diff --git a/b0esche_cloud/lib/pages/document_viewer.dart b/b0esche_cloud/lib/pages/document_viewer.dart
index 0491e0d..b3cc532 100644
--- a/b0esche_cloud/lib/pages/document_viewer.dart
+++ b/b0esche_cloud/lib/pages/document_viewer.dart
@@ -12,6 +12,7 @@ import '../blocs/session/session_state.dart';
 import '../services/file_service.dart';
 import '../injection.dart';
 import 'package:syncfusion_flutter_pdfviewer/pdfviewer.dart';
+import 'package:syncfusion_flutter_core/theme.dart';
 import 'package:go_router/go_router.dart';
 import 'package:http/http.dart' as http;
 import 'package:url_launcher/url_launcher.dart';
@@ -200,15 +201,25 @@ class _DocumentViewerModalState extends State<DocumentViewerModal> {
                 if (state is DocumentViewerReady) {
                   // Handle different file types based on MIME type
                   if (state.caps.isPdf) {
-                    // PDF viewer using SfPdfViewer
-                    return SfPdfViewer.network(
-                      state.viewUrl.toString(),
-                      headers: {'Authorization': 'Bearer ${state.token}'},
-                      onDocumentLoadFailed: (details) {},
-                      onDocumentLoaded: (PdfDocumentLoadedDetails details) {},
-                      canShowHyperlinkDialog: false,
-                      onHyperlinkClicked: (details) =>
-                          _handleHyperlink(details.uri),
+                    // PDF viewer using SfPdfViewer, wrapped in SfTheme for custom accent color
+                    return SfTheme(
+                      data: SfThemeData(
+                        pdfViewerThemeData: SfPdfViewerThemeData(
+                          backgroundColor: AppTheme.primaryBackground,
+                          scrollHeadStyle: PdfScrollHeadStyle(
+                            backgroundColor: AppTheme.accentColor,
+                          ),
+                        ),
+                      ),
+                      child: SfPdfViewer.network(
+                        state.viewUrl.toString(),
+                        headers: {'Authorization': 'Bearer ${state.token}'},
+                        onDocumentLoadFailed: (details) {},
+                        onDocumentLoaded: (PdfDocumentLoadedDetails details) {},
+                        canShowHyperlinkDialog: false,
+                        onHyperlinkClicked: (details) =>
+                            _handleHyperlink(details.uri),
+                      ),
                     );
                   } else if (state.caps.isImage) {
                     // Image viewer
@@ -787,18 +798,28 @@ class _DocumentViewerState extends State<DocumentViewer> {
                   }
 
                   if (state.caps.isPdf) {
-                    // PDF viewer using SfPdfViewer
-                    return SfPdfViewer.network(
-                      state.viewUrl.toString(),
-                      headers: token != null
-                          ? {'Authorization': 'Bearer $token'}
-                          : {},
-                      onDocumentLoadFailed: (details) {},
-                      onDocumentLoaded: (PdfDocumentLoadedDetails details) {},
-                      canShowHyperlinkDialog: false,
-                      enableHyperlinkNavigation: false,
-                      onHyperlinkClicked: (details) =>
-                          _handleHyperlink(details.uri),
+                    // PDF viewer using SfPdfViewer, wrapped in SfTheme for custom accent color
+                    return SfTheme(
+                      data: SfThemeData(
+                        pdfViewerThemeData: SfPdfViewerThemeData(
+                          backgroundColor: AppTheme.primaryBackground,
+                          scrollHeadStyle: PdfScrollHeadStyle(
+                            backgroundColor: AppTheme.accentColor,
+                          ),
+                        ),
+                      ),
+                      child: SfPdfViewer.network(
+                        state.viewUrl.toString(),
+                        headers: token != null
+                            ? {'Authorization': 'Bearer $token'}
+                            : {},
+                        onDocumentLoadFailed: (details) {},
+                        onDocumentLoaded: (PdfDocumentLoadedDetails details) {},
+                        canShowHyperlinkDialog: false,
+                        enableHyperlinkNavigation: false,
+                        onHyperlinkClicked: (details) =>
+                            _handleHyperlink(details.uri),
+                      ),
                     );
                   } else if (state.caps.isImage) {
                     // Image viewer
diff --git a/b0esche_cloud/pubspec.lock b/b0esche_cloud/pubspec.lock
index 9984504..55b71df 100644
--- a/b0esche_cloud/pubspec.lock
+++ b/b0esche_cloud/pubspec.lock
@@ -1230,7 +1230,7 @@ packages:
     source: hosted
     version: "0.9.1"
   syncfusion_flutter_core:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: syncfusion_flutter_core
       sha256: e1fdfcc3ed7e1f040ba95838780b2eb1857e3e5eccb817fbe94ea2b09c35eac4
diff --git a/b0esche_cloud/pubspec.yaml b/b0esche_cloud/pubspec.yaml
index 02465bd..3908a54 100644
--- a/b0esche_cloud/pubspec.yaml
+++ b/b0esche_cloud/pubspec.yaml
@@ -62,6 +62,7 @@ dependencies:
 
   # Video Playback
   video_player: ^2.8.2
+  syncfusion_flutter_core: ^31.2.18
 
 dev_dependencies:
   flutter_test: