Learn how to make a fancy border in GIMP with this GIMP tricks video tutorial. This border can be used to frame images for YouTube videos or other things. Take your image, and go to Image and Canvas Size. The size should be made larger to allow room for your border and then click Center. On Layers, select All Layers. Then, click Resize. This allows you to make room for your Layer. On the far left side, right click on your layer and select Alpha to Selection. Go to Select, To Path, Select, and then None. Then, go to Edit, Stroke Path, and create your line for the border. The thickness of the line is up to you. The lines can be solid, dotted, or dashed.
Start your career in Graphic Design with the WonderHowTo's Beginners’s Guide to Photoshop Course