Annotate Your PDFs
Whether you're reviewing a document, providing feedback, or adding notes for reference, UnblockPDF's annotation tools make it easy to mark up any PDF.
Available Annotation Tools
Text boxes let you add new text anywhere on the page.
Highlights draw attention to important passages with colored overlays.
Sticky notes add collapsible comments without cluttering the document.
Shapes like rectangles, circles, and arrows help point out specific areas.
Freehand drawing gives you complete freedom to mark up the document naturally.
Collaboration Workflow
Add your annotations, save the PDF, and share it with your team. They can see your comments and add their own using the same tools.