Heads up, Lifehacker readers and commenters: We've got an awesome new feature we're testing out called text annotation. You've probably seen our image annotation feature, where you can point out ...

LightTag, a newly launched startup from a former NLP researcher at Citi, has built a “text annotation platform” designed to assist data scientists who need to quickly create training data for their AI ...

PDF (Portable Document Format) is one of the most common file formats used to access multimedia content. Today, there are several ways on how to open them through dedicated PDF software. Over the past ...

In February the W3C approved recommendations to enable annotation on the web. There is a long lineage of annotation tools that enable readers of the web to write comments that overlay content and ...