improve

src/app/modals/document-viewer/document-viewer.module.ts

@@ -7,7 +7,6 @@ import { IonicModule } from '@ionic/angular';
 import { DocumentViewerPageRoutingModule } from './document-viewer-routing.module';
 
 import { DocumentViewerPage } from './document-viewer.page';
-import { PdfViewerModule } from 'ng2-pdf-viewer';
 
 
 @NgModule({
@@ -17,7 +16,6 @@ import { PdfViewerModule } from 'ng2-pdf-viewer';
     IonicModule,
     DocumentViewerPageRoutingModule,
     //
-    PdfViewerModule
   ],
   declarations: [DocumentViewerPage]
 })

src/app/modals/view-media/view-media.module.ts

@@ -8,7 +8,6 @@ import { ViewMediaPageRoutingModule } from './view-media-routing.module';
 
 import { ViewMediaPage } from './view-media.page';
 import { FontAwesomeModule } from '@fortawesome/angular-fontawesome';
-import { PdfViewerModule } from 'ng2-pdf-viewer';
 
 @NgModule({
   imports: [
@@ -17,7 +16,6 @@ import { PdfViewerModule } from 'ng2-pdf-viewer';
     IonicModule,
     FontAwesomeModule,
     ViewMediaPageRoutingModule,
-    PdfViewerModule
   ],
   declarations: [ViewMediaPage]
 })

src/app/modals/view-media/view-media.page.html

@@ -24,13 +24,11 @@
               <img src="{{image}}">
             </div>
             <div *ngIf="type == 'application/pdf'">
-              <pdf-viewer [src]="image" [render-text]="true" [original-size]="false" [zoom]="0.5" style="display: block;">
-              </pdf-viewer>
             </div>
           </div>
         </ion-slide>
       </ion-slides>
-      
+
     </div>
   </div>
 </ion-content>