 @@ public:
     }
     std::wstring GetInfo()
     {
-        return pReader->GetInfo();
+        return pReader->GetInfo(nFileLength);
     }
 
     void DestroyText()
diff --git a/DesktopEditor/graphics/pro/officedrawingfile.h b/DesktopEditor/graphics/pro/officedrawingfile.h
index f0921d4d13..4ab520c4cb 100644
--- a/DesktopEditor/graphics/pro/officedrawingfile.h
+++ b/DesktopEditor/graphics/pro/officedrawingfile.h
@@ -85,7 +85,7 @@ public:
                                  bool bIsDarkMode = false);
 
     // Common methods for viewer
-    virtual std::wstring GetInfo() = 0;
+    virtual std::wstring GetInfo(unsigned long nFileLength) = 0;
 #ifdef BUILDING_WASM_MODULE
     virtual unsigned char* GetStructure() = 0;
     virtual unsigned char* GetLinks(int nPageIndex) = 0;
diff --git a/DjVuFile/DjVu.cpp b/DjVuFile/DjVu.cpp
index efc5334c43..c3959e60e0 100644
--- a/DjVuFile/DjVu.cpp
+++ b/DjVuFile/DjVu.cpp
@@ -98,7 +98,7 @@ void CDjVuFile::DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* p
 	if (m_pImplementation)
 		m_pImplementation->DrawPageOnRenderer(pRenderer, nPageIndex, pBreak);
 }
-std::wstring CDjVuFile::GetInfo()
+std::wstring CDjVuFile::GetInfo(unsigned long nFileLength)
 {
     if (m_pImplementation)
         return m_pImplementation->GetInfo();
diff --git a/DjVuFile/DjVu.h b/DjVuFile/DjVu.h
index 1d685be528..a883c429af 100644
--- a/DjVuFile/DjVu.h
+++ b/DjVuFile/DjVu.h
@@ -70,7 +70,7 @@ public:
     virtual int GetPagesCount();
     virtual void GetPageInfo(int nPageIndex, double* pdWidth, double* pdHeight, double* pdDpiX, double* pdDpiY);
     virtual void DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak);
-    virtual std::wstring GetInfo();
+    virtual std::wstring GetInfo(unsigned long nFileLength);
 
     void ConvertToPdf(const std::wstring& path);
 
diff --git a/PdfReader/PdfReader.cpp b/PdfReader/PdfReader.cpp
index 2a4e3d4d42..074feddbae 100644
--- a/PdfReader/PdfReader.cpp
+++ b/PdfReader/PdfReader.cpp
@@ -51,6 +51,8 @@
 #include "lib/xpdf/ImageOutputDev.h"
 #include "lib/xpdf/TextString.h"
 #include "lib/xpdf/SecurityHandler.h"
+#include "lib/xpdf/Lexer.h"
+#include "lib/xpdf/Parser.h"
 #include "Src/RendererOutputDev.h"
 
 #ifdef BUILDING_WASM_MODULE
@@ -647,10 +649,14 @@ return 0;
         }\
     }\
 
-    std::wstring CPdfReader::GetInfo()
+    std::wstring CPdfReader::GetInfo(unsigned long nFileLength)
     {
         if (!m_pInternal->m_pPDFDocument)
             return NULL;
+        XRef* xref = m_pInternal->m_pPDFDocument->getXRef();
+        BaseStream* str = m_pInternal->m_pPDFDocument->getBaseStream();
+        if (!xref || !str)
+            return NULL;
 
         std::wstring sRes = L"{";
 
@@ -690,7 +696,34 @@ return 0;
         sRes += L",\"NumberOfPages\":";
         sRes += std::to_wstring(GetPagesCount());
         sRes += L",\"FastWebView\":";
-        sRes += m_pInternal->m_pPDFDocument->isLinearized() ? L"true" : L"false";
+
+        Object obj2, obj3, obj4, obj5, obj6;
+        bool bLinearized = false;
+        obj1.initNull();
+        Parser* parser = new Parser(xref, new Lexer(xref, str->makeSubStream(str->getStart(), gFalse, 0, &obj1)), gTrue);
+        parser->getObj(&obj1);
+        parser->getObj(&obj2);
+        parser->getObj(&obj3);
+        parser->getObj(&obj4);
+        if (obj1.isInt() && obj2.isInt() && obj3.isCmd("obj") && obj4.isDict())
+        {
+            obj4.dictLookup("Linearized", &obj5);
+            obj4.dictLookup("L", &obj6);
+            if (obj5.isNum() && obj5.getNum() > 0 && obj6.isNum())
+            {
+                unsigned long size = obj6.getNum();
+                bLinearized = size == nFileLength;
+            }
+            obj6.free();
+            obj5.free();
+        }
+        obj4.free();
+        obj3.free();
+        obj2.free();
+        obj1.free();
+        delete parser;
+
+        sRes += bLinearized ? L"true" : L"false";
         sRes += L",\"Tagged\":";
         sRes += m_pInternal->m_pPDFDocument->getStructTreeRoot()->isDict() ? L"true" : L"false";
         sRes += L"}";
diff --git a/PdfReader/PdfReader.h b/PdfReader/PdfReader.h
index 583a4c1883..01b901643f 100644
--- a/PdfReader/PdfReader.h
+++ b/PdfReader/PdfReader.h
@@ -84,7 +84,7 @@ namespace PdfReader
         virtual int GetPagesCount();
         virtual void GetPageInfo(int nPageIndex, double* pdWidth, double* pdHeight, double* pdDpiX, double* pdDpiY);
         virtual void DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak);
-        virtual std::wstring GetInfo();
+        virtual std::wstring GetInfo(unsigned long nFileLength);
 
         int          GetError();
         double       GetVersion();
diff --git a/XpsFile/XpsFile.cpp b/XpsFile/XpsFile.cpp
index 0f6855159f..c8cfc939ba 100644
--- a/XpsFile/XpsFile.cpp
+++ b/XpsFile/XpsFile.cpp
@@ -180,7 +180,7 @@ void CXpsFile::DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pB
 
     m_pInternal->m_pDocument->DrawPage(nPageIndex, pRenderer, pBreak);
 }
-std::wstring CXpsFile::GetInfo()
+std::wstring CXpsFile::GetInfo(unsigned long nFileLength)
 {
     return m_pInternal->m_pDocument->GetInfo();
 }
diff --git a/XpsFile/XpsFile.h b/XpsFile/XpsFile.h
index aeb9ee2563..d015702d94 100644
--- a/XpsFile/XpsFile.h
+++ b/XpsFile/XpsFile.h
@@ -65,7 +65,7 @@ public:
     virtual int GetPagesCount();
     virtual void GetPageInfo(int nPageIndex, double* pdWidth, double* pdHeight, double* pdDpiX, double* pdDpiY);
     virtual void DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak);
-    virtual std::wstring GetInfo();
+    virtual std::wstring GetInfo(unsigned long nFileLength);
 
 #ifndef DISABLE_PDF_CONVERTATION
     void ConvertToPdf(const std::wstring& wsDstPath);