How to make an area of a picture transparent in PPT2007

1. Click to open Microsoft Office PowerPoint? Presentation, select "View", click "Slide Master", we choose a red background image, complete click to close, as shown:

2. Click "Insert ", select a "lantern" picture, click on the lantern picture, in the "Format" select "recolor" as shown:

3 In "Recolor", select "Set Transparent Color", click on the white area of the "lantern" picture, as shown:

4. Then simply drag the "lantern" picture and place it in the right place.