How to create watermark in photo

By using photoshop:

1. write a text by using 'Text tool' 

2. highlight the text

3.go to 'Layer' > 'Layer style' > 'Blending options' >  choose the 'blend mode' you like > adjust 'Opacity' > adjust 'Fill opacity' > click on 'OK'

4. ctrl + t to adjust the text

This is my watermark photo