Module Injection in Angular PDF Viewer

24 Apr 20261 minute to read

To customize the Angular PDF Viewer with specific features, you must import and inject the required modules. The PDF Viewer provides the following services to enable its functionalities.

Available modules

• LinkAnnotationService: Enables hyperlink navigation.
• BookmarkViewService: Displays and navigates document bookmarks.
• MagnificationService: Provides zoom in/out operations.
• NavigationService: Enables page navigation.
• TextSelectionService: Enables text selection.
• ThumbnailViewService: Displays page thumbnails for navigation.
• ToolbarService: Enables the built-in toolbar UI.
• PrintService: Enables printing.
• AnnotationService: Enables annotation features.
• TextSearchService: Enables text search.
• FormFieldsService: Enables form field support.
• FormDesignerService: Enables designing and editing of form fields.
• PageOrganizerService: Enables page organization features.

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Module injection

The required modules should be injected into the PDF Viewer using the providers section of the Angular component, as shown below. Only the injected module functionalities will be loaded and available in the PDF Viewer.

src/app/app.ts

import { Component } from '@angular/core';
import {
  PdfViewerModule,
  ToolbarService,
  NavigationService,
  MagnificationService,
  TextSelectionService,
  TextSearchService,
  AnnotationService
} from '@syncfusion/ej2-angular-pdfviewer';

@Component({
  selector: 'app-root',
  standalone: true,
  imports: [PdfViewerModule],
  providers: [
    ToolbarService,
    NavigationService,
    MagnificationService,
    TextSelectionService,
    TextSearchService,
    AnnotationService
  ],
  template: `
    <ejs-pdfviewer
      id="pdfViewer"
      style="height: 640px; display: block">
    </ejs-pdfviewer>
  `
})
export class AppComponent {}

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Important notes

• Inject only the required modules to reduce bundle size and improve performance.
• Module injection applies to both standalone and server-backed modes.
• If a feature is used without injecting its corresponding module, the PDF Viewer will throw a runtime error and fail to render the feature.