如何使用 GroupDocs.Annotation 在 Java 中创建交互式 PDF 按钮

<repositories>
    <repository>
        <id>repository.groupdocs.com</id>
        <name>GroupDocs Repository</name>
        <url>https://releases.groupdocs.com/annotation/java/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>com.groupdocs</groupId>
        <artifactId>groupdocs-annotation</artifactId>
        <version>25.2</version>
    </dependency>
</dependencies>

import com.groupdocs.annotation.Annotator;

try (Annotator annotator = new Annotator("YOUR_DOCUMENT_DIRECTORY/input_file.pdf")) {
    // If this runs without errors, you're good to go!
    System.out.println("GroupDocs.Annotation is ready!");
} catch (Exception e) {
    e.printStackTrace();
}

try (Annotator annotator = new Annotator("YOUR_DOCUMENT_DIRECTORY/input_file.pdf")) {
    // All your button creation magic happens inside this block
}

import com.groupdocs.annotation.models.formatspecificcomponents.pdf.ButtonComponent;
import java.util.Date;

ButtonComponent buttonComponent = new ButtonComponent();
buttonComponent.setCreatedOn(new Date());
buttonComponent.setStyle(BorderStyle.DASHED);
buttonComponent.setMessage("This is a button component");
buttonComponent.setBorderColor(1422623);  // RGB for border
buttonComponent.setPenColor(14527697);    // RGB for pen outline
buttonComponent.setButtonColor(10832612); // RGB for button
buttonComponent.setPageNumber(0);
buttonComponent.setBorderWidth(12);
buttonComponent.setBox(new Rectangle(100, 300, 90, 30));

annotator.add(buttonComponent);
annotator.save("YOUR_OUTPUT_DIRECTORY/result_button_component.pdf");

try (Annotator annotator = new Annotator("YOUR_DOCUMENT_DIRECTORY/input_file.pdf")) {
    
    // Create replies first
    import com.groupdocs.annotation.models.Reply;
    import java.util.ArrayList;
    import java.util.List;

    Reply reply1 = new Reply();
    reply1.setComment("First comment");
    reply1.setRepliedOn(new Date());

    Reply reply2 = new Reply();
    reply2.setComment("Second comment");
    reply2.setRepliedOn(new Date());

    List<Reply> replies = new ArrayList<>();
    replies.add(reply1);
    replies.add(reply2);

    // Create button component (same as before)
    ButtonComponent buttonComponent = new ButtonComponent();
    buttonComponent.setCreatedOn(new Date());
    buttonComponent.setStyle(BorderStyle.DASHED);
    buttonComponent.setMessage("This is a button component");
    buttonComponent.setBorderColor(1422623);
    buttonComponent.setPenColor(14527697);
    buttonComponent.setButtonColor(10832612);
    buttonComponent.setPageNumber(0);
    buttonComponent.setBorderWidth(12);
    buttonComponent.setBox(new Rectangle(100, 300, 90, 30));
    
    // Attach replies to button
    buttonComponent.setReplies(replies);

    annotator.add(buttonComponent);
    annotator.save("YOUR_OUTPUT_DIRECTORY/result_button_with_replies.pdf");
}

File inputFile = new File("YOUR_DOCUMENT_DIRECTORY/input_file.pdf");
if (!inputFile.exists()) {
    System.err.println("Input file not found: " + inputFile.getAbsolutePath());
    return;
}

try (Annotator annotator = new Annotator("input.pdf")) {
    // Add multiple buttons
    annotator.add(button1);
    annotator.add(button2);
    annotator.add(button3);
    
    // Save once at the end
    annotator.save("output.pdf");
}

try (Annotator annotator = new Annotator("input.pdf")) {
    // Your annotation work here
} // Annotator automatically closed here

try (Annotator annotator = new Annotator("input.pdf")) {
    ButtonComponent button = new ButtonComponent();
    // Configure button...
    
    annotator.add(button);
    annotator.save("output.pdf");
    
} catch (Exception e) {
    // Log the error properly
    logger.error("Failed to create interactive PDF button", e);
    // Handle gracefully – maybe create a static version?
}