The markup tool in Safari lets you highlight text, add notes, insert your signature, and more. To access it on Mac, take a screenshot of the webpage or convert it into a PDF and use the Markup tool ...

Data annotation, or the process of adding labels to images, text, audio and other forms of sample data, is typically a key step in developing AI systems. The vast majority of systems learn to make ...

PDFs are made for faithful viewing, not editing; text and images are flattened and hard to change. You can use LibreOffice Draw to replace images, edit text, annotate, and manage pages; it's free. For ...