Add or Remove Comments in PowerPoint PPT/PPTX in Java

readme.md

Add, remove and read comments in PowerPoint PPT/PPTX presentations in Java: https://blog.aspose.com/2022/02/08/add-comments-in-powerpoint-ppt-in-java/

add-comment-in-ppt-slide.java

// Create or load presentation
Presentation presentation = new Presentation("presentation.pptx");
try {
    // Add an empty slide or get reference of an existing slide
    presentation.getSlides().addEmptySlide(presentation.getLayoutSlides().get_Item(0));

    // Add an author
    ICommentAuthor author = presentation.getCommentAuthors().addAuthor("Usman", "UA");

    // Set the position for comments
    Point2D.Float point = new Point2D.Float(0.2f, 0.2f);

    // Add slide comment on first slide
    author.getComments().addComment("Hello, this is slide comment", presentation.getSlides().get_Item(0), point, new Date());

    // Save presentation
    presentation.save("add-comment.pptx", SaveFormat.Pptx);
} finally {
  if (presentation != null)
    presentation.dispose();
}

add-comment-reply-in-ppt-slide.java

// Create or load presentation
Presentation presentation = new Presentation("presentation.pptx");
try {
    // Add an empty slide or get reference of an existing slide
    presentation.getSlides().addEmptySlide(presentation.getLayoutSlides().get_Item(0));

    // Add an author
    ICommentAuthor author = presentation.getCommentAuthors().addAuthor("Usman", "UA");

    // Set the position for comments
    Point2D.Float point = new Point2D.Float(0.2f, 0.2f);

    // Add slide comment on first slide
    IComment comment = author.getComments().addComment("Hello, this is slide comment", presentation.getSlides().get_Item(0), point, new Date());

    // Add reply comment
    IComment subReply = author.getComments().addComment("This is the reply to the comment.", presentation.getSlides().get_Item(0),  new Point2D.Float(10, 10), new Date());
    subReply.setParentComment(comment);

    // Add reply comment
    IComment reply2 = author.getComments().addComment("This is second reply.", presentation.getSlides().get_Item(0),  new Point2D.Float(10, 10), new Date());
    reply2.setParentComment(comment);

    // Save presentation
    presentation.save("add-comment-reply.pptx", SaveFormat.Pptx);
} finally {
  if (presentation != null)
    presentation.dispose();
}

read-ppt-slide-comments.java

// Load presentation
Presentation presentation = new Presentation("add-comment.pptx");
try {
  // Loop through authors
  for (ICommentAuthor commentAuthor : presentation.getCommentAuthors())
    {
        // Access each author
        CommentAuthor author = (CommentAuthor) commentAuthor;

        // Loop through author's comments
        for (IComment comment1 : author.getComments())
        {
            // Read comment
            Comment comment = (Comment) comment1;
            System.out.println("ISlide :" + comment.getSlide().getSlideNumber() + " has comment: " + comment.getText() +
                    " with Author: " + comment.getAuthor().getName() + " posted on time :" + comment.getCreatedTime() + "\n");
        }
    }
} finally {
  if (presentation != null)
    presentation.dispose();
}

remove-ppt-slide-comments.java

// Load presentation
Presentation presentation = new Presentation("add-comment.pptx");
try {
    // Get first slide
    ISlide slide = presentation.getSlides().get_Item(0);

    // Get comments
    IComment[] comments = slide.getSlideComments(null);

    // Remove desired comment using index
    comments[0].remove();

    // Save presentation
    presentation.save("remove-comments.pptx", SaveFormat.Pptx);
} finally {
  if (presentation != null)
    presentation.dispose();
}