Integrating Vaadin Add-on

LIVE DEMO

You can use any third-party Vaadin add-ons located in the Vaadin Directory or elsewhere. The example below demonstrates the integration of the Pdf Viewer add-on.

To include the Vaadin add-on in your application, add the Vaadin Add-ons maven repository and the add-on dependency to the project’s build.gradle:

build.gradle
repositories {
    maven {
        url 'https://maven.vaadin.com/vaadin-addons'
    }
}

dependencies {
    implementation 'org.vaadin.addons.componentfactory:vcf-pdf-viewer:3.0.0'
}

After that, you can use the add-on components programmatically, for example:

@Autowired
private Resources resources;

@Subscribe
public void onInit(final InitEvent event) {
    PdfViewer pdfViewer = new PdfViewer();
    pdfViewer.setSizeFull();

    StreamResource resource = new StreamResource("example.pdf", () ->
            resources.getResourceAsStream("META-INF/resources/pdf/example.pdf"));
    pdfViewer.setSrc(resource);

    getContent().add(pdfViewer);
}
pdf viewer
Figure 1. PdfViewer displays a PDF file from resources