How to Watermark an Image Using PowerPoint
A watermark is an image or pattern that appears as an semi-transparent object over the top of another image. This mark can be text or another identifying mark, and usually signifies that the image is copy-protected or branded. Proprietary or copyrighted material in a PowerPoint presentation can be watermarked so that the digital file cannot be used unlawfully. This same process can also be used to place a "bug" or logo in the bottom of your screen, a technique frequently seen in a television broadcast.
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Instructions
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Launch PowerPoint, then navigate to the individual slide you want to add the watermark to. Alternatively, place a watermark on every slide in your presentation by working with the Master. Select "View" from the toolbar, then click the "Master Views" group, then click "Slide Master."
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Click the "Insert" tab on the ribbon. Click "Picture" to add a picture as a watermark, then navigate to the location of the picture on your computer. Click "Insert." Alternatively, click "Clip Art" to add a clip art image as a watermark to your slide. Select the clip art you want, then click "Insert."
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Edit the size of the image to fit the desired portion of the screen by right-clicking on the image. Click "Size and Position" in the pop-up menu. Scale the image by increasing or decreasing the "Height" and "Width" box settings.
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Click "Format" under the "Picture Tools" tab. Click the "Adjust" group, then click "Correction." Click "Picture Corrections Options," then select the saturation level in the "Brightness and Contrast" option.
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Send the watermark to the back of the slide -- behind the other objects -- when you are finished editing the image. Click "Picture Tools" again, and select the "Format" tab. Click on the "Arrange" group. Click the arrow at "Send Backward." Choose "Send to Back."
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