kinda fix file duplication issue

# Description of Changes

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Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)
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---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

app/proprietary/src/test/java/stirling/software/proprietary/service/UserLicenseSettingsServiceTest.java

@@ -51,7 +51,8 @@ class UserLicenseSettingsServiceTest {
 
         when(applicationProperties.getPremium()).thenReturn(premium);
         when(applicationProperties.getAutomaticallyGenerated()).thenReturn(automaticallyGenerated);
-        when(automaticallyGenerated.getIsNewServer()).thenReturn(false); // Default: not a new server
+        when(automaticallyGenerated.getIsNewServer())
+                .thenReturn(false); // Default: not a new server
         when(settingsRepository.findSettings()).thenReturn(Optional.of(mockSettings));
         when(userService.getTotalUsersCount()).thenReturn(80L);
         when(settingsRepository.save(any(UserLicenseSettings.class)))

frontend/src/core/components/AppProviders.tsx

@@ -84,7 +84,6 @@ export function AppProviders({ children, appConfigRetryOptions, appConfigProvide
                 <ScarfTrackingInitializer />
                 <AppConfigLoader />
                 <FileContextProvider enableUrlSync={true} enablePersistence={true}>
-                  <AppInitializer />
                   <BrandingAssetManager />
                   <ToolRegistryProvider>
                       <NavigationProvider>
@@ -93,6 +92,7 @@ export function AppProviders({ children, appConfigRetryOptions, appConfigProvide
                             <HotkeyProvider>
                               <SidebarProvider>
                                 <ViewerProvider>
+                                  <AppInitializer />
                                   <PageEditorProvider>
                                     <SignatureProvider>
                                       <RightRailProvider>

frontend/src/desktop/hooks/useAppInitialization.ts

@@ -1,20 +1,28 @@
-import { useEffect, useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import { useOpenedFile } from '@app/hooks/useOpenedFile';
 import { fileOpenService } from '@app/services/fileOpenService';
 import { useFileManagement } from '@app/contexts/file/fileHooks';
+import { useToolWorkflow } from '@app/contexts/ToolWorkflowContext';
+import { useNavigationActions } from '@app/contexts/NavigationContext';
+import { useViewer } from '@app/contexts/ViewerContext';
 
 /**
  * App initialization hook
  * Desktop version: Handles Tauri-specific file initialization
  * Requires FileContext - must be used inside FileContextProvider
  * - Handles files opened with the app (adds directly to FileContext)
+ * - Opens single files in reader mode (collapsed tools for clean viewing)
  */
 export function useAppInitialization(): void {
   // Get file management actions
   const { addFiles } = useFileManagement();
+  const { setReaderMode } = useToolWorkflow();
+  const { actions } = useNavigationActions();
+  const { setActiveFileIndex } = useViewer();
 
   // Handle files opened with app (Tauri mode)
   const { openedFilePaths, loading: openedFileLoading } = useOpenedFile();
+  const hasSetInitialReaderMode = useRef(false);
 
   // Load opened files and add directly to FileContext
   useEffect(() => {
@@ -46,6 +54,15 @@ export function useAppInitialization(): void {
         if (filesArray.length > 0) {
           await addFiles(filesArray);
           console.log(`[Desktop] ${filesArray.length} opened file(s) added to FileContext`);
+
+          // Open single files in reader mode only on first app launch
+          if (filesArray.length === 1 && !hasSetInitialReaderMode.current) {
+            hasSetInitialReaderMode.current = true;
+            setReaderMode(true);
+            actions.setWorkbench('viewer');
+            setActiveFileIndex(0);
+            console.log('[Desktop] Opening in reader mode');
+          }
         }
       } catch (error) {
         console.error('[Desktop] Failed to load opened files:', error);