diff --git a/apps/red-ui/src/app/screens/empty-states/project-overview-empty/project-overview-empty.component.html b/apps/red-ui/src/app/screens/empty-states/project-overview-empty/project-overview-empty.component.html
index 7f1494eae..f005459fd 100644
--- a/apps/red-ui/src/app/screens/empty-states/project-overview-empty/project-overview-empty.component.html
+++ b/apps/red-ui/src/app/screens/empty-states/project-overview-empty/project-overview-empty.component.html
@@ -12,7 +12,7 @@
             <span translate="project-overview.upload-files-btn"></span>
         </button>
 
-        <input #fileInput (change)="handleFileUploadEvent($event)" class="file-upload-input" multiple="true" type="file" />
+        <input #fileInput (change)="handleFileUploadEvent($event)" class="file-upload-input" multiple="true" type="file" accept="application/pdf" />
 
         <button [routerLink]="['/ui/projects/']" mat-icon-button class="close-btn">
             <mat-icon svgIcon="red:close"></mat-icon>
diff --git a/apps/red-ui/src/app/state/app-state.service.ts b/apps/red-ui/src/app/state/app-state.service.ts
index c4eb0e281..87c2a4018 100644
--- a/apps/red-ui/src/app/state/app-state.service.ts
+++ b/apps/red-ui/src/app/state/app-state.service.ts
@@ -15,11 +15,11 @@ import { Router } from '@angular/router';
 import { UserService } from '../user/user.service';
 import { forkJoin } from 'rxjs';
 import { tap } from 'rxjs/operators';
-import { download } from '../utils/file-download-utils';
 import { humanize } from '../utils/functions';
 import { FileStatusWrapper } from '../screens/file/model/file-status.wrapper';
 import { ProjectWrapper } from './model/project.wrapper';
 import { saveAs } from 'file-saver';
+
 export interface AppState {
     projects: ProjectWrapper[];
     activeProjectId: string;
@@ -183,11 +183,20 @@ export class AppStateService {
         return activeFileWrapper;
     }
 
+    private _automaticallyReanalyseErrorFiles(project: ProjectWrapper) {
+        project.files.forEach((file) => {
+            if (file.status === 'ERROR') {
+                this._reanalysisControllerService.reanalyzeFile(project.projectId, file.fileId).subscribe(() => {});
+            }
+        });
+    }
+
     async getFiles(project?: ProjectWrapper) {
         if (!project) {
             project = this.activeProject;
         }
         const files = await this._statusControllerService.getProjectStatus(project.project.projectId).toPromise();
+
         const oldFiles = [...project.files];
 
         const fileStatusChangedEvent = [];
@@ -217,7 +226,7 @@ export class AppStateService {
         }
 
         project.files = files.map((f) => new FileStatusWrapper(f, this._userService.getNameForId(f.currentReviewer)));
-
+        this._automaticallyReanalyseErrorFiles(project);
         this._computeStats();
 
         fileReanalysedEvent.forEach((file) => this.fileReanalysed.emit(file));
diff --git a/apps/red-ui/src/app/upload/file-drop/file-drop.component.html b/apps/red-ui/src/app/upload/file-drop/file-drop.component.html
index 6d9ef7a49..314216e94 100644
--- a/apps/red-ui/src/app/upload/file-drop/file-drop.component.html
+++ b/apps/red-ui/src/app/upload/file-drop/file-drop.component.html
@@ -2,7 +2,7 @@
     <ngx-dropzone (change)="handleFileInput($event.addedFiles)" class="file-drop-zone">
         <ngx-dropzone-label>{{ 'project-overview.upload-files' | translate }}</ngx-dropzone-label>
     </ngx-dropzone>
-    <input type="file" multiple hidden />
+    <input type="file" multiple hidden accept="application/pdf" />
 
     <button (click)="close()" class="close-icon" mat-icon-button>
         <mat-icon svgIcon="red:close"></mat-icon>
diff --git a/apps/red-ui/src/app/upload/file-upload.service.ts b/apps/red-ui/src/app/upload/file-upload.service.ts
index 089ff78fa..17f7b988b 100644
--- a/apps/red-ui/src/app/upload/file-upload.service.ts
+++ b/apps/red-ui/src/app/upload/file-upload.service.ts
@@ -34,6 +34,7 @@ export class FileUploadService {
     }
 
     uploadFiles(files: FileUploadModel[]) {
+        files = files.filter((file) => file.file.type.toLowerCase() === 'application/pdf');
         files.sort((a, b) => a.file.size - b.file.size);
         this.files.push(...files);
         files.forEach((newFile) => {