If you'd like to add not a built-in watermark, but a custom one, simply go to Design > Watermark > Custom Watermark. Next, select Picture watermark or Text watermark and either select a background ...

Watermarks are helpful visuals for letting others know your document is confidential, private, or that it shouldn’t be copied. These types of images (usually text or a logo) display in the background ...

Sometimes you might want to add a circular photo of the author on the last page of a text or presentations. Word and PowerPoint don’t offer this feature directly, but there are two ways to achieve it.