Add Highlight Annotations in PDF using Java

Add Highlight 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 Highlight 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 Highlight annotation
Call method Add for Highlight 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 Highlight Annotations from PDF - Java

Example

public static void AddTextMarkupAnnotation() {
        try {
            // Load the PDF file
            Document document = new Document(_dataDir + "sample.pdf");
            Page page = document.getPages().get_Item(1);
            TextFragmentAbsorber tfa = new TextFragmentAbsorber("PDF");
            tfa.visit(page);

            // Create annotations
            HighlightAnnotation highlightAnnotation = new HighlightAnnotation(page,
                    tfa.getTextFragments().get_Item(1).getRectangle());
            highlightAnnotation.setTitle("Aspose User");
            highlightAnnotation.setColor(Color.getLightGreen());

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