diff --git a/apps/red-ui/src/app/modules/pdf-viewer/services/document-viewer.service.ts b/apps/red-ui/src/app/modules/pdf-viewer/services/document-viewer.service.ts
index 3d50465dc..ed2ed54dd 100644
--- a/apps/red-ui/src/app/modules/pdf-viewer/services/document-viewer.service.ts
+++ b/apps/red-ui/src/app/modules/pdf-viewer/services/document-viewer.service.ts
@@ -1,7 +1,7 @@
 import { inject, Injectable } from '@angular/core';
 import { Core } from '@pdftron/webviewer';
 import { NGXLogger } from 'ngx-logger';
-import { fromEvent, merge, Observable, Subject } from 'rxjs';
+import { fromEvent, merge, Observable } from 'rxjs';
 import { debounceTime, filter, map, tap } from 'rxjs/operators';
 import { ActivatedRoute } from '@angular/router';
 import { PdfViewer } from './pdf-viewer.service';
@@ -23,8 +23,6 @@ export class REDDocumentViewer {
     selectedText = '';
     #document: DocumentViewer;
 
-    readonly #documentClosed$ = new Subject<undefined>();
-
     readonly #logger = inject(NGXLogger);
     readonly #userPreferenceService = inject(UserPreferenceService);
     readonly #pdf = inject(PdfViewer);
@@ -39,7 +37,7 @@ export class REDDocumentViewer {
     }
 
     get #documentUnloaded$() {
-        const event$ = merge(fromEvent(this.#document, 'documentUnloaded'), this.#documentClosed$);
+        const event$ = fromEvent(this.#document, 'documentUnloaded');
         const toBool$ = event$.pipe(map(() => false));
 
         return toBool$.pipe(tap(() => this.#logger.info('[PDF] Document unloaded')));
@@ -101,8 +99,6 @@ export class REDDocumentViewer {
     }
 
     close() {
-        this.#documentClosed$.next(undefined);
-
         const closeAction = async () => {
             this.#logger.info('[PDF] Closing document');
             this.#document.closeDocument();
@@ -173,7 +169,7 @@ export class REDDocumentViewer {
     }
 
     async #flattenAnnotations() {
-        const pdfDoc = await this.#document.getDocument().getPDFDoc();
+        const pdfDoc = await this.PDFDoc;
         await pdfDoc.flattenAnnotations(false);
     }
 
diff --git a/package.json b/package.json
index ee27a6377..c1a034e50 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "redaction",
-  "version": "4.30.0",
+  "version": "4.31.0",
   "private": true,
   "license": "MIT",
   "scripts": {
diff --git a/paligo-theme.tar.gz b/paligo-theme.tar.gz
index 8f56d3561..752aacd0c 100644
Binary files a/paligo-theme.tar.gz and b/paligo-theme.tar.gz differ