diff --git a/apps/api/wopi/editor-wopi.ejs b/apps/api/wopi/editor-wopi.ejs
index ab427dc66a..fc342779bf 100644
--- a/apps/api/wopi/editor-wopi.ejs
+++ b/apps/api/wopi/editor-wopi.ejs
@@ -219,6 +219,10 @@ div {
                 window.open(fileInfo.HostEditUrl, "_blank");
         };
 
+        var onRequestSaveAs = function (event) {
+            //SaveAs work via PutRelativeFile server-server request
+        };
+
         var onRequestSharingSettings = function (event) {
             if (fileInfo.FileSharingPostMessage)
                 _postMessage('UI_Sharing', {});
@@ -324,7 +328,8 @@ div {
 				"events": {
                     "onAppReady": onAppReady,
                     "onDocumentStateChange": fileInfo.EditNotificationPostMessage ? onDocumentStateChange : undefined,
-                    'onRequestEditRights': fileInfo.EditModePostMessage || (fileInfo.HostEditUrl && !fileInfo.UserCanNotWriteRelative) ? onRequestEditRights : undefined,
+                    'onRequestEditRights': fileInfo.EditModePostMessage || fileInfo.HostEditUrl ? onRequestEditRights : undefined,
+                    'onRequestSaveAs': fileInfo.SupportsUpdate && !fileInfo.UserCanNotWriteRelative ? onRequestSaveAs : undefined,
                     "onError": onError,
                     "onRequestClose": fileInfo.ClosePostMessage || fileInfo.CloseUrl ? onRequestClose : undefined,
                     "onRequestRename": fileInfo.SupportsRename && fileInfo.UserCanRename ? onRequestRename : undefined,
diff --git a/apps/documenteditor/embed/js/ApplicationController.js b/apps/documenteditor/embed/js/ApplicationController.js
index 71c4b5eeb2..6e29108ed2 100644
--- a/apps/documenteditor/embed/js/ApplicationController.js
+++ b/apps/documenteditor/embed/js/ApplicationController.js
@@ -869,7 +869,11 @@ DE.ApplicationController = new(function(){
             Common.Gateway.reportError(Asc.c_oAscError.ID.AccessDeny, me.errorAccessDeny);
             return;
         }
-        if (api) api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.DOCX, true));
+        if (api) {
+            var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.DOCX, true);
+            options.asc_setIsSaveAs(true);
+            api.asc_DownloadAs(options);
+        }
     }
 
     function onRunAutostartMacroses() {
diff --git a/apps/documenteditor/main/app/controller/FormsTab.js b/apps/documenteditor/main/app/controller/FormsTab.js
index f7f5850134..87a4844dd9 100644
--- a/apps/documenteditor/main/app/controller/FormsTab.js
+++ b/apps/documenteditor/main/app/controller/FormsTab.js
@@ -354,7 +354,9 @@ define([
             this.closeHelpTip('save', true);
             this.showRolesList(function() {
                 this.isFromFormSaveAs = this.appConfig.canRequestSaveAs || !!this.appConfig.saveAsUrl;
-                this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, this.isFromFormSaveAs));
+                var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, this.isFromFormSaveAs);
+                options.asc_setIsSaveAs(this.isFromFormSaveAs);
+                this.api.asc_DownloadAs(options);
             });
         },
 
diff --git a/apps/documenteditor/main/app/controller/LeftMenu.js b/apps/documenteditor/main/app/controller/LeftMenu.js
index 3da81f3ced..61cf5dbb97 100644
--- a/apps/documenteditor/main/app/controller/LeftMenu.js
+++ b/apps/documenteditor/main/app/controller/LeftMenu.js
@@ -315,9 +315,10 @@ define([
 
         _saveAsFormat: function(menu, format, ext, textParams) {
             var needDownload = !!ext;
+            var options = new Asc.asc_CDownloadOptions(format, needDownload);
+            options.asc_setIsSaveAs(needDownload);
 
             if (menu) {
-                var options = new Asc.asc_CDownloadOptions(format, needDownload);
                 options.asc_setTextParams(textParams);
                 if (format == Asc.c_oAscFileType.TXT || format == Asc.c_oAscFileType.RTF) {
                     Common.UI.warning({
@@ -367,7 +368,7 @@ define([
                 }
             } else {
                 this.isFromFileDownloadAs = needDownload;
-                this.api.asc_DownloadOrigin(needDownload);
+                this.api.asc_DownloadOrigin(options);
             }
         },
 
diff --git a/apps/documenteditor/main/app/controller/Main.js b/apps/documenteditor/main/app/controller/Main.js
index 516ccabccf..445639e526 100644
--- a/apps/documenteditor/main/app/controller/Main.js
+++ b/apps/documenteditor/main/app/controller/Main.js
@@ -629,7 +629,10 @@ define([
                 var type = /^(?:(pdf|djvu|xps|oxps))$/.exec(this.document.fileType);
                 if (type && typeof type[1] === 'string') {
                     if (!(format && (typeof format == 'string')) || type[1]===format.toLowerCase()) {
-                        this.api.asc_DownloadOrigin(true);
+                        var options = new Asc.asc_CDownloadOptions();
+                        options.asc_setIsDownloadEvent(true);
+                        options.asc_setIsSaveAs(true);
+                        this.api.asc_DownloadOrigin(options);
                         return;
                     }
                     if (/^xps|oxps$/.test(this.document.fileType))
@@ -647,12 +650,13 @@ define([
                 }
                 if ( !_format || _supported.indexOf(_format) < 0 )
                     _format = _defaultFormat;
+                var options = new Asc.asc_CDownloadOptions(_format, true);
+                options.asc_setIsSaveAs(true);
                 if (_format) {
-                    var options = new Asc.asc_CDownloadOptions(_format, true);
                     textParams && options.asc_setTextParams(textParams);
                     this.api.asc_DownloadAs(options);
                 } else {
-                    this.api.asc_DownloadOrigin(true);
+                    this.api.asc_DownloadOrigin(options);
                 }
             },
 
diff --git a/apps/documenteditor/main/app/controller/Toolbar.js b/apps/documenteditor/main/app/controller/Toolbar.js
index 40e2e1dcb9..0c931ad6d2 100644
--- a/apps/documenteditor/main/app/controller/Toolbar.js
+++ b/apps/documenteditor/main/app/controller/Toolbar.js
@@ -3552,7 +3552,9 @@ define([
                     callback: function(btn){
                         if (btn==='ok') {
                             me.isFromFormSaveAs = config.canRequestSaveAs || !!config.saveAsUrl;
-                            me.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, me.isFromFormSaveAs));
+                            var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, me.isFromFormSaveAs);
+                            options.asc_setIsSaveAs(me.isFromFormSaveAs);
+                            me.api.asc_DownloadAs(options);
                         }
                         Common.NotificationCenter.trigger('edit:complete');
                     }
diff --git a/apps/documenteditor/mobile/src/controller/Main.jsx b/apps/documenteditor/mobile/src/controller/Main.jsx
index e49695c8e8..2f62f32683 100644
--- a/apps/documenteditor/mobile/src/controller/Main.jsx
+++ b/apps/documenteditor/mobile/src/controller/Main.jsx
@@ -1106,10 +1106,12 @@ class MainController extends Component {
         this._state.isFromGatewayDownloadAs = true;
         const type = /^(?:(pdf|djvu|xps|oxps))$/.exec(this.document.fileType);
 
+        let options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.DOCX, true);
+        options.asc_setIsSaveAs(true);
         if (type && typeof type[1] === 'string') {
-            this.api.asc_DownloadOrigin(true);
+            this.api.asc_DownloadOrigin(options);
         } else {
-            this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.DOCX, true));
+            this.api.asc_DownloadAs(options);
         }
     }
 
diff --git a/apps/documenteditor/mobile/src/controller/Toolbar.jsx b/apps/documenteditor/mobile/src/controller/Toolbar.jsx
index 6eb2ac8380..d9d042ad33 100644
--- a/apps/documenteditor/mobile/src/controller/Toolbar.jsx
+++ b/apps/documenteditor/mobile/src/controller/Toolbar.jsx
@@ -367,7 +367,9 @@ const ToolbarController = inject('storeAppOptions', 'users', 'storeReview', 'sto
             api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF));
         } else {
             const isFromBtnDownload = appOptions.canRequestSaveAs || !!appOptions.saveAsUrl;
-            api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, isFromBtnDownload));
+            let options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, isFromBtnDownload);
+            options.asc_setIsSaveAs(isFromBtnDownload);
+            api.asc_DownloadAs(options);
         }
     }
 
diff --git a/apps/documenteditor/mobile/src/controller/settings/Settings.jsx b/apps/documenteditor/mobile/src/controller/settings/Settings.jsx
index 71264cb12e..cfef236370 100644
--- a/apps/documenteditor/mobile/src/controller/settings/Settings.jsx
+++ b/apps/documenteditor/mobile/src/controller/settings/Settings.jsx
@@ -198,7 +198,9 @@ const SettingsController = props => {
             api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF));
         } else {
             const isFromBtnDownload = appOptions.canRequestSaveAs || !!appOptions.saveAsUrl;
-            api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, isFromBtnDownload));
+            let options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, isFromBtnDownload);
+            options.asc_setIsSaveAs(isFromBtnDownload);
+            api.asc_DownloadAs(options);
         }
     }
 
diff --git a/apps/pdfeditor/main/app/controller/LeftMenu.js b/apps/pdfeditor/main/app/controller/LeftMenu.js
index f0a727ae4e..2336f31944 100644
--- a/apps/pdfeditor/main/app/controller/LeftMenu.js
+++ b/apps/pdfeditor/main/app/controller/LeftMenu.js
@@ -271,9 +271,10 @@ define([
 
         _saveAsFormat: function(menu, format, ext, textParams) {
             var needDownload = !!ext;
+            var options = new Asc.asc_CDownloadOptions(format, needDownload);
+            options.asc_setIsSaveAs(needDownload);
 
             if (menu) {
-                var options = new Asc.asc_CDownloadOptions(format, needDownload);
                 options.asc_setTextParams(textParams);
                 if (format == Asc.c_oAscFileType.TXT || format == Asc.c_oAscFileType.RTF) {
                     Common.UI.warning({
@@ -322,7 +323,7 @@ define([
                 }
             } else {
                 this.isFromFileDownloadAs = needDownload;
-                this.api.asc_DownloadOrigin(needDownload);
+                this.api.asc_DownloadOrigin(options);
             }
         },
 
diff --git a/apps/pdfeditor/main/app/controller/Main.js b/apps/pdfeditor/main/app/controller/Main.js
index affc32b20e..b6e1b39695 100644
--- a/apps/pdfeditor/main/app/controller/Main.js
+++ b/apps/pdfeditor/main/app/controller/Main.js
@@ -553,7 +553,10 @@ define([
                     ];
                 var type = /^(?:(pdf|djvu|xps|oxps))$/.exec(this.document.fileType);
                 if (!(format && (typeof format == 'string')) || type[1]===format.toLowerCase()) {
-                    this.api.asc_DownloadOrigin(true);
+                    var options = new Asc.asc_CDownloadOptions();
+                    options.asc_setIsDownloadEvent(true);
+                    options.asc_setIsSaveAs(true);
+                    this.api.asc_DownloadOrigin(options);
                     return;
                 }
                 if (/^xps|oxps$/.test(this.document.fileType))
@@ -563,12 +566,13 @@ define([
                 }
                 if ( !_format || _supported.indexOf(_format) < 0 )
                     _format = _defaultFormat;
+                var options = new Asc.asc_CDownloadOptions(_format, true);
+                options.asc_setIsSaveAs(true);
                 if (_format) {
-                    var options = new Asc.asc_CDownloadOptions(_format, true);
                     textParams && options.asc_setTextParams(textParams);
                     this.api.asc_DownloadAs(options);
                 } else {
-                    this.api.asc_DownloadOrigin(true);
+                    this.api.asc_DownloadOrigin(options);
                 }
             },
 
diff --git a/apps/pdfeditor/main/app/controller/Toolbar.js b/apps/pdfeditor/main/app/controller/Toolbar.js
index 2ae5ea4a29..66ae82eec1 100644
--- a/apps/pdfeditor/main/app/controller/Toolbar.js
+++ b/apps/pdfeditor/main/app/controller/Toolbar.js
@@ -424,7 +424,10 @@ define([
                             me.api.asc_DownloadAs();
                         else if (btn==='copy' || btn==='download') {
                             me._state.isFromToolbarDownloadAs = (btn==='copy');
-                            me.api.asc_DownloadOrigin(btn==='copy');
+                            var options = new Asc.asc_CDownloadOptions();
+                            options.asc_setIsDownloadEvent(me._state.isFromToolbarDownloadAs);
+                            options.asc_setIsSaveAs(me._state.isFromToolbarDownloadAs);
+                            me.api.asc_DownloadOrigin(options);
                         }
                         Common.NotificationCenter.trigger('edit:complete', toolbar);
                     }
@@ -741,7 +744,9 @@ define([
                     this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF));
                 else {
                     this._state.isFromToolbarDownloadAs = this.mode.canRequestSaveAs || !!this.mode.saveAsUrl;
-                    this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, this._state.isFromToolbarDownloadAs));
+                    var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PDF, this._state.isFromToolbarDownloadAs);
+                    options.asc_setIsSaveAs(this._state.isFromToolbarDownloadAs);
+                    this.api.asc_DownloadAs(options);
                 }
             }
         },
diff --git a/apps/presentationeditor/embed/js/ApplicationController.js b/apps/presentationeditor/embed/js/ApplicationController.js
index 2f8a44153b..08afd5d0bf 100644
--- a/apps/presentationeditor/embed/js/ApplicationController.js
+++ b/apps/presentationeditor/embed/js/ApplicationController.js
@@ -721,7 +721,11 @@ PE.ApplicationController = new(function(){
             Common.Gateway.reportError(Asc.c_oAscError.ID.AccessDeny, me.errorAccessDeny);
             return;
         }
-        if (api) api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PPTX, true));
+        if (api) {
+            var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PPTX, true);
+            options.asc_setIsSaveAs(true);
+            api.asc_DownloadAs(options);
+        }
     }
 
     function onRunAutostartMacroses() {
diff --git a/apps/presentationeditor/main/app/controller/LeftMenu.js b/apps/presentationeditor/main/app/controller/LeftMenu.js
index 00e464aacd..1e07462bed 100644
--- a/apps/presentationeditor/main/app/controller/LeftMenu.js
+++ b/apps/presentationeditor/main/app/controller/LeftMenu.js
@@ -292,7 +292,10 @@ define([
 
         clickSaveCopyAsFormat: function(menu, format, ext) {
             this.isFromFileDownloadAs = ext;
-            this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(format, true));
+            var options = new Asc.asc_CDownloadOptions(format, true);
+            options.asc_setIsSaveAs(true);
+            this.api.asc_DownloadAs(options);
+
             menu.hide();
         },
 
diff --git a/apps/presentationeditor/main/app/controller/Main.js b/apps/presentationeditor/main/app/controller/Main.js
index 26a14195f5..1edf480844 100644
--- a/apps/presentationeditor/main/app/controller/Main.js
+++ b/apps/presentationeditor/main/app/controller/Main.js
@@ -555,7 +555,9 @@ define([
 
                 if ( !_format || _supported.indexOf(_format) < 0 )
                     _format = Asc.c_oAscFileType.PPTX;
-                this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(_format, true));
+                var options = new Asc.asc_CDownloadOptions(_format, true);
+                options.asc_setIsSaveAs(true);
+                this.api.asc_DownloadAs(options);
             },
 
             onProcessMouse: function(data) {
diff --git a/apps/presentationeditor/mobile/src/controller/Main.jsx b/apps/presentationeditor/mobile/src/controller/Main.jsx
index 3bd8397618..699f13223e 100644
--- a/apps/presentationeditor/mobile/src/controller/Main.jsx
+++ b/apps/presentationeditor/mobile/src/controller/Main.jsx
@@ -961,7 +961,9 @@ class MainController extends Component {
             return;
         }
         this._state.isFromGatewayDownloadAs = true;
-        this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PPTX, true));
+        var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.PPTX, true);
+        options.asc_setIsSaveAs(true);
+        this.api.asc_DownloadAs(options);
     }
 
     onRequestClose () {
diff --git a/apps/spreadsheeteditor/embed/js/ApplicationController.js b/apps/spreadsheeteditor/embed/js/ApplicationController.js
index 8590868ee9..ed00a3dc40 100644
--- a/apps/spreadsheeteditor/embed/js/ApplicationController.js
+++ b/apps/spreadsheeteditor/embed/js/ApplicationController.js
@@ -636,7 +636,11 @@ SSE.ApplicationController = new(function(){
             Common.Gateway.reportError(Asc.c_oAscError.ID.AccessDeny, me.errorAccessDeny);
             return;
         }
-        api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.XLSX, true));
+        if (api) {
+            var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.XLSX, true);
+            options.asc_setIsSaveAs(true);
+            api.asc_DownloadAs(options);
+        }
     }
 
     function onApiMouseMove(array) {
diff --git a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
index d27609b2d9..9066d45c7d 100644
--- a/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
+++ b/apps/spreadsheeteditor/main/app/controller/LeftMenu.js
@@ -382,7 +382,9 @@ define([
                             if (btn == 'ok') {
                                 me.showLostDataWarning(function () {
                                     me.isFromFileDownloadAs = ext;
-                                    Common.NotificationCenter.trigger('download:advanced', Asc.c_oAscAdvancedOptionsID.CSV, me.api.asc_getAdvancedOptions(), 2, new Asc.asc_CDownloadOptions(format, true));
+                                    var options = new Asc.asc_CDownloadOptions(format, true);
+                                    options.asc_setIsSaveAs(true);
+                                    Common.NotificationCenter.trigger('download:advanced', Asc.c_oAscAdvancedOptionsID.CSV, me.api.asc_getAdvancedOptions(), 2, options);
                                     menu.hide();
                                 });
                             }
@@ -391,7 +393,9 @@ define([
                 } else
                     me.showLostDataWarning(function () {
                         me.isFromFileDownloadAs = ext;
-                        Common.NotificationCenter.trigger('download:advanced', Asc.c_oAscAdvancedOptionsID.CSV, me.api.asc_getAdvancedOptions(), 2, new Asc.asc_CDownloadOptions(format, true));
+                        var options = new Asc.asc_CDownloadOptions(format, true);
+                        options.asc_setIsSaveAs(true);
+                        Common.NotificationCenter.trigger('download:advanced', Asc.c_oAscAdvancedOptionsID.CSV, me.api.asc_getAdvancedOptions(), 2, options);
                         menu.hide();
                     });
             } else if (format == Asc.c_oAscFileType.PDF || format == Asc.c_oAscFileType.PDFA) {
@@ -400,7 +404,9 @@ define([
                 Common.NotificationCenter.trigger('download:settings', this.leftMenu, format, true);
             } else {
                 this.isFromFileDownloadAs = ext;
-                this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(format, true));
+                var options = new Asc.asc_CDownloadOptions(format, true);
+                options.asc_setIsSaveAs(true);
+                this.api.asc_DownloadAs(options);
                 menu.hide();
             }
         },
diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index 2399574779..0cd027529c 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -642,8 +642,11 @@ define([
                     _format = Asc.c_oAscFileType.XLSX;
                 if (_format == Asc.c_oAscFileType.PDF || _format == Asc.c_oAscFileType.PDFA)
                     Common.NotificationCenter.trigger('download:settings', this, _format, true);
-                else
-                    this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(_format, true));
+                else {
+                    var options = new Asc.asc_CDownloadOptions(_format, true);
+                    options.asc_setIsSaveAs(true);
+                    this.api.asc_DownloadAs(options);
+                }
             },
 
             onProcessMouse: function(data) {
diff --git a/apps/spreadsheeteditor/mobile/src/controller/Main.jsx b/apps/spreadsheeteditor/mobile/src/controller/Main.jsx
index 2844029e93..9ca01233ad 100644
--- a/apps/spreadsheeteditor/mobile/src/controller/Main.jsx
+++ b/apps/spreadsheeteditor/mobile/src/controller/Main.jsx
@@ -1149,7 +1149,9 @@ class MainController extends Component {
             return;
         }
         this._state.isFromGatewayDownloadAs = true;
-        this.api.asc_DownloadAs(new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.XLSX, true));
+        var options = new Asc.asc_CDownloadOptions(Asc.c_oAscFileType.XLSX, true);
+        options.asc_setIsSaveAs(true);
+        this.api.asc_DownloadAs(options);
     }
 
     onRequestClose () {