diff --git a/common/Drawings/Externals.js b/common/Drawings/Externals.js
index 5cf3142fef..395b36c1cd 100644
--- a/common/Drawings/Externals.js
+++ b/common/Drawings/Externals.js
@@ -630,6 +630,9 @@
 
 	function checkAllFonts()
     {
+        if (undefined === window["__fonts_files"])
+            return;
+
         let g_font_files, g_font_infos;
 
         var files = window["__fonts_files"];
@@ -710,7 +713,7 @@
     window['AscFonts'].ImageLoadStatus = ImageLoadStatus;
     window['AscFonts'].CImage = CImage;
 
-    window['AscFonts'].checkAllFonts = checkAllFonts;
+    window['AscFonts']['checkAllFonts'] = window['AscFonts'].checkAllFonts = checkAllFonts;
 
     window['AscFonts'].g_font_infos_embed = [];
     window['AscFonts'].g_map_font_index_embed = {};
diff --git a/common/Native/native.js b/common/Native/native.js
index f31c166d41..49be02acd4 100644
--- a/common/Native/native.js
+++ b/common/Native/native.js
@@ -241,13 +241,21 @@ document.documentElement = _null_object;
 document.body = _null_object;
 
 // NATIVE OBJECT
-window.native = native;
 function GetNativeEngine() { return window.native; }
 
 var Api = null; // main builder object
 window.devicePixelRatio = 1;
-if (window.native && window.native.GetDevicePixelRatio)
-	window.devicePixelRatio = window.native.GetDevicePixelRatio();
+
+window.InitNativeObject = function()
+{
+	window.native = native;
+	window.devicePixelRatio = 1;
+	if (window.native && window.native.GetDevicePixelRatio)
+		window.devicePixelRatio = window.native.GetDevicePixelRatio();
+};
+
+if (undefined !== native)
+	window.InitNativeObject();
 
 // OPEN
 function NativeCreateApi(options)
diff --git a/common/libfont/engine.js b/common/libfont/engine.js
index ad24e61919..b4e3a92977 100644
--- a/common/libfont/engine.js
+++ b/common/libfont/engine.js
@@ -775,7 +775,10 @@ function onLoadFontsModule(window, undefined)
 	if (AscCommon["CZLibEngineJS"])
 		AscCommon["CZLibEngineJS"].prototype["isModuleInit"] = true;
 
-	window.nativeZlibEngine = new ZLib();
+	if (window["NATIVE_EDITOR_ENJINE"])
+		window["InitNativeZLib"] = function() { window.nativeZlibEngine = new ZLib(); };
+	else
+		window.nativeZlibEngine = new ZLib();
 
 	function Hyphenation()
 	{
diff --git a/common/libfont/engine/fonts_native.js b/common/libfont/engine/fonts_native.js
index 27d3e765e3..933da591de 100644
--- a/common/libfont/engine/fonts_native.js
+++ b/common/libfont/engine/fonts_native.js
@@ -35,7 +35,7 @@
 window['AscFonts'] = window['AscFonts'] || {};
 var AscFonts = window['AscFonts'];
 
-var g_native_engine = CreateEmbedObject("CTextMeasurerEmbed");
+var g_native_engine = null;
 
 function CReturnObject()
 {
@@ -236,4 +236,6 @@ AscFonts.Hyphen_Word = function(lang, word)
 AscFonts.onLoadModule();
 AscFonts.onLoadModule();
 
+window["InitNativeTextMeasurer"] = function() { g_native_engine = CreateEmbedObject("CTextMeasurerEmbed"); };
+
 })(window, undefined);