Add Link Annotations in PDF using Java

Add Link annotation to PDF document programmaticaly using Aspose.PDF for Java Library

C# Java C++ Python

In order to annotate PDF file, we’ll use Aspose.PDF for Java API which is a feature-rich, powerful and easy to use conversion API for Java platform. You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.

Repository

<repository>
    <id>AsposeJavaAPI</id>
    <name>Aspose Java AP</name>
    <url>https://releases.aspose.com/java/repo/</url>
</repository>

Dependency

<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-pdf</artifactId>
<version>version of aspose-pdf API</version>
</dependency>

Add Link Annotation via Java

You need Aspose.PDF for Java to try the code in your environment.

Load PDF in an instance of Document class
Create a new page or get a reference to an existing one
Create Link annotation
Call method Add for Link annotation from Page.Annotations collections
Save the file again

System Requirements

Aspose.PDF for Java is supported on all major operating systems. Just make sure that you have the following prerequisites.

Microsoft Windows or a compatible OS with Java Runtime Environment for JSP/JSF Application and Desktop Applications.
Development environment like Eclipse or IntelliJ IDEA
Aspose.PDF for Java library referenced in your project.

Add Link Annotations from PDF - Java

Example

    public static void AddLinkAnnotation() {
        try {
            // Load the PDF file
            Document document = new Document(_dataDir + "SimpleResume.pdf");
            Page page = document.getPages().get_Item(1);

            // Create TextFragmentAbsorber object to find a phone number
            TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber("678-555-0103");

            // Accept the absorber for the 1st page only
            page.accept(textFragmentAbsorber);

            TextFragment phoneNumberFragment = textFragmentAbsorber.getTextFragments().get_Item(1);

            // Create Link Annotation and set the action to call a phone number
            LinkAnnotation linkAnnotation = new LinkAnnotation(page, phoneNumberFragment.getRectangle());
            linkAnnotation.setAction(new GoToURIAction("callto:678-555-0103"));

            // Add annotation to page
            page.getAnnotations().add(linkAnnotation);
            document.save(_dataDir + "SimpleResume_mod.pdf");
        } catch (Exception ex) {
            System.out.println(ex.getMessage());
        }
    }