diff --git a/apps/common/main/lib/view/OpenDialog.js b/apps/common/main/lib/view/OpenDialog.js
index 96abab1c3..a6b01b5ee 100644
--- a/apps/common/main/lib/view/OpenDialog.js
+++ b/apps/common/main/lib/view/OpenDialog.js
@@ -55,8 +55,8 @@ define([
 
             _.extend(_options,  {
                 closable        : false,
-                width           : (options.preview) ? 414 : 262,
-                height          : (options.preview) ? 291 : ((options.type == Asc.c_oAscAdvancedOptionsID.CSV) ? 205 : 155),
+                width           : (options.preview) ? 414 : ((options.type == Asc.c_oAscAdvancedOptionsID.DRM) ? 370 : 262),
+                height          : (options.preview) ? 277 : ((options.type == Asc.c_oAscAdvancedOptionsID.CSV) ? 190 : 187),
                 header          : true,
                 preview         : options.preview,
                 cls             : 'open-dlg',
@@ -70,8 +70,12 @@ define([
                 '<div class="box" style="height:' + (_options.height - 85) + 'px;">',
                     '<div class="content-panel" >',
                     '<% if (type == Asc.c_oAscAdvancedOptionsID.DRM) { %>',
-                        '<label class="header">' + t.txtPassword + '</label>',
-                        '<div id="id-password-txt" style="margin-bottom:15px;"></div>',
+                        '<div>',
+                            '<div class="icon img-commonctrl warn"/>',
+                            '<div style="padding-left: 50px;"><div style="font-size: 12px;">' + t.txtProtected+ '</div>',
+                                '<label class="header" style="margin-top: 15px;">' + t.txtPassword + '</label>',
+                                '<div id="id-password-txt" style="width: 240px;"></div></div>',
+                        '</div>',
                     '<% } else { %>',
                         '<div style="display: inline-block; margin-bottom:15px;margin-right: 10px;">',
                             '<label class="header">' + t.txtEncoding + '</label>',
@@ -105,11 +109,10 @@ define([
                     '<% } %>',
                     '</div>',
                 '</div>',
-                '<div class="separator horizontal"/>',
                 '<div class="footer center">',
-                    '<button class="btn normal dlg-btn primary" result="ok" style="margin-right:10px;">' + t.okButtonText + '</button>',
+                    '<button class="btn normal dlg-btn primary" result="ok">' + t.okButtonText + '</button>',
                     '<% if (closable) { %>',
-                    '<button class="btn normal dlg-btn" result="cancel">' + t.closeButtonText + '</button>',
+                    '<button class="btn normal dlg-btn" result="cancel" style="margin-left:10px;">' + t.closeButtonText + '</button>',
                     '<% } %>',
                 '</div>'
             ].join('');
@@ -527,7 +530,8 @@ define([
         txtPreview: 'Preview',
         txtComma: 'Comma',
         txtColon: 'Colon',
-        txtSemicolon: 'Semicolon'
+        txtSemicolon: 'Semicolon',
+        txtProtected: 'Once you enter the password and open the file, the current password to the file will be reset.'
 
     }, Common.Views.OpenDialog || {}));
 });
\ No newline at end of file
diff --git a/apps/common/main/resources/less/opendialog.less b/apps/common/main/resources/less/opendialog.less
index 762e50ef6..19e2a3d75 100644
--- a/apps/common/main/resources/less/opendialog.less
+++ b/apps/common/main/resources/less/opendialog.less
@@ -15,7 +15,7 @@
 
     .content-panel {
       vertical-align: top;
-      padding: 15px;
+      padding: 15px 15px 0;
       width: 100%;
 
       .inner-content {
@@ -74,6 +74,17 @@
           padding-bottom: 8px;
         }
       }
+
+      .icon {
+        float: left;
+        width: 35px;
+        height: 35px;
+
+        &.warn {
+          height: 32px;
+          background-position: @alerts-offset-x @alerts-offset-y - 105px;
+        }
+      }
     }
   }
   .footer {
diff --git a/apps/documenteditor/main/locale/en.json b/apps/documenteditor/main/locale/en.json
index 6034057be..90cf32c46 100644
--- a/apps/documenteditor/main/locale/en.json
+++ b/apps/documenteditor/main/locale/en.json
@@ -191,6 +191,7 @@
   "Common.Views.OpenDialog.txtPreview": "Preview",
   "Common.Views.OpenDialog.txtTitle": "Choose %1 options",
   "Common.Views.OpenDialog.txtTitleProtected": "Protected File",
+  "Common.Views.OpenDialog.txtProtected": "Once you enter the password and open the file, the current password to the file will be reset.",
   "Common.Views.PasswordDialog.cancelButtonText": "Cancel",
   "Common.Views.PasswordDialog.okButtonText": "OK",
   "Common.Views.PasswordDialog.txtDescription": "Set a password to protect this document",
diff --git a/apps/presentationeditor/main/locale/en.json b/apps/presentationeditor/main/locale/en.json
index ecfcf89e7..05d9177de 100644
--- a/apps/presentationeditor/main/locale/en.json
+++ b/apps/presentationeditor/main/locale/en.json
@@ -123,6 +123,7 @@
   "Common.Views.OpenDialog.txtPassword": "Password",
   "Common.Views.OpenDialog.txtTitle": "Choose %1 options",
   "Common.Views.OpenDialog.txtTitleProtected": "Protected File",
+  "Common.Views.OpenDialog.txtProtected": "Once you enter the password and open the file, the current password to the file will be reset.",
   "Common.Views.PasswordDialog.cancelButtonText": "Cancel",
   "Common.Views.PasswordDialog.okButtonText": "OK",
   "Common.Views.PasswordDialog.txtDescription": "Set a password to protect this document",
diff --git a/apps/spreadsheeteditor/main/locale/en.json b/apps/spreadsheeteditor/main/locale/en.json
index e2692d855..73354488f 100644
--- a/apps/spreadsheeteditor/main/locale/en.json
+++ b/apps/spreadsheeteditor/main/locale/en.json
@@ -113,6 +113,7 @@
   "Common.Views.OpenDialog.txtTab": "Tab",
   "Common.Views.OpenDialog.txtTitle": "Choose %1 options",
   "Common.Views.OpenDialog.txtTitleProtected": "Protected File",
+  "Common.Views.OpenDialog.txtProtected": "Once you enter the password and open the file, the current password to the file will be reset.",
   "Common.Views.PasswordDialog.cancelButtonText": "Cancel",
   "Common.Views.PasswordDialog.okButtonText": "OK",
   "Common.Views.PasswordDialog.txtDescription": "Set a password to protect this document",