if I haven't any knowlege of how to edit photo, can I use this photo editor?

Yes!

Magic Photo is very easy to use. You can learn how to use this photo editor in minutes, even if you haven't any experience of editing picture.

2) Install this image editor to your computer.

3) Run this photo editor, click Button 'Photo' to load your digital photo.

4) Click Button 'Mask' to choose mask for your photo

5) Click Button 'Backdrop' to choose another picture as backdrop image.

6) Click Button 'Flower' to add some flowers to make the photo more beautiful.