Thank you the helpful comments from khchan3501. I have not considered the size and position of my name because I was writing a book for my friend to help her to use Zoner Photo Studio 12 (which is shipped with my and her Rollei Compactline 102 cameras). I just added my name to the photo and wrote the steps my book. Thanks for reminding me this issue. I have considered the issue of whether I should add an effect to the photo for a long time. This becomes the question whether one should use photo-editing. Personally, I prefer to avoid photo-editing because I take photos now just because I want to stay away from my 13 computers and my y computers are all too busy in doing scientific calculations. However, even 100 years ago, people did a lot of things to edit the photo. In view of the history of photography, I am not against photo-editing (including the modern computer based photo-editing). I will re-consider this issue again.