Reviewing documents and collaborating with your team is seamless with our free online Annotate PDF tool. It provides a robust set of markup features allowing you to highlight text, draw freehand shapes, and add sticky notes directly onto your PDF pages. Whether you are a student reviewing lecture slides, a teacher grading assignments, or a professional providing feedback on a design mockup, this tool makes document markup incredibly fast, intuitive, and secure.
Easily Highlight PDF Text
Drawing attention to critical information is essential during the review process. Using our tool, you can effortlessly highlight PDF text in various colors to categorize your feedback. You can also strike through text that needs deletion or underline important phrases. These visual cues make it infinitely easier for your colleagues or classmates to understand your revisions without having to read a separate email explaining the changes.
Add Comments to PDF Securely
Communication is key in collaborative work. By allowing you to add comments to PDF files, our tool helps you attach detailed explanations right next to the relevant content. You can place text boxes or sticky notes anywhere on the page. Most importantly, all of these annotations are processed locally within your web browser. Your proprietary documents and private communications are never stored on our external servers, guaranteeing total data security.