I do not understand why the file size increases so much when adding only one comment. The original file is only 66 KB. Adding a comment of a name makes the file size 1.39 MB. This is absolutely ridiculous. I used a different program to do the same thing, and the file was only 67 KB. When you have larger files with multiple comments, it becomes an issue with emailing the files. This has become an increasingly frequent issue over the last couple of years. I have no idea what has changed along the way, but this issue really needs some attention. I also would love the comment pane to stay closed unless specifically opened.