An image can say a lot. It can even tell a whole story. But naturally, not every image is capable of that. You need to compose it properly. It should be clear to the audience what the main subject is. And even then, people might see something entirely different from what you originally had in mind. Fortunately, by adding a caption, you can make things much clearer.
Just a few years ago, watermarks were mostly used by photographers and artists. As you may know, the main purpose of watermarks is to protect images from unauthorized use and copyright infringement. But as the popularity of social media platforms and various web services keeps growing, more and more people see the benefits of this tool. These days content creators and business owners, who promote their businesses online, utilize watermarks quite often. It may come as a surprise, but watermarks are more than a security tool.
Adding a watermark in PowerPoint usually means placing text, a logo, or another visual element in the background of your slides. You can use this approach to label a presentation as Draft, add branding, or apply a watermark to all slides or only selected ones.