How to make a watermark background in PowerPoint

Here is an easy way to put a subtle background image, called a watermark, on the background slides in your PowerPoint presentation. This example is for the Mac.

Step 1: Click on View and select Master, Slide Master.

Step 2: Place your graphic on the first slide in the Slide Master view.

Step 3: Click on the Size Option in the Formatting Palette. Select Arrange and Send to Back.

Step 4: In The Picture section of the Transform Palette, Click on Transparency and make it 80%.

Step 5: Click on View and select Normal. That's it! Enjoy!