//For complete examples and data files, please go to https://github.com/groupdocsmetadata/GroupDocs_Metadata_NET
// initialize DocFormat
DocFormat docFormat = new DocFormat(Common.MapSourceFilePath(filePath));
//get comments...
DocComment[] comments = docFormat.ExtractComments();
//get commnets by author...
//DocComment[] comments = docFormat.ExtractComments("USMAN");
// display comments
foreach (DocComment comment in comments)
{
Console.WriteLine("Author: ", comment.Author);
Console.WriteLine("Created on Date: ", comment.CreatedDate);
Console.WriteLine("Initials: ", comment.Initials);
Console.WriteLine("\n");
}