diff --git a/apps/api/documents/api.js b/apps/api/documents/api.js
index e689381f5c..eed2312ba8 100644
--- a/apps/api/documents/api.js
+++ b/apps/api/documents/api.js
@@ -477,7 +477,7 @@
                     }
                 }
 
-                var type = /^(?:(pdf|djvu|xps|oxps))$/.exec(_config.document.fileType);
+                var type = /^(?:(djvu|xps|oxps))$/.exec(_config.document.fileType);
                 if (type && typeof type[1] === 'string') {
                     _config.editorConfig.canUseHistory = false;
                 }
@@ -960,25 +960,29 @@
                 'word': 'documenteditor',
                 'cell': 'spreadsheeteditor',
                 'slide': 'presentationeditor',
-                'pdf': 'pdfeditor'
+                'pdf': 'pdfeditor',
+                'checker': config.document && config.document.isForm ? 'documenteditor' :
+                           config.document && config.document.isForm===false ? 'pdfeditor' : 'common'
             },
             appType = 'word';
 
         if (typeof config.documentType === 'string') {
             appType = config.documentType.toLowerCase();
             if (config.type !== 'mobile' && config.type !== 'embedded' && !!config.document && typeof config.document.fileType === 'string') {
-                var type = /^(?:(pdf|djvu|xps|oxps))$/.exec(config.document.fileType);
-                if (type && typeof type[1] === 'string')
+                var type = /^(?:(pdf)|(djvu|xps|oxps))$/.exec(config.document.fileType);
+                if (type && typeof type[2] === 'string')
                     appType = 'pdf';
+                if (type && typeof type[1] === 'string')
+                    appType = 'checker';
             }
-        } else
-        if (!!config.document && typeof config.document.fileType === 'string') {
-            var type = /^(?:(xls|xlsx|ods|csv|xlst|xlsy|gsheet|xlsm|xlt|xltm|xltx|fods|ots|xlsb)|(pps|ppsx|ppt|pptx|odp|pptt|ppty|gslides|pot|potm|potx|ppsm|pptm|fodp|otp)|(pdf|djvu|xps|oxps))$/
+        } else if (!!config.document && typeof config.document.fileType === 'string') {
+            var type = /^(?:(xls|xlsx|ods|csv|xlst|xlsy|gsheet|xlsm|xlt|xltm|xltx|fods|ots|xlsb)|(pps|ppsx|ppt|pptx|odp|pptt|ppty|gslides|pot|potm|potx|ppsm|pptm|fodp|otp)|(pdf)|(djvu|xps|oxps))$/
                             .exec(config.document.fileType);
             if (type) {
                 if (typeof type[1] === 'string') appType = 'cell'; else
                 if (typeof type[2] === 'string') appType = 'slide'; else
-                if (typeof type[3] === 'string' && config.type !== 'mobile' && config.type !== 'embedded') appType = 'pdf';
+                if (typeof type[4] === 'string' && config.type !== 'mobile' && config.type !== 'embedded') appType = 'pdf'; else
+                if (typeof type[3] === 'string' && config.type !== 'mobile' && config.type !== 'embedded') appType = 'checker';
             }
         }
         if (appType === 'pdf' && (config.type === 'mobile' ||  config.type === 'embedded')) {
@@ -994,7 +998,7 @@
         var index = "/index.html";
         if (config.editorConfig && path_type!=="forms") {
             var customization = config.editorConfig.customization;
-            if ( typeof(customization) == 'object' && ( customization.toolbarNoTabs ||
+            if ( appType!=='checker' && typeof(customization) == 'object' && ( customization.toolbarNoTabs ||
                                                         (config.editorConfig.targetApp!=='desktop') && (customization.loaderName || customization.loaderLogo))) {
                 index = "/index_loader.html";
             } else if (config.editorConfig.mode === 'editdiagram' || config.editorConfig.mode === 'editmerge' || config.editorConfig.mode === 'editole')
@@ -1064,6 +1068,12 @@
         if (config.document && config.document.fileType)
             params += "&fileType=" + config.document.fileType;
 
+        if (config.editorConfig) {
+            var customization = config.editorConfig.customization;
+            if ( customization && typeof(customization) == 'object' && ( customization.toolbarNoTabs || (config.editorConfig.targetApp!=='desktop') && (customization.loaderName || customization.loaderLogo))) {
+                params += "&indexPostfix=_loader";
+            }
+        }
         return params;
     }
 
diff --git a/apps/common/main/index.html b/apps/common/main/index.html
new file mode 100644
index 0000000000..7045ae5618
--- /dev/null
+++ b/apps/common/main/index.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+      <title>ONLYOFFICE Documents</title>
+      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+      <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=IE8">
+      <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no">
+      <link rel="icon" href="resources/img/favicon.ico" type="image/x-icon">
+
+      <style type="text/css">
+          .loadmask {
+              left: 0;
+              top: 0;
+              position: absolute;
+              height: 100%;
+              width: 100%;
+              overflow: hidden;
+              border: none;
+              background: #e2e2e2;
+              background: var(--canvas-background, #e2e2e2);
+              z-index: 1002;
+          }
+
+          .theme-dark .loadmask, .theme-type-dark .loadmask {
+              background: #555;
+          }
+      </style>
+      <script>
+          function getUrlParams() {
+              var e,
+                  a = /\+/g,  // Regex for replacing addition symbol with a space
+                  r = /([^&=]+)=?([^&]*)/g,
+                  d = function (s) { return decodeURIComponent(s.replace(a, " ")); },
+                  q = window.location.search.substring(1),
+                  urlParams = {};
+
+              while (e = r.exec(q))
+                  urlParams[d(e[1])] = d(e[2]);
+
+              return urlParams;
+          }
+
+          var params = getUrlParams(),
+              postfix = params["indexPostfix"] || '';
+          window.frameEditorId = params["frameEditorId"];
+          window.parentOrigin = params["parentOrigin"];
+      </script>
+      <script src="lib/util/themeinit.js"></script>
+  </head>
+  <body>
+      <script src="lib/util/htmlutils.js"></script>
+      <script type="text/javascript" src="../checkExtendedPDF.js"></script>
+      <div id="loading-mask" class="loadmask"></div>
+      <script>
+          listenApiMsg(function (isform) {
+              var match = window.location.href.match(/(.*)common\/main\/index.html/i);
+              match && window.location.replace(match[1] + (!!isform ? 'documenteditor' : 'pdfeditor') + '/main/index' + postfix + '.html' + window.location.search + ("&isForm=" + !!isform));
+          });
+      </script>
+  </body>
+</html>
diff --git a/apps/common/main/index.html.deploy b/apps/common/main/index.html.deploy
new file mode 100644
index 0000000000..a0d1523a73
--- /dev/null
+++ b/apps/common/main/index.html.deploy
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+      <title>ONLYOFFICE Documents</title>
+      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+      <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=IE8">
+      <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no">
+      <link rel="icon" href="resources/img/favicon.ico" type="image/x-icon">
+
+      <style type="text/css">
+          .loadmask {
+              left: 0;
+              top: 0;
+              position: absolute;
+              height: 100%;
+              width: 100%;
+              overflow: hidden;
+              border: none;
+              background: #e2e2e2;
+              background: var(--canvas-background, #e2e2e2);
+              z-index: 1002;
+          }
+
+          .theme-dark .loadmask, .theme-type-dark .loadmask {
+              background: #555;
+          }
+      </style>
+      <script>
+          function getUrlParams() {
+              var e,
+                  a = /\+/g,  // Regex for replacing addition symbol with a space
+                  r = /([^&=]+)=?([^&]*)/g,
+                  d = function (s) { return decodeURIComponent(s.replace(a, " ")); },
+                  q = window.location.search.substring(1),
+                  urlParams = {};
+
+              while (e = r.exec(q))
+                  urlParams[d(e[1])] = d(e[2]);
+
+              return urlParams;
+          }
+
+          var params = getUrlParams(),
+              postfix = params["indexPostfix"] || '';
+          window.frameEditorId = params["frameEditorId"];
+          window.parentOrigin = params["parentOrigin"];
+      </script>
+      <script src="../../../../../apps/common/main/lib/util/themeinit.js?__inline=true"></script>
+  </head>
+  <body>
+      <script src="../../../../../apps/common/main/lib/util/htmlutils.js?__inline=true"></script>
+      <script src="../../../../../apps/common/checkExtendedPDF.js?__inline=true"></script>
+      <div id="loading-mask" class="loadmask"></div>
+      <script>
+          listenApiMsg(function (isform) {
+              var match = window.location.href.match(/(.*)common\/main\/index.html/i);
+              match && window.location.replace(match[1] + (!!isform ? 'documenteditor' : 'pdfeditor') + '/main/index' + postfix + '.html' + window.location.search + ("&isForm=" + !!isform));
+          });
+      </script>
+  </body>
+</html>
diff --git a/apps/common/main/resources/less/asc-mixins.less b/apps/common/main/resources/less/asc-mixins.less
index cedc33457b..07d7a9a666 100644
--- a/apps/common/main/resources/less/asc-mixins.less
+++ b/apps/common/main/resources/less/asc-mixins.less
@@ -844,3 +844,23 @@
 //        }
 //    }
 //}
+
+.header-background-color {
+    background-color: @header-background-color-ie;
+    background-color: @header-background-color;
+
+    .pdf-form & {
+        background-color: @header-background-color-pdf-ie;
+        background-color: @header-background-color-pdf;
+    }
+}
+
+.header-border-color {
+    border-color: @header-background-color-ie !important;
+    border-color: @header-background-color !important;
+
+    .pdf-form & {
+        border-color: @header-background-color-pdf-ie !important;
+        border-color: @header-background-color-pdf !important;
+    }
+}
diff --git a/apps/common/main/resources/less/calendar.less b/apps/common/main/resources/less/calendar.less
index 97fe8653b2..57e3b47873 100644
--- a/apps/common/main/resources/less/calendar.less
+++ b/apps/common/main/resources/less/calendar.less
@@ -1,6 +1,3 @@
-@calendar-bg-color: @header-background-color-ie;
-@calendar-bg-color: @header-background-color;
-
 .calendar-window {
   border-radius: 0;
   box-shadow: none;
diff --git a/apps/common/main/resources/less/header.less b/apps/common/main/resources/less/header.less
index fd5e028c57..078a0f7035 100644
--- a/apps/common/main/resources/less/header.less
+++ b/apps/common/main/resources/less/header.less
@@ -403,6 +403,10 @@
         background-color: @icon-toolbar-header;
         color: @toolbar-header-text-on-background-ie;
         color: @toolbar-header-text-on-background;
+        .pdf-form & {
+            color: @toolbar-header-text-on-background-pdf-ie;
+            color: @toolbar-header-text-on-background-pdf;
+        }
         vertical-align: middle;
         background-size: cover;
         background-position: center;
@@ -517,8 +521,7 @@
 }
 
 #box-document-title {
-    background-color: @header-background-color-ie;
-    background-color: @header-background-color;
+    .header-background-color();
     display: flex;
     height: 100%;
     color: @text-toolbar-header-ie;
diff --git a/apps/common/main/resources/less/synchronize-tip.less b/apps/common/main/resources/less/synchronize-tip.less
index 2300df36c6..5154cda520 100644
--- a/apps/common/main/resources/less/synchronize-tip.less
+++ b/apps/common/main/resources/less/synchronize-tip.less
@@ -29,13 +29,10 @@
 
     &.theme-color {
         .asc-synchronizetip {
-            background-color: @header-background-color-ie;
-            background-color: @header-background-color;
+            .header-background-color();
             color: @text-toolbar-header-ie;
             color: @text-toolbar-header;
-            border-color: @header-background-color-ie;
-            border-color: @header-background-color;
-
+            .header-border-color();
             .close {
                 &:before, &:after {
                     background-color: @text-toolbar-header-ie;
@@ -45,14 +42,11 @@
         }
 
         .tip-arrow:before {
-            background-color: @header-background-color-ie;
-            background-color: @header-background-color;
-            border-color: @header-background-color-ie !important;
-            border-color: @header-background-color !important;
+            .header-background-color();
+            .header-border-color();
         }
         .tip-arrow:after {
-            border-color: @header-background-color-ie !important;
-            border-color: @header-background-color !important;
+            .header-border-color();
         }
     }
 
diff --git a/apps/common/main/resources/less/toolbar.less b/apps/common/main/resources/less/toolbar.less
index 249778a258..8b19f96f98 100644
--- a/apps/common/main/resources/less/toolbar.less
+++ b/apps/common/main/resources/less/toolbar.less
@@ -38,9 +38,7 @@
         align-items: stretch;
 
         .extra {
-            background-color: @header-background-color-ie;
-            background-color: @header-background-color;
-
+            .header-background-color();
             box-shadow: inset 0 @minus-px 0 0 @border-toolbar-active-panel-top;
         }
 
@@ -60,8 +58,7 @@
 
     .tabs {
         //flex-grow: 1;
-        background-color: @header-background-color-ie;
-        background-color: @header-background-color;
+        .header-background-color();
         position: relative;
         overflow: hidden;
         display: flex;
@@ -174,6 +171,10 @@
             &.left{
                 box-shadow: 5px 0 20px 5px @header-background-color-ie;
                 box-shadow: 18px calc(@tabs-scroller-height - @scaled-one-px-value) 0 10px @border-toolbar-active-panel-top, 5px 0 20px 5px @header-background-color;
+                .pdf-form & {
+                    box-shadow: 5px 0 20px 5px @header-background-color-pdf-ie;
+                    box-shadow: 18px calc(@tabs-scroller-height - @scaled-one-px-value) 0 10px @border-toolbar-active-panel-top, 5px 0 20px 5px @header-background-color-pdf;
+                }
 
                 &:after {
                     transform: rotate(135deg);
@@ -188,6 +189,10 @@
             &.right{
                 box-shadow: -5px 0 20px 5px @header-background-color-ie;
                 box-shadow: -10px calc(@tabs-scroller-height - @scaled-one-px-value) 0 10px @border-toolbar-active-panel-top, -5px 0 20px 5px @header-background-color;
+                .pdf-form & {
+                    box-shadow: -5px 0 20px 5px @header-background-color-pdf-ie;
+                    box-shadow: -10px calc(@tabs-scroller-height - @scaled-one-px-value) 0 10px @border-toolbar-active-panel-top, -5px 0 20px 5px @header-background-color-pdf;
+                }
 
                 &:after {
                     transform: rotate(-45deg);
@@ -466,7 +471,7 @@
     .toolbar {
         @underscore_height: 3px;
 
-        .tabs, .extra {
+        .tabs, .box-tabs .extra {
             background-color: transparent;
             box-shadow: inset 0 -1px 0 0 @border-regular-control-ie;
             box-shadow: inset 0 -1px 0 0 @border-regular-control;
@@ -652,8 +657,7 @@
 
         &.editor-native-color {
             .tabs li:after {
-                border-color: @header-background-color-ie;
-                border-color: @header-background-color;
+                .header-border-color();
             }
         }
     }
diff --git a/apps/common/main/resources/less/variables.less b/apps/common/main/resources/less/variables.less
index d02a0fef86..2d03274209 100644
--- a/apps/common/main/resources/less/variables.less
+++ b/apps/common/main/resources/less/variables.less
@@ -40,6 +40,11 @@
 @brand-danger:          #d9534f;
 @brand-info:            #5bc0de;
 
+@header-background-color-pdf-ie: @toolbar-header-pdf-ie;
+@header-background-color-pdf: var(--toolbar-header-pdf);
+@toolbar-header-text-on-background-pdf-ie: @text-toolbar-header-on-background-pdf-ie;
+@toolbar-header-text-on-background-pdf: var(--text-toolbar-header-on-background-pdf);
+
 // Scaffolding
 // -------------------------
 
diff --git a/apps/documenteditor/main/app/controller/Main.js b/apps/documenteditor/main/app/controller/Main.js
index fbb551e92d..2c13d20ffb 100644
--- a/apps/documenteditor/main/app/controller/Main.js
+++ b/apps/documenteditor/main/app/controller/Main.js
@@ -549,13 +549,13 @@ define([
 //                    docInfo.put_Review(this.permissions.review);
 
                     var type = /^(?:(pdf|djvu|xps|oxps))$/.exec(data.doc.fileType);
-                    var coEditMode = (type && typeof type[1] === 'string') ? 'strict' :  // offline viewer for pdf|djvu|xps|oxps
+                    var coEditMode = (type && typeof type[1] === 'string' && !window.isPDFForm) ? 'strict' :  // offline viewer for pdf|djvu|xps|oxps
                                     !(this.editorConfig.coEditing && typeof this.editorConfig.coEditing == 'object') ? 'fast' : // fast by default
                                     this.editorConfig.mode === 'view' && this.editorConfig.coEditing.change!==false ? 'fast' : // if can change mode in viewer - set fast for using live viewer
                                     this.editorConfig.coEditing.mode || 'fast';
                     docInfo.put_CoEditingMode(coEditMode);
 
-                    if (type && typeof type[1] === 'string') {
+                    if (type && typeof type[1] === 'string' && !window.isPDFForm) {
                         this.permissions.edit = this.permissions.review = false;
                     }
                 }
@@ -568,8 +568,8 @@ define([
                         $('#editor-container').find('.doc-placeholder').css('margin-top', 19);
                 }
 
-                var type = data.doc ? /^(?:(docxf|oform))$/.exec(data.doc.fileType) : false;
-                this.appOptions.isFormCreator = !!(type && typeof type[1] === 'string') && this.appOptions.canFeatureForms; // show forms only for docxf or oform
+                var type = data.doc ? /^(?:(docxf|oform)|(pdf))$/.exec(data.doc.fileType) : false;
+                this.appOptions.isFormCreator = !!(type && (typeof type[1] === 'string' || typeof type[2] === 'string' && window.isPDFForm)) && this.appOptions.canFeatureForms; // show forms only for docxf or oform
 
                 type = data.doc ? /^(?:(oform))$/.exec(data.doc.fileType) : false;
                 this.appOptions.isOForm = !!(type && typeof type[1] === 'string');
@@ -642,7 +642,7 @@ define([
                         Asc.c_oAscFileType.PNG
                     ];
                 var type = /^(?:(pdf|djvu|xps|oxps))$/.exec(this.document.fileType);
-                if (type && typeof type[1] === 'string') {
+                if (type && typeof type[1] === 'string' && !window.isPDFForm) {
                     if (!(format && (typeof format == 'string')) || type[1]===format.toLowerCase()) {
                         var options = new Asc.asc_CDownloadOptions();
                         options.asc_setIsDownloadEvent(true);
@@ -1564,7 +1564,7 @@ define([
 
                 if ( this.onServerVersion(params.asc_getBuildVersion()) || !this.onLanguageLoaded()) return;
 
-                var isPDFViewer = /^(?:(pdf|djvu|xps|oxps))$/.test(this.document.fileType);
+                var isPDFViewer = /^(?:(pdf|djvu|xps|oxps))$/.test(this.document.fileType) && !window.isPDFForm;
 
                 this.permissions.review = (this.permissions.review === undefined) ? (this.permissions.edit !== false) : this.permissions.review;
 
diff --git a/apps/documenteditor/main/index.html b/apps/documenteditor/main/index.html
index 2ab030ebe4..6aed627542 100644
--- a/apps/documenteditor/main/index.html
+++ b/apps/documenteditor/main/index.html
@@ -59,6 +59,11 @@
             background: var(--toolbar-header-document, #446995);
         }
 
+        .pdf-form .loadmask > .brendpanel {
+            background: #AA5252;
+            background: var(--toolbar-header-pdf, #AA5252);
+        }
+
         .loadmask > .brendpanel > div {
             display: flex;
             align-items: center;
@@ -255,10 +260,12 @@
             lang = (params["lang"] || 'en').split(/[\-\_]/)[0],
             hideLogo = params["headerlogo"]==='',
             logo = params["headerlogo"] ? encodeUrlParam(params["headerlogo"]) : null,
-            logoDark = params["headerlogodark"] ? encodeUrlParam(params["headerlogodark"]) : null;
+            logoDark = params["headerlogodark"] ? encodeUrlParam(params["headerlogodark"]) : null,
+            isForm = params["isForm"]==='true';
 
         window.frameEditorId = params["frameEditorId"];
         window.parentOrigin = params["parentOrigin"];
+        window.isPDFForm = isForm;
 
         if(/MSIE \d|Trident.*rv:/.test(navigator.userAgent)) {
             document.write('<script src="../../common/main/lib/util/fix-ie-compat.js"><\/script>');
@@ -294,6 +301,7 @@
             view = params["mode"] == 'view',
             visible = true;
 
+        isForm && document.body.classList.add('pdf-form');
         (compact || view || notoolbar) && document.querySelector('.brendpanel > :nth-child(2)').remove();
 
         if (compact || view) {
diff --git a/apps/documenteditor/main/index.html.deploy b/apps/documenteditor/main/index.html.deploy
index 64e969bb26..5b897f64bc 100644
--- a/apps/documenteditor/main/index.html.deploy
+++ b/apps/documenteditor/main/index.html.deploy
@@ -37,6 +37,11 @@
             background: var(--toolbar-header-document, #446995);
         }
 
+        .pdf-form .loadmask > .brendpanel {
+            background: #AA5252;
+            background: var(--toolbar-header-pdf, #AA5252);
+        }
+
         .loadmask > .brendpanel > div {
             display: flex;
             align-items: center;
@@ -228,10 +233,12 @@
             lang = (params["lang"] || 'en').split(/[\-\_]/)[0],
             hideLogo = params["headerlogo"]==='',
             logo = params["headerlogo"] ? encodeUrlParam(params["headerlogo"]) : null,
-            logoDark = params["headerlogodark"] ? encodeUrlParam(params["headerlogodark"]) : null;
+            logoDark = params["headerlogodark"] ? encodeUrlParam(params["headerlogodark"]) : null,
+            isForm = params["isForm"]==='true';
 
         window.frameEditorId = params["frameEditorId"];
         window.parentOrigin = params["parentOrigin"];
+        window.isPDFForm = isForm;
     </script>
 
     <link rel="stylesheet" type="text/css" href="../../../apps/documenteditor/main/resources/css/app.css">
@@ -258,6 +265,7 @@
             view = params["mode"] == 'view',
             visible = true;
 
+        isForm && document.body.classList.add('pdf-form');
         (compact || view || notoolbar) && document.querySelector('.brendpanel > :nth-child(2)').remove();
 
         if (compact || view) {
diff --git a/apps/documenteditor/main/index_loader.html b/apps/documenteditor/main/index_loader.html
index 6bb5a21201..701351df10 100644
--- a/apps/documenteditor/main/index_loader.html
+++ b/apps/documenteditor/main/index_loader.html
@@ -219,9 +219,11 @@
             customer = params["customer"] ? ('<div class="loader-page-text-customer">' + encodeUrlParam(params["customer"]) + '</div>') : '',
             margin = (customer !== '') ? 50 : 20,
             loading = 'Loading...',
-            logo = params["logo"] ? ((params["logo"] !== 'none') ? ('<img src="' + encodeUrlParam(params["logo"]) + '" class="loader-logo" />') : '') : null;
+            logo = params["logo"] ? ((params["logo"] !== 'none') ? ('<img src="' + encodeUrlParam(params["logo"]) + '" class="loader-logo" />') : '') : null,
+            isForm = params["isForm"]==='true';
         window.frameEditorId = params["frameEditorId"];
         window.parentOrigin = params["parentOrigin"];
+        window.isPDFForm = isForm;
         if ( lang == 'de')      loading = 'Ladevorgang...';
         else if ( lang == 'es') loading = 'Cargando...';
         else if ( lang == 'fr') loading = 'Chargement en cours...';
@@ -267,7 +269,9 @@
 <body>
 <script src="../../common/main/lib/util/htmlutils.js"></script>
 <div id="viewport"></div>
-
+<script>
+    isForm && document.body.classList.add('pdf-form');
+</script>
 <script src="../../../vendor/svg-injector/svg-injector.min.js"></script>
 <img class="inline-svg" src="../../common/main/resources/img/header/icons.svg">
 <img class="inline-svg" src="../../common/main/resources/img/toolbar/shapetypes.svg">
diff --git a/apps/documenteditor/main/index_loader.html.deploy b/apps/documenteditor/main/index_loader.html.deploy
index 3f42947d24..88dfd295c5 100644
--- a/apps/documenteditor/main/index_loader.html.deploy
+++ b/apps/documenteditor/main/index_loader.html.deploy
@@ -241,11 +241,12 @@
             customer = params["customer"] ? ('<div class="loader-page-text-customer">' + encodeUrlParam(params["customer"]) + '</div>') : '',
             margin = (customer !== '') ? 50 : 20,
             loading = 'Loading...',
-            logo = params["logo"] ? ((params["logo"] !== 'none') ? ('<img src="' + encodeUrlParam(params["logo"]) + '" class="loader-logo" />') : '') : null;
+            logo = params["logo"] ? ((params["logo"] !== 'none') ? ('<img src="' + encodeUrlParam(params["logo"]) + '" class="loader-logo" />') : '') : null,
+            isForm = params["isForm"]==='true';
 
         window.frameEditorId = params["frameEditorId"];
         window.parentOrigin = params["parentOrigin"];
-
+        window.isPDFForm = isForm;
         if ( lang == 'de')      loading = 'Ladevorgang...';
         else if ( lang == 'es') loading = 'Cargando...';
         else if ( lang == 'fr') loading = 'Chargement en cours...';
@@ -290,7 +291,9 @@
 </head>
 <body>
     <script src="../../../../../apps/common/main/lib/util/htmlutils.js?__inline=true"></script>
-
+    <script>
+        isForm && document.body.classList.add('pdf-form');
+    </script>
     <script>
         window.requireTimeourError = function(){
             var reqerr;