Java PDF 註解庫：建立註解回覆 Java

<repositories>
    <repository>
        <id>groupdocs-repo</id>
        <url>https://repo.groupdocs.com/repo</url>
    </repository>
</repositories>

<dependencies>
    <dependency>
        <groupId>com.groupdocs</groupId>
        <artifactId>groupdocs-annotation</artifactId>
        <version>25.2</version>
    </dependency>
</dependencies>

License license = new License();
license.setLicense("GroupDocs.Annotation.lic");

import com.groupdocs.annotation.Annotator;
import com.groupdocs.annotation.models.Point;
import com.groupdocs.annotation.models.annotation.SquigglyAnnotation;
import com.groupdocs.annotation.models.annotation.Reply;
import com.groupdocs.annotation.options.SaveOptions;

SquigglyAnnotation squiggly = new SquigglyAnnotation();
squiggly.setPageNumber(1);
squiggly.setColor(0xFFFF0000); // ARGB red
squiggly.setOpacity(0.7);
squiggly.setPoints(Arrays.asList(
    new Point(100, 200),
    new Point(300, 200)
));

Reply reply1 = new Reply();
reply1.setComment("Please double‑check this clause.");
reply1.setAuthor("Alice");
reply1.setCreatedOn(new Date());

Reply reply2 = new Reply();
reply2.setComment("I think the wording is correct.");
reply2.setAuthor("Bob");
reply2.setCreatedOn(new Date());

squiggly.setReplies(Arrays.asList(reply1, reply2));

try (Annotator annotator = new Annotator("input.pdf")) {
    annotator.add(squiggly);
    SaveOptions options = new SaveOptions();
    options.setOutputPath("output.pdf");
    annotator.save(options);
}

squiggly.setBorderWidth(2);
squiggly.setColor(0xFF00FF00); // ARGB green
squiggly.setOpacity(0.5);

- Verify page dimensions with annotator.getPageInfo(pageIndex)
- Ensure all Point X/Y values are within [0, pageWidth] and [0, pageHeight]
- Confirm license file path and that license.setLicense() returns true
- Check that squiggly.setPageNumber(pageIndex) uses zero‑based indexing

int argbRed = 0xFFFF0000; // Alpha=255, Red=255, Green=0, Blue=0
squiggly.setColor(argbRed);

for (String filePath : pdfList) {
    try (Annotator annotator = new Annotator(filePath)) {
        // add annotations
        annotator.save(new SaveOptions().setOutputPath(filePath.replace(".pdf", "_annotated.pdf")));
    }
}

ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
pdfList.parallelStream().forEach(path -> executor.submit(() -> annotateDocument(path)));
executor.shutdown();
executor.awaitTermination(1, TimeUnit.HOURS);

1. Upload contract → 2. Auto‑apply squiggly for missing signatures → 3. Add reviewer replies → 4. Route to signing service.

<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;

// Initialize your annotator - this is your entry point to all annotation features
try (Annotator annotator = new Annotator("path/to/your/document.pdf")) {
    // All your annotation magic happens here
    System.out.println("Annotator initialized successfully!");
}

import com.groupdocs.annotation.Annotator;
import com.groupdocs.annotation.models.Point;
import com.groupdocs.annotation.models.Reply;
import com.groupdocs.annotation.models.annotationmodels.SquigglyAnnotation;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

// Create a new SquigglyAnnotation instance
SquigglyAnnotation squigglyAnnotation = new SquigglyAnnotation();

// Set the creation date of the annotation
squigglyAnnotation.setCreatedOn(new Date());

// Define font and background colors using RGB values
squigglyAnnotation.setFontColor(65535); // Yellow color in ARGB format
squigglyAnnotation.setBackgroundColor(16761035); // Light blue color in ARGB format

// Set a message to display with the annotation
squigglyAnnotation.setMessage("This is squiggly annotation");

// Define opacity (range 0.0 - 1.0)
squigglyAnnotation.setOpacity(0.7);

// Specify the page number for the annotation (zero-based index)
squigglyAnnotation.setPageNumber(0);

// Set squiggly line color specific to Word and PDF documents
squigglyAnnotation.setSquigglyColor(1422623); // Color code for squiggly lines

// Define points marking the start and end of the annotation on the page
List<Point> points = new ArrayList<>();
points.add(new Point(80, 730));
points.add(new Point(240, 730));
points.add(new Point(80, 650));
points.add(new Point(240, 650));
squigglyAnnotation.setPoints(points);

// Create replies to the annotation (optional)
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);

// Associate replies with the annotation
squigglyAnnotation.setReplies(replies);

try (Annotator annotator = new Annotator("YOUR_DOCUMENT_DIRECTORY/input.pdf")) {
    // Add the prepared squiggly annotation to the document
    annotator.add(squigglyAnnotation);
    
    // Save the annotated document
    annotator.save("YOUR_OUTPUT_DIRECTORY/result_squiggly_annotation.pdf");
}

// Custom color configurations
squigglyAnnotation.setFontColor(0xFF0000); // Red text
squigglyAnnotation.setBackgroundColor(0x00FF00); // Green background
squigglyAnnotation.setSquigglyColor(0x0000FF); // Blue squiggly line

// Transparency effects
squigglyAnnotation.setOpacity(0.3); // Very subtle
// or
squigglyAnnotation.setOpacity(0.9); // Almost opaque

// Verify your points are within page boundaries
System.out.println("Page dimensions: " + annotator.getPageInfo(0));

// Check if your points make sense
List<Point> points = squigglyAnnotation.getPoints();
for (Point point : points) {
    System.out.println("Point: (" + point.getX() + ", " + point.getY() + ")");
}

// Wrong: RGB format
int wrongColor = 0xFF0000; // This might not work as expected

// Right: ARGB format
int rightColor = 0xFFFF0000; // Full opacity red

// Good practice: Use try-with-resources
try (Annotator annotator = new Annotator(inputPath)) {
    // Process annotations
    annotator.add(annotation);
    annotator.save(outputPath);
} // Automatic cleanup happens here

// Avoid: Manual resource management
Annotator annotator = new Annotator(inputPath); // Resources might leak

public void processBatch(List<String> documentPaths) {
    for (String path : documentPaths) {
        try (Annotator annotator = new Annotator(path)) {
            // Process each document independently
            addAnnotations(annotator);
            annotator.save(getOutputPath(path));
        } catch (Exception e) {
            // Handle individual document failures without stopping the batch
            System.err.println("Failed to process: " + path + " - " + e.getMessage());
        }
    }
}

public class DocumentWorkflow {
    public void reviewDocument(String documentPath, ReviewLevel level) {
        try (Annotator annotator = new Annotator(documentPath)) {
            switch (level) {
                case GRAMMAR_CHECK:
                    addGrammarAnnotations(annotator);
                    break;
                case LEGAL_REVIEW:
                    addLegalAnnotations(annotator);
                    break;
                case FINAL_PROOF:
                    addProofreadingAnnotations(annotator);
                    break;
            }
            annotator.save(getReviewedPath(documentPath));
        }
    }
}