Poster Maker is a free app that makes it easy to create beautiful, professional posters in minutes. It has tons of awesome templates and hundreds of fonts. You can customize the fonts, text, and images, create borders, add text effects, change the background, and add a photo or other graphic design elements.

You can also create thumbnails and place them on a photo or video. And you can add a message to your image, write a title, or create a graphic design. You can add borders, background, and text effects. You can also change the layout and create a layout for the image or video.

Poster Maker is also an excellent graphic design app. It's easy to use and has tons of options.