Digital annotation simply means adding notes, highlights, comments, or drawings directly onto a digital file or screen. Instead of scribbling on paper, you can use a stylus, touchscreen, or even your mouse to mark up PDFs, slides, images, or live presentations.
It’s like the modern upgrade of writing in the margins of your textbook — but smarter, because your notes can be saved, shared, and edited later.
Don’t over-annotate! Too many highlights or notes can actually make a document harder to read. Use different colors or symbols (like arrows or circles) consistently, so your annotations stay clear and useful.