Instapaper, the app that lets you save and share online articles, has just launched a new annotation functionality called Notes. The feature allows users to select a piece of text from an article or ...

Ever since I started using Obsidian to collate my digital research, I have continued to discover ways to maximize its functionalities. Lately, I’ve transitioned to Obsidian for handling PDFs and ...

The last time we explored Preview, OS X’s built-in document and image viewer, we discussed using it to crop and resize images, as well as how to undo those changes (see “The Power of Preview: Cropping ...

Even with a printed textbook, a highlighting marker can't do this: A free online program that allows students to annotate digitized content is helping learners analyze and debate the meaning of ...