diff --git a/apps/common/main/lib/controller/Comments.js b/apps/common/main/lib/controller/Comments.js
index 65bcb0e22..a8357d176 100644
--- a/apps/common/main/lib/controller/Comments.js
+++ b/apps/common/main/lib/controller/Comments.js
@@ -144,10 +144,12 @@ define([
                     }
                 }, this, area);
             }.bind(this));
+            Common.NotificationCenter.on('protect:doclock', _.bind(this.onChangeProtectDocument, this));
         },
         onLaunch: function () {
             var filter = Common.localStorage.getKeysFilter();
             this.appPrefix = (filter && filter.length) ? filter.split(',')[0] : '';
+            this._state = {viewmode: false};
 
             this.collection                     =   this.getApplication().getCollection('Common.Collections.Comments');
             this.setComparator();
@@ -1645,16 +1647,26 @@ define([
         },
 
         setPreviewMode: function(mode) {
-            if (this.viewmode === mode) return;
-            this.viewmode = mode;
-            if (mode)
+            this._state.viewmode = mode;
+            this.updatePreviewMode();
+        },
+
+        updatePreviewMode: function() {
+            var lockMode = this._state.docProtection ? this._state.docProtection.lockMode : undefined;
+            lockMode = (lockMode===Asc.c_oAscProtection.View || lockMode===Asc.c_oAscProtection.Forms);
+            var viewmode = this._state.viewmode || lockMode;
+
+            if (this.viewmode === viewmode) return;
+            this.viewmode = viewmode;
+
+            if (viewmode)
                 this.prevcanComments = this.mode.canComments;
-            this.mode.canComments = (mode) ? false : this.prevcanComments;
+            this.mode.canComments = (viewmode) ? false : this.prevcanComments;
             this.closeEditing();
             this.setMode(this.mode);
             this.updateComments(true);
             if (this.getPopover())
-                mode ? this.getPopover().hide() : this.getPopover().update(true);
+                viewmode ? this.getPopover().hide() : this.getPopover().update(true);
         },
 
         clearCollections: function() {
@@ -1718,6 +1730,17 @@ define([
                 }
             }
             this.updateComments(true);
+        },
+
+        onChangeProtectDocument: function(props) {
+            if (!props) {
+                var docprotect = this.getApplication().getController('DocProtection');
+                props = docprotect ? docprotect.getDocProps() : null;
+            }
+            if (props) {
+                this._state.docProtection = props;
+                this.updatePreviewMode();
+            }
         }
 
     }, Common.Controllers.Comments || {}));
diff --git a/apps/common/main/lib/controller/ReviewChanges.js b/apps/common/main/lib/controller/ReviewChanges.js
index d25d1a9c6..b395255a8 100644
--- a/apps/common/main/lib/controller/ReviewChanges.js
+++ b/apps/common/main/lib/controller/ReviewChanges.js
@@ -102,7 +102,7 @@ define([
             this.userCollection =   this.getApplication().getCollection('Common.Collections.Users');
             this.viewmode = false;
 
-            this._state = {posx: -1000, posy: -1000, popoverVisible: false, previewMode: false, compareSettings: null, wsLock: false, wsProps: []};
+            this._state = {posx: -1000, posy: -1000, popoverVisible: false, previewMode: false, compareSettings: null, wsLock: false, wsProps: [], viewmode: false};
 
             Common.NotificationCenter.on('reviewchanges:turn', this.onTurnPreview.bind(this));
             Common.NotificationCenter.on('spelling:turn', this.onTurnSpelling.bind(this));
@@ -180,11 +180,20 @@ define([
         },
 
         setPreviewMode: function(mode) { //disable accept/reject in popover
-            if (this.viewmode === mode) return;
-            this.viewmode = mode;
-            if (mode)
+            this._state.viewmode = mode;
+            this.updatePreviewMode();
+        },
+
+        updatePreviewMode: function() {
+            var lockMode = this._state.docProtection ? this._state.docProtection.lockMode : undefined;
+            lockMode = (lockMode===Asc.c_oAscProtection.View || lockMode===Asc.c_oAscProtection.Forms || lockMode===Asc.c_oAscProtection.Comments);
+            var viewmode = this._state.viewmode || lockMode;
+
+            if (this.viewmode === viewmode) return;
+            this.viewmode = viewmode;
+            if (viewmode)
                 this.prevcanReview = this.appConfig.canReview;
-            this.appConfig.canReview = (mode) ? false : this.prevcanReview;
+            this.appConfig.canReview = (viewmode) ? false : this.prevcanReview;
             var me = this;
             this.popoverChanges && this.popoverChanges.each(function (model) {
                 model.set('hint', !me.appConfig.canReview);
@@ -1024,6 +1033,7 @@ define([
                 this.lockToolbar(Common.enumLock.docLockForms, props.docLock && (props.lockMode===Asc.c_oAscProtection.Forms));
                 this.lockToolbar(Common.enumLock.docLockReview, props.docLock && (props.lockMode===Asc.c_oAscProtection.Review));
                 this.lockToolbar(Common.enumLock.docLockComments, props.docLock && (props.lockMode===Asc.c_oAscProtection.Comments));
+                this.updatePreviewMode();
             }
         },
 
diff --git a/apps/documenteditor/main/app/controller/LeftMenu.js b/apps/documenteditor/main/app/controller/LeftMenu.js
index 1a9e70001..1fe6247ad 100644
--- a/apps/documenteditor/main/app/controller/LeftMenu.js
+++ b/apps/documenteditor/main/app/controller/LeftMenu.js
@@ -113,12 +113,13 @@ define([
                 if ( !this.leftMenu.panelHistory.isVisible() )
                     this.clickMenuFileItem(null, 'history');
             }, this));
+            Common.NotificationCenter.on('protect:doclock', _.bind(this.onChangeProtectDocument, this));
         },
 
         onLaunch: function() {
             this.leftMenu = this.createView('LeftMenu').render();
             this.leftMenu.btnSearchBar.on('toggle', _.bind(this.onMenuSearchBar, this));
-
+            this._state = {viewmode: false};
             Common.util.Shortcuts.delegateShortcuts({
                 shortcuts: {
                     'command+shift+s,ctrl+shift+s': _.bind(this.onShortcut, this, 'save'),
@@ -581,8 +582,16 @@ define([
         },
 
         setPreviewMode: function(mode) {
-            if (this.viewmode === mode) return;
-            this.viewmode = mode;
+            this._state.viewmode = mode;
+            this.updatePreviewMode();
+        },
+
+        updatePreviewMode: function() {
+            var lockMode = this._state.docProtection ? this._state.docProtection.lockMode : undefined;
+            lockMode = (lockMode===Asc.c_oAscProtection.View || lockMode===Asc.c_oAscProtection.Forms);
+            var viewmode = this._state.viewmode || lockMode;
+            if (this.viewmode === viewmode) return;
+            this.viewmode = viewmode;
 
             this.leftMenu.panelSearch && this.leftMenu.panelSearch.setSearchMode(this.viewmode ? 'no-replace' : 'search');
         },
@@ -887,6 +896,17 @@ define([
             return this.leftMenu && this.leftMenu.panelComments && this.leftMenu.panelComments.isVisible();
         },
 
+        onChangeProtectDocument: function(props) {
+            if (!props) {
+                var docprotect = this.getApplication().getController('DocProtection');
+                props = docprotect ? docprotect.getDocProps() : null;
+            }
+            if (props) {
+                this._state.docProtection = props;
+                this.updatePreviewMode();
+            }
+        },
+
         textNoTextFound         : 'Text not found',
         newDocumentTitle        : 'Unnamed document',
         requestEditRightsText   : 'Requesting editing rights...',